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authorGravatar Abseil Team <absl-team@google.com>2018-12-04 11:01:12 -0800
committerGravatar Ashley Hedberg <ahedberg@google.com>2018-12-04 16:54:40 -0500
commitfcb104594b0bb4b8ac306cb2f55ecdad40974683 (patch)
treed2d79d246c6a894ca6716f47c15ebb7b8796b36a /absl/time
parent6c7de165d1c82684359ccb630bb5f83263fa5ebc (diff)
Creation of LTS branch "lts_2018_12_18"20181200
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5aae0cffae8ffaacab965756169b34e511b353df Fix CMake build (#173) by Stephan Dollberg <stephan.dollberg@gmail.com> - 48cd2c3f351ff188bc85684b84a91b6e6d17d896 Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - e291c279e458761e77a69b09b129d3d1e81f1e80 Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - e01d95528ea2137a4a27a88d1f57c6cb260aafed Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - 8ff1374008259719b54a8cb128ef951c02da164c Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - 02451914b9ad5320f81f56a89f3eef1f8683227c Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - 921fd5cf02ec0d665439a790148d59faa7d4a72c Merge pull request #166 from rongjiecomputer/cmake-test by Gennadiy Civil <gennadiycivil@users.noreply.github.com> - fb462224c058487763f263b7995d70efd0242c17 Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - c075ad321696fa5072e097f0a51e4fe76a6fe13e Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - 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16ac2ec2e38cdf47f9330a312e319d57da659c10 Merge pull request #134 from rongjiecomputer/cmake by Alex Strelnikov <strel@google.com> - 7efd8dc0f1075356e9c7caa950afd1ecf854e8b9 Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - 87a4c07856e7dc69958019d47b2f02ae47746ec0 Export of internal Abseil changes. by Abseil Team <absl-team@google.com> - 4491d606df34c44efda47b6d17b605262f17e182 Export of internal Abseil changes. by Abseil Team <absl-team@google.com> GitOrigin-RevId: 44b0fafc62d9b8f192e8180cbe9c4b806b339d57 Change-Id: I2c427b5b41b2d34101922048b00f3d9dafcb498d
Diffstat (limited to 'absl/time')
-rw-r--r--absl/time/BUILD.bazel9
-rw-r--r--absl/time/CMakeLists.txt4
-rw-r--r--absl/time/civil_time.cc90
-rw-r--r--absl/time/civil_time.h488
-rw-r--r--absl/time/civil_time_benchmark.cc107
-rw-r--r--absl/time/civil_time_test.cc1073
-rw-r--r--absl/time/clock.cc22
-rw-r--r--absl/time/clock.h4
-rw-r--r--absl/time/clock_test.cc94
-rw-r--r--absl/time/duration.cc31
-rw-r--r--absl/time/duration_benchmark.cc78
-rw-r--r--absl/time/duration_test.cc169
-rw-r--r--absl/time/format.cc20
-rw-r--r--absl/time/format_benchmark.cc7
-rw-r--r--absl/time/format_test.cc46
-rw-r--r--absl/time/internal/cctz/BUILD.bazel3
-rw-r--r--absl/time/internal/cctz/include/cctz/civil_time.h6
-rw-r--r--absl/time/internal/cctz/include/cctz/civil_time_detail.h78
-rw-r--r--absl/time/internal/cctz/include/cctz/time_zone.h133
-rw-r--r--absl/time/internal/cctz/include/cctz/zone_info_source.h13
-rw-r--r--absl/time/internal/cctz/src/cctz_benchmark.cc64
-rw-r--r--absl/time/internal/cctz/src/civil_time_detail.cc4
-rw-r--r--absl/time/internal/cctz/src/civil_time_test.cc6
-rw-r--r--absl/time/internal/cctz/src/time_zone_fixed.cc41
-rw-r--r--absl/time/internal/cctz/src/time_zone_fixed.h10
-rw-r--r--absl/time/internal/cctz/src/time_zone_format.cc23
-rw-r--r--absl/time/internal/cctz/src/time_zone_format_test.cc314
-rw-r--r--absl/time/internal/cctz/src/time_zone_if.cc4
-rw-r--r--absl/time/internal/cctz/src/time_zone_if.h32
-rw-r--r--absl/time/internal/cctz/src/time_zone_impl.cc17
-rw-r--r--absl/time/internal/cctz/src/time_zone_impl.h45
-rw-r--r--absl/time/internal/cctz/src/time_zone_info.cc114
-rw-r--r--absl/time/internal/cctz/src/time_zone_info.h16
-rw-r--r--absl/time/internal/cctz/src/time_zone_libc.cc222
-rw-r--r--absl/time/internal/cctz/src/time_zone_libc.h13
-rw-r--r--absl/time/internal/cctz/src/time_zone_lookup.cc41
-rw-r--r--absl/time/internal/cctz/src/time_zone_lookup_test.cc456
-rw-r--r--absl/time/internal/cctz/src/time_zone_posix.cc4
-rw-r--r--absl/time/internal/cctz/src/time_zone_posix.h46
-rw-r--r--absl/time/internal/cctz/src/tzfile.h2
-rw-r--r--absl/time/internal/cctz/src/zone_info_source.cc23
-rw-r--r--absl/time/internal/cctz/testdata/version2
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjanbin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Accrabin842 -> 828 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Abababin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiersbin760 -> 751 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmarabin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmerabin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamakobin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Banguibin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjulbin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissaubin208 -> 194 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyrebin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzavillebin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumburabin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairobin1972 -> 1963 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablancabin1643 -> 1533 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceutabin2059 -> 2050 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakrybin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakarbin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaambin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Djiboutibin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Doualabin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/El_Aaiunbin1473 -> 1403 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Freetownbin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Gaboronebin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Hararebin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Johannesburgbin271 -> 262 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Jubabin683 -> 669 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Kampalabin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Khartoumbin713 -> 699 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Kigalibin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Kinshasabin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Lagosbin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Librevillebin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Lomebin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Luandabin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Lubumbashibin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Lusakabin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Malabobin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Maputobin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Maserubin271 -> 262 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Mbabanebin271 -> 262 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Mogadishubin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Monroviabin233 -> 224 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Nairobibin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Ndjamenabin225 -> 211 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Niameybin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Nouakchottbin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Ouagadougoubin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Porto-Novobin171 -> 157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Sao_Tomebin234 -> 225 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Timbuktubin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Tripolibin655 -> 641 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Tunisbin710 -> 701 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Africa/Windhoekbin988 -> 979 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Adakbin2365 -> 2356 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Anchoragebin2380 -> 2371 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Anguillabin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Antiguabin170 -> 156 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Araguainabin910 -> 896 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Buenos_Airesbin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Catamarcabin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/ComodRivadaviabin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Cordobabin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Jujuybin1081 -> 1072 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/La_Riojabin1123 -> 1114 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Mendozabin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Rio_Gallegosbin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Saltabin1081 -> 1072 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/San_Juanbin1123 -> 1114 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/San_Luisbin1139 -> 1130 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Tucumanbin1137 -> 1128 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Ushuaiabin1109 -> 1100 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Arubabin212 -> 198 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Asuncionbin2077 -> 2068 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Atikokanbin345 -> 336 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Atkabin2365 -> 2356 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Bahiabin1050 -> 1036 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Bahia_Banderasbin1588 -> 1574 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Barbadosbin344 -> 330 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/America/Belembin602 -> 588 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Canarybin1911 -> 1897 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Cubabin2437 -> 2428 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/ESTbin127 -> 118 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Etc/GMTbin127 -> 118 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Europe/Amsterdambin2949 -> 2940 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Europe/Chisinaubin2445 -> 2436 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Factorybin148 -> 120 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Hongkongbin1189 -> 1175 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Indian/Antananarivobin285 -> 271 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Indian/Mauritiusbin267 -> 253 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Indian/Mayottebin285 -> 271 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Indian/Reunionbin187 -> 173 bytes
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-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Israelbin2265 -> 2256 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Jamaicabin507 -> 498 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Japanbin318 -> 309 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Kwajaleinbin259 -> 250 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Libyabin655 -> 641 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/METbin2102 -> 2102 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/MSTbin127 -> 118 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/MST7MDTbin2294 -> 2294 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Mexico/BajaNortebin2356 -> 2342 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Mexico/BajaSurbin1564 -> 1550 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Mexico/Generalbin1618 -> 1604 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/NZbin2460 -> 2451 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/NZ-CHATbin2087 -> 2078 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Navajobin2453 -> 2444 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/PRCbin414 -> 545 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/PST8PDTbin2294 -> 2294 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Apiabin1134 -> 1125 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Aucklandbin2460 -> 2451 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Bougainvillebin296 -> 286 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Chathambin2087 -> 2078 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Chuukbin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Easterbin2242 -> 2233 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Efatebin492 -> 478 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Enderburybin259 -> 250 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Fakaofobin221 -> 212 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Fijibin1104 -> 1090 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Funafutibin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Galapagosbin268 -> 254 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Gambierbin186 -> 172 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Guadalcanalbin188 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Guambin225 -> 216 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Honolulubin276 -> 329 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Johnstonbin276 -> 329 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kiritimatibin263 -> 254 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kosraebin251 -> 242 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kwajaleinbin259 -> 250 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Majurobin221 -> 212 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Marquesasbin195 -> 181 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Midwaybin196 -> 187 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Naurubin282 -> 268 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Niuebin266 -> 257 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Norfolkbin323 -> 314 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Noumeabin328 -> 314 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pago_Pagobin196 -> 187 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Palaubin182 -> 173 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pitcairnbin223 -> 214 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pohnpeibin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Ponapebin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Port_Moresbybin206 -> 196 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Rarotongabin602 -> 593 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Saipanbin225 -> 216 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Samoabin196 -> 187 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tahitibin187 -> 173 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tarawabin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tongatapubin393 -> 384 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Trukbin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wakebin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wallisbin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Pacific/Yapbin183 -> 174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Polandbin2705 -> 2696 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Portugalbin3469 -> 3469 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/ROCbin790 -> 781 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/ROKbin531 -> 517 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Singaporebin424 -> 415 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Turkeybin2166 -> 2157 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/UCTbin127 -> 118 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Alaskabin2380 -> 2371 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Aleutianbin2365 -> 2356 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Arizonabin353 -> 344 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Centralbin3585 -> 3576 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/East-Indianabin1675 -> 1666 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Easternbin3545 -> 3536 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Hawaiibin276 -> 329 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starkebin2437 -> 2428 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Michiganbin2188 -> 2174 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Mountainbin2453 -> 2444 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Pacificbin2845 -> 2836 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/US/Samoabin196 -> 187 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/UTCbin127 -> 118 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Universalbin127 -> 118 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/W-SUbin1544 -> 1535 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/WETbin1873 -> 1873 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/Zulubin127 -> 118 bytes
-rw-r--r--absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab34
-rw-r--r--absl/time/internal/get_current_time_chrono.inc31
-rw-r--r--absl/time/internal/get_current_time_ios.inc82
-rw-r--r--absl/time/internal/get_current_time_posix.inc4
-rw-r--r--absl/time/internal/get_current_time_windows.inc19
-rw-r--r--absl/time/internal/test_util.cc14
-rw-r--r--absl/time/internal/test_util.h28
-rw-r--r--absl/time/time.cc338
-rw-r--r--absl/time/time.h843
-rw-r--r--absl/time/time_benchmark.cc38
-rw-r--r--absl/time/time_norm_test.cc306
-rw-r--r--absl/time/time_test.cc393
-rw-r--r--absl/time/time_zone_test.cc2
647 files changed, 4328 insertions, 1778 deletions
diff --git a/absl/time/BUILD.bazel b/absl/time/BUILD.bazel
index e793da87..4d9c01c4 100644
--- a/absl/time/BUILD.bazel
+++ b/absl/time/BUILD.bazel
@@ -27,15 +27,16 @@ licenses(["notice"]) # Apache 2.0
cc_library(
name = "time",
srcs = [
+ "civil_time.cc",
"clock.cc",
"duration.cc",
"format.cc",
- "internal/get_current_time_ios.inc",
+ "internal/get_current_time_chrono.inc",
"internal/get_current_time_posix.inc",
- "internal/get_current_time_windows.inc",
"time.cc",
],
hdrs = [
+ "civil_time.h",
"clock.h",
"time.h",
],
@@ -73,10 +74,10 @@ cc_library(
cc_test(
name = "time_test",
srcs = [
+ "civil_time_test.cc",
"clock_test.cc",
"duration_test.cc",
"format_test.cc",
- "time_norm_test.cc",
"time_test.cc",
"time_zone_test.cc",
],
@@ -95,6 +96,7 @@ cc_test(
cc_test(
name = "time_benchmark",
srcs = [
+ "civil_time_benchmark.cc",
"clock_benchmark.cc",
"duration_benchmark.cc",
"format_benchmark.cc",
@@ -108,6 +110,7 @@ cc_test(
":test_util",
":time",
"//absl/base",
+ "//absl/hash",
"@com_github_google_benchmark//:benchmark_main",
],
)
diff --git a/absl/time/CMakeLists.txt b/absl/time/CMakeLists.txt
index 06272364..53216cda 100644
--- a/absl/time/CMakeLists.txt
+++ b/absl/time/CMakeLists.txt
@@ -15,6 +15,7 @@
#
list(APPEND TIME_PUBLIC_HEADERS
+ "civil_time.h"
"clock.h"
"time.h"
)
@@ -29,6 +30,7 @@ list(APPEND TIME_INTERNAL_HEADERS
)
list(APPEND TIME_SRC
+ "civil_time.cc"
"time.cc"
"clock.cc"
"duration.cc"
@@ -74,11 +76,11 @@ absl_library(
# test time_test
list(APPEND TIME_TEST_SRC
+ "civil_time_test.cc"
"time_test.cc"
"clock_test.cc"
"duration_test.cc"
"format_test.cc"
- "time_norm_test.cc"
"time_test.cc"
"time_zone_test.cc"
"internal/test_util.cc"
diff --git a/absl/time/civil_time.cc b/absl/time/civil_time.cc
new file mode 100644
index 00000000..c6fa5469
--- /dev/null
+++ b/absl/time/civil_time.cc
@@ -0,0 +1,90 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/time/civil_time.h"
+
+#include <cstdlib>
+#include <string>
+
+#include "absl/strings/str_cat.h"
+#include "absl/time/time.h"
+
+namespace absl {
+inline namespace lts_2018_12_18 {
+
+namespace {
+
+// Since a civil time has a larger year range than absl::Time (64-bit years vs
+// 64-bit seconds, respectively) we normalize years to roughly +/- 400 years
+// around the year 2400, which will produce an equivalent year in a range that
+// absl::Time can handle.
+inline civil_year_t NormalizeYear(civil_year_t year) {
+ return 2400 + year % 400;
+}
+
+// Formats the given CivilSecond according to the given format.
+std::string FormatYearAnd(string_view fmt, CivilSecond cs) {
+ const CivilSecond ncs(NormalizeYear(cs.year()), cs.month(), cs.day(),
+ cs.hour(), cs.minute(), cs.second());
+ const TimeZone utc = UTCTimeZone();
+ // TODO(absl-team): Avoid conversion of fmt std::string.
+ return StrCat(cs.year(), FormatTime(std::string(fmt), FromCivil(ncs, utc), utc));
+}
+
+} // namespace
+
+std::string FormatCivilTime(CivilSecond c) {
+ return FormatYearAnd("-%m-%dT%H:%M:%S", c);
+}
+std::string FormatCivilTime(CivilMinute c) {
+ return FormatYearAnd("-%m-%dT%H:%M", c);
+}
+std::string FormatCivilTime(CivilHour c) {
+ return FormatYearAnd("-%m-%dT%H", c);
+}
+std::string FormatCivilTime(CivilDay c) {
+ return FormatYearAnd("-%m-%d", c);
+}
+std::string FormatCivilTime(CivilMonth c) {
+ return FormatYearAnd("-%m", c);
+}
+std::string FormatCivilTime(CivilYear c) {
+ return FormatYearAnd("", c);
+}
+
+namespace time_internal {
+
+std::ostream& operator<<(std::ostream& os, CivilYear y) {
+ return os << FormatCivilTime(y);
+}
+std::ostream& operator<<(std::ostream& os, CivilMonth m) {
+ return os << FormatCivilTime(m);
+}
+std::ostream& operator<<(std::ostream& os, CivilDay d) {
+ return os << FormatCivilTime(d);
+}
+std::ostream& operator<<(std::ostream& os, CivilHour h) {
+ return os << FormatCivilTime(h);
+}
+std::ostream& operator<<(std::ostream& os, CivilMinute m) {
+ return os << FormatCivilTime(m);
+}
+std::ostream& operator<<(std::ostream& os, CivilSecond s) {
+ return os << FormatCivilTime(s);
+}
+
+} // namespace time_internal
+
+} // inline namespace lts_2018_12_18
+} // namespace absl
diff --git a/absl/time/civil_time.h b/absl/time/civil_time.h
new file mode 100644
index 00000000..f6cc3ff8
--- /dev/null
+++ b/absl/time/civil_time.h
@@ -0,0 +1,488 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// -----------------------------------------------------------------------------
+// File: civil_time.h
+// -----------------------------------------------------------------------------
+//
+// This header file defines abstractions for computing with "civil time".
+// The term "civil time" refers to the legally recognized human-scale time
+// that is represented by the six fields `YYYY-MM-DD hh:mm:ss`. A "date"
+// is perhaps the most common example of a civil time (represented here as
+// an `absl::CivilDay`).
+//
+// Modern-day civil time follows the Gregorian Calendar and is a
+// time-zone-independent concept: a civil time of "2015-06-01 12:00:00", for
+// example, is not tied to a time zone. Put another way, a civil time does not
+// map to a unique point in time; a civil time must be mapped to an absolute
+// time *through* a time zone.
+//
+// Because a civil time is what most people think of as "time," it is common to
+// map absolute times to civil times to present to users.
+//
+// Time zones define the relationship between absolute and civil times. Given an
+// absolute or civil time and a time zone, you can compute the other time:
+//
+// Civil Time = F(Absolute Time, Time Zone)
+// Absolute Time = G(Civil Time, Time Zone)
+//
+// The Abseil time library allows you to construct such civil times from
+// absolute times; consult time.h for such functionality.
+//
+// This library provides six classes for constructing civil-time objects, and
+// provides several helper functions for rounding, iterating, and performing
+// arithmetic on civil-time objects, while avoiding complications like
+// daylight-saving time (DST):
+//
+// * `absl::CivilSecond`
+// * `absl::CivilMinute`
+// * `absl::CivilHour`
+// * `absl::CivilDay`
+// * `absl::CivilMonth`
+// * `absl::CivilYear`
+//
+// Example:
+//
+// // Construct a civil-time object for a specific day
+// const absl::CivilDay cd(1969, 07, 20);
+//
+// // Construct a civil-time object for a specific second
+// const absl::CivilSecond cd(2018, 8, 1, 12, 0, 1);
+//
+// Note: In C++14 and later, this library is usable in a constexpr context.
+//
+// Example:
+//
+// // Valid in C++14
+// constexpr absl::CivilDay cd(1969, 07, 20);
+//
+
+#ifndef ABSL_TIME_CIVIL_TIME_H_
+#define ABSL_TIME_CIVIL_TIME_H_
+
+#include <string>
+
+#include "absl/strings/string_view.h"
+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
+
+namespace absl {
+inline namespace lts_2018_12_18 {
+
+namespace time_internal {
+struct second_tag : cctz::detail::second_tag {};
+struct minute_tag : second_tag, cctz::detail::minute_tag {};
+struct hour_tag : minute_tag, cctz::detail::hour_tag {};
+struct day_tag : hour_tag, cctz::detail::day_tag {};
+struct month_tag : day_tag, cctz::detail::month_tag {};
+struct year_tag : month_tag, cctz::detail::year_tag {};
+} // namespace time_internal
+
+// -----------------------------------------------------------------------------
+// CivilSecond, CivilMinute, CivilHour, CivilDay, CivilMonth, CivilYear
+// -----------------------------------------------------------------------------
+//
+// Each of these civil-time types is a simple value type with the same
+// interface for construction and the same six accessors for each of the civil
+// time fields (year, month, day, hour, minute, and second, aka YMDHMS). These
+// classes differ only in their alignment, which is indicated by the type name
+// and specifies the field on which arithmetic operates.
+//
+// CONSTRUCTION
+//
+// Each of the civil-time types can be constructed in two ways: by directly
+// passing to the constructor up to six integers representing the YMDHMS fields,
+// or by copying the YMDHMS fields from a differently aligned civil-time type.
+// Omitted fields are assigned their minimum valid value. Hours, minutes, and
+// seconds will be set to 0, month and day will be set to 1. Since there is no
+// minimum year, the default is 1970.
+//
+// Examples:
+//
+// absl::CivilDay default_value; // 1970-01-01 00:00:00
+//
+// absl::CivilDay a(2015, 2, 3); // 2015-02-03 00:00:00
+// absl::CivilDay b(2015, 2, 3, 4, 5, 6); // 2015-02-03 00:00:00
+// absl::CivilDay c(2015); // 2015-01-01 00:00:00
+//
+// absl::CivilSecond ss(2015, 2, 3, 4, 5, 6); // 2015-02-03 04:05:06
+// absl::CivilMinute mm(ss); // 2015-02-03 04:05:00
+// absl::CivilHour hh(mm); // 2015-02-03 04:00:00
+// absl::CivilDay d(hh); // 2015-02-03 00:00:00
+// absl::CivilMonth m(d); // 2015-02-01 00:00:00
+// absl::CivilYear y(m); // 2015-01-01 00:00:00
+//
+// m = absl::CivilMonth(y); // 2015-01-01 00:00:00
+// d = absl::CivilDay(m); // 2015-01-01 00:00:00
+// hh = absl::CivilHour(d); // 2015-01-01 00:00:00
+// mm = absl::CivilMinute(hh); // 2015-01-01 00:00:00
+// ss = absl::CivilSecond(mm); // 2015-01-01 00:00:00
+//
+// Each civil-time class is aligned to the civil-time field indicated in the
+// class's name after normalization. Alignment is performed by setting all the
+// inferior fields to their minimum valid value (as described above). The
+// following are examples of how each of the six types would align the fields
+// representing November 22, 2015 at 12:34:56 in the afternoon. (Note: the
+// string format used here is not important; it's just a shorthand way of
+// showing the six YMDHMS fields.)
+//
+// absl::CivilSecond : 2015-11-22 12:34:56
+// absl::CivilMinute : 2015-11-22 12:34:00
+// absl::CivilHour : 2015-11-22 12:00:00
+// absl::CivilDay : 2015-11-22 00:00:00
+// absl::CivilMonth : 2015-11-01 00:00:00
+// absl::CivilYear : 2015-01-01 00:00:00
+//
+// Each civil-time type performs arithmetic on the field to which it is
+// aligned. This means that adding 1 to an absl::CivilDay increments the day
+// field (normalizing as necessary), and subtracting 7 from an absl::CivilMonth
+// operates on the month field (normalizing as necessary). All arithmetic
+// produces a valid civil time. Difference requires two similarly aligned
+// civil-time objects and returns the scalar answer in units of the objects'
+// alignment. For example, the difference between two absl::CivilHour objects
+// will give an answer in units of civil hours.
+//
+// ALIGNMENT CONVERSION
+//
+// The alignment of a civil-time object cannot change, but the object may be
+// used to construct a new object with a different alignment. This is referred
+// to as "realigning". When realigning to a type with the same or more
+// precision (e.g., absl::CivilDay -> absl::CivilSecond), the conversion may be
+// performed implicitly since no information is lost. However, if information
+// could be discarded (e.g., CivilSecond -> CivilDay), the conversion must
+// be explicit at the call site.
+//
+// Examples:
+//
+// void UseDay(absl::CivilDay day);
+//
+// absl::CivilSecond cs;
+// UseDay(cs); // Won't compile because data may be discarded
+// UseDay(absl::CivilDay(cs)); // OK: explicit conversion
+//
+// absl::CivilDay cd;
+// UseDay(cd); // OK: no conversion needed
+//
+// absl::CivilMonth cm;
+// UseDay(cm); // OK: implicit conversion to absl::CivilDay
+//
+// NORMALIZATION
+//
+// Normalization takes invalid values and adjusts them to produce valid values.
+// Within the civil-time library, integer arguments passed to the Civil*
+// constructors may be out-of-range, in which case they are normalized by
+// carrying overflow into a field of courser granularity to produce valid
+// civil-time objects. This normalization enables natural arithmetic on
+// constructor arguments without worrying about the field's range.
+//
+// Examples:
+//
+// // Out-of-range; normalized to 2016-11-01
+// absl::CivilDay d(2016, 10, 32);
+// // Out-of-range, negative: normalized to 2016-10-30T23
+// absl::CivilHour h1(2016, 10, 31, -1);
+// // Normalization is cumulative: normalized to 2016-10-30T23
+// absl::CivilHour h2(2016, 10, 32, -25);
+//
+// Note: If normalization is undesired, you can signal an error by comparing
+// the constructor arguments to the normalized values returned by the YMDHMS
+// properties.
+//
+// COMPARISON
+//
+// Comparison between civil-time objects considers all six YMDHMS fields,
+// regardless of the type's alignment. Comparison between differently aligned
+// civil-time types is allowed.
+//
+// Examples:
+//
+// absl::CivilDay feb_3(2015, 2, 3); // 2015-02-03 00:00:00
+// absl::CivilDay mar_4(2015, 3, 4); // 2015-03-04 00:00:00
+// // feb_3 < mar_4
+// // absl::CivilYear(feb_3) == absl::CivilYear(mar_4)
+//
+// absl::CivilSecond feb_3_noon(2015, 2, 3, 12, 0, 0); // 2015-02-03 12:00:00
+// // feb_3 < feb_3_noon
+// // feb_3 == absl::CivilDay(feb_3_noon)
+//
+// // Iterates all the days of February 2015.
+// for (absl::CivilDay d(2015, 2, 1); d < absl::CivilMonth(2015, 3); ++d) {
+// // ...
+// }
+//
+// ARITHMETIC
+//
+// Civil-time types support natural arithmetic operators such as addition,
+// subtraction, and difference. Arithmetic operates on the civil-time field
+// indicated in the type's name. Difference operators require arguments with
+// the same alignment and return the answer in units of the alignment.
+//
+// Example:
+//
+// absl::CivilDay a(2015, 2, 3);
+// ++a; // 2015-02-04 00:00:00
+// --a; // 2015-02-03 00:00:00
+// absl::CivilDay b = a + 1; // 2015-02-04 00:00:00
+// absl::CivilDay c = 1 + b; // 2015-02-05 00:00:00
+// int n = c - a; // n = 2 (civil days)
+// int m = c - absl::CivilMonth(c); // Won't compile: different types.
+//
+// ACCESSORS
+//
+// Each civil-time type has accessors for all six of the civil-time fields:
+// year, month, day, hour, minute, and second.
+//
+// civil_year_t year()
+// int month()
+// int day()
+// int hour()
+// int minute()
+// int second()
+//
+// Recall that fields inferior to the type's aligment will be set to their
+// minimum valid value.
+//
+// Example:
+//
+// absl::CivilDay d(2015, 6, 28);
+// // d.year() == 2015
+// // d.month() == 6
+// // d.day() == 28
+// // d.hour() == 0
+// // d.minute() == 0
+// // d.second() == 0
+//
+// CASE STUDY: Adding a month to January 31.
+//
+// One of the classic questions that arises when considering a civil time
+// library (or a date library or a date/time library) is this:
+// "What is the result of adding a month to January 31?"
+// This is an interesting question because it is unclear what is meant by a
+// "month", and several different answers are possible, depending on context:
+//
+// 1. March 3 (or 2 if a leap year), if "add a month" means to add a month to
+// the current month, and adjust the date to overflow the extra days into
+// March. In this case the result of "February 31" would be normalized as
+// within the civil-time library.
+// 2. February 28 (or 29 if a leap year), if "add a month" means to add a
+// month, and adjust the date while holding the resulting month constant.
+// In this case, the result of "February 31" would be truncated to the last
+// day in February.
+// 3. An error. The caller may get some error, an exception, an invalid date
+// object, or perhaps return `false`. This may make sense because there is
+// no single unambiguously correct answer to the question.
+//
+// Practically speaking, any answer that is not what the programmer intended
+// is the wrong answer.
+//
+// The Abseil time library avoids this problem by making it impossible to
+// ask ambiguous questions. All civil-time objects are aligned to a particular
+// civil-field boundary (such as aligned to a year, month, day, hour, minute,
+// or second), and arithmetic operates on the field to which the object is
+// aligned. This means that in order to "add a month" the object must first be
+// aligned to a month boundary, which is equivalent to the first day of that
+// month.
+//
+// Of course, there are ways to compute an answer the question at hand using
+// this Abseil time library, but they require the programmer to be explicit
+// about the answer they expect. To illustrate, let's see how to compute all
+// three of the above possible answers to the question of "Jan 31 plus 1
+// month":
+//
+// Example:
+//
+// const absl::CivilDay d(2015, 1, 31);
+//
+// // Answer 1:
+// // Add 1 to the month field in the constructor, and rely on normalization.
+// const auto normalized = absl::CivilDay(d.year(), d.month() + 1, d.day());
+// // normalized == 2015-03-03 (aka Feb 31)
+//
+// // Answer 2:
+// // Add 1 to month field, capping to the end of next month.
+// const auto next_month = absl::CivilMonth(d) + 1;
+// const auto last_day_of_next_month = absl::CivilDay(next_month + 1) - 1;
+// const auto capped = std::min(normalized, last_day_of_next_month);
+// // capped == 2015-02-28
+//
+// // Answer 3:
+// // Signal an error if the normalized answer is not in next month.
+// if (absl::CivilMonth(normalized) != next_month) {
+// // error, month overflow
+// }
+//
+using CivilSecond =
+ time_internal::cctz::detail::civil_time<time_internal::second_tag>;
+using CivilMinute =
+ time_internal::cctz::detail::civil_time<time_internal::minute_tag>;
+using CivilHour =
+ time_internal::cctz::detail::civil_time<time_internal::hour_tag>;
+using CivilDay =
+ time_internal::cctz::detail::civil_time<time_internal::day_tag>;
+using CivilMonth =
+ time_internal::cctz::detail::civil_time<time_internal::month_tag>;
+using CivilYear =
+ time_internal::cctz::detail::civil_time<time_internal::year_tag>;
+
+// civil_year_t
+//
+// Type alias of a civil-time year value. This type is guaranteed to (at least)
+// support any year value supported by `time_t`.
+//
+// Example:
+//
+// absl::CivilSecond cs = ...;
+// absl::civil_year_t y = cs.year();
+// cs = absl::CivilSecond(y, 1, 1, 0, 0, 0); // CivilSecond(CivilYear(cs))
+//
+using civil_year_t = time_internal::cctz::year_t;
+
+// civil_diff_t
+//
+// Type alias of the difference between two civil-time values.
+// This type is used to indicate arguments that are not
+// normalized (such as parameters to the civil-time constructors), the results
+// of civil-time subtraction, or the operand to civil-time addition.
+//
+// Example:
+//
+// absl::civil_diff_t n_sec = cs1 - cs2; // cs1 == cs2 + n_sec;
+//
+using civil_diff_t = time_internal::cctz::diff_t;
+
+// Weekday::monday, Weekday::tuesday, Weekday::wednesday, Weekday::thursday,
+// Weekday::friday, Weekday::saturday, Weekday::sunday
+//
+// The Weekday enum class represents the civil-time concept of a "weekday" with
+// members for all days of the week.
+//
+// absl::Weekday wd = absl::Weekday::thursday;
+//
+using Weekday = time_internal::cctz::weekday;
+
+// GetWeekday()
+//
+// Returns the absl::Weekday for the given absl::CivilDay.
+//
+// Example:
+//
+// absl::CivilDay a(2015, 8, 13);
+// absl::Weekday wd = absl::GetWeekday(a); // wd == absl::Weekday::thursday
+//
+inline Weekday GetWeekday(CivilDay cd) {
+ return time_internal::cctz::get_weekday(cd);
+}
+
+// NextWeekday()
+// PrevWeekday()
+//
+// Returns the absl::CivilDay that strictly follows or precedes a given
+// absl::CivilDay, and that falls on the given absl::Weekday.
+//
+// Example, given the following month:
+//
+// August 2015
+// Su Mo Tu We Th Fr Sa
+// 1
+// 2 3 4 5 6 7 8
+// 9 10 11 12 13 14 15
+// 16 17 18 19 20 21 22
+// 23 24 25 26 27 28 29
+// 30 31
+//
+// absl::CivilDay a(2015, 8, 13);
+// // absl::GetWeekday(a) == absl::Weekday::thursday
+// absl::CivilDay b = absl::NextWeekday(a, absl::Weekday::thursday);
+// // b = 2015-08-20
+// absl::CivilDay c = absl::PrevWeekday(a, absl::Weekday::thursday);
+// // c = 2015-08-06
+//
+// absl::CivilDay d = ...
+// // Gets the following Thursday if d is not already Thursday
+// absl::CivilDay thurs1 = absl::PrevWeekday(d, absl::Weekday::thursday) + 7;
+// // Gets the previous Thursday if d is not already Thursday
+// absl::CivilDay thurs2 = absl::NextWeekday(d, absl::Weekday::thursday) - 7;
+//
+inline CivilDay NextWeekday(CivilDay cd, Weekday wd) {
+ return CivilDay(time_internal::cctz::next_weekday(cd, wd));
+}
+inline CivilDay PrevWeekday(CivilDay cd, Weekday wd) {
+ return CivilDay(time_internal::cctz::prev_weekday(cd, wd));
+}
+
+// GetYearDay()
+//
+// Returns the day-of-year for the given absl::CivilDay.
+//
+// Example:
+//
+// absl::CivilDay a(2015, 1, 1);
+// int yd_jan_1 = absl::GetYearDay(a); // yd_jan_1 = 1
+// absl::CivilDay b(2015, 12, 31);
+// int yd_dec_31 = absl::GetYearDay(b); // yd_dec_31 = 365
+//
+inline int GetYearDay(CivilDay cd) {
+ return time_internal::cctz::get_yearday(cd);
+}
+
+// FormatCivilTime()
+//
+// Formats the given civil-time value into a string value of the following
+// format:
+//
+// Type | Format
+// ---------------------------------
+// CivilSecond | YYYY-MM-DDTHH:MM:SS
+// CivilMinute | YYYY-MM-DDTHH:MM
+// CivilHour | YYYY-MM-DDTHH
+// CivilDay | YYYY-MM-DD
+// CivilMonth | YYYY-MM
+// CivilYear | YYYY
+//
+// Example:
+//
+// absl::CivilDay d = absl::CivilDay(1969, 7, 20);
+// string day_string = absl::FormatCivilTime(d); // "1969-07-20"
+//
+std::string FormatCivilTime(CivilSecond c);
+std::string FormatCivilTime(CivilMinute c);
+std::string FormatCivilTime(CivilHour c);
+std::string FormatCivilTime(CivilDay c);
+std::string FormatCivilTime(CivilMonth c);
+std::string FormatCivilTime(CivilYear c);
+
+namespace time_internal { // For functions found via ADL on civil-time tags.
+
+// Streaming Operators
+//
+// Each civil-time type may be sent to an output stream using operator<<().
+// The result matches the string produced by `FormatCivilTime()`.
+//
+// Example:
+//
+// absl::CivilDay d = absl::CivilDay("1969-07-20");
+// std::cout << "Date is: " << d << "\n";
+//
+std::ostream& operator<<(std::ostream& os, CivilYear y);
+std::ostream& operator<<(std::ostream& os, CivilMonth m);
+std::ostream& operator<<(std::ostream& os, CivilDay d);
+std::ostream& operator<<(std::ostream& os, CivilHour h);
+std::ostream& operator<<(std::ostream& os, CivilMinute m);
+std::ostream& operator<<(std::ostream& os, CivilSecond s);
+
+} // namespace time_internal
+
+} // inline namespace lts_2018_12_18
+} // namespace absl
+
+#endif // ABSL_TIME_CIVIL_TIME_H_
diff --git a/absl/time/civil_time_benchmark.cc b/absl/time/civil_time_benchmark.cc
new file mode 100644
index 00000000..f30f636d
--- /dev/null
+++ b/absl/time/civil_time_benchmark.cc
@@ -0,0 +1,107 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/time/civil_time.h"
+
+#include <numeric>
+#include <vector>
+
+#include "absl/hash/hash.h"
+#include "benchmark/benchmark.h"
+
+namespace {
+
+// Run on (12 X 3492 MHz CPUs); 2018-11-05T13:44:29.814239103-08:00
+// CPU: Intel Haswell with HyperThreading (6 cores) dL1:32KB dL2:256KB dL3:15MB
+// Benchmark Time(ns) CPU(ns) Iterations
+// ----------------------------------------------------------------
+// BM_Difference_Days 14.5 14.5 48531105
+// BM_Step_Days 12.6 12.6 54876006
+// BM_Format 587 587 1000000
+// BM_Parse 692 692 1000000
+// BM_RoundTripFormatParse 1309 1309 532075
+// BM_CivilYearAbslHash 0.710 0.710 976400000
+// BM_CivilMonthAbslHash 1.13 1.13 619500000
+// BM_CivilDayAbslHash 1.70 1.70 426000000
+// BM_CivilHourAbslHash 2.45 2.45 287600000
+// BM_CivilMinuteAbslHash 3.21 3.21 226200000
+// BM_CivilSecondAbslHash 4.10 4.10 171800000
+
+void BM_Difference_Days(benchmark::State& state) {
+ const absl::CivilDay c(2014, 8, 22);
+ const absl::CivilDay epoch(1970, 1, 1);
+ while (state.KeepRunning()) {
+ const absl::civil_diff_t n = c - epoch;
+ benchmark::DoNotOptimize(n);
+ }
+}
+BENCHMARK(BM_Difference_Days);
+
+void BM_Step_Days(benchmark::State& state) {
+ const absl::CivilDay kStart(2014, 8, 22);
+ absl::CivilDay c = kStart;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(++c);
+ }
+}
+BENCHMARK(BM_Step_Days);
+
+void BM_Format(benchmark::State& state) {
+ const absl::CivilSecond c(2014, 1, 2, 3, 4, 5);
+ while (state.KeepRunning()) {
+ const std::string s = absl::FormatCivilTime(c);
+ benchmark::DoNotOptimize(s);
+ }
+}
+BENCHMARK(BM_Format);
+
+template <typename T>
+void BM_CivilTimeAbslHash(benchmark::State& state) {
+ const int kSize = 100000;
+ std::vector<T> civil_times(kSize);
+ std::iota(civil_times.begin(), civil_times.end(), T(2018));
+
+ absl::Hash<T> absl_hasher;
+ while (state.KeepRunningBatch(kSize)) {
+ for (const T civil_time : civil_times) {
+ benchmark::DoNotOptimize(absl_hasher(civil_time));
+ }
+ }
+}
+void BM_CivilYearAbslHash(benchmark::State& state) {
+ BM_CivilTimeAbslHash<absl::CivilYear>(state);
+}
+void BM_CivilMonthAbslHash(benchmark::State& state) {
+ BM_CivilTimeAbslHash<absl::CivilMonth>(state);
+}
+void BM_CivilDayAbslHash(benchmark::State& state) {
+ BM_CivilTimeAbslHash<absl::CivilDay>(state);
+}
+void BM_CivilHourAbslHash(benchmark::State& state) {
+ BM_CivilTimeAbslHash<absl::CivilHour>(state);
+}
+void BM_CivilMinuteAbslHash(benchmark::State& state) {
+ BM_CivilTimeAbslHash<absl::CivilMinute>(state);
+}
+void BM_CivilSecondAbslHash(benchmark::State& state) {
+ BM_CivilTimeAbslHash<absl::CivilSecond>(state);
+}
+BENCHMARK(BM_CivilYearAbslHash);
+BENCHMARK(BM_CivilMonthAbslHash);
+BENCHMARK(BM_CivilDayAbslHash);
+BENCHMARK(BM_CivilHourAbslHash);
+BENCHMARK(BM_CivilMinuteAbslHash);
+BENCHMARK(BM_CivilSecondAbslHash);
+
+} // namespace
diff --git a/absl/time/civil_time_test.cc b/absl/time/civil_time_test.cc
new file mode 100644
index 00000000..dc83d7a9
--- /dev/null
+++ b/absl/time/civil_time_test.cc
@@ -0,0 +1,1073 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/time/civil_time.h"
+
+#include <limits>
+#include <sstream>
+#include <type_traits>
+
+#include "absl/base/macros.h"
+#include "gtest/gtest.h"
+
+namespace {
+
+TEST(CivilTime, DefaultConstruction) {
+ absl::CivilSecond ss;
+ EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(ss));
+
+ absl::CivilMinute mm;
+ EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(mm));
+
+ absl::CivilHour hh;
+ EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hh));
+
+ absl::CivilDay d;
+ EXPECT_EQ("1970-01-01", absl::FormatCivilTime(d));
+
+ absl::CivilMonth m;
+ EXPECT_EQ("1970-01", absl::FormatCivilTime(m));
+
+ absl::CivilYear y;
+ EXPECT_EQ("1970", absl::FormatCivilTime(y));
+}
+
+TEST(CivilTime, StructMember) {
+ struct S {
+ absl::CivilDay day;
+ };
+ S s = {};
+ EXPECT_EQ(absl::CivilDay{}, s.day);
+}
+
+TEST(CivilTime, FieldsConstruction) {
+ EXPECT_EQ("2015-01-02T03:04:05",
+ absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2, 3, 4, 5)));
+ EXPECT_EQ("2015-01-02T03:04:00",
+ absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2, 3, 4)));
+ EXPECT_EQ("2015-01-02T03:00:00",
+ absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2, 3)));
+ EXPECT_EQ("2015-01-02T00:00:00",
+ absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2)));
+ EXPECT_EQ("2015-01-01T00:00:00",
+ absl::FormatCivilTime(absl::CivilSecond(2015, 1)));
+ EXPECT_EQ("2015-01-01T00:00:00",
+ absl::FormatCivilTime(absl::CivilSecond(2015)));
+
+ EXPECT_EQ("2015-01-02T03:04",
+ absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2, 3, 4, 5)));
+ EXPECT_EQ("2015-01-02T03:04",
+ absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2, 3, 4)));
+ EXPECT_EQ("2015-01-02T03:00",
+ absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2, 3)));
+ EXPECT_EQ("2015-01-02T00:00",
+ absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2)));
+ EXPECT_EQ("2015-01-01T00:00",
+ absl::FormatCivilTime(absl::CivilMinute(2015, 1)));
+ EXPECT_EQ("2015-01-01T00:00",
+ absl::FormatCivilTime(absl::CivilMinute(2015)));
+
+ EXPECT_EQ("2015-01-02T03",
+ absl::FormatCivilTime(absl::CivilHour(2015, 1, 2, 3, 4, 5)));
+ EXPECT_EQ("2015-01-02T03",
+ absl::FormatCivilTime(absl::CivilHour(2015, 1, 2, 3, 4)));
+ EXPECT_EQ("2015-01-02T03",
+ absl::FormatCivilTime(absl::CivilHour(2015, 1, 2, 3)));
+ EXPECT_EQ("2015-01-02T00",
+ absl::FormatCivilTime(absl::CivilHour(2015, 1, 2)));
+ EXPECT_EQ("2015-01-01T00",
+ absl::FormatCivilTime(absl::CivilHour(2015, 1)));
+ EXPECT_EQ("2015-01-01T00",
+ absl::FormatCivilTime(absl::CivilHour(2015)));
+
+ EXPECT_EQ("2015-01-02",
+ absl::FormatCivilTime(absl::CivilDay(2015, 1, 2, 3, 4, 5)));
+ EXPECT_EQ("2015-01-02",
+ absl::FormatCivilTime(absl::CivilDay(2015, 1, 2, 3, 4)));
+ EXPECT_EQ("2015-01-02",
+ absl::FormatCivilTime(absl::CivilDay(2015, 1, 2, 3)));
+ EXPECT_EQ("2015-01-02",
+ absl::FormatCivilTime(absl::CivilDay(2015, 1, 2)));
+ EXPECT_EQ("2015-01-01",
+ absl::FormatCivilTime(absl::CivilDay(2015, 1)));
+ EXPECT_EQ("2015-01-01",
+ absl::FormatCivilTime(absl::CivilDay(2015)));
+
+ EXPECT_EQ("2015-01",
+ absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2, 3, 4, 5)));
+ EXPECT_EQ("2015-01",
+ absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2, 3, 4)));
+ EXPECT_EQ("2015-01",
+ absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2, 3)));
+ EXPECT_EQ("2015-01",
+ absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2)));
+ EXPECT_EQ("2015-01",
+ absl::FormatCivilTime(absl::CivilMonth(2015, 1)));
+ EXPECT_EQ("2015-01",
+ absl::FormatCivilTime(absl::CivilMonth(2015)));
+
+ EXPECT_EQ("2015",
+ absl::FormatCivilTime(absl::CivilYear(2015, 1, 2, 3, 4, 5)));
+ EXPECT_EQ("2015",
+ absl::FormatCivilTime(absl::CivilYear(2015, 1, 2, 3, 4)));
+ EXPECT_EQ("2015",
+ absl::FormatCivilTime(absl::CivilYear(2015, 1, 2, 3)));
+ EXPECT_EQ("2015",
+ absl::FormatCivilTime(absl::CivilYear(2015, 1, 2)));
+ EXPECT_EQ("2015",
+ absl::FormatCivilTime(absl::CivilYear(2015, 1)));
+ EXPECT_EQ("2015",
+ absl::FormatCivilTime(absl::CivilYear(2015)));
+}
+
+TEST(CivilTime, FieldsConstructionLimits) {
+ const int kIntMax = std::numeric_limits<int>::max();
+ EXPECT_EQ("2038-01-19T03:14:07",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, 1, 0, 0, kIntMax)));
+ EXPECT_EQ("6121-02-11T05:21:07",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, 1, 0, kIntMax, kIntMax)));
+ EXPECT_EQ("251104-11-20T12:21:07",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, 1, kIntMax, kIntMax, kIntMax)));
+ EXPECT_EQ("6130715-05-30T12:21:07",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, kIntMax, kIntMax, kIntMax, kIntMax)));
+ EXPECT_EQ("185087685-11-26T12:21:07",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, kIntMax, kIntMax, kIntMax, kIntMax, kIntMax)));
+
+ const int kIntMin = std::numeric_limits<int>::min();
+ EXPECT_EQ("1901-12-13T20:45:52",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, 1, 0, 0, kIntMin)));
+ EXPECT_EQ("-2182-11-20T18:37:52",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, 1, 0, kIntMin, kIntMin)));
+ EXPECT_EQ("-247165-02-11T10:37:52",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, 1, kIntMin, kIntMin, kIntMin)));
+ EXPECT_EQ("-6126776-08-01T10:37:52",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, 1, kIntMin, kIntMin, kIntMin, kIntMin)));
+ EXPECT_EQ("-185083747-10-31T10:37:52",
+ absl::FormatCivilTime(absl::CivilSecond(
+ 1970, kIntMin, kIntMin, kIntMin, kIntMin, kIntMin)));
+}
+
+TEST(CivilTime, RangeLimits) {
+ const absl::civil_year_t kYearMax =
+ std::numeric_limits<absl::civil_year_t>::max();
+ EXPECT_EQ(absl::CivilYear(kYearMax),
+ absl::CivilYear::max());
+ EXPECT_EQ(absl::CivilMonth(kYearMax, 12),
+ absl::CivilMonth::max());
+ EXPECT_EQ(absl::CivilDay(kYearMax, 12, 31),
+ absl::CivilDay::max());
+ EXPECT_EQ(absl::CivilHour(kYearMax, 12, 31, 23),
+ absl::CivilHour::max());
+ EXPECT_EQ(absl::CivilMinute(kYearMax, 12, 31, 23, 59),
+ absl::CivilMinute::max());
+ EXPECT_EQ(absl::CivilSecond(kYearMax, 12, 31, 23, 59, 59),
+ absl::CivilSecond::max());
+
+ const absl::civil_year_t kYearMin =
+ std::numeric_limits<absl::civil_year_t>::min();
+ EXPECT_EQ(absl::CivilYear(kYearMin),
+ absl::CivilYear::min());
+ EXPECT_EQ(absl::CivilMonth(kYearMin, 1),
+ absl::CivilMonth::min());
+ EXPECT_EQ(absl::CivilDay(kYearMin, 1, 1),
+ absl::CivilDay::min());
+ EXPECT_EQ(absl::CivilHour(kYearMin, 1, 1, 0),
+ absl::CivilHour::min());
+ EXPECT_EQ(absl::CivilMinute(kYearMin, 1, 1, 0, 0),
+ absl::CivilMinute::min());
+ EXPECT_EQ(absl::CivilSecond(kYearMin, 1, 1, 0, 0, 0),
+ absl::CivilSecond::min());
+}
+
+TEST(CivilTime, ImplicitCrossAlignment) {
+ absl::CivilYear year(2015);
+ absl::CivilMonth month = year;
+ absl::CivilDay day = month;
+ absl::CivilHour hour = day;
+ absl::CivilMinute minute = hour;
+ absl::CivilSecond second = minute;
+
+ second = year;
+ EXPECT_EQ(second, year);
+ second = month;
+ EXPECT_EQ(second, month);
+ second = day;
+ EXPECT_EQ(second, day);
+ second = hour;
+ EXPECT_EQ(second, hour);
+ second = minute;
+ EXPECT_EQ(second, minute);
+
+ minute = year;
+ EXPECT_EQ(minute, year);
+ minute = month;
+ EXPECT_EQ(minute, month);
+ minute = day;
+ EXPECT_EQ(minute, day);
+ minute = hour;
+ EXPECT_EQ(minute, hour);
+
+ hour = year;
+ EXPECT_EQ(hour, year);
+ hour = month;
+ EXPECT_EQ(hour, month);
+ hour = day;
+ EXPECT_EQ(hour, day);
+
+ day = year;
+ EXPECT_EQ(day, year);
+ day = month;
+ EXPECT_EQ(day, month);
+
+ month = year;
+ EXPECT_EQ(month, year);
+
+ // Ensures unsafe conversions are not allowed.
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilSecond, absl::CivilMinute>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilSecond, absl::CivilHour>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilSecond, absl::CivilDay>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilSecond, absl::CivilMonth>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilSecond, absl::CivilYear>::value));
+
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilMinute, absl::CivilHour>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilMinute, absl::CivilDay>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilMinute, absl::CivilMonth>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilMinute, absl::CivilYear>::value));
+
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilHour, absl::CivilDay>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilHour, absl::CivilMonth>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilHour, absl::CivilYear>::value));
+
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilDay, absl::CivilMonth>::value));
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilDay, absl::CivilYear>::value));
+
+ EXPECT_FALSE(
+ (std::is_convertible<absl::CivilMonth, absl::CivilYear>::value));
+}
+
+TEST(CivilTime, ExplicitCrossAlignment) {
+ //
+ // Assign from smaller units -> larger units
+ //
+
+ absl::CivilSecond second(2015, 1, 2, 3, 4, 5);
+ EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second));
+
+ absl::CivilMinute minute(second);
+ EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute));
+
+ absl::CivilHour hour(minute);
+ EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour));
+
+ absl::CivilDay day(hour);
+ EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day));
+
+ absl::CivilMonth month(day);
+ EXPECT_EQ("2015-01", absl::FormatCivilTime(month));
+
+ absl::CivilYear year(month);
+ EXPECT_EQ("2015", absl::FormatCivilTime(year));
+
+ //
+ // Now assign from larger units -> smaller units
+ //
+
+ month = absl::CivilMonth(year);
+ EXPECT_EQ("2015-01", absl::FormatCivilTime(month));
+
+ day = absl::CivilDay(month);
+ EXPECT_EQ("2015-01-01", absl::FormatCivilTime(day));
+
+ hour = absl::CivilHour(day);
+ EXPECT_EQ("2015-01-01T00", absl::FormatCivilTime(hour));
+
+ minute = absl::CivilMinute(hour);
+ EXPECT_EQ("2015-01-01T00:00", absl::FormatCivilTime(minute));
+
+ second = absl::CivilSecond(minute);
+ EXPECT_EQ("2015-01-01T00:00:00", absl::FormatCivilTime(second));
+}
+
+// Metafunction to test whether difference is allowed between two types.
+template <typename T1, typename T2>
+struct HasDiff {
+ template <typename U1, typename U2>
+ static std::false_type test(...);
+ template <typename U1, typename U2>
+ static std::true_type test(decltype(std::declval<U1>() - std::declval<U2>()));
+ static constexpr bool value = decltype(test<T1, T2>(0))::value;
+};
+
+TEST(CivilTime, DisallowCrossAlignedDifference) {
+ // Difference is allowed between types with the same alignment.
+ static_assert(HasDiff<absl::CivilSecond, absl::CivilSecond>::value, "");
+ static_assert(HasDiff<absl::CivilMinute, absl::CivilMinute>::value, "");
+ static_assert(HasDiff<absl::CivilHour, absl::CivilHour>::value, "");
+ static_assert(HasDiff<absl::CivilDay, absl::CivilDay>::value, "");
+ static_assert(HasDiff<absl::CivilMonth, absl::CivilMonth>::value, "");
+ static_assert(HasDiff<absl::CivilYear, absl::CivilYear>::value, "");
+
+ // Difference is disallowed between types with different alignments.
+ static_assert(!HasDiff<absl::CivilSecond, absl::CivilMinute>::value, "");
+ static_assert(!HasDiff<absl::CivilSecond, absl::CivilHour>::value, "");
+ static_assert(!HasDiff<absl::CivilSecond, absl::CivilDay>::value, "");
+ static_assert(!HasDiff<absl::CivilSecond, absl::CivilMonth>::value, "");
+ static_assert(!HasDiff<absl::CivilSecond, absl::CivilYear>::value, "");
+
+ static_assert(!HasDiff<absl::CivilMinute, absl::CivilHour>::value, "");
+ static_assert(!HasDiff<absl::CivilMinute, absl::CivilDay>::value, "");
+ static_assert(!HasDiff<absl::CivilMinute, absl::CivilMonth>::value, "");
+ static_assert(!HasDiff<absl::CivilMinute, absl::CivilYear>::value, "");
+
+ static_assert(!HasDiff<absl::CivilHour, absl::CivilDay>::value, "");
+ static_assert(!HasDiff<absl::CivilHour, absl::CivilMonth>::value, "");
+ static_assert(!HasDiff<absl::CivilHour, absl::CivilYear>::value, "");
+
+ static_assert(!HasDiff<absl::CivilDay, absl::CivilMonth>::value, "");
+ static_assert(!HasDiff<absl::CivilDay, absl::CivilYear>::value, "");
+
+ static_assert(!HasDiff<absl::CivilMonth, absl::CivilYear>::value, "");
+}
+
+TEST(CivilTime, ValueSemantics) {
+ const absl::CivilHour a(2015, 1, 2, 3);
+ const absl::CivilHour b = a;
+ const absl::CivilHour c(b);
+ absl::CivilHour d;
+ d = c;
+ EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(d));
+}
+
+TEST(CivilTime, Relational) {
+ // Tests that the alignment unit is ignored in comparison.
+ const absl::CivilYear year(2014);
+ const absl::CivilMonth month(year);
+ EXPECT_EQ(year, month);
+
+#define TEST_RELATIONAL(OLDER, YOUNGER) \
+ do { \
+ EXPECT_FALSE(OLDER < OLDER); \
+ EXPECT_FALSE(OLDER > OLDER); \
+ EXPECT_TRUE(OLDER >= OLDER); \
+ EXPECT_TRUE(OLDER <= OLDER); \
+ EXPECT_FALSE(YOUNGER < YOUNGER); \
+ EXPECT_FALSE(YOUNGER > YOUNGER); \
+ EXPECT_TRUE(YOUNGER >= YOUNGER); \
+ EXPECT_TRUE(YOUNGER <= YOUNGER); \
+ EXPECT_EQ(OLDER, OLDER); \
+ EXPECT_NE(OLDER, YOUNGER); \
+ EXPECT_LT(OLDER, YOUNGER); \
+ EXPECT_LE(OLDER, YOUNGER); \
+ EXPECT_GT(YOUNGER, OLDER); \
+ EXPECT_GE(YOUNGER, OLDER); \
+ } while (0)
+
+ // Alignment is ignored in comparison (verified above), so CivilSecond is
+ // used to test comparison in all field positions.
+ TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0),
+ absl::CivilSecond(2015, 1, 1, 0, 0, 0));
+ TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0),
+ absl::CivilSecond(2014, 2, 1, 0, 0, 0));
+ TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0),
+ absl::CivilSecond(2014, 1, 2, 0, 0, 0));
+ TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0),
+ absl::CivilSecond(2014, 1, 1, 1, 0, 0));
+ TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 1, 0, 0),
+ absl::CivilSecond(2014, 1, 1, 1, 1, 0));
+ TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 1, 1, 0),
+ absl::CivilSecond(2014, 1, 1, 1, 1, 1));
+
+ // Tests the relational operators of two different civil-time types.
+ TEST_RELATIONAL(absl::CivilDay(2014, 1, 1),
+ absl::CivilMinute(2014, 1, 1, 1, 1));
+ TEST_RELATIONAL(absl::CivilDay(2014, 1, 1),
+ absl::CivilMonth(2014, 2));
+
+#undef TEST_RELATIONAL
+}
+
+TEST(CivilTime, Arithmetic) {
+ absl::CivilSecond second(2015, 1, 2, 3, 4, 5);
+ EXPECT_EQ("2015-01-02T03:04:06", absl::FormatCivilTime(second += 1));
+ EXPECT_EQ("2015-01-02T03:04:07", absl::FormatCivilTime(second + 1));
+ EXPECT_EQ("2015-01-02T03:04:08", absl::FormatCivilTime(2 + second));
+ EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second - 1));
+ EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second -= 1));
+ EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second++));
+ EXPECT_EQ("2015-01-02T03:04:07", absl::FormatCivilTime(++second));
+ EXPECT_EQ("2015-01-02T03:04:07", absl::FormatCivilTime(second--));
+ EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(--second));
+
+ absl::CivilMinute minute(2015, 1, 2, 3, 4);
+ EXPECT_EQ("2015-01-02T03:05", absl::FormatCivilTime(minute += 1));
+ EXPECT_EQ("2015-01-02T03:06", absl::FormatCivilTime(minute + 1));
+ EXPECT_EQ("2015-01-02T03:07", absl::FormatCivilTime(2 + minute));
+ EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute - 1));
+ EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute -= 1));
+ EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute++));
+ EXPECT_EQ("2015-01-02T03:06", absl::FormatCivilTime(++minute));
+ EXPECT_EQ("2015-01-02T03:06", absl::FormatCivilTime(minute--));
+ EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(--minute));
+
+ absl::CivilHour hour(2015, 1, 2, 3);
+ EXPECT_EQ("2015-01-02T04", absl::FormatCivilTime(hour += 1));
+ EXPECT_EQ("2015-01-02T05", absl::FormatCivilTime(hour + 1));
+ EXPECT_EQ("2015-01-02T06", absl::FormatCivilTime(2 + hour));
+ EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour - 1));
+ EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour -= 1));
+ EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour++));
+ EXPECT_EQ("2015-01-02T05", absl::FormatCivilTime(++hour));
+ EXPECT_EQ("2015-01-02T05", absl::FormatCivilTime(hour--));
+ EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(--hour));
+
+ absl::CivilDay day(2015, 1, 2);
+ EXPECT_EQ("2015-01-03", absl::FormatCivilTime(day += 1));
+ EXPECT_EQ("2015-01-04", absl::FormatCivilTime(day + 1));
+ EXPECT_EQ("2015-01-05", absl::FormatCivilTime(2 + day));
+ EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day - 1));
+ EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day -= 1));
+ EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day++));
+ EXPECT_EQ("2015-01-04", absl::FormatCivilTime(++day));
+ EXPECT_EQ("2015-01-04", absl::FormatCivilTime(day--));
+ EXPECT_EQ("2015-01-02", absl::FormatCivilTime(--day));
+
+ absl::CivilMonth month(2015, 1);
+ EXPECT_EQ("2015-02", absl::FormatCivilTime(month += 1));
+ EXPECT_EQ("2015-03", absl::FormatCivilTime(month + 1));
+ EXPECT_EQ("2015-04", absl::FormatCivilTime(2 + month));
+ EXPECT_EQ("2015-01", absl::FormatCivilTime(month - 1));
+ EXPECT_EQ("2015-01", absl::FormatCivilTime(month -= 1));
+ EXPECT_EQ("2015-01", absl::FormatCivilTime(month++));
+ EXPECT_EQ("2015-03", absl::FormatCivilTime(++month));
+ EXPECT_EQ("2015-03", absl::FormatCivilTime(month--));
+ EXPECT_EQ("2015-01", absl::FormatCivilTime(--month));
+
+ absl::CivilYear year(2015);
+ EXPECT_EQ("2016", absl::FormatCivilTime(year += 1));
+ EXPECT_EQ("2017", absl::FormatCivilTime(year + 1));
+ EXPECT_EQ("2018", absl::FormatCivilTime(2 + year));
+ EXPECT_EQ("2015", absl::FormatCivilTime(year - 1));
+ EXPECT_EQ("2015", absl::FormatCivilTime(year -= 1));
+ EXPECT_EQ("2015", absl::FormatCivilTime(year++));
+ EXPECT_EQ("2017", absl::FormatCivilTime(++year));
+ EXPECT_EQ("2017", absl::FormatCivilTime(year--));
+ EXPECT_EQ("2015", absl::FormatCivilTime(--year));
+}
+
+TEST(CivilTime, ArithmeticLimits) {
+ const int kIntMax = std::numeric_limits<int>::max();
+ const int kIntMin = std::numeric_limits<int>::min();
+
+ absl::CivilSecond second(1970, 1, 1, 0, 0, 0);
+ second += kIntMax;
+ EXPECT_EQ("2038-01-19T03:14:07", absl::FormatCivilTime(second));
+ second -= kIntMax;
+ EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(second));
+ second += kIntMin;
+ EXPECT_EQ("1901-12-13T20:45:52", absl::FormatCivilTime(second));
+ second -= kIntMin;
+ EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(second));
+
+ absl::CivilMinute minute(1970, 1, 1, 0, 0);
+ minute += kIntMax;
+ EXPECT_EQ("6053-01-23T02:07", absl::FormatCivilTime(minute));
+ minute -= kIntMax;
+ EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(minute));
+ minute += kIntMin;
+ EXPECT_EQ("-2114-12-08T21:52", absl::FormatCivilTime(minute));
+ minute -= kIntMin;
+ EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(minute));
+
+ absl::CivilHour hour(1970, 1, 1, 0);
+ hour += kIntMax;
+ EXPECT_EQ("246953-10-09T07", absl::FormatCivilTime(hour));
+ hour -= kIntMax;
+ EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hour));
+ hour += kIntMin;
+ EXPECT_EQ("-243014-03-24T16", absl::FormatCivilTime(hour));
+ hour -= kIntMin;
+ EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hour));
+
+ absl::CivilDay day(1970, 1, 1);
+ day += kIntMax;
+ EXPECT_EQ("5881580-07-11", absl::FormatCivilTime(day));
+ day -= kIntMax;
+ EXPECT_EQ("1970-01-01", absl::FormatCivilTime(day));
+ day += kIntMin;
+ EXPECT_EQ("-5877641-06-23", absl::FormatCivilTime(day));
+ day -= kIntMin;
+ EXPECT_EQ("1970-01-01", absl::FormatCivilTime(day));
+
+ absl::CivilMonth month(1970, 1);
+ month += kIntMax;
+ EXPECT_EQ("178958940-08", absl::FormatCivilTime(month));
+ month -= kIntMax;
+ EXPECT_EQ("1970-01", absl::FormatCivilTime(month));
+ month += kIntMin;
+ EXPECT_EQ("-178955001-05", absl::FormatCivilTime(month));
+ month -= kIntMin;
+ EXPECT_EQ("1970-01", absl::FormatCivilTime(month));
+
+ absl::CivilYear year(0);
+ year += kIntMax;
+ EXPECT_EQ("2147483647", absl::FormatCivilTime(year));
+ year -= kIntMax;
+ EXPECT_EQ("0", absl::FormatCivilTime(year));
+ year += kIntMin;
+ EXPECT_EQ("-2147483648", absl::FormatCivilTime(year));
+ year -= kIntMin;
+ EXPECT_EQ("0", absl::FormatCivilTime(year));
+}
+
+TEST(CivilTime, Difference) {
+ absl::CivilSecond second(2015, 1, 2, 3, 4, 5);
+ EXPECT_EQ(0, second - second);
+ EXPECT_EQ(10, (second + 10) - second);
+ EXPECT_EQ(-10, (second - 10) - second);
+
+ absl::CivilMinute minute(2015, 1, 2, 3, 4);
+ EXPECT_EQ(0, minute - minute);
+ EXPECT_EQ(10, (minute + 10) - minute);
+ EXPECT_EQ(-10, (minute - 10) - minute);
+
+ absl::CivilHour hour(2015, 1, 2, 3);
+ EXPECT_EQ(0, hour - hour);
+ EXPECT_EQ(10, (hour + 10) - hour);
+ EXPECT_EQ(-10, (hour - 10) - hour);
+
+ absl::CivilDay day(2015, 1, 2);
+ EXPECT_EQ(0, day - day);
+ EXPECT_EQ(10, (day + 10) - day);
+ EXPECT_EQ(-10, (day - 10) - day);
+
+ absl::CivilMonth month(2015, 1);
+ EXPECT_EQ(0, month - month);
+ EXPECT_EQ(10, (month + 10) - month);
+ EXPECT_EQ(-10, (month - 10) - month);
+
+ absl::CivilYear year(2015);
+ EXPECT_EQ(0, year - year);
+ EXPECT_EQ(10, (year + 10) - year);
+ EXPECT_EQ(-10, (year - 10) - year);
+}
+
+TEST(CivilTime, DifferenceLimits) {
+ const absl::civil_diff_t kDiffMax =
+ std::numeric_limits<absl::civil_diff_t>::max();
+ const absl::civil_diff_t kDiffMin =
+ std::numeric_limits<absl::civil_diff_t>::min();
+
+ // Check day arithmetic at the end of the year range.
+ const absl::CivilDay max_day(kDiffMax, 12, 31);
+ EXPECT_EQ(1, max_day - (max_day - 1));
+ EXPECT_EQ(-1, (max_day - 1) - max_day);
+
+ // Check day arithmetic at the start of the year range.
+ const absl::CivilDay min_day(kDiffMin, 1, 1);
+ EXPECT_EQ(1, (min_day + 1) - min_day);
+ EXPECT_EQ(-1, min_day - (min_day + 1));
+
+ // Check the limits of the return value.
+ const absl::CivilDay d1(1970, 1, 1);
+ const absl::CivilDay d2(25252734927768524, 7, 27);
+ EXPECT_EQ(kDiffMax, d2 - d1);
+ EXPECT_EQ(kDiffMin, d1 - (d2 + 1));
+}
+
+TEST(CivilTime, Properties) {
+ absl::CivilSecond ss(2015, 2, 3, 4, 5, 6);
+ EXPECT_EQ(2015, ss.year());
+ EXPECT_EQ(2, ss.month());
+ EXPECT_EQ(3, ss.day());
+ EXPECT_EQ(4, ss.hour());
+ EXPECT_EQ(5, ss.minute());
+ EXPECT_EQ(6, ss.second());
+
+ absl::CivilMinute mm(2015, 2, 3, 4, 5, 6);
+ EXPECT_EQ(2015, mm.year());
+ EXPECT_EQ(2, mm.month());
+ EXPECT_EQ(3, mm.day());
+ EXPECT_EQ(4, mm.hour());
+ EXPECT_EQ(5, mm.minute());
+ EXPECT_EQ(0, mm.second());
+
+ absl::CivilHour hh(2015, 2, 3, 4, 5, 6);
+ EXPECT_EQ(2015, hh.year());
+ EXPECT_EQ(2, hh.month());
+ EXPECT_EQ(3, hh.day());
+ EXPECT_EQ(4, hh.hour());
+ EXPECT_EQ(0, hh.minute());
+ EXPECT_EQ(0, hh.second());
+
+ absl::CivilDay d(2015, 2, 3, 4, 5, 6);
+ EXPECT_EQ(2015, d.year());
+ EXPECT_EQ(2, d.month());
+ EXPECT_EQ(3, d.day());
+ EXPECT_EQ(0, d.hour());
+ EXPECT_EQ(0, d.minute());
+ EXPECT_EQ(0, d.second());
+
+ absl::CivilMonth m(2015, 2, 3, 4, 5, 6);
+ EXPECT_EQ(2015, m.year());
+ EXPECT_EQ(2, m.month());
+ EXPECT_EQ(1, m.day());
+ EXPECT_EQ(0, m.hour());
+ EXPECT_EQ(0, m.minute());
+ EXPECT_EQ(0, m.second());
+
+ absl::CivilYear y(2015, 2, 3, 4, 5, 6);
+ EXPECT_EQ(2015, y.year());
+ EXPECT_EQ(1, y.month());
+ EXPECT_EQ(1, y.day());
+ EXPECT_EQ(0, y.hour());
+ EXPECT_EQ(0, y.minute());
+ EXPECT_EQ(0, y.second());
+}
+
+TEST(CivilTime, Format) {
+ absl::CivilSecond ss;
+ EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(ss));
+
+ absl::CivilMinute mm;
+ EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(mm));
+
+ absl::CivilHour hh;
+ EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hh));
+
+ absl::CivilDay d;
+ EXPECT_EQ("1970-01-01", absl::FormatCivilTime(d));
+
+ absl::CivilMonth m;
+ EXPECT_EQ("1970-01", absl::FormatCivilTime(m));
+
+ absl::CivilYear y;
+ EXPECT_EQ("1970", absl::FormatCivilTime(y));
+}
+
+TEST(CivilTime, FormatAndParseLenient) {
+ absl::CivilSecond ss;
+ EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(ss));
+
+ absl::CivilMinute mm;
+ EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(mm));
+
+ absl::CivilHour hh;
+ EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hh));
+
+ absl::CivilDay d;
+ EXPECT_EQ("1970-01-01", absl::FormatCivilTime(d));
+
+ absl::CivilMonth m;
+ EXPECT_EQ("1970-01", absl::FormatCivilTime(m));
+
+ absl::CivilYear y;
+ EXPECT_EQ("1970", absl::FormatCivilTime(y));
+}
+
+TEST(CivilTime, OutputStream) {
+ absl::CivilSecond cs(2016, 2, 3, 4, 5, 6);
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::CivilYear(cs);
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..2016.................X..", ss.str());
+ }
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::CivilMonth(cs);
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..2016-02..............X..", ss.str());
+ }
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::CivilDay(cs);
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..2016-02-03...........X..", ss.str());
+ }
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::CivilHour(cs);
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..2016-02-03T04........X..", ss.str());
+ }
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::CivilMinute(cs);
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..2016-02-03T04:05.....X..", ss.str());
+ }
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::CivilSecond(cs);
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..2016-02-03T04:05:06..X..", ss.str());
+ }
+ {
+ std::stringstream ss;
+ ss << std::left << std::setfill('.');
+ ss << std::setw(3) << 'X';
+ ss << std::setw(21) << absl::Weekday::wednesday;
+ ss << std::setw(3) << 'X';
+ EXPECT_EQ("X..Wednesday............X..", ss.str());
+ }
+}
+
+TEST(CivilTime, Weekday) {
+ absl::CivilDay d(1970, 1, 1);
+ EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(d)) << d;
+
+ // We used to get this wrong for years < -30.
+ d = absl::CivilDay(-31, 12, 24);
+ EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(d)) << d;
+}
+
+TEST(CivilTime, NextPrevWeekday) {
+ // Jan 1, 1970 was a Thursday.
+ const absl::CivilDay thursday(1970, 1, 1);
+
+ // Thursday -> Thursday
+ absl::CivilDay d = absl::NextWeekday(thursday, absl::Weekday::thursday);
+ EXPECT_EQ(7, d - thursday) << d;
+ EXPECT_EQ(d - 14, absl::PrevWeekday(thursday, absl::Weekday::thursday));
+
+ // Thursday -> Friday
+ d = absl::NextWeekday(thursday, absl::Weekday::friday);
+ EXPECT_EQ(1, d - thursday) << d;
+ EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::friday));
+
+ // Thursday -> Saturday
+ d = absl::NextWeekday(thursday, absl::Weekday::saturday);
+ EXPECT_EQ(2, d - thursday) << d;
+ EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::saturday));
+
+ // Thursday -> Sunday
+ d = absl::NextWeekday(thursday, absl::Weekday::sunday);
+ EXPECT_EQ(3, d - thursday) << d;
+ EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::sunday));
+
+ // Thursday -> Monday
+ d = absl::NextWeekday(thursday, absl::Weekday::monday);
+ EXPECT_EQ(4, d - thursday) << d;
+ EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::monday));
+
+ // Thursday -> Tuesday
+ d = absl::NextWeekday(thursday, absl::Weekday::tuesday);
+ EXPECT_EQ(5, d - thursday) << d;
+ EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::tuesday));
+
+ // Thursday -> Wednesday
+ d = absl::NextWeekday(thursday, absl::Weekday::wednesday);
+ EXPECT_EQ(6, d - thursday) << d;
+ EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::wednesday));
+}
+
+// NOTE: Run this with --copt=-ftrapv to detect overflow problems.
+TEST(CivilTime, DifferenceWithHugeYear) {
+ absl::CivilDay d1(9223372036854775807, 1, 1);
+ absl::CivilDay d2(9223372036854775807, 12, 31);
+ EXPECT_EQ(364, d2 - d1);
+
+ d1 = absl::CivilDay(-9223372036854775807 - 1, 1, 1);
+ d2 = absl::CivilDay(-9223372036854775807 - 1, 12, 31);
+ EXPECT_EQ(365, d2 - d1);
+
+ // Check the limits of the return value at the end of the year range.
+ d1 = absl::CivilDay(9223372036854775807, 1, 1);
+ d2 = absl::CivilDay(9198119301927009252, 6, 6);
+ EXPECT_EQ(9223372036854775807, d1 - d2);
+ d2 = d2 - 1;
+ EXPECT_EQ(-9223372036854775807 - 1, d2 - d1);
+
+ // Check the limits of the return value at the start of the year range.
+ d1 = absl::CivilDay(-9223372036854775807 - 1, 1, 1);
+ d2 = absl::CivilDay(-9198119301927009254, 7, 28);
+ EXPECT_EQ(9223372036854775807, d2 - d1);
+ d2 = d2 + 1;
+ EXPECT_EQ(-9223372036854775807 - 1, d1 - d2);
+
+ // Check the limits of the return value from either side of year 0.
+ d1 = absl::CivilDay(-12626367463883278, 9, 3);
+ d2 = absl::CivilDay(12626367463883277, 3, 28);
+ EXPECT_EQ(9223372036854775807, d2 - d1);
+ d2 = d2 + 1;
+ EXPECT_EQ(-9223372036854775807 - 1, d1 - d2);
+}
+
+// NOTE: Run this with --copt=-ftrapv to detect overflow problems.
+TEST(CivilTime, DifferenceNoIntermediateOverflow) {
+ // The difference up to the minute field would be below the minimum
+ // int64_t, but the 52 extra seconds brings us back to the minimum.
+ absl::CivilSecond s1(-292277022657, 1, 27, 8, 29 - 1, 52);
+ absl::CivilSecond s2(1970, 1, 1, 0, 0 - 1, 0);
+ EXPECT_EQ(-9223372036854775807 - 1, s1 - s2);
+
+ // The difference up to the minute field would be above the maximum
+ // int64_t, but the -53 extra seconds brings us back to the maximum.
+ s1 = absl::CivilSecond(292277026596, 12, 4, 15, 30, 7 - 7);
+ s2 = absl::CivilSecond(1970, 1, 1, 0, 0, 0 - 7);
+ EXPECT_EQ(9223372036854775807, s1 - s2);
+}
+
+TEST(CivilTime, NormalizeSimpleOverflow) {
+ absl::CivilSecond cs;
+ cs = absl::CivilSecond(2013, 11, 15, 16, 32, 59 + 1);
+ EXPECT_EQ("2013-11-15T16:33:00", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16, 59 + 1, 14);
+ EXPECT_EQ("2013-11-15T17:00:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 23 + 1, 32, 14);
+ EXPECT_EQ("2013-11-16T00:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 30 + 1, 16, 32, 14);
+ EXPECT_EQ("2013-12-01T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 12 + 1, 15, 16, 32, 14);
+ EXPECT_EQ("2014-01-15T16:32:14", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeSimpleUnderflow) {
+ absl::CivilSecond cs;
+ cs = absl::CivilSecond(2013, 11, 15, 16, 32, 0 - 1);
+ EXPECT_EQ("2013-11-15T16:31:59", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16, 0 - 1, 14);
+ EXPECT_EQ("2013-11-15T15:59:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 0 - 1, 32, 14);
+ EXPECT_EQ("2013-11-14T23:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 1 - 1, 16, 32, 14);
+ EXPECT_EQ("2013-10-31T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 1 - 1, 15, 16, 32, 14);
+ EXPECT_EQ("2012-12-15T16:32:14", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeMultipleOverflow) {
+ absl::CivilSecond cs(2013, 12, 31, 23, 59, 59 + 1);
+ EXPECT_EQ("2014-01-01T00:00:00", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeMultipleUnderflow) {
+ absl::CivilSecond cs(2014, 1, 1, 0, 0, 0 - 1);
+ EXPECT_EQ("2013-12-31T23:59:59", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeOverflowLimits) {
+ absl::CivilSecond cs;
+
+ const int kintmax = std::numeric_limits<int>::max();
+ cs = absl::CivilSecond(0, kintmax, kintmax, kintmax, kintmax, kintmax);
+ EXPECT_EQ("185085715-11-27T12:21:07", absl::FormatCivilTime(cs));
+
+ const int kintmin = std::numeric_limits<int>::min();
+ cs = absl::CivilSecond(0, kintmin, kintmin, kintmin, kintmin, kintmin);
+ EXPECT_EQ("-185085717-10-31T10:37:52", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeComplexOverflow) {
+ absl::CivilSecond cs;
+ cs = absl::CivilSecond(2013, 11, 15, 16, 32, 14 + 123456789);
+ EXPECT_EQ("2017-10-14T14:05:23", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16, 32 + 1234567, 14);
+ EXPECT_EQ("2016-03-22T00:39:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16 + 123456, 32, 14);
+ EXPECT_EQ("2027-12-16T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15 + 1234, 16, 32, 14);
+ EXPECT_EQ("2017-04-02T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11 + 123, 15, 16, 32, 14);
+ EXPECT_EQ("2024-02-15T16:32:14", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeComplexUnderflow) {
+ absl::CivilSecond cs;
+ cs = absl::CivilSecond(1999, 3, 0, 0, 0, 0); // year 400
+ EXPECT_EQ("1999-02-28T00:00:00", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16, 32, 14 - 123456789);
+ EXPECT_EQ("2009-12-17T18:59:05", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16, 32 - 1234567, 14);
+ EXPECT_EQ("2011-07-12T08:25:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15, 16 - 123456, 32, 14);
+ EXPECT_EQ("1999-10-16T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11, 15 - 1234, 16, 32, 14);
+ EXPECT_EQ("2010-06-30T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11 - 123, 15, 16, 32, 14);
+ EXPECT_EQ("2003-08-15T16:32:14", absl::FormatCivilTime(cs));
+}
+
+TEST(CivilTime, NormalizeMishmash) {
+ absl::CivilSecond cs;
+ cs = absl::CivilSecond(2013, 11 - 123, 15 + 1234, 16 - 123456, 32 + 1234567,
+ 14 - 123456789);
+ EXPECT_EQ("1991-05-09T03:06:05", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11 + 123, 15 - 1234, 16 + 123456, 32 - 1234567,
+ 14 + 123456789);
+ EXPECT_EQ("2036-05-24T05:58:23", absl::FormatCivilTime(cs));
+
+ cs = absl::CivilSecond(2013, 11, -146097 + 1, 16, 32, 14);
+ EXPECT_EQ("1613-11-01T16:32:14", absl::FormatCivilTime(cs));
+ cs = absl::CivilSecond(2013, 11 + 400 * 12, -146097 + 1, 16, 32, 14);
+ EXPECT_EQ("2013-11-01T16:32:14", absl::FormatCivilTime(cs));
+}
+
+// Convert all the days from 1970-1-1 to 1970-1-146097 (aka 2369-12-31)
+// and check that they normalize to the expected time. 146097 days span
+// the 400-year Gregorian cycle used during normalization.
+TEST(CivilTime, NormalizeAllTheDays) {
+ absl::CivilDay expected(1970, 1, 1);
+ for (int day = 1; day <= 146097; ++day) {
+ absl::CivilSecond cs(1970, 1, day, 0, 0, 0);
+ EXPECT_EQ(expected, cs);
+ ++expected;
+ }
+}
+
+TEST(CivilTime, NormalizeWithHugeYear) {
+ absl::CivilMonth c(9223372036854775807, 1);
+ EXPECT_EQ("9223372036854775807-01", absl::FormatCivilTime(c));
+ c = c - 1; // Causes normalization
+ EXPECT_EQ("9223372036854775806-12", absl::FormatCivilTime(c));
+
+ c = absl::CivilMonth(-9223372036854775807 - 1, 1);
+ EXPECT_EQ("-9223372036854775808-01", absl::FormatCivilTime(c));
+ c = c + 12; // Causes normalization
+ EXPECT_EQ("-9223372036854775807-01", absl::FormatCivilTime(c));
+}
+
+TEST(CivilTime, LeapYears) {
+ const absl::CivilSecond s1(2013, 2, 28 + 1, 0, 0, 0);
+ EXPECT_EQ("2013-03-01T00:00:00", absl::FormatCivilTime(s1));
+
+ const absl::CivilSecond s2(2012, 2, 28 + 1, 0, 0, 0);
+ EXPECT_EQ("2012-02-29T00:00:00", absl::FormatCivilTime(s2));
+
+ const absl::CivilSecond s3(1900, 2, 28 + 1, 0, 0, 0);
+ EXPECT_EQ("1900-03-01T00:00:00", absl::FormatCivilTime(s3));
+
+ const struct {
+ int year;
+ int days;
+ struct {
+ int month;
+ int day;
+ } leap_day; // The date of the day after Feb 28.
+ } kLeapYearTable[]{
+ {1900, 365, {3, 1}},
+ {1999, 365, {3, 1}},
+ {2000, 366, {2, 29}}, // leap year
+ {2001, 365, {3, 1}},
+ {2002, 365, {3, 1}},
+ {2003, 365, {3, 1}},
+ {2004, 366, {2, 29}}, // leap year
+ {2005, 365, {3, 1}},
+ {2006, 365, {3, 1}},
+ {2007, 365, {3, 1}},
+ {2008, 366, {2, 29}}, // leap year
+ {2009, 365, {3, 1}},
+ {2100, 365, {3, 1}},
+ };
+
+ for (int i = 0; i < ABSL_ARRAYSIZE(kLeapYearTable); ++i) {
+ const int y = kLeapYearTable[i].year;
+ const int m = kLeapYearTable[i].leap_day.month;
+ const int d = kLeapYearTable[i].leap_day.day;
+ const int n = kLeapYearTable[i].days;
+
+ // Tests incrementing through the leap day.
+ const absl::CivilDay feb28(y, 2, 28);
+ const absl::CivilDay next_day = feb28 + 1;
+ EXPECT_EQ(m, next_day.month());
+ EXPECT_EQ(d, next_day.day());
+
+ // Tests difference in days of leap years.
+ const absl::CivilYear year(feb28);
+ const absl::CivilYear next_year = year + 1;
+ EXPECT_EQ(n, absl::CivilDay(next_year) - absl::CivilDay(year));
+ }
+}
+
+TEST(CivilTime, FirstThursdayInMonth) {
+ const absl::CivilDay nov1(2014, 11, 1);
+ const absl::CivilDay thursday =
+ absl::PrevWeekday(nov1, absl::Weekday::thursday) + 7;
+ EXPECT_EQ("2014-11-06", absl::FormatCivilTime(thursday));
+
+ // Bonus: Date of Thanksgiving in the United States
+ // Rule: Fourth Thursday of November
+ const absl::CivilDay thanksgiving = thursday + 7 * 3;
+ EXPECT_EQ("2014-11-27", absl::FormatCivilTime(thanksgiving));
+}
+
+TEST(CivilTime, DocumentationExample) {
+ absl::CivilSecond second(2015, 6, 28, 1, 2, 3); // 2015-06-28 01:02:03
+ absl::CivilMinute minute(second); // 2015-06-28 01:02:00
+ absl::CivilDay day(minute); // 2015-06-28 00:00:00
+
+ second -= 1; // 2015-06-28 01:02:02
+ --second; // 2015-06-28 01:02:01
+ EXPECT_EQ(minute, second - 1); // Comparison between types
+ EXPECT_LT(minute, second);
+
+ // int diff = second - minute; // ERROR: Mixed types, won't compile
+
+ absl::CivilDay june_1(2015, 6, 1); // Pass fields to c'tor.
+ int diff = day - june_1; // Num days between 'day' and June 1
+ EXPECT_EQ(27, diff);
+
+ // Fields smaller than alignment are floored to their minimum value.
+ absl::CivilDay day_floor(2015, 1, 2, 9, 9, 9);
+ EXPECT_EQ(0, day_floor.hour()); // 09:09:09 is floored
+ EXPECT_EQ(absl::CivilDay(2015, 1, 2), day_floor);
+
+ // Unspecified fields default to their minium value
+ absl::CivilDay day_default(2015); // Defaults to Jan 1
+ EXPECT_EQ(absl::CivilDay(2015, 1, 1), day_default);
+
+ // Iterates all the days of June.
+ absl::CivilMonth june(day); // CivilDay -> CivilMonth
+ absl::CivilMonth july = june + 1;
+ for (absl::CivilDay day = june_1; day < july; ++day) {
+ // ...
+ }
+}
+
+} // namespace
diff --git a/absl/time/clock.cc b/absl/time/clock.cc
index 3b1e8739..2915d78b 100644
--- a/absl/time/clock.cc
+++ b/absl/time/clock.cc
@@ -34,7 +34,7 @@
#include "absl/base/thread_annotations.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
Time Now() {
// TODO(bww): Get a timespec instead so we don't have to divide.
int64_t n = absl::GetCurrentTimeNanos();
@@ -44,7 +44,7 @@ Time Now() {
}
return time_internal::FromUnixDuration(absl::Nanoseconds(n));
}
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
// Decide if we should use the fast GetCurrentTimeNanos() algorithm
@@ -59,10 +59,8 @@ Time Now() {
#endif
#endif
-#if defined(__APPLE__)
-#include "absl/time/internal/get_current_time_ios.inc"
-#elif defined(_WIN32)
-#include "absl/time/internal/get_current_time_windows.inc"
+#if defined(__APPLE__) || defined(_WIN32)
+#include "absl/time/internal/get_current_time_chrono.inc"
#else
#include "absl/time/internal/get_current_time_posix.inc"
#endif
@@ -75,11 +73,11 @@ Time Now() {
#if !ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
int64_t GetCurrentTimeNanos() {
return GET_CURRENT_TIME_NANOS_FROM_SYSTEM();
}
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#else // Use the cyclecounter-based implementation below.
@@ -97,7 +95,7 @@ static int64_t stats_slow_paths;
static int64_t stats_fast_slow_paths;
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
// This is a friend wrapper around UnscaledCycleClock::Now()
// (needed to access UnscaledCycleClock).
@@ -522,12 +520,12 @@ static uint64_t UpdateLastSample(uint64_t now_cycles, uint64_t now_ns,
return estimated_base_ns;
}
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace {
// Returns the maximum duration that SleepOnce() can sleep for.
@@ -555,7 +553,7 @@ void SleepOnce(absl::Duration to_sleep) {
}
} // namespace
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
extern "C" {
diff --git a/absl/time/clock.h b/absl/time/clock.h
index 15f587c5..b2941126 100644
--- a/absl/time/clock.h
+++ b/absl/time/clock.h
@@ -26,7 +26,7 @@
#include "absl/time/time.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
// Now()
//
@@ -50,7 +50,7 @@ int64_t GetCurrentTimeNanos();
// * Returns immediately when passed a nonpositive duration.
void SleepFor(absl::Duration duration);
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
// -----------------------------------------------------------------------------
diff --git a/absl/time/clock_test.cc b/absl/time/clock_test.cc
index f143c036..707166d0 100644
--- a/absl/time/clock_test.cc
+++ b/absl/time/clock_test.cc
@@ -35,36 +35,84 @@ TEST(Time, Now) {
EXPECT_GE(after, now);
}
-TEST(SleepForTest, BasicSanity) {
- absl::Duration sleep_time = absl::Milliseconds(2500);
- absl::Time start = absl::Now();
- absl::SleepFor(sleep_time);
- absl::Time end = absl::Now();
- EXPECT_LE(sleep_time - absl::Milliseconds(100), end - start);
- EXPECT_GE(sleep_time + absl::Milliseconds(200), end - start);
-}
+enum class AlarmPolicy { kWithoutAlarm, kWithAlarm };
-#ifdef ABSL_HAVE_ALARM
-// Helper for test SleepFor.
+#if defined(ABSL_HAVE_ALARM)
bool alarm_handler_invoked = false;
+
void AlarmHandler(int signo) {
ASSERT_EQ(signo, SIGALRM);
alarm_handler_invoked = true;
}
+#endif
+
+// Does SleepFor(d) take between lower_bound and upper_bound at least
+// once between now and (now + timeout)? If requested (and supported),
+// add an alarm for the middle of the sleep period and expect it to fire.
+bool SleepForBounded(absl::Duration d, absl::Duration lower_bound,
+ absl::Duration upper_bound, absl::Duration timeout,
+ AlarmPolicy alarm_policy, int* attempts) {
+ const absl::Time deadline = absl::Now() + timeout;
+ while (absl::Now() < deadline) {
+#if defined(ABSL_HAVE_ALARM)
+ sig_t old_alarm = SIG_DFL;
+ if (alarm_policy == AlarmPolicy::kWithAlarm) {
+ alarm_handler_invoked = false;
+ old_alarm = signal(SIGALRM, AlarmHandler);
+ alarm(absl::ToInt64Seconds(d / 2));
+ }
+#else
+ EXPECT_EQ(alarm_policy, AlarmPolicy::kWithoutAlarm);
+#endif
+ ++*attempts;
+ absl::Time start = absl::Now();
+ absl::SleepFor(d);
+ absl::Duration actual = absl::Now() - start;
+#if defined(ABSL_HAVE_ALARM)
+ if (alarm_policy == AlarmPolicy::kWithAlarm) {
+ signal(SIGALRM, old_alarm);
+ if (!alarm_handler_invoked) continue;
+ }
+#endif
+ if (lower_bound <= actual && actual <= upper_bound) {
+ return true; // yes, the SleepFor() was correctly bounded
+ }
+ }
+ return false;
+}
-TEST(SleepForTest, AlarmSupport) {
- alarm_handler_invoked = false;
- sig_t old_alarm = signal(SIGALRM, AlarmHandler);
- alarm(2);
- absl::Duration sleep_time = absl::Milliseconds(3500);
- absl::Time start = absl::Now();
- absl::SleepFor(sleep_time);
- absl::Time end = absl::Now();
- EXPECT_TRUE(alarm_handler_invoked);
- EXPECT_LE(sleep_time - absl::Milliseconds(100), end - start);
- EXPECT_GE(sleep_time + absl::Milliseconds(200), end - start);
- signal(SIGALRM, old_alarm);
+testing::AssertionResult AssertSleepForBounded(absl::Duration d,
+ absl::Duration early,
+ absl::Duration late,
+ absl::Duration timeout,
+ AlarmPolicy alarm_policy) {
+ const absl::Duration lower_bound = d - early;
+ const absl::Duration upper_bound = d + late;
+ int attempts = 0;
+ if (SleepForBounded(d, lower_bound, upper_bound, timeout, alarm_policy,
+ &attempts)) {
+ return testing::AssertionSuccess();
+ }
+ return testing::AssertionFailure()
+ << "SleepFor(" << d << ") did not return within [" << lower_bound
+ << ":" << upper_bound << "] in " << attempts << " attempt"
+ << (attempts == 1 ? "" : "s") << " over " << timeout
+ << (alarm_policy == AlarmPolicy::kWithAlarm ? " with" : " without")
+ << " an alarm";
+}
+
+// Tests that SleepFor() returns neither too early nor too late.
+TEST(SleepFor, Bounded) {
+ const absl::Duration d = absl::Milliseconds(2500);
+ const absl::Duration early = absl::Milliseconds(100);
+ const absl::Duration late = absl::Milliseconds(300);
+ const absl::Duration timeout = 48 * d;
+ EXPECT_TRUE(AssertSleepForBounded(d, early, late, timeout,
+ AlarmPolicy::kWithoutAlarm));
+#if defined(ABSL_HAVE_ALARM)
+ EXPECT_TRUE(AssertSleepForBounded(d, early, late, timeout,
+ AlarmPolicy::kWithAlarm));
+#endif
}
-#endif // ABSL_HAVE_ALARM
} // namespace
diff --git a/absl/time/duration.cc b/absl/time/duration.cc
index 2271f7da..04669709 100644
--- a/absl/time/duration.cc
+++ b/absl/time/duration.cc
@@ -67,7 +67,7 @@
#include "absl/time/time.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace {
@@ -79,10 +79,16 @@ constexpr int64_t kint64min = std::numeric_limits<int64_t>::min();
// Can't use std::isinfinite() because it doesn't exist on windows.
inline bool IsFinite(double d) {
+ if (std::isnan(d)) return false;
return d != std::numeric_limits<double>::infinity() &&
d != -std::numeric_limits<double>::infinity();
}
+inline bool IsValidDivisor(double d) {
+ if (std::isnan(d)) return false;
+ return d != 0.0;
+}
+
// Can't use std::round() because it is only available in C++11.
// Note that we ignore the possibility of floating-point over/underflow.
template <typename Double>
@@ -456,7 +462,7 @@ Duration& Duration::operator/=(int64_t r) {
}
Duration& Duration::operator/=(double r) {
- if (time_internal::IsInfiniteDuration(*this) || r == 0.0) {
+ if (time_internal::IsInfiniteDuration(*this) || !IsValidDivisor(r)) {
const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0);
return *this = is_neg ? -InfiniteDuration() : InfiniteDuration();
}
@@ -667,7 +673,7 @@ std::chrono::hours ToChronoHours(Duration d) {
}
//
-// To/From std::string formatting.
+// To/From string formatting.
//
namespace {
@@ -745,7 +751,7 @@ void AppendNumberUnit(std::string* out, double n, DisplayUnit unit) {
} // namespace
// From Go's doc at http://golang.org/pkg/time/#Duration.String
-// [FormatDuration] returns a std::string representing the duration in the
+// [FormatDuration] returns a string representing the duration in the
// form "72h3m0.5s". Leading zero units are omitted. As a special
// case, durations less than one second format use a smaller unit
// (milli-, micro-, or nanoseconds) to ensure that the leading digit
@@ -788,8 +794,8 @@ std::string FormatDuration(Duration d) {
namespace {
// A helper for ParseDuration() that parses a leading number from the given
-// std::string and stores the result in *int_part/*frac_part/*frac_scale. The
-// given std::string pointer is modified to point to the first unconsumed char.
+// string and stores the result in *int_part/*frac_part/*frac_scale. The
+// given string pointer is modified to point to the first unconsumed char.
bool ConsumeDurationNumber(const char** dpp, int64_t* int_part,
int64_t* frac_part, int64_t* frac_scale) {
*int_part = 0;
@@ -817,8 +823,8 @@ bool ConsumeDurationNumber(const char** dpp, int64_t* int_part,
}
// A helper for ParseDuration() that parses a leading unit designator (e.g.,
-// ns, us, ms, s, m, h) from the given std::string and stores the resulting unit
-// in "*unit". The given std::string pointer is modified to point to the first
+// ns, us, ms, s, m, h) from the given string and stores the resulting unit
+// in "*unit". The given string pointer is modified to point to the first
// unconsumed char.
bool ConsumeDurationUnit(const char** start, Duration* unit) {
const char *s = *start;
@@ -851,7 +857,7 @@ bool ConsumeDurationUnit(const char** start, Duration* unit) {
} // namespace
// From Go's doc at http://golang.org/pkg/time/#ParseDuration
-// [ParseDuration] parses a duration std::string. A duration std::string is
+// [ParseDuration] parses a duration string. A duration string is
// a possibly signed sequence of decimal numbers, each with optional
// fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m".
// Valid time units are "ns", "us" "ms", "s", "m", "h".
@@ -896,14 +902,11 @@ bool ParseDuration(const std::string& dur_string, Duration* d) {
*d = dur;
return true;
}
-
bool ParseFlag(const std::string& text, Duration* dst, std::string* ) {
return ParseDuration(text, dst);
}
-std::string UnparseFlag(Duration d) {
- return FormatDuration(d);
-}
+std::string UnparseFlag(Duration d) { return FormatDuration(d); }
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/duration_benchmark.cc b/absl/time/duration_benchmark.cc
index 54f89a1f..d5657bd5 100644
--- a/absl/time/duration_benchmark.cc
+++ b/absl/time/duration_benchmark.cc
@@ -27,47 +27,113 @@ namespace {
//
void BM_Duration_Factory_Nanoseconds(benchmark::State& state) {
+ int64_t i = 0;
while (state.KeepRunning()) {
- benchmark::DoNotOptimize(absl::Nanoseconds(1));
+ benchmark::DoNotOptimize(absl::Nanoseconds(i));
+ i += 314159;
}
}
BENCHMARK(BM_Duration_Factory_Nanoseconds);
void BM_Duration_Factory_Microseconds(benchmark::State& state) {
+ int64_t i = 0;
while (state.KeepRunning()) {
- benchmark::DoNotOptimize(absl::Microseconds(1));
+ benchmark::DoNotOptimize(absl::Microseconds(i));
+ i += 314;
}
}
BENCHMARK(BM_Duration_Factory_Microseconds);
void BM_Duration_Factory_Milliseconds(benchmark::State& state) {
+ int64_t i = 0;
while (state.KeepRunning()) {
- benchmark::DoNotOptimize(absl::Milliseconds(1));
+ benchmark::DoNotOptimize(absl::Milliseconds(i));
+ i += 1;
}
}
BENCHMARK(BM_Duration_Factory_Milliseconds);
void BM_Duration_Factory_Seconds(benchmark::State& state) {
+ int64_t i = 0;
while (state.KeepRunning()) {
- benchmark::DoNotOptimize(absl::Seconds(1));
+ benchmark::DoNotOptimize(absl::Seconds(i));
+ i += 1;
}
}
BENCHMARK(BM_Duration_Factory_Seconds);
void BM_Duration_Factory_Minutes(benchmark::State& state) {
+ int64_t i = 0;
while (state.KeepRunning()) {
- benchmark::DoNotOptimize(absl::Minutes(1));
+ benchmark::DoNotOptimize(absl::Minutes(i));
+ i += 1;
}
}
BENCHMARK(BM_Duration_Factory_Minutes);
void BM_Duration_Factory_Hours(benchmark::State& state) {
+ int64_t i = 0;
while (state.KeepRunning()) {
- benchmark::DoNotOptimize(absl::Hours(1));
+ benchmark::DoNotOptimize(absl::Hours(i));
+ i += 1;
}
}
BENCHMARK(BM_Duration_Factory_Hours);
+void BM_Duration_Factory_DoubleNanoseconds(benchmark::State& state) {
+ double d = 1;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(absl::Nanoseconds(d));
+ d = d * 1.00000001 + 1;
+ }
+}
+BENCHMARK(BM_Duration_Factory_DoubleNanoseconds);
+
+void BM_Duration_Factory_DoubleMicroseconds(benchmark::State& state) {
+ double d = 1e-3;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(absl::Microseconds(d));
+ d = d * 1.00000001 + 1e-3;
+ }
+}
+BENCHMARK(BM_Duration_Factory_DoubleMicroseconds);
+
+void BM_Duration_Factory_DoubleMilliseconds(benchmark::State& state) {
+ double d = 1e-6;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(absl::Milliseconds(d));
+ d = d * 1.00000001 + 1e-6;
+ }
+}
+BENCHMARK(BM_Duration_Factory_DoubleMilliseconds);
+
+void BM_Duration_Factory_DoubleSeconds(benchmark::State& state) {
+ double d = 1e-9;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(absl::Seconds(d));
+ d = d * 1.00000001 + 1e-9;
+ }
+}
+BENCHMARK(BM_Duration_Factory_DoubleSeconds);
+
+void BM_Duration_Factory_DoubleMinutes(benchmark::State& state) {
+ double d = 1e-9;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(absl::Minutes(d));
+ d = d * 1.00000001 + 1e-9;
+ }
+}
+BENCHMARK(BM_Duration_Factory_DoubleMinutes);
+
+void BM_Duration_Factory_DoubleHours(benchmark::State& state) {
+ double d = 1e-9;
+ while (state.KeepRunning()) {
+ benchmark::DoNotOptimize(absl::Hours(d));
+ d = d * 1.00000001 + 1e-9;
+ }
+}
+BENCHMARK(BM_Duration_Factory_DoubleHours);
+
//
// Arithmetic
//
diff --git a/absl/time/duration_test.cc b/absl/time/duration_test.cc
index 704684ed..61f3c5c0 100644
--- a/absl/time/duration_test.cc
+++ b/absl/time/duration_test.cc
@@ -16,7 +16,9 @@
#include <cmath>
#include <cstdint>
#include <ctime>
+#include <iomanip>
#include <limits>
+#include <random>
#include <string>
#include "gmock/gmock.h"
@@ -54,6 +56,17 @@ MATCHER_P(TimevalMatcher, tv, "") {
return false;
}
+TEST(Duration, ConstExpr) {
+ constexpr absl::Duration d0 = absl::ZeroDuration();
+ static_assert(d0 == absl::ZeroDuration(), "ZeroDuration()");
+ constexpr absl::Duration d1 = absl::Seconds(1);
+ static_assert(d1 == absl::Seconds(1), "Seconds(1)");
+ static_assert(d1 != absl::ZeroDuration(), "Seconds(1)");
+ constexpr absl::Duration d2 = absl::InfiniteDuration();
+ static_assert(d2 == absl::InfiniteDuration(), "InfiniteDuration()");
+ static_assert(d2 != absl::ZeroDuration(), "InfiniteDuration()");
+}
+
TEST(Duration, ValueSemantics) {
// If this compiles, the test passes.
constexpr absl::Duration a; // Default construction
@@ -105,22 +118,22 @@ TEST(Duration, Factories) {
}
TEST(Duration, ToConversion) {
-#define TEST_DURATION_CONVERSION(UNIT) \
- do { \
- const absl::Duration d = absl::UNIT(1.5); \
- const absl::Duration z = absl::ZeroDuration(); \
- const absl::Duration inf = absl::InfiniteDuration(); \
- const double dbl_inf = std::numeric_limits<double>::infinity(); \
- EXPECT_EQ(kint64min, absl::ToInt64##UNIT(-inf)); \
- EXPECT_EQ(-1, absl::ToInt64##UNIT(-d)); \
- EXPECT_EQ(0, absl::ToInt64##UNIT(z)); \
- EXPECT_EQ(1, absl::ToInt64##UNIT(d)); \
- EXPECT_EQ(kint64max, absl::ToInt64##UNIT(inf)); \
- EXPECT_EQ(-dbl_inf, absl::ToDouble##UNIT(-inf)); \
- EXPECT_EQ(-1.5, absl::ToDouble##UNIT(-d)); \
- EXPECT_EQ(0, absl::ToDouble##UNIT(z)); \
- EXPECT_EQ(1.5, absl::ToDouble##UNIT(d)); \
- EXPECT_EQ(dbl_inf, absl::ToDouble##UNIT(inf)); \
+#define TEST_DURATION_CONVERSION(UNIT) \
+ do { \
+ const absl::Duration d = absl::UNIT(1.5); \
+ constexpr absl::Duration z = absl::ZeroDuration(); \
+ constexpr absl::Duration inf = absl::InfiniteDuration(); \
+ constexpr double dbl_inf = std::numeric_limits<double>::infinity(); \
+ EXPECT_EQ(kint64min, absl::ToInt64##UNIT(-inf)); \
+ EXPECT_EQ(-1, absl::ToInt64##UNIT(-d)); \
+ EXPECT_EQ(0, absl::ToInt64##UNIT(z)); \
+ EXPECT_EQ(1, absl::ToInt64##UNIT(d)); \
+ EXPECT_EQ(kint64max, absl::ToInt64##UNIT(inf)); \
+ EXPECT_EQ(-dbl_inf, absl::ToDouble##UNIT(-inf)); \
+ EXPECT_EQ(-1.5, absl::ToDouble##UNIT(-d)); \
+ EXPECT_EQ(0, absl::ToDouble##UNIT(z)); \
+ EXPECT_EQ(1.5, absl::ToDouble##UNIT(d)); \
+ EXPECT_EQ(dbl_inf, absl::ToDouble##UNIT(inf)); \
} while (0)
TEST_DURATION_CONVERSION(Nanoseconds);
@@ -790,6 +803,40 @@ TEST(Duration, DivisionByZero) {
EXPECT_EQ(-dbl_inf, absl::FDivDuration(-any_dur, zero));
}
+TEST(Duration, NaN) {
+ // Note that IEEE 754 does not define the behavior of a nan's sign when it is
+ // copied, so the code below allows for either + or - InfiniteDuration.
+#define TEST_NAN_HANDLING(NAME, NAN) \
+ do { \
+ const auto inf = absl::InfiniteDuration(); \
+ auto x = NAME(NAN); \
+ EXPECT_TRUE(x == inf || x == -inf); \
+ auto y = NAME(42); \
+ y *= NAN; \
+ EXPECT_TRUE(y == inf || y == -inf); \
+ auto z = NAME(42); \
+ z /= NAN; \
+ EXPECT_TRUE(z == inf || z == -inf); \
+ } while (0)
+
+ const double nan = std::numeric_limits<double>::quiet_NaN();
+ TEST_NAN_HANDLING(absl::Nanoseconds, nan);
+ TEST_NAN_HANDLING(absl::Microseconds, nan);
+ TEST_NAN_HANDLING(absl::Milliseconds, nan);
+ TEST_NAN_HANDLING(absl::Seconds, nan);
+ TEST_NAN_HANDLING(absl::Minutes, nan);
+ TEST_NAN_HANDLING(absl::Hours, nan);
+
+ TEST_NAN_HANDLING(absl::Nanoseconds, -nan);
+ TEST_NAN_HANDLING(absl::Microseconds, -nan);
+ TEST_NAN_HANDLING(absl::Milliseconds, -nan);
+ TEST_NAN_HANDLING(absl::Seconds, -nan);
+ TEST_NAN_HANDLING(absl::Minutes, -nan);
+ TEST_NAN_HANDLING(absl::Hours, -nan);
+
+#undef TEST_NAN_HANDLING
+}
+
TEST(Duration, Range) {
const absl::Duration range = ApproxYears(100 * 1e9);
const absl::Duration range_future = range;
@@ -1284,6 +1331,16 @@ TEST(Duration, SmallConversions) {
EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(0.875e-9));
EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(1.000e-9));
+ EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(-0.124999999e-9));
+ EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.125e-9));
+ EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.250e-9));
+ EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.375e-9));
+ EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.500e-9));
+ EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.625e-9));
+ EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.750e-9));
+ EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-0.875e-9));
+ EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-1.000e-9));
+
timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 0;
@@ -1313,6 +1370,86 @@ TEST(Duration, SmallConversions) {
EXPECT_THAT(ToTimeval(absl::Nanoseconds(2000)), TimevalMatcher(tv));
}
+void VerifySameAsMul(double time_as_seconds, int* const misses) {
+ auto direct_seconds = absl::Seconds(time_as_seconds);
+ auto mul_by_one_second = time_as_seconds * absl::Seconds(1);
+ if (direct_seconds != mul_by_one_second) {
+ if (*misses > 10) return;
+ ASSERT_LE(++(*misses), 10) << "Too many errors, not reporting more.";
+ EXPECT_EQ(direct_seconds, mul_by_one_second)
+ << "given double time_as_seconds = " << std::setprecision(17)
+ << time_as_seconds;
+ }
+}
+
+// For a variety of interesting durations, we find the exact point
+// where one double converts to that duration, and the very next double
+// converts to the next duration. For both of those points, verify that
+// Seconds(point) returns the same duration as point * Seconds(1.0)
+TEST(Duration, ToDoubleSecondsCheckEdgeCases) {
+ constexpr uint32_t kTicksPerSecond = absl::time_internal::kTicksPerSecond;
+ constexpr auto duration_tick = absl::time_internal::MakeDuration(0, 1u);
+ int misses = 0;
+ for (int64_t seconds = 0; seconds < 99; ++seconds) {
+ uint32_t tick_vals[] = {0, +999, +999999, +999999999, kTicksPerSecond - 1,
+ 0, 1000, 1000000, 1000000000, kTicksPerSecond,
+ 1, 1001, 1000001, 1000000001, kTicksPerSecond + 1,
+ 2, 1002, 1000002, 1000000002, kTicksPerSecond + 2,
+ 3, 1003, 1000003, 1000000003, kTicksPerSecond + 3,
+ 4, 1004, 1000004, 1000000004, kTicksPerSecond + 4,
+ 5, 6, 7, 8, 9};
+ for (uint32_t ticks : tick_vals) {
+ absl::Duration s_plus_t = absl::Seconds(seconds) + ticks * duration_tick;
+ for (absl::Duration d : {s_plus_t, -s_plus_t}) {
+ absl::Duration after_d = d + duration_tick;
+ EXPECT_NE(d, after_d);
+ EXPECT_EQ(after_d - d, duration_tick);
+
+ double low_edge = ToDoubleSeconds(d);
+ EXPECT_EQ(d, absl::Seconds(low_edge));
+
+ double high_edge = ToDoubleSeconds(after_d);
+ EXPECT_EQ(after_d, absl::Seconds(high_edge));
+
+ for (;;) {
+ double midpoint = low_edge + (high_edge - low_edge) / 2;
+ if (midpoint == low_edge || midpoint == high_edge) break;
+ absl::Duration mid_duration = absl::Seconds(midpoint);
+ if (mid_duration == d) {
+ low_edge = midpoint;
+ } else {
+ EXPECT_EQ(mid_duration, after_d);
+ high_edge = midpoint;
+ }
+ }
+ // Now low_edge is the highest double that converts to Duration d,
+ // and high_edge is the lowest double that converts to Duration after_d.
+ VerifySameAsMul(low_edge, &misses);
+ VerifySameAsMul(high_edge, &misses);
+ }
+ }
+ }
+}
+
+TEST(Duration, ToDoubleSecondsCheckRandom) {
+ std::random_device rd;
+ std::seed_seq seed({rd(), rd(), rd(), rd(), rd(), rd(), rd(), rd()});
+ std::mt19937_64 gen(seed);
+ // We want doubles distributed from 1/8ns up to 2^63, where
+ // as many values are tested from 1ns to 2ns as from 1sec to 2sec,
+ // so even distribute along a log-scale of those values, and
+ // exponentiate before using them. (9.223377e+18 is just slightly
+ // out of bounds for absl::Duration.)
+ std::uniform_real_distribution<double> uniform(std::log(0.125e-9),
+ std::log(9.223377e+18));
+ int misses = 0;
+ for (int i = 0; i < 1000000; ++i) {
+ double d = std::exp(uniform(gen));
+ VerifySameAsMul(d, &misses);
+ VerifySameAsMul(-d, &misses);
+ }
+}
+
TEST(Duration, ConversionSaturation) {
absl::Duration d;
diff --git a/absl/time/format.cc b/absl/time/format.cc
index 6bf3c20f..6aabcee9 100644
--- a/absl/time/format.cc
+++ b/absl/time/format.cc
@@ -22,7 +22,7 @@
namespace cctz = absl::time_internal::cctz;
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
extern const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
extern const char RFC3339_sec[] = "%Y-%m-%dT%H:%M:%S%Ez";
@@ -35,15 +35,13 @@ namespace {
const char kInfiniteFutureStr[] = "infinite-future";
const char kInfinitePastStr[] = "infinite-past";
-using cctz_sec = cctz::time_point<cctz::sys_seconds>;
-using cctz_fem = cctz::detail::femtoseconds;
struct cctz_parts {
- cctz_sec sec;
- cctz_fem fem;
+ cctz::time_point<cctz::seconds> sec;
+ cctz::detail::femtoseconds fem;
};
-inline cctz_sec unix_epoch() {
- return std::chrono::time_point_cast<cctz::sys_seconds>(
+inline cctz::time_point<cctz::seconds> unix_epoch() {
+ return std::chrono::time_point_cast<cctz::seconds>(
std::chrono::system_clock::from_time_t(0));
}
@@ -54,8 +52,8 @@ cctz_parts Split(absl::Time t) {
const auto d = time_internal::ToUnixDuration(t);
const int64_t rep_hi = time_internal::GetRepHi(d);
const int64_t rep_lo = time_internal::GetRepLo(d);
- const auto sec = unix_epoch() + cctz::sys_seconds(rep_hi);
- const auto fem = cctz_fem(rep_lo * (1000 * 1000 / 4));
+ const auto sec = unix_epoch() + cctz::seconds(rep_hi);
+ const auto fem = cctz::detail::femtoseconds(rep_lo * (1000 * 1000 / 4));
return {sec, fem};
}
@@ -91,7 +89,7 @@ bool ParseTime(const std::string& format, const std::string& input, absl::Time*
return absl::ParseTime(format, input, absl::UTCTimeZone(), time, err);
}
-// If the input std::string does not contain an explicit UTC offset, interpret
+// If the input string does not contain an explicit UTC offset, interpret
// the fields with respect to the given TimeZone.
bool ParseTime(const std::string& format, const std::string& input, absl::TimeZone tz,
absl::Time* time, std::string* err) {
@@ -139,5 +137,5 @@ std::string UnparseFlag(absl::Time t) {
return absl::FormatTime(RFC3339_full, t, absl::UTCTimeZone());
}
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/format_benchmark.cc b/absl/time/format_benchmark.cc
index ee53d71c..766f1b39 100644
--- a/absl/time/format_benchmark.cc
+++ b/absl/time/format_benchmark.cc
@@ -38,7 +38,8 @@ void BM_Format_FormatTime(benchmark::State& state) {
const absl::TimeZone lax =
absl::time_internal::LoadTimeZone("America/Los_Angeles");
const absl::Time t =
- absl::FromDateTime(1977, 6, 28, 9, 8, 7, lax) + absl::Nanoseconds(1);
+ absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax) +
+ absl::Nanoseconds(1);
while (state.KeepRunning()) {
benchmark::DoNotOptimize(absl::FormatTime(fmt, t, lax).length());
}
@@ -50,8 +51,8 @@ void BM_Format_ParseTime(benchmark::State& state) {
state.SetLabel(fmt);
const absl::TimeZone lax =
absl::time_internal::LoadTimeZone("America/Los_Angeles");
- absl::Time t =
- absl::FromDateTime(1977, 6, 28, 9, 8, 7, lax) + absl::Nanoseconds(1);
+ absl::Time t = absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax) +
+ absl::Nanoseconds(1);
const std::string when = absl::FormatTime(fmt, t, lax);
std::string err;
while (state.KeepRunning()) {
diff --git a/absl/time/format_test.cc b/absl/time/format_test.cc
index 7c84c33f..ac8d5ea3 100644
--- a/absl/time/format_test.cc
+++ b/absl/time/format_test.cc
@@ -118,7 +118,7 @@ TEST(FormatTime, RFC1123FormatPadsYear) { // locale specific
absl::TimeZone tz = absl::UTCTimeZone();
// A year of 77 should be padded to 0077.
- absl::Time t = absl::FromDateTime(77, 6, 28, 9, 8, 7, tz);
+ absl::Time t = absl::FromCivil(absl::CivilSecond(77, 6, 28, 9, 8, 7), tz);
EXPECT_EQ("Mon, 28 Jun 0077 09:08:07 +0000",
absl::FormatTime(absl::RFC1123_full, t, tz));
EXPECT_EQ("28 Jun 0077 09:08:07 +0000",
@@ -154,9 +154,9 @@ TEST(ParseTime, Basics) {
EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z",
"2013-06-28 19:08:09 -0800", &t, &err))
<< err;
- absl::Time::Breakdown bd = t.In(absl::FixedTimeZone(-8 * 60 * 60));
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 6, 28, 19, 8, 9, -8 * 60 * 60, false);
- EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
+ const auto ci = absl::FixedTimeZone(-8 * 60 * 60).At(t);
+ EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs);
+ EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
}
TEST(ParseTime, NullErrorString) {
@@ -177,17 +177,17 @@ TEST(ParseTime, WithTimeZone) {
EXPECT_TRUE(
absl::ParseTime("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &t, &e))
<< e;
- absl::Time::Breakdown bd = t.In(tz);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 6, 28, 19, 8, 9, -7 * 60 * 60, true);
- EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
+ auto ci = tz.At(t);
+ EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs);
+ EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
// But the timezone is ignored when a UTC offset is present.
EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z",
"2013-06-28 19:08:09 +0800", tz, &t, &e))
<< e;
- bd = t.In(absl::FixedTimeZone(8 * 60 * 60));
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 6, 28, 19, 8, 9, 8 * 60 * 60, false);
- EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
+ ci = absl::FixedTimeZone(8 * 60 * 60).At(t);
+ EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs);
+ EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
}
TEST(ParseTime, ErrorCases) {
@@ -332,15 +332,15 @@ TEST(ParseTime, InfiniteTime) {
EXPECT_TRUE(absl::ParseTime("infinite-future %H:%M", "infinite-future 03:04",
&t, &err));
EXPECT_NE(absl::InfiniteFuture(), t);
- EXPECT_EQ(3, t.In(tz).hour);
- EXPECT_EQ(4, t.In(tz).minute);
+ EXPECT_EQ(3, tz.At(t).cs.hour());
+ EXPECT_EQ(4, tz.At(t).cs.minute());
// "infinite-past" as literal std::string
EXPECT_TRUE(
absl::ParseTime("infinite-past %H:%M", "infinite-past 03:04", &t, &err));
EXPECT_NE(absl::InfinitePast(), t);
- EXPECT_EQ(3, t.In(tz).hour);
- EXPECT_EQ(4, t.In(tz).minute);
+ EXPECT_EQ(3, tz.At(t).cs.hour());
+ EXPECT_EQ(4, tz.At(t).cs.minute());
// The input doesn't match the format.
EXPECT_FALSE(absl::ParseTime("infinite-future %H:%M", "03:04", &t, &err));
@@ -365,16 +365,17 @@ TEST(ParseTime, FailsOnUnrepresentableTime) {
//
TEST(FormatParse, RoundTrip) {
- const absl::TimeZone gst =
+ const absl::TimeZone lax =
absl::time_internal::LoadTimeZone("America/Los_Angeles");
- const absl::Time in = absl::FromDateTime(1977, 6, 28, 9, 8, 7, gst);
+ const absl::Time in =
+ absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax);
const absl::Duration subseconds = absl::Nanoseconds(654321);
std::string err;
// RFC3339, which renders subseconds.
{
absl::Time out;
- const std::string s = absl::FormatTime(absl::RFC3339_full, in + subseconds, gst);
+ const std::string s = absl::FormatTime(absl::RFC3339_full, in + subseconds, lax);
EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
<< s << ": " << err;
EXPECT_EQ(in + subseconds, out); // RFC3339_full includes %Ez
@@ -383,7 +384,7 @@ TEST(FormatParse, RoundTrip) {
// RFC1123, which only does whole seconds.
{
absl::Time out;
- const std::string s = absl::FormatTime(absl::RFC1123_full, in, gst);
+ const std::string s = absl::FormatTime(absl::RFC1123_full, in, lax);
EXPECT_TRUE(absl::ParseTime(absl::RFC1123_full, s, &out, &err))
<< s << ": " << err;
EXPECT_EQ(in, out); // RFC1123_full includes %z
@@ -393,7 +394,12 @@ TEST(FormatParse, RoundTrip) {
// work. On Windows, `absl::ParseTime()` falls back to std::get_time() which
// appears to fail on "%c" (or at least on the "%c" text produced by
// `strftime()`). This makes it fail the round-trip test.
-#ifndef _MSC_VER
+ //
+ // Under the emscripten compiler `absl::ParseTime() falls back to
+ // `strptime()`, but that ends up using a different definition for "%c"
+ // compared to `strftime()`, also causing the round-trip test to fail
+ // (see https://github.com/kripken/emscripten/pull/7491).
+#if !defined(_MSC_VER) && !defined(__EMSCRIPTEN__)
// Even though we don't know what %c will produce, it should roundtrip,
// but only in the 0-offset timezone.
{
@@ -402,7 +408,7 @@ TEST(FormatParse, RoundTrip) {
EXPECT_TRUE(absl::ParseTime("%c", s, &out, &err)) << s << ": " << err;
EXPECT_EQ(in, out);
}
-#endif // _MSC_VER
+#endif // !_MSC_VER && !__EMSCRIPTEN__
}
TEST(FormatParse, RoundTripDistantFuture) {
diff --git a/absl/time/internal/cctz/BUILD.bazel b/absl/time/internal/cctz/BUILD.bazel
index 9f1ba21c..e2cfe801 100644
--- a/absl/time/internal/cctz/BUILD.bazel
+++ b/absl/time/internal/cctz/BUILD.bazel
@@ -12,6 +12,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
+package(features = ["-parse_headers"])
+
licenses(["notice"]) # Apache License
### libraries
@@ -102,6 +104,7 @@ cc_test(
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
+ "no_test_wasm",
],
deps = [
":civil_time",
diff --git a/absl/time/internal/cctz/include/cctz/civil_time.h b/absl/time/internal/cctz/include/cctz/civil_time.h
index 31a28cb7..9fabbc3d 100644
--- a/absl/time/internal/cctz/include/cctz/civil_time.h
+++ b/absl/time/internal/cctz/include/cctz/civil_time.h
@@ -18,7 +18,7 @@
#include "absl/time/internal/cctz/include/cctz/civil_time_detail.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -60,7 +60,7 @@ namespace cctz {
// inferior fields to their minimum valid value (as described above). The
// following are examples of how each of the six types would align the fields
// representing November 22, 2015 at 12:34:56 in the afternoon. (Note: the
-// std::string format used here is not important; it's just a shorthand way of
+// string format used here is not important; it's just a shorthand way of
// showing the six YMDHMS fields.)
//
// civil_second 2015-11-22 12:34:56
@@ -325,7 +325,7 @@ using detail::get_yearday;
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_
diff --git a/absl/time/internal/cctz/include/cctz/civil_time_detail.h b/absl/time/internal/cctz/include/cctz/civil_time_detail.h
index 78d1db1c..289ff499 100644
--- a/absl/time/internal/cctz/include/cctz/civil_time_detail.h
+++ b/absl/time/internal/cctz/include/cctz/civil_time_detail.h
@@ -32,7 +32,7 @@
#endif
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -327,6 +327,37 @@ CONSTEXPR_F fields align(year_tag, fields f) noexcept {
////////////////////////////////////////////////////////////////////////
+namespace impl {
+
+template <typename H>
+H AbslHashValueImpl(second_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d, f.hh, f.mm, f.ss);
+}
+template <typename H>
+H AbslHashValueImpl(minute_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d, f.hh, f.mm);
+}
+template <typename H>
+H AbslHashValueImpl(hour_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d, f.hh);
+}
+template <typename H>
+H AbslHashValueImpl(day_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d);
+}
+template <typename H>
+H AbslHashValueImpl(month_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m);
+}
+template <typename H>
+H AbslHashValueImpl(year_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y);
+}
+
+} // namespace impl
+
+////////////////////////////////////////////////////////////////////////
+
template <typename T>
class civil_time {
public:
@@ -356,11 +387,11 @@ class civil_time {
: civil_time(ct.f_) {}
// Factories for the maximum/minimum representable civil_time.
- static civil_time max() {
+ static CONSTEXPR_F civil_time max() {
const auto max_year = std::numeric_limits<std::int_least64_t>::max();
return civil_time(max_year, 12, 31, 23, 59, 59);
}
- static civil_time min() {
+ static CONSTEXPR_F civil_time min() {
const auto min_year = std::numeric_limits<std::int_least64_t>::min();
return civil_time(min_year, 1, 1, 0, 0, 0);
}
@@ -404,23 +435,24 @@ class civil_time {
}
// Binary arithmetic operators.
- inline friend CONSTEXPR_M civil_time operator+(civil_time a,
- diff_t n) noexcept {
+ friend CONSTEXPR_F civil_time operator+(civil_time a, diff_t n) noexcept {
return a += n;
}
- inline friend CONSTEXPR_M civil_time operator+(diff_t n,
- civil_time a) noexcept {
+ friend CONSTEXPR_F civil_time operator+(diff_t n, civil_time a) noexcept {
return a += n;
}
- inline friend CONSTEXPR_M civil_time operator-(civil_time a,
- diff_t n) noexcept {
+ friend CONSTEXPR_F civil_time operator-(civil_time a, diff_t n) noexcept {
return a -= n;
}
- inline friend CONSTEXPR_M diff_t operator-(const civil_time& lhs,
- const civil_time& rhs) noexcept {
+ friend CONSTEXPR_F diff_t operator-(civil_time lhs, civil_time rhs) noexcept {
return difference(T{}, lhs.f_, rhs.f_);
}
+ template <typename H>
+ friend H AbslHashValue(H h, civil_time a) {
+ return impl::AbslHashValueImpl(T{}, std::move(h), a.f_);
+ }
+
private:
// All instantiations of this template are allowed to call the following
// private constructor and access the private fields member.
@@ -435,8 +467,8 @@ class civil_time {
// Disallows difference between differently aligned types.
// auto n = civil_day(...) - civil_hour(...); // would be confusing.
-template <typename Tag1, typename Tag2>
-CONSTEXPR_F diff_t operator-(civil_time<Tag1>, civil_time<Tag2>) = delete;
+template <typename T, typename U>
+CONSTEXPR_F diff_t operator-(civil_time<T>, civil_time<U>) = delete;
using civil_year = civil_time<year_tag>;
using civil_month = civil_time<month_tag>;
@@ -505,22 +537,20 @@ enum class weekday {
};
CONSTEXPR_F weekday get_weekday(const civil_day& cd) noexcept {
- CONSTEXPR_D weekday k_weekday_by_sun_off[7] = {
- weekday::sunday, weekday::monday, weekday::tuesday,
- weekday::wednesday, weekday::thursday, weekday::friday,
+ CONSTEXPR_D weekday k_weekday_by_mon_off[13] = {
+ weekday::monday, weekday::tuesday, weekday::wednesday,
+ weekday::thursday, weekday::friday, weekday::saturday,
+ weekday::sunday, weekday::monday, weekday::tuesday,
+ weekday::wednesday, weekday::thursday, weekday::friday,
weekday::saturday,
};
CONSTEXPR_D int k_weekday_offsets[1 + 12] = {
-1, 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4,
};
- year_t wd = cd.year() - (cd.month() < 3);
- if (wd >= 0) {
- wd += wd / 4 - wd / 100 + wd / 400;
- } else {
- wd += (wd - 3) / 4 - (wd - 99) / 100 + (wd - 399) / 400;
- }
+ year_t wd = 2400 + (cd.year() % 400) - (cd.month() < 3);
+ wd += wd / 4 - wd / 100 + wd / 400;
wd += k_weekday_offsets[cd.month()] + cd.day();
- return k_weekday_by_sun_off[(wd % 7 + 7) % 7];
+ return k_weekday_by_mon_off[wd % 7 + 6];
}
////////////////////////////////////////////////////////////////////////
@@ -556,7 +586,7 @@ std::ostream& operator<<(std::ostream& os, weekday wd);
} // namespace detail
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#undef CONSTEXPR_M
diff --git a/absl/time/internal/cctz/include/cctz/time_zone.h b/absl/time/internal/cctz/include/cctz/time_zone.h
index 52d69384..0c34393e 100644
--- a/absl/time/internal/cctz/include/cctz/time_zone.h
+++ b/absl/time/internal/cctz/include/cctz/time_zone.h
@@ -28,30 +28,31 @@
#include "absl/time/internal/cctz/include/cctz/civil_time.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
// Convenience aliases. Not intended as public API points.
template <typename D>
using time_point = std::chrono::time_point<std::chrono::system_clock, D>;
-using sys_seconds = std::chrono::duration<std::int_fast64_t>;
+using seconds = std::chrono::duration<std::int_fast64_t>;
+using sys_seconds = seconds; // Deprecated. Use cctz::seconds instead.
namespace detail {
template <typename D>
-inline std::pair<time_point<sys_seconds>, D>
+inline std::pair<time_point<seconds>, D>
split_seconds(const time_point<D>& tp) {
- auto sec = std::chrono::time_point_cast<sys_seconds>(tp);
+ auto sec = std::chrono::time_point_cast<seconds>(tp);
auto sub = tp - sec;
if (sub.count() < 0) {
- sec -= sys_seconds(1);
- sub += sys_seconds(1);
+ sec -= seconds(1);
+ sub += seconds(1);
}
return {sec, std::chrono::duration_cast<D>(sub)};
}
-inline std::pair<time_point<sys_seconds>, sys_seconds>
-split_seconds(const time_point<sys_seconds>& tp) {
- return {tp, sys_seconds(0)};
+inline std::pair<time_point<seconds>, seconds>
+split_seconds(const time_point<seconds>& tp) {
+ return {tp, seconds::zero()};
}
} // namespace detail
@@ -100,7 +101,7 @@ class time_zone {
bool is_dst; // is offset non-standard?
const char* abbr; // time-zone abbreviation (e.g., "PST")
};
- absolute_lookup lookup(const time_point<sys_seconds>& tp) const;
+ absolute_lookup lookup(const time_point<seconds>& tp) const;
template <typename D>
absolute_lookup lookup(const time_point<D>& tp) const {
return lookup(detail::split_seconds(tp).first);
@@ -119,9 +120,9 @@ class time_zone {
// of the given civil-time argument, and the pre, trans, and post
// members will give the absolute time answers using the pre-transition
// offset, the transition point itself, and the post-transition offset,
- // respectively (all three times are equal if kind == UNIQUE). If any
+ // respectively (all three times are equal if kind == UNIQUE). If any
// of these three absolute times is outside the representable range of a
- // time_point<sys_seconds> the field is set to its maximum/minimum value.
+ // time_point<seconds> the field is set to its maximum/minimum value.
//
// Example:
// cctz::time_zone lax;
@@ -153,23 +154,90 @@ class time_zone {
SKIPPED, // the civil time did not exist (pre >= trans > post)
REPEATED, // the civil time was ambiguous (pre < trans <= post)
} kind;
- time_point<sys_seconds> pre; // uses the pre-transition offset
- time_point<sys_seconds> trans; // instant of civil-offset change
- time_point<sys_seconds> post; // uses the post-transition offset
+ time_point<seconds> pre; // uses the pre-transition offset
+ time_point<seconds> trans; // instant of civil-offset change
+ time_point<seconds> post; // uses the post-transition offset
};
civil_lookup lookup(const civil_second& cs) const;
+ // Finds the time of the next/previous offset change in this time zone.
+ //
+ // By definition, next_transition(tp, &trans) returns false when tp has
+ // its maximum value, and prev_transition(tp, &trans) returns false
+ // when tp has its minimum value. If the zone has no transitions, the
+ // result will also be false no matter what the argument.
+ //
+ // Otherwise, when tp has its minimum value, next_transition(tp, &trans)
+ // returns true and sets trans to the first recorded transition. Chains
+ // of calls to next_transition()/prev_transition() will eventually return
+ // false, but it is unspecified exactly when next_transition(tp, &trans)
+ // jumps to false, or what time is set by prev_transition(tp, &trans) for
+ // a very distant tp.
+ //
+ // Note: Enumeration of time-zone transitions is for informational purposes
+ // only. Modern time-related code should not care about when offset changes
+ // occur.
+ //
+ // Example:
+ // cctz::time_zone nyc;
+ // if (!cctz::load_time_zone("America/New_York", &nyc)) { ... }
+ // const auto now = std::chrono::system_clock::now();
+ // auto tp = cctz::time_point<cctz::seconds>::min();
+ // cctz::time_zone::civil_transition trans;
+ // while (tp <= now && nyc.next_transition(tp, &trans)) {
+ // // transition: trans.from -> trans.to
+ // tp = nyc.lookup(trans.to).trans;
+ // }
+ struct civil_transition {
+ civil_second from; // the civil time we jump from
+ civil_second to; // the civil time we jump to
+ };
+ bool next_transition(const time_point<seconds>& tp,
+ civil_transition* trans) const;
+ template <typename D>
+ bool next_transition(const time_point<D>& tp,
+ civil_transition* trans) const {
+ return next_transition(detail::split_seconds(tp).first, trans);
+ }
+ bool prev_transition(const time_point<seconds>& tp,
+ civil_transition* trans) const;
+ template <typename D>
+ bool prev_transition(const time_point<D>& tp,
+ civil_transition* trans) const {
+ return prev_transition(detail::split_seconds(tp).first, trans);
+ }
+
+ // version() and description() provide additional information about the
+ // time zone. The content of each of the returned strings is unspecified,
+ // however, when the IANA Time Zone Database is the underlying data source
+ // the version() std::string will be in the familar form (e.g, "2018e") or
+ // empty when unavailable.
+ //
+ // Note: These functions are for informational or testing purposes only.
+ std::string version() const; // empty when unknown
+ std::string description() const;
+
+ // Relational operators.
+ friend bool operator==(time_zone lhs, time_zone rhs) {
+ return &lhs.effective_impl() == &rhs.effective_impl();
+ }
+ friend bool operator!=(time_zone lhs, time_zone rhs) {
+ return !(lhs == rhs);
+ }
+
+ template <typename H>
+ friend H AbslHashValue(H h, time_zone tz) {
+ return H::combine(std::move(h), &tz.effective_impl());
+ }
+
class Impl;
private:
explicit time_zone(const Impl* impl) : impl_(impl) {}
+ const Impl& effective_impl() const; // handles implicit UTC
const Impl* impl_;
};
-// Relational operators.
-bool operator==(time_zone lhs, time_zone rhs);
-inline bool operator!=(time_zone lhs, time_zone rhs) { return !(lhs == rhs); }
-
// Loads the named time zone. May perform I/O on the initial load.
// If the name is invalid, or some other kind of error occurs, returns
// false and "*tz" is set to the UTC time zone.
@@ -181,9 +249,10 @@ time_zone utc_time_zone();
// Returns a time zone that is a fixed offset (seconds east) from UTC.
// Note: If the absolute value of the offset is greater than 24 hours
// you'll get UTC (i.e., zero offset) instead.
-time_zone fixed_time_zone(const sys_seconds& offset);
+time_zone fixed_time_zone(const seconds& offset);
// Returns a time zone representing the local time zone. Falls back to UTC.
+// Note: local_time_zone.name() may only be something like "localtime".
time_zone local_time_zone();
// Returns the civil time (cctz::civil_second) within the given time zone at
@@ -200,8 +269,8 @@ inline civil_second convert(const time_point<D>& tp, const time_zone& tz) {
// it was either repeated or non-existent), then the returned time_point is
// the best estimate that preserves relative order. That is, this function
// guarantees that if cs1 < cs2, then convert(cs1, tz) <= convert(cs2, tz).
-inline time_point<sys_seconds> convert(const civil_second& cs,
- const time_zone& tz) {
+inline time_point<seconds> convert(const civil_second& cs,
+ const time_zone& tz) {
const time_zone::civil_lookup cl = tz.lookup(cs);
if (cl.kind == time_zone::civil_lookup::SKIPPED) return cl.trans;
return cl.pre;
@@ -209,14 +278,14 @@ inline time_point<sys_seconds> convert(const civil_second& cs,
namespace detail {
using femtoseconds = std::chrono::duration<std::int_fast64_t, std::femto>;
-std::string format(const std::string&, const time_point<sys_seconds>&,
+std::string format(const std::string&, const time_point<seconds>&,
const femtoseconds&, const time_zone&);
bool parse(const std::string&, const std::string&, const time_zone&,
- time_point<sys_seconds>*, femtoseconds*, std::string* err = nullptr);
+ time_point<seconds>*, femtoseconds*, std::string* err = nullptr);
} // namespace detail
// Formats the given time_point in the given cctz::time_zone according to
-// the provided format std::string. Uses strftime()-like formatting options,
+// the provided format string. Uses strftime()-like formatting options,
// with the following extensions:
//
// - %Ez - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm)
@@ -227,7 +296,7 @@ bool parse(const std::string&, const std::string&, const time_zone&,
// - %E*f - Fractional seconds with full precision (a literal '*')
// - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999)
//
-// Note that %E0S behaves like %S, and %E0f produces no characters. In
+// Note that %E0S behaves like %S, and %E0f produces no characters. In
// contrast %E*f always produces at least one digit, which may be '0'.
//
// Note that %Y produces as many characters as it takes to fully render the
@@ -235,7 +304,7 @@ bool parse(const std::string&, const std::string&, const time_zone&,
// more than four characters, just like %Y.
//
// Tip: Format strings should include the UTC offset (e.g., %z, %Ez, or %E*z)
-// so that the resulting std::string uniquely identifies an absolute time.
+// so that the resulting string uniquely identifies an absolute time.
//
// Example:
// cctz::time_zone lax;
@@ -251,10 +320,10 @@ inline std::string format(const std::string& fmt, const time_point<D>& tp,
return detail::format(fmt, p.first, n, tz);
}
-// Parses an input std::string according to the provided format std::string and
+// Parses an input string according to the provided format string and
// returns the corresponding time_point. Uses strftime()-like formatting
// options, with the same extensions as cctz::format(), but with the
-// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f. %Ez
+// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f. %Ez
// and %E*z also accept the same inputs.
//
// %Y consumes as many numeric characters as it can, so the matching data
@@ -265,7 +334,7 @@ inline std::string format(const std::string& fmt, const time_point<D>& tp,
//
// "1970-01-01 00:00:00.0 +0000"
//
-// For example, parsing a std::string of "15:45" (%H:%M) will return a time_point
+// For example, parsing a string of "15:45" (%H:%M) will return a time_point
// that represents "1970-01-01 15:45:00.0 +0000".
//
// Note that parse() returns time instants, so it makes most sense to parse
@@ -299,7 +368,7 @@ inline std::string format(const std::string& fmt, const time_point<D>& tp,
template <typename D>
inline bool parse(const std::string& fmt, const std::string& input,
const time_zone& tz, time_point<D>* tpp) {
- time_point<sys_seconds> sec;
+ time_point<seconds> sec;
detail::femtoseconds fs;
const bool b = detail::parse(fmt, input, tz, &sec, &fs);
if (b) {
@@ -312,7 +381,7 @@ inline bool parse(const std::string& fmt, const std::string& input,
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_
diff --git a/absl/time/internal/cctz/include/cctz/zone_info_source.h b/absl/time/internal/cctz/include/cctz/zone_info_source.h
index b72a02cf..b3274e00 100644
--- a/absl/time/internal/cctz/include/cctz/zone_info_source.h
+++ b/absl/time/internal/cctz/include/cctz/zone_info_source.h
@@ -21,7 +21,7 @@
#include <string>
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -32,15 +32,20 @@ class ZoneInfoSource {
virtual std::size_t Read(void* ptr, std::size_t size) = 0; // like fread()
virtual int Skip(std::size_t offset) = 0; // like fseek()
+
+ // Until the zoneinfo data supports versioning information, we provide
+ // a way for a ZoneInfoSource to indicate it out-of-band. The default
+ // implementation returns an empty std::string.
+ virtual std::string Version() const;
};
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz_extension {
@@ -89,7 +94,7 @@ extern ZoneInfoSourceFactory zone_info_source_factory;
} // namespace cctz_extension
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_
diff --git a/absl/time/internal/cctz/src/cctz_benchmark.cc b/absl/time/internal/cctz/src/cctz_benchmark.cc
index f13cb4ee..4498d7d0 100644
--- a/absl/time/internal/cctz/src/cctz_benchmark.cc
+++ b/absl/time/internal/cctz/src/cctz_benchmark.cc
@@ -754,23 +754,21 @@ void BM_Zone_LoadAllTimeZonesCached(benchmark::State& state) {
}
BENCHMARK(BM_Zone_LoadAllTimeZonesCached);
-void BM_Zone_TimeZoneImplGetImplicit(benchmark::State& state) {
+void BM_Zone_TimeZoneEqualityImplicit(benchmark::State& state) {
cctz::time_zone tz; // implicit UTC
- cctz::time_zone::Impl::get(tz);
while (state.KeepRunning()) {
- cctz::time_zone::Impl::get(tz);
+ benchmark::DoNotOptimize(tz == tz);
}
}
-BENCHMARK(BM_Zone_TimeZoneImplGetImplicit);
+BENCHMARK(BM_Zone_TimeZoneEqualityImplicit);
-void BM_Zone_TimeZoneImplGetExplicit(benchmark::State& state) {
+void BM_Zone_TimeZoneEqualityExplicit(benchmark::State& state) {
cctz::time_zone tz = cctz::utc_time_zone(); // explicit UTC
- cctz::time_zone::Impl::get(tz);
while (state.KeepRunning()) {
- cctz::time_zone::Impl::get(tz);
+ benchmark::DoNotOptimize(tz == tz);
}
}
-BENCHMARK(BM_Zone_TimeZoneImplGetExplicit);
+BENCHMARK(BM_Zone_TimeZoneEqualityExplicit);
void BM_Zone_UTCTimeZone(benchmark::State& state) {
cctz::time_zone tz;
@@ -780,13 +778,13 @@ void BM_Zone_UTCTimeZone(benchmark::State& state) {
}
BENCHMARK(BM_Zone_UTCTimeZone);
-// In each "ToDateTime" benchmark we switch between two instants
-// separated by at least one transition in order to defeat any
-// internal caching of previous results (e.g., see local_time_hint_).
+// In each "ToCivil" benchmark we switch between two instants separated
+// by at least one transition in order to defeat any internal caching of
+// previous results (e.g., see local_time_hint_).
//
// The "UTC" variants use UTC instead of the Google/local time zone.
-void BM_Time_ToDateTime_CCTZ(benchmark::State& state) {
+void BM_Time_ToCivil_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = TestTimeZone();
std::chrono::system_clock::time_point tp =
std::chrono::system_clock::from_time_t(1384569027);
@@ -798,9 +796,9 @@ void BM_Time_ToDateTime_CCTZ(benchmark::State& state) {
benchmark::DoNotOptimize(cctz::convert(tp, tz));
}
}
-BENCHMARK(BM_Time_ToDateTime_CCTZ);
+BENCHMARK(BM_Time_ToCivil_CCTZ);
-void BM_Time_ToDateTime_Libc(benchmark::State& state) {
+void BM_Time_ToCivil_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
time_t t = 1384569027;
time_t t2 = 1418962578;
@@ -815,9 +813,9 @@ void BM_Time_ToDateTime_Libc(benchmark::State& state) {
#endif
}
}
-BENCHMARK(BM_Time_ToDateTime_Libc);
+BENCHMARK(BM_Time_ToCivil_Libc);
-void BM_Time_ToDateTimeUTC_CCTZ(benchmark::State& state) {
+void BM_Time_ToCivilUTC_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = cctz::utc_time_zone();
std::chrono::system_clock::time_point tp =
std::chrono::system_clock::from_time_t(1384569027);
@@ -826,9 +824,9 @@ void BM_Time_ToDateTimeUTC_CCTZ(benchmark::State& state) {
benchmark::DoNotOptimize(cctz::convert(tp, tz));
}
}
-BENCHMARK(BM_Time_ToDateTimeUTC_CCTZ);
+BENCHMARK(BM_Time_ToCivilUTC_CCTZ);
-void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) {
+void BM_Time_ToCivilUTC_Libc(benchmark::State& state) {
time_t t = 1384569027;
struct tm tm;
while (state.KeepRunning()) {
@@ -840,16 +838,16 @@ void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) {
#endif
}
}
-BENCHMARK(BM_Time_ToDateTimeUTC_Libc);
+BENCHMARK(BM_Time_ToCivilUTC_Libc);
-// In each "FromDateTime" benchmark we switch between two YMDhms
-// values separated by at least one transition in order to defeat any
-// internal caching of previous results (e.g., see time_local_hint_).
+// In each "FromCivil" benchmark we switch between two YMDhms values
+// separated by at least one transition in order to defeat any internal
+// caching of previous results (e.g., see time_local_hint_).
//
// The "UTC" variants use UTC instead of the Google/local time zone.
// The "Day0" variants require normalization of the day of month.
-void BM_Time_FromDateTime_CCTZ(benchmark::State& state) {
+void BM_Time_FromCivil_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = TestTimeZone();
int i = 0;
while (state.KeepRunning()) {
@@ -862,9 +860,9 @@ void BM_Time_FromDateTime_CCTZ(benchmark::State& state) {
}
}
}
-BENCHMARK(BM_Time_FromDateTime_CCTZ);
+BENCHMARK(BM_Time_FromCivil_CCTZ);
-void BM_Time_FromDateTime_Libc(benchmark::State& state) {
+void BM_Time_FromCivil_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
int i = 0;
while (state.KeepRunning()) {
@@ -888,20 +886,20 @@ void BM_Time_FromDateTime_Libc(benchmark::State& state) {
benchmark::DoNotOptimize(mktime(&tm));
}
}
-BENCHMARK(BM_Time_FromDateTime_Libc);
+BENCHMARK(BM_Time_FromCivil_Libc);
-void BM_Time_FromDateTimeUTC_CCTZ(benchmark::State& state) {
+void BM_Time_FromCivilUTC_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = cctz::utc_time_zone();
while (state.KeepRunning()) {
benchmark::DoNotOptimize(
cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz));
}
}
-BENCHMARK(BM_Time_FromDateTimeUTC_CCTZ);
+BENCHMARK(BM_Time_FromCivilUTC_CCTZ);
-// There is no BM_Time_FromDateTimeUTC_Libc.
+// There is no BM_Time_FromCivilUTC_Libc.
-void BM_Time_FromDateTimeDay0_CCTZ(benchmark::State& state) {
+void BM_Time_FromCivilDay0_CCTZ(benchmark::State& state) {
const cctz::time_zone tz = TestTimeZone();
int i = 0;
while (state.KeepRunning()) {
@@ -914,9 +912,9 @@ void BM_Time_FromDateTimeDay0_CCTZ(benchmark::State& state) {
}
}
}
-BENCHMARK(BM_Time_FromDateTimeDay0_CCTZ);
+BENCHMARK(BM_Time_FromCivilDay0_CCTZ);
-void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
+void BM_Time_FromCivilDay0_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
int i = 0;
while (state.KeepRunning()) {
@@ -940,7 +938,7 @@ void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
benchmark::DoNotOptimize(mktime(&tm));
}
}
-BENCHMARK(BM_Time_FromDateTimeDay0_Libc);
+BENCHMARK(BM_Time_FromCivilDay0_Libc);
const char* const kFormats[] = {
RFC1123_full, // 0
diff --git a/absl/time/internal/cctz/src/civil_time_detail.cc b/absl/time/internal/cctz/src/civil_time_detail.cc
index 92a2e09c..e888066d 100644
--- a/absl/time/internal/cctz/src/civil_time_detail.cc
+++ b/absl/time/internal/cctz/src/civil_time_detail.cc
@@ -19,7 +19,7 @@
#include <sstream>
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
namespace detail {
@@ -88,5 +88,5 @@ std::ostream& operator<<(std::ostream& os, weekday wd) {
} // namespace detail
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/civil_time_test.cc b/absl/time/internal/cctz/src/civil_time_test.cc
index d26c6498..2417a2a9 100644
--- a/absl/time/internal/cctz/src/civil_time_test.cc
+++ b/absl/time/internal/cctz/src/civil_time_test.cc
@@ -23,7 +23,7 @@
#include "gtest/gtest.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -621,7 +621,7 @@ TEST(CivilTime, Relational) {
TEST_RELATIONAL(civil_second(2014, 1, 1, 1, 1, 0),
civil_second(2014, 1, 1, 1, 1, 1));
- // Tests the relational operators of two different CivilTime types.
+ // Tests the relational operators of two different civil-time types.
TEST_RELATIONAL(civil_day(2014, 1, 1), civil_minute(2014, 1, 1, 1, 1));
TEST_RELATIONAL(civil_day(2014, 1, 1), civil_month(2014, 2));
@@ -1047,5 +1047,5 @@ TEST(CivilTime, FirstThursdayInMonth) {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_fixed.cc b/absl/time/internal/cctz/src/time_zone_fixed.cc
index 4b608f68..070abd26 100644
--- a/absl/time/internal/cctz/src/time_zone_fixed.cc
+++ b/absl/time/internal/cctz/src/time_zone_fixed.cc
@@ -15,13 +15,13 @@
#include "time_zone_fixed.h"
#include <algorithm>
+#include <cassert>
#include <chrono>
-#include <cstdio>
#include <cstring>
#include <string>
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -30,8 +30,15 @@ namespace {
// The prefix used for the internal names of fixed-offset zones.
const char kFixedOffsetPrefix[] = "Fixed/UTC";
+const char kDigits[] = "0123456789";
+
+char* Format02d(char* p, int v) {
+ *p++ = kDigits[(v / 10) % 10];
+ *p++ = kDigits[v % 10];
+ return p;
+}
+
int Parse02d(const char* p) {
- static const char kDigits[] = "0123456789";
if (const char* ap = std::strchr(kDigits, *p)) {
int v = static_cast<int>(ap - kDigits);
if (const char* bp = std::strchr(kDigits, *++p)) {
@@ -43,9 +50,9 @@ int Parse02d(const char* p) {
} // namespace
-bool FixedOffsetFromName(const std::string& name, sys_seconds* offset) {
+bool FixedOffsetFromName(const std::string& name, seconds* offset) {
if (name.compare(0, std::string::npos, "UTC", 3) == 0) {
- *offset = sys_seconds::zero();
+ *offset = seconds::zero();
return true;
}
@@ -70,12 +77,12 @@ bool FixedOffsetFromName(const std::string& name, sys_seconds* offset) {
secs += ((hours * 60) + mins) * 60;
if (secs > 24 * 60 * 60) return false; // outside supported offset range
- *offset = sys_seconds(secs * (np[0] == '-' ? -1 : 1)); // "-" means west
+ *offset = seconds(secs * (np[0] == '-' ? -1 : 1)); // "-" means west
return true;
}
-std::string FixedOffsetToName(const sys_seconds& offset) {
- if (offset == sys_seconds::zero()) return "UTC";
+std::string FixedOffsetToName(const seconds& offset) {
+ if (offset == seconds::zero()) return "UTC";
if (offset < std::chrono::hours(-24) || offset > std::chrono::hours(24)) {
// We don't support fixed-offset zones more than 24 hours
// away from UTC to avoid complications in rendering such
@@ -96,13 +103,21 @@ std::string FixedOffsetToName(const sys_seconds& offset) {
}
int hours = minutes / 60;
minutes %= 60;
- char buf[sizeof(kFixedOffsetPrefix) + sizeof("-24:00:00")];
- snprintf(buf, sizeof(buf), "%s%c%02d:%02d:%02d",
- kFixedOffsetPrefix, sign, hours, minutes, seconds);
+ char buf[sizeof(kFixedOffsetPrefix) - 1 + sizeof("-24:00:00")];
+ std::strcpy(buf, kFixedOffsetPrefix);
+ char* ep = buf + sizeof(kFixedOffsetPrefix) - 1;
+ *ep++ = sign;
+ ep = Format02d(ep, hours);
+ *ep++ = ':';
+ ep = Format02d(ep, minutes);
+ *ep++ = ':';
+ ep = Format02d(ep, seconds);
+ *ep++ = '\0';
+ assert(ep == buf + sizeof(buf));
return buf;
}
-std::string FixedOffsetToAbbr(const sys_seconds& offset) {
+std::string FixedOffsetToAbbr(const seconds& offset) {
std::string abbr = FixedOffsetToName(offset);
const std::size_t prefix_len = sizeof(kFixedOffsetPrefix) - 1;
if (abbr.size() == prefix_len + 9) { // <prefix>+99:99:99
@@ -121,5 +136,5 @@ std::string FixedOffsetToAbbr(const sys_seconds& offset) {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_fixed.h b/absl/time/internal/cctz/src/time_zone_fixed.h
index 15e9db1e..dbb2958e 100644
--- a/absl/time/internal/cctz/src/time_zone_fixed.h
+++ b/absl/time/internal/cctz/src/time_zone_fixed.h
@@ -20,7 +20,7 @@
#include "absl/time/internal/cctz/include/cctz/time_zone.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -39,13 +39,13 @@ namespace cctz {
// Note: FixedOffsetFromName() fails on syntax errors or when the parsed
// offset exceeds 24 hours. FixedOffsetToName() and FixedOffsetToAbbr()
// both produce "UTC" when the argument offset exceeds 24 hours.
-bool FixedOffsetFromName(const std::string& name, sys_seconds* offset);
-std::string FixedOffsetToName(const sys_seconds& offset);
-std::string FixedOffsetToAbbr(const sys_seconds& offset);
+bool FixedOffsetFromName(const std::string& name, seconds* offset);
+std::string FixedOffsetToName(const seconds& offset);
+std::string FixedOffsetToAbbr(const seconds& offset);
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_
diff --git a/absl/time/internal/cctz/src/time_zone_format.cc b/absl/time/internal/cctz/src/time_zone_format.cc
index 0efbbc79..02ecb2cf 100644
--- a/absl/time/internal/cctz/src/time_zone_format.cc
+++ b/absl/time/internal/cctz/src/time_zone_format.cc
@@ -38,7 +38,7 @@
#include "time_zone_if.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
namespace detail {
@@ -142,6 +142,9 @@ char* Format02d(char* ep, int v) {
// Formats a UTC offset, like +00:00.
char* FormatOffset(char* ep, int offset, const char* mode) {
+ // TODO: Follow the RFC3339 "Unknown Local Offset Convention" and
+ // generate a "negative zero" when we're formatting a zero offset
+ // as the result of a failed load_time_zone().
char sign = '+';
if (offset < 0) {
offset = -offset; // bounded by 24h so no overflow
@@ -278,7 +281,7 @@ const std::int_fast64_t kExp10[kDigits10_64 + 1] = {
// not support the tm_gmtoff and tm_zone extensions to std::tm.
//
// Requires that zero() <= fs < seconds(1).
-std::string format(const std::string& format, const time_point<sys_seconds>& tp,
+std::string format(const std::string& format, const time_point<seconds>& tp,
const detail::femtoseconds& fs, const time_zone& tz) {
std::string result;
result.reserve(format.size()); // A reasonable guess for the result size.
@@ -531,7 +534,7 @@ const char* ParseSubSeconds(const char* dp, detail::femtoseconds* subseconds) {
return dp;
}
-// Parses a std::string into a std::tm using strptime(3).
+// Parses a string into a std::tm using strptime(3).
const char* ParseTM(const char* dp, const char* fmt, std::tm* tm) {
if (dp != nullptr) {
dp = strptime(dp, fmt, tm);
@@ -556,7 +559,7 @@ const char* ParseTM(const char* dp, const char* fmt, std::tm* tm) {
// We also handle the %z specifier to accommodate platforms that do not
// support the tm_gmtoff extension to std::tm. %Z is parsed but ignored.
bool parse(const std::string& format, const std::string& input,
- const time_zone& tz, time_point<sys_seconds>* sec,
+ const time_zone& tz, time_point<seconds>* sec,
detail::femtoseconds* fs, std::string* err) {
// The unparsed input.
const char* data = input.c_str(); // NUL terminated
@@ -741,7 +744,7 @@ bool parse(const std::string& format, const std::string& input,
data = ParseTM(data, spec.c_str(), &tm);
// If we successfully parsed %p we need to remember whether the result
- // was AM or PM so that we can adjust tm_hour before ConvertDateTime().
+ // was AM or PM so that we can adjust tm_hour before time_zone::lookup().
// So reparse the input with a known AM hour, and check if it is shifted
// to a PM hour.
if (spec == "%p" && data != nullptr) {
@@ -823,15 +826,15 @@ bool parse(const std::string& format, const std::string& input,
const auto tp = ptz.lookup(cs).pre;
// Checks for overflow/underflow and returns an error as necessary.
- if (tp == time_point<sys_seconds>::max()) {
- const auto al = ptz.lookup(time_point<sys_seconds>::max());
+ if (tp == time_point<seconds>::max()) {
+ const auto al = ptz.lookup(time_point<seconds>::max());
if (cs > al.cs) {
if (err != nullptr) *err = "Out-of-range field";
return false;
}
}
- if (tp == time_point<sys_seconds>::min()) {
- const auto al = ptz.lookup(time_point<sys_seconds>::min());
+ if (tp == time_point<seconds>::min()) {
+ const auto al = ptz.lookup(time_point<seconds>::min());
if (cs < al.cs) {
if (err != nullptr) *err = "Out-of-range field";
return false;
@@ -846,5 +849,5 @@ bool parse(const std::string& format, const std::string& input,
} // namespace detail
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_format_test.cc b/absl/time/internal/cctz/src/time_zone_format_test.cc
index 649e9b9a..260c56ad 100644
--- a/absl/time/internal/cctz/src/time_zone_format_test.cc
+++ b/absl/time/internal/cctz/src/time_zone_format_test.cc
@@ -23,18 +23,10 @@
#include "gmock/gmock.h"
#include "gtest/gtest.h"
-using std::chrono::time_point_cast;
-using std::chrono::system_clock;
-using std::chrono::nanoseconds;
-using std::chrono::microseconds;
-using std::chrono::milliseconds;
-using std::chrono::seconds;
-using std::chrono::minutes;
-using std::chrono::hours;
-using testing::HasSubstr;
+namespace chrono = std::chrono;
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -73,6 +65,17 @@ void TestFormatSpecifier(time_point<D> tp, time_zone tz, const std::string& fmt,
EXPECT_EQ("xxx " + ans + " yyy", format("xxx " + fmt + " yyy", tp, tz));
}
+// These tests sometimes run on platforms that have zoneinfo data so old
+// that the transition we are attempting to check does not exist, most
+// notably Android emulators. Fortunately, AndroidZoneInfoSource supports
+// time_zone::version() so, in cases where we've learned that it matters,
+// we can make the check conditionally.
+int VersionCmp(time_zone tz, const std::string& target) {
+ std::string version = tz.version();
+ if (version.empty() && !target.empty()) return 1; // unknown > known
+ return version.compare(target);
+}
+
} // namespace
//
@@ -82,33 +85,36 @@ void TestFormatSpecifier(time_point<D> tp, time_zone tz, const std::string& fmt,
TEST(Format, TimePointResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
- const time_point<nanoseconds> t0 = system_clock::from_time_t(1420167845) +
- milliseconds(123) + microseconds(456) +
- nanoseconds(789);
- EXPECT_EQ("03:04:05.123456789",
- format(kFmt, time_point_cast<nanoseconds>(t0), utc));
- EXPECT_EQ("03:04:05.123456",
- format(kFmt, time_point_cast<microseconds>(t0), utc));
- EXPECT_EQ("03:04:05.123",
- format(kFmt, time_point_cast<milliseconds>(t0), utc));
+ const time_point<chrono::nanoseconds> t0 =
+ chrono::system_clock::from_time_t(1420167845) +
+ chrono::milliseconds(123) + chrono::microseconds(456) +
+ chrono::nanoseconds(789);
+ EXPECT_EQ(
+ "03:04:05.123456789",
+ format(kFmt, chrono::time_point_cast<chrono::nanoseconds>(t0), utc));
+ EXPECT_EQ(
+ "03:04:05.123456",
+ format(kFmt, chrono::time_point_cast<chrono::microseconds>(t0), utc));
+ EXPECT_EQ(
+ "03:04:05.123",
+ format(kFmt, chrono::time_point_cast<chrono::milliseconds>(t0), utc));
EXPECT_EQ("03:04:05",
- format(kFmt, time_point_cast<seconds>(t0), utc));
+ format(kFmt, chrono::time_point_cast<chrono::seconds>(t0), utc));
EXPECT_EQ("03:04:05",
- format(kFmt, time_point_cast<sys_seconds>(t0), utc));
+ format(kFmt, chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), utc));
EXPECT_EQ("03:04:00",
- format(kFmt, time_point_cast<minutes>(t0), utc));
+ format(kFmt, chrono::time_point_cast<chrono::minutes>(t0), utc));
EXPECT_EQ("03:00:00",
- format(kFmt, time_point_cast<hours>(t0), utc));
+ format(kFmt, chrono::time_point_cast<chrono::hours>(t0), utc));
}
TEST(Format, TimePointExtendedResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
- const time_point<sys_seconds> tp =
- std::chrono::time_point_cast<sys_seconds>(
- std::chrono::system_clock::from_time_t(0)) +
- std::chrono::hours(12) + std::chrono::minutes(34) +
- std::chrono::seconds(56);
+ const time_point<absl::time_internal::cctz::seconds> tp =
+ chrono::time_point_cast<absl::time_internal::cctz::seconds>(
+ chrono::system_clock::from_time_t(0)) +
+ chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56);
EXPECT_EQ(
"12:34:56.123456789012345",
@@ -133,7 +139,7 @@ TEST(Format, TimePointExtendedResolution) {
TEST(Format, Basics) {
time_zone tz = utc_time_zone();
- time_point<nanoseconds> tp = system_clock::from_time_t(0);
+ time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
// Starts with a couple basic edge cases.
EXPECT_EQ("", format("", tp, tz));
@@ -146,8 +152,9 @@ TEST(Format, Basics) {
std::string bigger(100000, 'x');
EXPECT_EQ(bigger, format(bigger, tp, tz));
- tp += hours(13) + minutes(4) + seconds(5);
- tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
+ tp += chrono::hours(13) + chrono::minutes(4) + chrono::seconds(5);
+ tp += chrono::milliseconds(6) + chrono::microseconds(7) +
+ chrono::nanoseconds(8);
EXPECT_EQ("1970-01-01", format("%Y-%m-%d", tp, tz));
EXPECT_EQ("13:04:05", format("%H:%M:%S", tp, tz));
EXPECT_EQ("13:04:05.006", format("%H:%M:%E3S", tp, tz));
@@ -157,7 +164,7 @@ TEST(Format, Basics) {
TEST(Format, PosixConversions) {
const time_zone tz = utc_time_zone();
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
TestFormatSpecifier(tp, tz, "%d", "01");
TestFormatSpecifier(tp, tz, "%e", " 1"); // extension but internal support
@@ -197,7 +204,7 @@ TEST(Format, PosixConversions) {
TEST(Format, LocaleSpecific) {
const time_zone tz = utc_time_zone();
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
TestFormatSpecifier(tp, tz, "%a", "Thu");
TestFormatSpecifier(tp, tz, "%A", "Thursday");
@@ -206,8 +213,8 @@ TEST(Format, LocaleSpecific) {
// %c should at least produce the numeric year and time-of-day.
const std::string s = format("%c", tp, utc_time_zone());
- EXPECT_THAT(s, HasSubstr("1970"));
- EXPECT_THAT(s, HasSubstr("00:00:00"));
+ EXPECT_THAT(s, testing::HasSubstr("1970"));
+ EXPECT_THAT(s, testing::HasSubstr("00:00:00"));
TestFormatSpecifier(tp, tz, "%p", "AM");
TestFormatSpecifier(tp, tz, "%x", "01/01/70");
@@ -246,7 +253,7 @@ TEST(Format, LocaleSpecific) {
TEST(Format, Escaping) {
const time_zone tz = utc_time_zone();
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
TestFormatSpecifier(tp, tz, "%%", "%");
TestFormatSpecifier(tp, tz, "%%a", "%a");
@@ -267,8 +274,8 @@ TEST(Format, ExtendedSeconds) {
const time_zone tz = utc_time_zone();
// No subseconds.
- time_point<nanoseconds> tp = system_clock::from_time_t(0);
- tp += seconds(5);
+ time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
+ tp += chrono::seconds(5);
EXPECT_EQ("05", format("%E*S", tp, tz));
EXPECT_EQ("05", format("%E0S", tp, tz));
EXPECT_EQ("05.0", format("%E1S", tp, tz));
@@ -288,7 +295,8 @@ TEST(Format, ExtendedSeconds) {
EXPECT_EQ("05.000000000000000", format("%E15S", tp, tz));
// With subseconds.
- tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
+ tp += chrono::milliseconds(6) + chrono::microseconds(7) +
+ chrono::nanoseconds(8);
EXPECT_EQ("05.006007008", format("%E*S", tp, tz));
EXPECT_EQ("05", format("%E0S", tp, tz));
EXPECT_EQ("05.0", format("%E1S", tp, tz));
@@ -308,17 +316,18 @@ TEST(Format, ExtendedSeconds) {
EXPECT_EQ("05.006007008000000", format("%E15S", tp, tz));
// Times before the Unix epoch.
- tp = system_clock::from_time_t(0) + microseconds(-1);
+ tp = chrono::system_clock::from_time_t(0) + chrono::microseconds(-1);
EXPECT_EQ("1969-12-31 23:59:59.999999",
format("%Y-%m-%d %H:%M:%E*S", tp, tz));
// Here is a "%E*S" case we got wrong for a while. While the first
// instant below is correctly rendered as "...:07.333304", the second
// one used to appear as "...:07.33330499999999999".
- tp = system_clock::from_time_t(0) + microseconds(1395024427333304);
+ tp = chrono::system_clock::from_time_t(0) +
+ chrono::microseconds(1395024427333304);
EXPECT_EQ("2014-03-17 02:47:07.333304",
format("%Y-%m-%d %H:%M:%E*S", tp, tz));
- tp += microseconds(1);
+ tp += chrono::microseconds(1);
EXPECT_EQ("2014-03-17 02:47:07.333305",
format("%Y-%m-%d %H:%M:%E*S", tp, tz));
}
@@ -327,8 +336,8 @@ TEST(Format, ExtendedSubeconds) {
const time_zone tz = utc_time_zone();
// No subseconds.
- time_point<nanoseconds> tp = system_clock::from_time_t(0);
- tp += seconds(5);
+ time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
+ tp += chrono::seconds(5);
EXPECT_EQ("0", format("%E*f", tp, tz));
EXPECT_EQ("", format("%E0f", tp, tz));
EXPECT_EQ("0", format("%E1f", tp, tz));
@@ -348,7 +357,8 @@ TEST(Format, ExtendedSubeconds) {
EXPECT_EQ("000000000000000", format("%E15f", tp, tz));
// With subseconds.
- tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
+ tp += chrono::milliseconds(6) + chrono::microseconds(7) +
+ chrono::nanoseconds(8);
EXPECT_EQ("006007008", format("%E*f", tp, tz));
EXPECT_EQ("", format("%E0f", tp, tz));
EXPECT_EQ("0", format("%E1f", tp, tz));
@@ -368,17 +378,18 @@ TEST(Format, ExtendedSubeconds) {
EXPECT_EQ("006007008000000", format("%E15f", tp, tz));
// Times before the Unix epoch.
- tp = system_clock::from_time_t(0) + microseconds(-1);
+ tp = chrono::system_clock::from_time_t(0) + chrono::microseconds(-1);
EXPECT_EQ("1969-12-31 23:59:59.999999",
format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
// Here is a "%E*S" case we got wrong for a while. While the first
// instant below is correctly rendered as "...:07.333304", the second
// one used to appear as "...:07.33330499999999999".
- tp = system_clock::from_time_t(0) + microseconds(1395024427333304);
+ tp = chrono::system_clock::from_time_t(0) +
+ chrono::microseconds(1395024427333304);
EXPECT_EQ("2014-03-17 02:47:07.333304",
format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
- tp += microseconds(1);
+ tp += chrono::microseconds(1);
EXPECT_EQ("2014-03-17 02:47:07.333305",
format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
}
@@ -393,8 +404,8 @@ TEST(Format, CompareExtendSecondsVsSubseconds) {
auto fmt_B = [](const std::string& prec) { return "%S.%E" + prec + "f"; };
// No subseconds:
- time_point<nanoseconds> tp = system_clock::from_time_t(0);
- tp += seconds(5);
+ time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
+ tp += chrono::seconds(5);
// ... %E*S and %S.%E*f are different.
EXPECT_EQ("05", format(fmt_A("*"), tp, tz));
EXPECT_EQ("05.0", format(fmt_B("*"), tp, tz));
@@ -410,7 +421,8 @@ TEST(Format, CompareExtendSecondsVsSubseconds) {
// With subseconds:
// ... %E*S and %S.%E*f are the same.
- tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
+ tp += chrono::milliseconds(6) + chrono::microseconds(7) +
+ chrono::nanoseconds(8);
EXPECT_EQ("05.006007008", format(fmt_A("*"), tp, tz));
EXPECT_EQ("05.006007008", format(fmt_B("*"), tp, tz));
// ... %E0S and %S.%E0f are different.
@@ -425,7 +437,7 @@ TEST(Format, CompareExtendSecondsVsSubseconds) {
}
TEST(Format, ExtendedOffset) {
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
time_zone tz = utc_time_zone();
TestFormatSpecifier(tp, tz, "%Ez", "+00:00");
@@ -447,30 +459,28 @@ TEST(Format, ExtendedOffset) {
TEST(Format, ExtendedSecondOffset) {
const time_zone utc = utc_time_zone();
- time_point<seconds> tp;
+ time_point<chrono::seconds> tp;
time_zone tz;
EXPECT_TRUE(load_time_zone("America/New_York", &tz));
tp = convert(civil_second(1883, 11, 18, 16, 59, 59), utc);
if (tz.lookup(tp).offset == -5 * 60 * 60) {
- // We're likely dealing with zoneinfo that doesn't support really old
- // timestamps, so America/New_York never looks to be on local mean time.
+ // It looks like the tzdata is only 32 bit (probably macOS),
+ // which bottoms out at 1901-12-13T20:45:52+00:00.
} else {
TestFormatSpecifier(tp, tz, "%E*z", "-04:56:02");
TestFormatSpecifier(tp, tz, "%Ez", "-04:56");
}
- tp += seconds(1);
+ tp += chrono::seconds(1);
TestFormatSpecifier(tp, tz, "%E*z", "-05:00:00");
EXPECT_TRUE(load_time_zone("Europe/Moscow", &tz));
tp = convert(civil_second(1919, 6, 30, 23, 59, 59), utc);
-#if defined(__ANDROID__) && __ANDROID_API__ < 25
- // Only Android 'N'.1 and beyond have this tz2016g transition.
-#else
- TestFormatSpecifier(tp, tz, "%E*z", "+04:31:19");
- TestFormatSpecifier(tp, tz, "%Ez", "+04:31");
-#endif
- tp += seconds(1);
+ if (VersionCmp(tz, "2016g") >= 0) {
+ TestFormatSpecifier(tp, tz, "%E*z", "+04:31:19");
+ TestFormatSpecifier(tp, tz, "%Ez", "+04:31");
+ }
+ tp += chrono::seconds(1);
TestFormatSpecifier(tp, tz, "%E*z", "+04:00:00");
}
@@ -511,44 +521,44 @@ TEST(Format, RFC3339Format) {
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
- time_point<nanoseconds> tp =
+ time_point<chrono::nanoseconds> tp =
convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += milliseconds(100);
+ tp += chrono::milliseconds(100);
EXPECT_EQ("1977-06-28T09:08:07.1-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += milliseconds(20);
+ tp += chrono::milliseconds(20);
EXPECT_EQ("1977-06-28T09:08:07.12-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += milliseconds(3);
+ tp += chrono::milliseconds(3);
EXPECT_EQ("1977-06-28T09:08:07.123-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += microseconds(400);
+ tp += chrono::microseconds(400);
EXPECT_EQ("1977-06-28T09:08:07.1234-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += microseconds(50);
+ tp += chrono::microseconds(50);
EXPECT_EQ("1977-06-28T09:08:07.12345-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += microseconds(6);
+ tp += chrono::microseconds(6);
EXPECT_EQ("1977-06-28T09:08:07.123456-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += nanoseconds(700);
+ tp += chrono::nanoseconds(700);
EXPECT_EQ("1977-06-28T09:08:07.1234567-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += nanoseconds(80);
+ tp += chrono::nanoseconds(80);
EXPECT_EQ("1977-06-28T09:08:07.12345678-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
- tp += nanoseconds(9);
+ tp += chrono::nanoseconds(9);
EXPECT_EQ("1977-06-28T09:08:07.123456789-07:00",
format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
@@ -571,13 +581,13 @@ TEST(Parse, TimePointResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
- time_point<nanoseconds> tp_ns;
+ time_point<chrono::nanoseconds> tp_ns;
EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_ns));
EXPECT_EQ("03:04:05.123456789", format(kFmt, tp_ns, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ns));
EXPECT_EQ("03:04:05.123456", format(kFmt, tp_ns, utc));
- time_point<microseconds> tp_us;
+ time_point<chrono::microseconds> tp_us;
EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_us));
EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_us));
@@ -585,7 +595,7 @@ TEST(Parse, TimePointResolution) {
EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_us));
EXPECT_EQ("03:04:05.123", format(kFmt, tp_us, utc));
- time_point<milliseconds> tp_ms;
+ time_point<chrono::milliseconds> tp_ms;
EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ms));
EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_ms));
@@ -593,17 +603,17 @@ TEST(Parse, TimePointResolution) {
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_ms));
EXPECT_EQ("03:04:05", format(kFmt, tp_ms, utc));
- time_point<seconds> tp_s;
+ time_point<chrono::seconds> tp_s;
EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_s));
EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_s));
EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc));
- time_point<minutes> tp_m;
+ time_point<chrono::minutes> tp_m;
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_m));
EXPECT_EQ("03:04:00", format(kFmt, tp_m, utc));
- time_point<hours> tp_h;
+ time_point<chrono::hours> tp_h;
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_h));
EXPECT_EQ("03:00:00", format(kFmt, tp_h, utc));
}
@@ -612,7 +622,7 @@ TEST(Parse, TimePointExtendedResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
- time_point<sys_seconds> tp;
+ time_point<absl::time_internal::cctz::seconds> tp;
detail::femtoseconds fs;
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.123456789012345", utc, &tp, &fs));
EXPECT_EQ("12:34:56.123456789012345", detail::format(kFmt, tp, fs, utc));
@@ -630,11 +640,12 @@ TEST(Parse, TimePointExtendedResolution) {
TEST(Parse, Basics) {
time_zone tz = utc_time_zone();
- time_point<nanoseconds> tp = system_clock::from_time_t(1234567890);
+ time_point<chrono::nanoseconds> tp =
+ chrono::system_clock::from_time_t(1234567890);
// Simple edge cases.
EXPECT_TRUE(parse("", "", tz, &tp));
- EXPECT_EQ(system_clock::from_time_t(0), tp); // everything defaulted
+ EXPECT_EQ(chrono::system_clock::from_time_t(0), tp); // everything defaulted
EXPECT_TRUE(parse(" ", " ", tz, &tp));
EXPECT_TRUE(parse(" ", " ", tz, &tp));
EXPECT_TRUE(parse("x", "x", tz, &tp));
@@ -648,7 +659,7 @@ TEST(Parse, Basics) {
TEST(Parse, WithTimeZone) {
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
- time_point<nanoseconds> tp;
+ time_point<chrono::nanoseconds> tp;
// We can parse a std::string without a UTC offset if we supply a timezone.
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &tp));
@@ -659,13 +670,13 @@ TEST(Parse, WithTimeZone) {
utc_time_zone(), &tp));
ExpectTime(tp, tz, 2013, 6, 28, 19 - 8 - 7, 8, 9, -7 * 60 * 60, true, "PDT");
- // Check a skipped time (a Spring DST transition). parse() returns
- // the preferred-offset result, as defined for ConvertDateTime().
+ // Check a skipped time (a Spring DST transition). parse() uses the
+ // pre-transition offset.
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-03-13 02:15:00", tz, &tp));
ExpectTime(tp, tz, 2011, 3, 13, 3, 15, 0, -7 * 60 * 60, true, "PDT");
- // Check a repeated time (a Fall DST transition). parse() returns
- // the preferred-offset result, as defined for ConvertDateTime().
+ // Check a repeated time (a Fall DST transition). parse() uses the
+ // pre-transition offset.
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-11-06 01:15:00", tz, &tp));
ExpectTime(tp, tz, 2011, 11, 6, 1, 15, 0, -7 * 60 * 60, true, "PDT");
}
@@ -673,7 +684,7 @@ TEST(Parse, WithTimeZone) {
TEST(Parse, LeapSecond) {
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
- time_point<nanoseconds> tp;
+ time_point<chrono::nanoseconds> tp;
// ":59" -> ":59"
EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59-08:00", tz, &tp));
@@ -697,7 +708,7 @@ TEST(Parse, LeapSecond) {
TEST(Parse, ErrorCases) {
const time_zone tz = utc_time_zone();
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
// Illegal trailing data.
EXPECT_FALSE(parse("%S", "123", tz, &tp));
@@ -740,7 +751,7 @@ TEST(Parse, ErrorCases) {
TEST(Parse, PosixConversions) {
time_zone tz = utc_time_zone();
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
tp = reset;
@@ -829,14 +840,14 @@ TEST(Parse, PosixConversions) {
tp = reset;
EXPECT_TRUE(parse("%s", "1234567890", tz, &tp));
- EXPECT_EQ(system_clock::from_time_t(1234567890), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp);
// %s conversion, like %z/%Ez, pays no heed to the optional zone.
time_zone lax;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax));
tp = reset;
EXPECT_TRUE(parse("%s", "1234567890", lax, &tp));
- EXPECT_EQ(system_clock::from_time_t(1234567890), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp);
// This is most important when the time has the same YMDhms
// breakdown in the zone as some other time. For example, ...
@@ -844,16 +855,16 @@ TEST(Parse, PosixConversions) {
// 1414920600 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PST)
tp = reset;
EXPECT_TRUE(parse("%s", "1414917000", lax, &tp));
- EXPECT_EQ(system_clock::from_time_t(1414917000), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(1414917000), tp);
tp = reset;
EXPECT_TRUE(parse("%s", "1414920600", lax, &tp));
- EXPECT_EQ(system_clock::from_time_t(1414920600), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(1414920600), tp);
#endif
}
TEST(Parse, LocaleSpecific) {
time_zone tz = utc_time_zone();
- auto tp = system_clock::from_time_t(0);
+ auto tp = chrono::system_clock::from_time_t(0);
const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
// %a is parsed but ignored.
@@ -984,7 +995,8 @@ TEST(Parse, LocaleSpecific) {
TEST(Parse, ExtendedSeconds) {
const time_zone tz = utc_time_zone();
- const time_point<nanoseconds> unix_epoch = system_clock::from_time_t(0);
+ const time_point<chrono::nanoseconds> unix_epoch =
+ chrono::system_clock::from_time_t(0);
// All %E<prec>S cases are treated the same as %E*S on input.
auto precisions = {"*", "0", "1", "2", "3", "4", "5", "6", "7",
@@ -992,47 +1004,47 @@ TEST(Parse, ExtendedSeconds) {
for (const std::string& prec : precisions) {
const std::string fmt = "%E" + prec + "S";
SCOPED_TRACE(fmt);
- time_point<nanoseconds> tp = unix_epoch;
+ time_point<chrono::nanoseconds> tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "5", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.0", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.00", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.6", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5) + milliseconds(600), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.60", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5) + milliseconds(600), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.600", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5) + milliseconds(600), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.67", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5) + milliseconds(670), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(670), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.670", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5) + milliseconds(670), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(670), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.678", tz, &tp));
- EXPECT_EQ(unix_epoch + seconds(5) + milliseconds(678), tp);
+ EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(678), tp);
}
// Here is a "%E*S" case we got wrong for a while. The fractional
// part of the first instant is less than 2^31 and was correctly
// parsed, while the second (and any subsecond field >=2^31) failed.
- time_point<nanoseconds> tp = unix_epoch;
+ time_point<chrono::nanoseconds> tp = unix_epoch;
EXPECT_TRUE(parse("%E*S", "0.2147483647", tz, &tp));
- EXPECT_EQ(unix_epoch + nanoseconds(214748364), tp);
+ EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
tp = unix_epoch;
EXPECT_TRUE(parse("%E*S", "0.2147483648", tz, &tp));
- EXPECT_EQ(unix_epoch + nanoseconds(214748364), tp);
+ EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
// We should also be able to specify long strings of digits far
// beyond the current resolution and have them convert the same way.
@@ -1040,18 +1052,18 @@ TEST(Parse, ExtendedSeconds) {
EXPECT_TRUE(parse(
"%E*S", "0.214748364801234567890123456789012345678901234567890123456789",
tz, &tp));
- EXPECT_EQ(unix_epoch + nanoseconds(214748364), tp);
+ EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
}
TEST(Parse, ExtendedSecondsScan) {
const time_zone tz = utc_time_zone();
- time_point<nanoseconds> tp;
+ time_point<chrono::nanoseconds> tp;
for (int ms = 0; ms < 1000; ms += 111) {
for (int us = 0; us < 1000; us += 27) {
const int micros = ms * 1000 + us;
for (int ns = 0; ns < 1000; ns += 9) {
- const auto expected =
- system_clock::from_time_t(0) + nanoseconds(micros * 1000 + ns);
+ const auto expected = chrono::system_clock::from_time_t(0) +
+ chrono::nanoseconds(micros * 1000 + ns);
std::ostringstream oss;
oss << "0." << std::setfill('0') << std::setw(3);
oss << ms << std::setw(3) << us << std::setw(3) << ns;
@@ -1065,7 +1077,8 @@ TEST(Parse, ExtendedSecondsScan) {
TEST(Parse, ExtendedSubeconds) {
const time_zone tz = utc_time_zone();
- const time_point<nanoseconds> unix_epoch = system_clock::from_time_t(0);
+ const time_point<chrono::nanoseconds> unix_epoch =
+ chrono::system_clock::from_time_t(0);
// All %E<prec>f cases are treated the same as %E*f on input.
auto precisions = {"*", "0", "1", "2", "3", "4", "5", "6", "7",
@@ -1073,41 +1086,42 @@ TEST(Parse, ExtendedSubeconds) {
for (const std::string& prec : precisions) {
const std::string fmt = "%E" + prec + "f";
SCOPED_TRACE(fmt);
- time_point<nanoseconds> tp = unix_epoch - seconds(1);
+ time_point<chrono::nanoseconds> tp = unix_epoch - chrono::seconds(1);
EXPECT_TRUE(parse(fmt, "", tz, &tp));
EXPECT_EQ(unix_epoch, tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "6", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(600), tp);
+ EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "60", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(600), tp);
+ EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "600", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(600), tp);
+ EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "67", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(670), tp);
+ EXPECT_EQ(unix_epoch + chrono::milliseconds(670), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "670", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(670), tp);
+ EXPECT_EQ(unix_epoch + chrono::milliseconds(670), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "678", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(678), tp);
+ EXPECT_EQ(unix_epoch + chrono::milliseconds(678), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "6789", tz, &tp));
- EXPECT_EQ(unix_epoch + milliseconds(678) + microseconds(900), tp);
+ EXPECT_EQ(
+ unix_epoch + chrono::milliseconds(678) + chrono::microseconds(900), tp);
}
// Here is a "%E*f" case we got wrong for a while. The fractional
// part of the first instant is less than 2^31 and was correctly
// parsed, while the second (and any subsecond field >=2^31) failed.
- time_point<nanoseconds> tp = unix_epoch;
+ time_point<chrono::nanoseconds> tp = unix_epoch;
EXPECT_TRUE(parse("%E*f", "2147483647", tz, &tp));
- EXPECT_EQ(unix_epoch + nanoseconds(214748364), tp);
+ EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
tp = unix_epoch;
EXPECT_TRUE(parse("%E*f", "2147483648", tz, &tp));
- EXPECT_EQ(unix_epoch + nanoseconds(214748364), tp);
+ EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
// We should also be able to specify long strings of digits far
// beyond the current resolution and have them convert the same way.
@@ -1115,11 +1129,11 @@ TEST(Parse, ExtendedSubeconds) {
EXPECT_TRUE(parse(
"%E*f", "214748364801234567890123456789012345678901234567890123456789",
tz, &tp));
- EXPECT_EQ(unix_epoch + nanoseconds(214748364), tp);
+ EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
}
TEST(Parse, ExtendedSubecondsScan) {
- time_point<nanoseconds> tp;
+ time_point<chrono::nanoseconds> tp;
const time_zone tz = utc_time_zone();
for (int ms = 0; ms < 1000; ms += 111) {
for (int us = 0; us < 1000; us += 27) {
@@ -1129,14 +1143,14 @@ TEST(Parse, ExtendedSubecondsScan) {
oss << std::setfill('0') << std::setw(3) << ms;
oss << std::setw(3) << us << std::setw(3) << ns;
const std::string nanos = oss.str();
- const auto expected =
- system_clock::from_time_t(0) + nanoseconds(micros * 1000 + ns);
+ const auto expected = chrono::system_clock::from_time_t(0) +
+ chrono::nanoseconds(micros * 1000 + ns);
for (int ps = 0; ps < 1000; ps += 250) {
std::ostringstream oss;
oss << std::setfill('0') << std::setw(3) << ps;
const std::string input = nanos + oss.str() + "999";
EXPECT_TRUE(parse("%E*f", input, tz, &tp));
- EXPECT_EQ(expected + nanoseconds(ps) / 1000, tp) << input;
+ EXPECT_EQ(expected + chrono::nanoseconds(ps) / 1000, tp) << input;
}
}
}
@@ -1145,7 +1159,7 @@ TEST(Parse, ExtendedSubecondsScan) {
TEST(Parse, ExtendedOffset) {
const time_zone utc = utc_time_zone();
- time_point<sys_seconds> tp;
+ time_point<absl::time_internal::cctz::seconds> tp;
// %z against +-HHMM.
EXPECT_TRUE(parse("%z", "+0000", utc, &tp));
@@ -1195,7 +1209,7 @@ TEST(Parse, ExtendedOffset) {
TEST(Parse, ExtendedSecondOffset) {
const time_zone utc = utc_time_zone();
- time_point<sys_seconds> tp;
+ time_point<absl::time_internal::cctz::seconds> tp;
// %Ez against +-HH:MM:SS.
EXPECT_TRUE(parse("%Ez", "+00:00:00", utc, &tp));
@@ -1264,7 +1278,7 @@ TEST(Parse, ExtendedSecondOffset) {
TEST(Parse, ExtendedYears) {
const time_zone utc = utc_time_zone();
const char e4y_fmt[] = "%E4Y%m%d"; // no separators
- time_point<sys_seconds> tp;
+ time_point<absl::time_internal::cctz::seconds> tp;
// %E4Y consumes exactly four chars, including any sign.
EXPECT_TRUE(parse(e4y_fmt, "-9991127", utc, &tp));
@@ -1295,45 +1309,45 @@ TEST(Parse, ExtendedYears) {
TEST(Parse, RFC3339Format) {
const time_zone tz = utc_time_zone();
- time_point<nanoseconds> tp;
+ time_point<chrono::nanoseconds> tp;
EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00+00:00", tz, &tp));
ExpectTime(tp, tz, 2014, 2, 12, 20, 21, 0, 0, false, "UTC");
// Check that %Ez also accepts "Z" as a synonym for "+00:00".
- time_point<nanoseconds> tp2;
+ time_point<chrono::nanoseconds> tp2;
EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00Z", tz, &tp2));
EXPECT_EQ(tp, tp2);
}
TEST(Parse, MaxRange) {
const time_zone utc = utc_time_zone();
- time_point<sys_seconds> tp;
+ time_point<absl::time_internal::cctz::seconds> tp;
// tests the upper limit using +00:00 offset
EXPECT_TRUE(
parse(RFC3339_sec, "292277026596-12-04T15:30:07+00:00", utc, &tp));
- EXPECT_EQ(tp, time_point<sys_seconds>::max());
+ EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::max());
EXPECT_FALSE(
parse(RFC3339_sec, "292277026596-12-04T15:30:08+00:00", utc, &tp));
// tests the upper limit using -01:00 offset
EXPECT_TRUE(
parse(RFC3339_sec, "292277026596-12-04T14:30:07-01:00", utc, &tp));
- EXPECT_EQ(tp, time_point<sys_seconds>::max());
+ EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::max());
EXPECT_FALSE(
parse(RFC3339_sec, "292277026596-12-04T15:30:07-01:00", utc, &tp));
// tests the lower limit using +00:00 offset
EXPECT_TRUE(
parse(RFC3339_sec, "-292277022657-01-27T08:29:52+00:00", utc, &tp));
- EXPECT_EQ(tp, time_point<sys_seconds>::min());
+ EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::min());
EXPECT_FALSE(
parse(RFC3339_sec, "-292277022657-01-27T08:29:51+00:00", utc, &tp));
// tests the lower limit using +01:00 offset
EXPECT_TRUE(
parse(RFC3339_sec, "-292277022657-01-27T09:29:52+01:00", utc, &tp));
- EXPECT_EQ(tp, time_point<sys_seconds>::min());
+ EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::min());
EXPECT_FALSE(
parse(RFC3339_sec, "-292277022657-01-27T08:29:51+01:00", utc, &tp));
@@ -1356,11 +1370,11 @@ TEST(FormatParse, RoundTrip) {
time_zone lax;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax));
const auto in = convert(civil_second(1977, 6, 28, 9, 8, 7), lax);
- const auto subseconds = nanoseconds(654321);
+ const auto subseconds = chrono::nanoseconds(654321);
// RFC3339, which renders subseconds.
{
- time_point<nanoseconds> out;
+ time_point<chrono::nanoseconds> out;
const std::string s = format(RFC3339_full, in + subseconds, lax);
EXPECT_TRUE(parse(RFC3339_full, s, lax, &out)) << s;
EXPECT_EQ(in + subseconds, out); // RFC3339_full includes %Ez
@@ -1368,7 +1382,7 @@ TEST(FormatParse, RoundTrip) {
// RFC1123, which only does whole seconds.
{
- time_point<nanoseconds> out;
+ time_point<chrono::nanoseconds> out;
const std::string s = format(RFC1123_full, in, lax);
EXPECT_TRUE(parse(RFC1123_full, s, lax, &out)) << s;
EXPECT_EQ(in, out); // RFC1123_full includes %z
@@ -1381,7 +1395,7 @@ TEST(FormatParse, RoundTrip) {
// Even though we don't know what %c will produce, it should roundtrip,
// but only in the 0-offset timezone.
{
- time_point<nanoseconds> out;
+ time_point<chrono::nanoseconds> out;
time_zone utc = utc_time_zone();
const std::string s = format("%c", in, utc);
EXPECT_TRUE(parse("%c", s, utc, &out)) << s;
@@ -1392,23 +1406,23 @@ TEST(FormatParse, RoundTrip) {
TEST(FormatParse, RoundTripDistantFuture) {
const time_zone utc = utc_time_zone();
- const time_point<sys_seconds> in = time_point<sys_seconds>::max();
+ const time_point<absl::time_internal::cctz::seconds> in = time_point<absl::time_internal::cctz::seconds>::max();
const std::string s = format(RFC3339_full, in, utc);
- time_point<sys_seconds> out;
+ time_point<absl::time_internal::cctz::seconds> out;
EXPECT_TRUE(parse(RFC3339_full, s, utc, &out)) << s;
EXPECT_EQ(in, out);
}
TEST(FormatParse, RoundTripDistantPast) {
const time_zone utc = utc_time_zone();
- const time_point<sys_seconds> in = time_point<sys_seconds>::min();
+ const time_point<absl::time_internal::cctz::seconds> in = time_point<absl::time_internal::cctz::seconds>::min();
const std::string s = format(RFC3339_full, in, utc);
- time_point<sys_seconds> out;
+ time_point<absl::time_internal::cctz::seconds> out;
EXPECT_TRUE(parse(RFC3339_full, s, utc, &out)) << s;
EXPECT_EQ(in, out);
}
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_if.cc b/absl/time/internal/cctz/src/time_zone_if.cc
index d289a5c9..f7c36b2b 100644
--- a/absl/time/internal/cctz/src/time_zone_if.cc
+++ b/absl/time/internal/cctz/src/time_zone_if.cc
@@ -17,7 +17,7 @@
#include "time_zone_libc.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -39,5 +39,5 @@ TimeZoneIf::~TimeZoneIf() {}
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_if.h b/absl/time/internal/cctz/src/time_zone_if.h
index 2d5f885d..9886f2c5 100644
--- a/absl/time/internal/cctz/src/time_zone_if.h
+++ b/absl/time/internal/cctz/src/time_zone_if.h
@@ -24,7 +24,7 @@
#include "absl/time/internal/cctz/include/cctz/time_zone.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -38,35 +38,37 @@ class TimeZoneIf {
virtual ~TimeZoneIf();
virtual time_zone::absolute_lookup BreakTime(
- const time_point<sys_seconds>& tp) const = 0;
+ const time_point<seconds>& tp) const = 0;
virtual time_zone::civil_lookup MakeTime(
const civil_second& cs) const = 0;
+ virtual bool NextTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const = 0;
+ virtual bool PrevTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const = 0;
+
+ virtual std::string Version() const = 0;
virtual std::string Description() const = 0;
- virtual bool NextTransition(time_point<sys_seconds>* tp) const = 0;
- virtual bool PrevTransition(time_point<sys_seconds>* tp) const = 0;
protected:
TimeZoneIf() {}
};
-// Convert between time_point<sys_seconds> and a count of seconds since
-// the Unix epoch. We assume that the std::chrono::system_clock and the
+// Convert between time_point<seconds> and a count of seconds since the
+// Unix epoch. We assume that the std::chrono::system_clock and the
// Unix clock are second aligned, but not that they share an epoch.
-inline std::int_fast64_t ToUnixSeconds(const time_point<sys_seconds>& tp) {
- return (tp - std::chrono::time_point_cast<sys_seconds>(
- std::chrono::system_clock::from_time_t(0)))
- .count();
+inline std::int_fast64_t ToUnixSeconds(const time_point<seconds>& tp) {
+ return (tp - std::chrono::time_point_cast<seconds>(
+ std::chrono::system_clock::from_time_t(0))).count();
}
-inline time_point<sys_seconds> FromUnixSeconds(std::int_fast64_t t) {
- return std::chrono::time_point_cast<sys_seconds>(
- std::chrono::system_clock::from_time_t(0)) +
- sys_seconds(t);
+inline time_point<seconds> FromUnixSeconds(std::int_fast64_t t) {
+ return std::chrono::time_point_cast<seconds>(
+ std::chrono::system_clock::from_time_t(0)) + seconds(t);
}
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_
diff --git a/absl/time/internal/cctz/src/time_zone_impl.cc b/absl/time/internal/cctz/src/time_zone_impl.cc
index 3ba40ac2..a4e42916 100644
--- a/absl/time/internal/cctz/src/time_zone_impl.cc
+++ b/absl/time/internal/cctz/src/time_zone_impl.cc
@@ -22,7 +22,7 @@
#include "time_zone_fixed.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -46,8 +46,8 @@ bool time_zone::Impl::LoadTimeZone(const std::string& name, time_zone* tz) {
const time_zone::Impl* const utc_impl = UTCImpl();
// First check for UTC (which is never a key in time_zone_map).
- auto offset = sys_seconds::zero();
- if (FixedOffsetFromName(name, &offset) && offset == sys_seconds::zero()) {
+ auto offset = seconds::zero();
+ if (FixedOffsetFromName(name, &offset) && offset == seconds::zero()) {
*tz = time_zone(utc_impl);
return true;
}
@@ -84,15 +84,6 @@ bool time_zone::Impl::LoadTimeZone(const std::string& name, time_zone* tz) {
return impl != utc_impl;
}
-const time_zone::Impl& time_zone::Impl::get(const time_zone& tz) {
- if (tz.impl_ == nullptr) {
- // Dereferencing an implicit-UTC time_zone is expected to be
- // rare, so we don't mind paying a small synchronization cost.
- return *UTCImpl();
- }
- return *tz.impl_;
-}
-
void time_zone::Impl::ClearTimeZoneMapTestOnly() {
std::lock_guard<std::mutex> lock(time_zone_mutex);
if (time_zone_map != nullptr) {
@@ -115,5 +106,5 @@ const time_zone::Impl* time_zone::Impl::UTCImpl() {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_impl.h b/absl/time/internal/cctz/src/time_zone_impl.h
index a955e40e..7da2e99d 100644
--- a/absl/time/internal/cctz/src/time_zone_impl.h
+++ b/absl/time/internal/cctz/src/time_zone_impl.h
@@ -24,7 +24,7 @@
#include "time_zone_info.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -38,19 +38,18 @@ class time_zone::Impl {
// some other kind of error occurs. Note that loading "UTC" never fails.
static bool LoadTimeZone(const std::string& name, time_zone* tz);
- // Dereferences the time_zone to obtain its Impl.
- static const time_zone::Impl& get(const time_zone& tz);
-
// Clears the map of cached time zones. Primarily for use in benchmarks
// that gauge the performance of loading/parsing the time-zone data.
static void ClearTimeZoneMapTestOnly();
// The primary key is the time-zone ID (e.g., "America/New_York").
- const std::string& name() const { return name_; }
+ const std::string& Name() const {
+ // TODO: It would nice if the zoneinfo data included the zone name.
+ return name_;
+ }
// Breaks a time_point down to civil-time components in this time zone.
- time_zone::absolute_lookup BreakTime(
- const time_point<sys_seconds>& tp) const {
+ time_zone::absolute_lookup BreakTime(const time_point<seconds>& tp) const {
return zone_->BreakTime(tp);
}
@@ -61,28 +60,22 @@ class time_zone::Impl {
return zone_->MakeTime(cs);
}
- // Returns an implementation-specific description of this time zone.
- std::string Description() const { return zone_->Description(); }
-
// Finds the time of the next/previous offset change in this time zone.
- //
- // By definition, NextTransition(&tp) returns false when tp has its
- // maximum value, and PrevTransition(&tp) returns false when tp has its
- // mimimum value. If the zone has no transitions, the result will also
- // be false no matter what the argument.
- //
- // Otherwise, when tp has its mimimum value, NextTransition(&tp) returns
- // true and sets tp to the first recorded transition. Chains of calls
- // to NextTransition()/PrevTransition() will eventually return false,
- // but it is unspecified exactly when NextTransition(&tp) jumps to false,
- // or what time is set by PrevTransition(&tp) for a very distant tp.
- bool NextTransition(time_point<sys_seconds>* tp) const {
- return zone_->NextTransition(tp);
+ bool NextTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const {
+ return zone_->NextTransition(tp, trans);
}
- bool PrevTransition(time_point<sys_seconds>* tp) const {
- return zone_->PrevTransition(tp);
+ bool PrevTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const {
+ return zone_->PrevTransition(tp, trans);
}
+ // Returns an implementation-defined version std::string for this time zone.
+ std::string Version() const { return zone_->Version(); }
+
+ // Returns an implementation-defined description of this time zone.
+ std::string Description() const { return zone_->Description(); }
+
private:
explicit Impl(const std::string& name);
static const Impl* UTCImpl();
@@ -93,7 +86,7 @@ class time_zone::Impl {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_
diff --git a/absl/time/internal/cctz/src/time_zone_info.cc b/absl/time/internal/cctz/src/time_zone_info.cc
index 7f5a8fad..e19d1d2d 100644
--- a/absl/time/internal/cctz/src/time_zone_info.cc
+++ b/absl/time/internal/cctz/src/time_zone_info.cc
@@ -50,7 +50,7 @@
#include "time_zone_posix.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -141,7 +141,7 @@ std::int_fast64_t TransOffset(bool leap_year, int jan1_weekday,
return (days * kSecsPerDay) + pt.time.offset;
}
-inline time_zone::civil_lookup MakeUnique(const time_point<sys_seconds>& tp) {
+inline time_zone::civil_lookup MakeUnique(const time_point<seconds>& tp) {
time_zone::civil_lookup cl;
cl.kind = time_zone::civil_lookup::UNIQUE;
cl.pre = cl.trans = cl.post = tp;
@@ -180,21 +180,20 @@ inline civil_second YearShift(const civil_second& cs, year_t shift) {
} // namespace
// What (no leap-seconds) UTC+seconds zoneinfo would look like.
-bool TimeZoneInfo::ResetToBuiltinUTC(const sys_seconds& offset) {
+bool TimeZoneInfo::ResetToBuiltinUTC(const seconds& offset) {
transition_types_.resize(1);
TransitionType& tt(transition_types_.back());
tt.utc_offset = static_cast<std::int_least32_t>(offset.count());
tt.is_dst = false;
tt.abbr_index = 0;
- // We temporarily add some redundant, contemporary (2012 through 2021)
+ // We temporarily add some redundant, contemporary (2013 through 2023)
// transitions for performance reasons. See TimeZoneInfo::LocalTime().
// TODO: Fix the performance issue and remove the extra transitions.
transitions_.clear();
transitions_.reserve(12);
for (const std::int_fast64_t unix_time : {
-(1LL << 59), // BIG_BANG
- 1325376000LL, // 2012-01-01T00:00:00+00:00
1356998400LL, // 2013-01-01T00:00:00+00:00
1388534400LL, // 2014-01-01T00:00:00+00:00
1420070400LL, // 2015-01-01T00:00:00+00:00
@@ -204,6 +203,8 @@ bool TimeZoneInfo::ResetToBuiltinUTC(const sys_seconds& offset) {
1546300800LL, // 2019-01-01T00:00:00+00:00
1577836800LL, // 2020-01-01T00:00:00+00:00
1609459200LL, // 2021-01-01T00:00:00+00:00
+ 1640995200LL, // 2022-01-01T00:00:00+00:00
+ 1672531200LL, // 2023-01-01T00:00:00+00:00
2147483647LL, // 2^31 - 1
}) {
Transition& tr(*transitions_.emplace(transitions_.end()));
@@ -219,8 +220,8 @@ bool TimeZoneInfo::ResetToBuiltinUTC(const sys_seconds& offset) {
future_spec_.clear(); // never needed for a fixed-offset zone
extended_ = false;
- tt.civil_max = LocalTime(sys_seconds::max().count(), tt).cs;
- tt.civil_min = LocalTime(sys_seconds::min().count(), tt).cs;
+ tt.civil_max = LocalTime(seconds::max().count(), tt).cs;
+ tt.civil_min = LocalTime(seconds::min().count(), tt).cs;
transitions_.shrink_to_fit();
return true;
@@ -286,7 +287,7 @@ bool TimeZoneInfo::EquivTransitions(std::uint_fast8_t tt1_index,
return true;
}
-// Use the POSIX-TZ-environment-variable-style std::string to handle times
+// Use the POSIX-TZ-environment-variable-style string to handle times
// in years after the last transition stored in the zoneinfo data.
void TimeZoneInfo::ExtendTransitions(const std::string& name,
const Header& hdr) {
@@ -520,6 +521,13 @@ bool TimeZoneInfo::Load(const std::string& name, ZoneInfoSource* zip) {
// We don't check for EOF so that we're forwards compatible.
+ // If we did not find version information during the standard loading
+ // process (as of tzh_version '3' that is unsupported), then ask the
+ // ZoneInfoSource for any out-of-bound version std::string it may be privy to.
+ if (version_.empty()) {
+ version_ = zip->Version();
+ }
+
// Trim redundant transitions. zic may have added these to work around
// differences between the glibc and reference implementations (see
// zic.c:dontmerge) and the Qt library (see zic.c:WORK_AROUND_QTBUG_53071).
@@ -566,10 +574,10 @@ bool TimeZoneInfo::Load(const std::string& name, ZoneInfoSource* zip) {
}
// Compute the maximum/minimum civil times that can be converted to a
- // time_point<sys_seconds> for each of the zone's transition types.
+ // time_point<seconds> for each of the zone's transition types.
for (auto& tt : transition_types_) {
- tt.civil_max = LocalTime(sys_seconds::max().count(), tt).cs;
- tt.civil_min = LocalTime(sys_seconds::min().count(), tt).cs;
+ tt.civil_max = LocalTime(seconds::max().count(), tt).cs;
+ tt.civil_min = LocalTime(seconds::min().count(), tt).cs;
}
transitions_.shrink_to_fit();
@@ -606,6 +614,10 @@ class FileZoneInfoSource : public ZoneInfoSource {
if (rc == 0) len_ -= offset;
return rc;
}
+ std::string Version() const override {
+ // TODO: It would nice if the zoneinfo data included the tzdb version.
+ return std::string();
+ }
protected:
explicit FileZoneInfoSource(
@@ -655,14 +667,15 @@ std::unique_ptr<ZoneInfoSource> FileZoneInfoSource::Open(
return std::unique_ptr<ZoneInfoSource>(new FileZoneInfoSource(fp, length));
}
-#if defined(__ANDROID__)
class AndroidZoneInfoSource : public FileZoneInfoSource {
public:
static std::unique_ptr<ZoneInfoSource> Open(const std::string& name);
+ std::string Version() const override { return version_; }
private:
- explicit AndroidZoneInfoSource(FILE* fp, std::size_t len)
- : FileZoneInfoSource(fp, len) {}
+ explicit AndroidZoneInfoSource(FILE* fp, std::size_t len, const char* vers)
+ : FileZoneInfoSource(fp, len), version_(vers) {}
+ std::string version_;
};
std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open(
@@ -670,6 +683,7 @@ std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open(
// Use of the "file:" prefix is intended for testing purposes only.
if (name.compare(0, 5, "file:") == 0) return Open(name.substr(5));
+#if defined(__ANDROID__)
// See Android's libc/tzcode/bionic.cpp for additional information.
for (const char* tzdata : {"/data/misc/zoneinfo/current/tzdata",
"/system/usr/share/zoneinfo/tzdata"}) {
@@ -679,6 +693,7 @@ std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open(
char hbuf[24]; // covers header.zonetab_offset too
if (fread(hbuf, 1, sizeof(hbuf), fp.get()) != sizeof(hbuf)) continue;
if (strncmp(hbuf, "tzdata", 6) != 0) continue;
+ const char* vers = (hbuf[11] == '\0') ? hbuf + 6 : "";
const std::int_fast32_t index_offset = Decode32(hbuf + 12);
const std::int_fast32_t data_offset = Decode32(hbuf + 16);
if (index_offset < 0 || data_offset < index_offset) continue;
@@ -699,13 +714,13 @@ std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open(
if (strcmp(name.c_str(), ebuf) == 0) {
if (fseek(fp.get(), static_cast<long>(start), SEEK_SET) != 0) break;
return std::unique_ptr<ZoneInfoSource>(new AndroidZoneInfoSource(
- fp.release(), static_cast<std::size_t>(length)));
+ fp.release(), static_cast<std::size_t>(length), vers));
}
}
}
+#endif // __ANDROID__
return nullptr;
}
-#endif
} // namespace
@@ -714,7 +729,7 @@ bool TimeZoneInfo::Load(const std::string& name) {
// zone never fails because the simple, fixed-offset state can be
// internally generated. Note that this depends on our choice to not
// accept leap-second encoded ("right") zoneinfo.
- auto offset = sys_seconds::zero();
+ auto offset = seconds::zero();
if (FixedOffsetFromName(name, &offset)) {
return ResetToBuiltinUTC(offset);
}
@@ -723,9 +738,7 @@ bool TimeZoneInfo::Load(const std::string& name) {
auto zip = cctz_extension::zone_info_source_factory(
name, [](const std::string& name) -> std::unique_ptr<ZoneInfoSource> {
if (auto zip = FileZoneInfoSource::Open(name)) return zip;
-#if defined(__ANDROID__)
if (auto zip = AndroidZoneInfoSource::Open(name)) return zip;
-#endif
return nullptr;
});
return zip != nullptr && Load(name, zip.get());
@@ -756,14 +769,14 @@ time_zone::civil_lookup TimeZoneInfo::TimeLocal(const civil_second& cs,
year_t c4_shift) const {
assert(last_year_ - 400 < cs.year() && cs.year() <= last_year_);
time_zone::civil_lookup cl = MakeTime(cs);
- if (c4_shift > sys_seconds::max().count() / kSecsPer400Years) {
- cl.pre = cl.trans = cl.post = time_point<sys_seconds>::max();
+ if (c4_shift > seconds::max().count() / kSecsPer400Years) {
+ cl.pre = cl.trans = cl.post = time_point<seconds>::max();
} else {
- const auto offset = sys_seconds(c4_shift * kSecsPer400Years);
- const auto limit = time_point<sys_seconds>::max() - offset;
+ const auto offset = seconds(c4_shift * kSecsPer400Years);
+ const auto limit = time_point<seconds>::max() - offset;
for (auto* tp : {&cl.pre, &cl.trans, &cl.post}) {
if (*tp > limit) {
- *tp = time_point<sys_seconds>::max();
+ *tp = time_point<seconds>::max();
} else {
*tp += offset;
}
@@ -773,7 +786,7 @@ time_zone::civil_lookup TimeZoneInfo::TimeLocal(const civil_second& cs,
}
time_zone::absolute_lookup TimeZoneInfo::BreakTime(
- const time_point<sys_seconds>& tp) const {
+ const time_point<seconds>& tp) const {
std::int_fast64_t unix_time = ToUnixSeconds(tp);
const std::size_t timecnt = transitions_.size();
assert(timecnt != 0); // We always add a transition.
@@ -789,7 +802,7 @@ time_zone::absolute_lookup TimeZoneInfo::BreakTime(
const std::int_fast64_t diff =
unix_time - transitions_[timecnt - 1].unix_time;
const year_t shift = diff / kSecsPer400Years + 1;
- const auto d = sys_seconds(shift * kSecsPer400Years);
+ const auto d = seconds(shift * kSecsPer400Years);
time_zone::absolute_lookup al = BreakTime(tp - d);
al.cs = YearShift(al.cs, shift * 400);
return al;
@@ -848,7 +861,7 @@ time_zone::civil_lookup TimeZoneInfo::MakeTime(const civil_second& cs) const {
if (tr->prev_civil_sec >= cs) {
// Before first transition, so use the default offset.
const TransitionType& tt(transition_types_[default_transition_type_]);
- if (cs < tt.civil_min) return MakeUnique(time_point<sys_seconds>::min());
+ if (cs < tt.civil_min) return MakeUnique(time_point<seconds>::min());
return MakeUnique(cs - (civil_second() + tt.utc_offset));
}
// tr->prev_civil_sec < cs < tr->civil_sec
@@ -865,7 +878,7 @@ time_zone::civil_lookup TimeZoneInfo::MakeTime(const civil_second& cs) const {
return TimeLocal(YearShift(cs, shift * -400), shift);
}
const TransitionType& tt(transition_types_[tr->type_index]);
- if (cs > tt.civil_max) return MakeUnique(time_point<sys_seconds>::max());
+ if (cs > tt.civil_max) return MakeUnique(time_point<seconds>::max());
return MakeUnique(tr->unix_time + (cs - tr->civil_sec));
}
// tr->civil_sec <= cs <= tr->prev_civil_sec
@@ -886,17 +899,20 @@ time_zone::civil_lookup TimeZoneInfo::MakeTime(const civil_second& cs) const {
return MakeUnique(tr->unix_time + (cs - tr->civil_sec));
}
+std::string TimeZoneInfo::Version() const {
+ return version_;
+}
+
std::string TimeZoneInfo::Description() const {
std::ostringstream oss;
- // TODO: It would nice if the zoneinfo data included the zone name.
- // TODO: It would nice if the zoneinfo data included the tzdb version.
oss << "#trans=" << transitions_.size();
oss << " #types=" << transition_types_.size();
oss << " spec='" << future_spec_ << "'";
return oss.str();
}
-bool TimeZoneInfo::NextTransition(time_point<sys_seconds>* tp) const {
+bool TimeZoneInfo::NextTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const {
if (transitions_.empty()) return false;
const Transition* begin = &transitions_[0];
const Transition* end = begin + transitions_.size();
@@ -905,22 +921,24 @@ bool TimeZoneInfo::NextTransition(time_point<sys_seconds>* tp) const {
// really a sentinel, not a transition. See tz/zic.c.
++begin;
}
- std::int_fast64_t unix_time = ToUnixSeconds(*tp);
+ std::int_fast64_t unix_time = ToUnixSeconds(tp);
const Transition target = { unix_time };
const Transition* tr = std::upper_bound(begin, end, target,
Transition::ByUnixTime());
- if (tr != begin) { // skip no-op transitions
- for (; tr != end; ++tr) {
- if (!EquivTransitions(tr[-1].type_index, tr[0].type_index)) break;
- }
+ for (; tr != end; ++tr) { // skip no-op transitions
+ std::uint_fast8_t prev_type_index =
+ (tr == begin) ? default_transition_type_ : tr[-1].type_index;
+ if (!EquivTransitions(prev_type_index, tr[0].type_index)) break;
}
// When tr == end we return false, ignoring future_spec_.
if (tr == end) return false;
- *tp = FromUnixSeconds(tr->unix_time);
+ trans->from = tr->prev_civil_sec + 1;
+ trans->to = tr->civil_sec;
return true;
}
-bool TimeZoneInfo::PrevTransition(time_point<sys_seconds>* tp) const {
+bool TimeZoneInfo::PrevTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const {
if (transitions_.empty()) return false;
const Transition* begin = &transitions_[0];
const Transition* end = begin + transitions_.size();
@@ -929,11 +947,12 @@ bool TimeZoneInfo::PrevTransition(time_point<sys_seconds>* tp) const {
// really a sentinel, not a transition. See tz/zic.c.
++begin;
}
- std::int_fast64_t unix_time = ToUnixSeconds(*tp);
- if (FromUnixSeconds(unix_time) != *tp) {
+ std::int_fast64_t unix_time = ToUnixSeconds(tp);
+ if (FromUnixSeconds(unix_time) != tp) {
if (unix_time == std::numeric_limits<std::int_fast64_t>::max()) {
if (end == begin) return false; // Ignore future_spec_.
- *tp = FromUnixSeconds((--end)->unix_time);
+ trans->from = (--end)->prev_civil_sec + 1;
+ trans->to = end->civil_sec;
return true;
}
unix_time += 1; // ceils
@@ -941,18 +960,19 @@ bool TimeZoneInfo::PrevTransition(time_point<sys_seconds>* tp) const {
const Transition target = { unix_time };
const Transition* tr = std::lower_bound(begin, end, target,
Transition::ByUnixTime());
- if (tr != begin) { // skip no-op transitions
- for (; tr - 1 != begin; --tr) {
- if (!EquivTransitions(tr[-2].type_index, tr[-1].type_index)) break;
- }
+ for (; tr != begin; --tr) { // skip no-op transitions
+ std::uint_fast8_t prev_type_index =
+ (tr - 1 == begin) ? default_transition_type_ : tr[-2].type_index;
+ if (!EquivTransitions(prev_type_index, tr[-1].type_index)) break;
}
// When tr == end we return the "last" transition, ignoring future_spec_.
if (tr == begin) return false;
- *tp = FromUnixSeconds((--tr)->unix_time);
+ trans->from = (--tr)->prev_civil_sec + 1;
+ trans->to = tr->civil_sec;
return true;
}
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_info.h b/absl/time/internal/cctz/src/time_zone_info.h
index 5abf2811..e7a7d02f 100644
--- a/absl/time/internal/cctz/src/time_zone_info.h
+++ b/absl/time/internal/cctz/src/time_zone_info.h
@@ -28,7 +28,7 @@
#include "tzfile.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -72,12 +72,15 @@ class TimeZoneInfo : public TimeZoneIf {
// TimeZoneIf implementations.
time_zone::absolute_lookup BreakTime(
- const time_point<sys_seconds>& tp) const override;
+ const time_point<seconds>& tp) const override;
time_zone::civil_lookup MakeTime(
const civil_second& cs) const override;
+ bool NextTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const override;
+ bool PrevTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const override;
+ std::string Version() const override;
std::string Description() const override;
- bool NextTransition(time_point<sys_seconds>* tp) const override;
- bool PrevTransition(time_point<sys_seconds>* tp) const override;
private:
struct Header { // counts of:
@@ -99,7 +102,7 @@ class TimeZoneInfo : public TimeZoneIf {
std::uint_fast8_t tt2_index) const;
void ExtendTransitions(const std::string& name, const Header& hdr);
- bool ResetToBuiltinUTC(const sys_seconds& offset);
+ bool ResetToBuiltinUTC(const seconds& offset);
bool Load(const std::string& name, ZoneInfoSource* zip);
// Helpers for BreakTime() and MakeTime().
@@ -115,6 +118,7 @@ class TimeZoneInfo : public TimeZoneIf {
std::uint_fast8_t default_transition_type_; // for before first transition
std::string abbreviations_; // all the NUL-terminated abbreviations
+ std::string version_; // the tzdata version if available
std::string future_spec_; // for after the last zic transition
bool extended_; // future_spec_ was used to generate transitions
year_t last_year_; // the final year of the generated transitions
@@ -128,7 +132,7 @@ class TimeZoneInfo : public TimeZoneIf {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_
diff --git a/absl/time/internal/cctz/src/time_zone_libc.cc b/absl/time/internal/cctz/src/time_zone_libc.cc
index 32a7a927..3dd75b50 100644
--- a/absl/time/internal/cctz/src/time_zone_libc.cc
+++ b/absl/time/internal/cctz/src/time_zone_libc.cc
@@ -20,6 +20,7 @@
#include <chrono>
#include <ctime>
+#include <limits>
#include <tuple>
#include <utility>
@@ -27,7 +28,7 @@
#include "absl/time/internal/cctz/include/cctz/time_zone.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -86,73 +87,206 @@ OffsetAbbr get_offset_abbr(const T& tm, decltype(&T::__tm_gmtoff) = nullptr,
#endif // !defined(__tm_gmtoff) && !defined(__tm_zone)
#endif
+inline std::tm* gm_time(const std::time_t *timep, std::tm *result) {
+#if defined(_WIN32) || defined(_WIN64)
+ return gmtime_s(result, timep) ? nullptr : result;
+#else
+ return gmtime_r(timep, result);
+#endif
+}
+
+inline std::tm* local_time(const std::time_t *timep, std::tm *result) {
+#if defined(_WIN32) || defined(_WIN64)
+ return localtime_s(result, timep) ? nullptr : result;
+#else
+ return localtime_r(timep, result);
+#endif
+}
+
+// Converts a civil second and "dst" flag into a time_t and UTC offset.
+// Returns false if time_t cannot represent the requested civil second.
+// Caller must have already checked that cs.year() will fit into a tm_year.
+bool make_time(const civil_second& cs, int is_dst, std::time_t* t, int* off) {
+ std::tm tm;
+ tm.tm_year = static_cast<int>(cs.year() - year_t{1900});
+ tm.tm_mon = cs.month() - 1;
+ tm.tm_mday = cs.day();
+ tm.tm_hour = cs.hour();
+ tm.tm_min = cs.minute();
+ tm.tm_sec = cs.second();
+ tm.tm_isdst = is_dst;
+ *t = std::mktime(&tm);
+ if (*t == std::time_t{-1}) {
+ std::tm tm2;
+ const std::tm* tmp = local_time(t, &tm2);
+ if (tmp == nullptr || tmp->tm_year != tm.tm_year ||
+ tmp->tm_mon != tm.tm_mon || tmp->tm_mday != tm.tm_mday ||
+ tmp->tm_hour != tm.tm_hour || tmp->tm_min != tm.tm_min ||
+ tmp->tm_sec != tm.tm_sec) {
+ // A true error (not just one second before the epoch).
+ return false;
+ }
+ }
+ *off = get_offset_abbr(tm).first;
+ return true;
+}
+
+// Find the least time_t in [lo:hi] where local time matches offset, given:
+// (1) lo doesn't match, (2) hi does, and (3) there is only one transition.
+std::time_t find_trans(std::time_t lo, std::time_t hi, int offset) {
+ std::tm tm;
+ while (lo + 1 != hi) {
+ const std::time_t mid = lo + (hi - lo) / 2;
+ if (std::tm* tmp = local_time(&mid, &tm)) {
+ if (get_offset_abbr(*tmp).first == offset) {
+ hi = mid;
+ } else {
+ lo = mid;
+ }
+ } else {
+ // If std::tm cannot hold some result we resort to a linear search,
+ // ignoring all failed conversions. Slow, but never really happens.
+ while (++lo != hi) {
+ if (std::tm* tmp = local_time(&lo, &tm)) {
+ if (get_offset_abbr(*tmp).first == offset) break;
+ }
+ }
+ return lo;
+ }
+ }
+ return hi;
+}
+
} // namespace
TimeZoneLibC::TimeZoneLibC(const std::string& name)
: local_(name == "localtime") {}
time_zone::absolute_lookup TimeZoneLibC::BreakTime(
- const time_point<sys_seconds>& tp) const {
+ const time_point<seconds>& tp) const {
time_zone::absolute_lookup al;
- std::time_t t = ToUnixSeconds(tp);
+ al.offset = 0;
+ al.is_dst = false;
+ al.abbr = "-00";
+
+ const std::int_fast64_t s = ToUnixSeconds(tp);
+
+ // If std::time_t cannot hold the input we saturate the output.
+ if (s < std::numeric_limits<std::time_t>::min()) {
+ al.cs = civil_second::min();
+ return al;
+ }
+ if (s > std::numeric_limits<std::time_t>::max()) {
+ al.cs = civil_second::max();
+ return al;
+ }
+
+ const std::time_t t = static_cast<std::time_t>(s);
std::tm tm;
- if (local_) {
-#if defined(_WIN32) || defined(_WIN64)
- localtime_s(&tm, &t);
-#else
- localtime_r(&t, &tm);
-#endif
- std::tie(al.offset, al.abbr) = get_offset_abbr(tm);
- } else {
-#if defined(_WIN32) || defined(_WIN64)
- gmtime_s(&tm, &t);
-#else
- gmtime_r(&t, &tm);
-#endif
- al.offset = 0;
- al.abbr = "UTC";
+ std::tm* tmp = local_ ? local_time(&t, &tm) : gm_time(&t, &tm);
+
+ // If std::tm cannot hold the result we saturate the output.
+ if (tmp == nullptr) {
+ al.cs = (s < 0) ? civil_second::min() : civil_second::max();
+ return al;
}
- al.cs = civil_second(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
- tm.tm_hour, tm.tm_min, tm.tm_sec);
- al.is_dst = tm.tm_isdst > 0;
+
+ const year_t year = tmp->tm_year + year_t{1900};
+ al.cs = civil_second(year, tmp->tm_mon + 1, tmp->tm_mday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+ std::tie(al.offset, al.abbr) = get_offset_abbr(*tmp);
+ if (!local_) al.abbr = "UTC"; // as expected by cctz
+ al.is_dst = tmp->tm_isdst > 0;
return al;
}
time_zone::civil_lookup TimeZoneLibC::MakeTime(const civil_second& cs) const {
- time_zone::civil_lookup cl;
- std::time_t t;
- if (local_) {
- // Does not handle SKIPPED/AMBIGUOUS or huge years.
- std::tm tm;
- tm.tm_year = static_cast<int>(cs.year() - 1900);
- tm.tm_mon = cs.month() - 1;
- tm.tm_mday = cs.day();
- tm.tm_hour = cs.hour();
- tm.tm_min = cs.minute();
- tm.tm_sec = cs.second();
- tm.tm_isdst = -1;
- t = std::mktime(&tm);
+ if (!local_) {
+ // If time_point<seconds> cannot hold the result we saturate.
+ static const civil_second min_tp_cs =
+ civil_second() + ToUnixSeconds(time_point<seconds>::min());
+ static const civil_second max_tp_cs =
+ civil_second() + ToUnixSeconds(time_point<seconds>::max());
+ const time_point<seconds> tp =
+ (cs < min_tp_cs)
+ ? time_point<seconds>::min()
+ : (cs > max_tp_cs) ? time_point<seconds>::max()
+ : FromUnixSeconds(cs - civil_second());
+ return {time_zone::civil_lookup::UNIQUE, tp, tp, tp};
+ }
+
+ // If tm_year cannot hold the requested year we saturate the result.
+ if (cs.year() < 0) {
+ if (cs.year() < std::numeric_limits<int>::min() + year_t{1900}) {
+ const time_point<seconds> tp = time_point<seconds>::min();
+ return {time_zone::civil_lookup::UNIQUE, tp, tp, tp};
+ }
} else {
- t = cs - civil_second();
+ if (cs.year() - year_t{1900} > std::numeric_limits<int>::max()) {
+ const time_point<seconds> tp = time_point<seconds>::max();
+ return {time_zone::civil_lookup::UNIQUE, tp, tp, tp};
+ }
}
- cl.kind = time_zone::civil_lookup::UNIQUE;
- cl.pre = cl.trans = cl.post = FromUnixSeconds(t);
- return cl;
-}
-std::string TimeZoneLibC::Description() const {
- return local_ ? "localtime" : "UTC";
+ // We probe with "is_dst" values of 0 and 1 to try to distinguish unique
+ // civil seconds from skipped or repeated ones. This is not always possible
+ // however, as the "dst" flag does not change over some offset transitions.
+ // We are also subject to the vagaries of mktime() implementations.
+ std::time_t t0, t1;
+ int offset0, offset1;
+ if (make_time(cs, 0, &t0, &offset0) && make_time(cs, 1, &t1, &offset1)) {
+ if (t0 == t1) {
+ // The civil time was singular (pre == trans == post).
+ const time_point<seconds> tp = FromUnixSeconds(t0);
+ return {time_zone::civil_lookup::UNIQUE, tp, tp, tp};
+ }
+
+ if (t0 > t1) {
+ std::swap(t0, t1);
+ std::swap(offset0, offset1);
+ }
+ const std::time_t tt = find_trans(t0, t1, offset1);
+ const time_point<seconds> trans = FromUnixSeconds(tt);
+
+ if (offset0 < offset1) {
+ // The civil time did not exist (pre >= trans > post).
+ const time_point<seconds> pre = FromUnixSeconds(t1);
+ const time_point<seconds> post = FromUnixSeconds(t0);
+ return {time_zone::civil_lookup::SKIPPED, pre, trans, post};
+ }
+
+ // The civil time was ambiguous (pre < trans <= post).
+ const time_point<seconds> pre = FromUnixSeconds(t0);
+ const time_point<seconds> post = FromUnixSeconds(t1);
+ return {time_zone::civil_lookup::REPEATED, pre, trans, post};
+ }
+
+ // make_time() failed somehow so we saturate the result.
+ const time_point<seconds> tp = (cs < civil_second())
+ ? time_point<seconds>::min()
+ : time_point<seconds>::max();
+ return {time_zone::civil_lookup::UNIQUE, tp, tp, tp};
}
-bool TimeZoneLibC::NextTransition(time_point<sys_seconds>* tp) const {
+bool TimeZoneLibC::NextTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const {
return false;
}
-bool TimeZoneLibC::PrevTransition(time_point<sys_seconds>* tp) const {
+bool TimeZoneLibC::PrevTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const {
return false;
}
+std::string TimeZoneLibC::Version() const {
+ return std::string(); // unknown
+}
+
+std::string TimeZoneLibC::Description() const {
+ return local_ ? "localtime" : "UTC";
+}
+
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_libc.h b/absl/time/internal/cctz/src/time_zone_libc.h
index 0856b200..67372d45 100644
--- a/absl/time/internal/cctz/src/time_zone_libc.h
+++ b/absl/time/internal/cctz/src/time_zone_libc.h
@@ -20,7 +20,7 @@
#include "time_zone_if.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -33,12 +33,15 @@ class TimeZoneLibC : public TimeZoneIf {
// TimeZoneIf implementations.
time_zone::absolute_lookup BreakTime(
- const time_point<sys_seconds>& tp) const override;
+ const time_point<seconds>& tp) const override;
time_zone::civil_lookup MakeTime(
const civil_second& cs) const override;
+ bool NextTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const override;
+ bool PrevTransition(const time_point<seconds>& tp,
+ time_zone::civil_transition* trans) const override;
+ std::string Version() const override;
std::string Description() const override;
- bool NextTransition(time_point<sys_seconds>* tp) const override;
- bool PrevTransition(time_point<sys_seconds>* tp) const override;
private:
const bool local_; // localtime or UTC
@@ -46,7 +49,7 @@ class TimeZoneLibC : public TimeZoneIf {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_
diff --git a/absl/time/internal/cctz/src/time_zone_lookup.cc b/absl/time/internal/cctz/src/time_zone_lookup.cc
index 18d1565f..711d705a 100644
--- a/absl/time/internal/cctz/src/time_zone_lookup.cc
+++ b/absl/time/internal/cctz/src/time_zone_lookup.cc
@@ -28,7 +28,7 @@
#include "time_zone_impl.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -62,20 +62,43 @@ int __system_property_get(const char* name, char* value) {
#endif
std::string time_zone::name() const {
- return time_zone::Impl::get(*this).name();
+ return effective_impl().Name();
}
time_zone::absolute_lookup time_zone::lookup(
- const time_point<sys_seconds>& tp) const {
- return time_zone::Impl::get(*this).BreakTime(tp);
+ const time_point<seconds>& tp) const {
+ return effective_impl().BreakTime(tp);
}
time_zone::civil_lookup time_zone::lookup(const civil_second& cs) const {
- return time_zone::Impl::get(*this).MakeTime(cs);
+ return effective_impl().MakeTime(cs);
}
-bool operator==(time_zone lhs, time_zone rhs) {
- return &time_zone::Impl::get(lhs) == &time_zone::Impl::get(rhs);
+bool time_zone::next_transition(const time_point<seconds>& tp,
+ civil_transition* trans) const {
+ return effective_impl().NextTransition(tp, trans);
+}
+
+bool time_zone::prev_transition(const time_point<seconds>& tp,
+ civil_transition* trans) const {
+ return effective_impl().PrevTransition(tp, trans);
+}
+
+std::string time_zone::version() const {
+ return effective_impl().Version();
+}
+
+std::string time_zone::description() const {
+ return effective_impl().Description();
+}
+
+const time_zone::Impl& time_zone::effective_impl() const {
+ if (impl_ == nullptr) {
+ // Dereferencing an implicit-UTC time_zone is expected to be
+ // rare, so we don't mind paying a small synchronization cost.
+ return *time_zone::Impl::UTC().impl_;
+ }
+ return *impl_;
}
bool load_time_zone(const std::string& name, time_zone* tz) {
@@ -86,7 +109,7 @@ time_zone utc_time_zone() {
return time_zone::Impl::UTC(); // avoid name lookup
}
-time_zone fixed_time_zone(const sys_seconds& offset) {
+time_zone fixed_time_zone(const seconds& offset) {
time_zone tz;
load_time_zone(FixedOffsetToName(offset), &tz);
return tz;
@@ -143,5 +166,5 @@ time_zone local_time_zone() {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_lookup_test.cc b/absl/time/internal/cctz/src/time_zone_lookup_test.cc
index a1b6c687..e0e355ee 100644
--- a/absl/time/internal/cctz/src/time_zone_lookup_test.cc
+++ b/absl/time/internal/cctz/src/time_zone_lookup_test.cc
@@ -16,7 +16,9 @@
#include <chrono>
#include <cstddef>
+#include <cstdlib>
#include <future>
+#include <limits>
#include <string>
#include <thread>
#include <vector>
@@ -24,17 +26,10 @@
#include "absl/time/internal/cctz/include/cctz/civil_time.h"
#include "gtest/gtest.h"
-using std::chrono::time_point_cast;
-using std::chrono::system_clock;
-using std::chrono::nanoseconds;
-using std::chrono::microseconds;
-using std::chrono::milliseconds;
-using std::chrono::seconds;
-using std::chrono::minutes;
-using std::chrono::hours;
+namespace chrono = std::chrono;
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -659,6 +654,17 @@ time_zone LoadZone(const std::string& name) {
/* EXPECT_STREQ(zone, al.abbr); */ \
} while (0)
+// These tests sometimes run on platforms that have zoneinfo data so old
+// that the transition we are attempting to check does not exist, most
+// notably Android emulators. Fortunately, AndroidZoneInfoSource supports
+// time_zone::version() so, in cases where we've learned that it matters,
+// we can make the check conditionally.
+int VersionCmp(time_zone tz, const std::string& target) {
+ std::string version = tz.version();
+ if (version.empty() && !target.empty()) return 1; // unknown > known
+ return version.compare(target);
+}
+
} // namespace
TEST(TimeZones, LoadZonesConcurrently) {
@@ -716,13 +722,13 @@ TEST(TimeZone, NamedTimeZones) {
EXPECT_EQ("America/New_York", nyc.name());
const time_zone syd = LoadZone("Australia/Sydney");
EXPECT_EQ("Australia/Sydney", syd.name());
- const time_zone fixed0 = fixed_time_zone(sys_seconds::zero());
+ const time_zone fixed0 = fixed_time_zone(absl::time_internal::cctz::seconds::zero());
EXPECT_EQ("UTC", fixed0.name());
- const time_zone fixed_pos =
- fixed_time_zone(hours(3) + minutes(25) + seconds(45));
+ const time_zone fixed_pos = fixed_time_zone(
+ chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45));
EXPECT_EQ("Fixed/UTC+03:25:45", fixed_pos.name());
- const time_zone fixed_neg =
- fixed_time_zone(-(hours(12) + minutes(34) + seconds(56)));
+ const time_zone fixed_neg = fixed_time_zone(
+ -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56)));
EXPECT_EQ("Fixed/UTC-12:34:56", fixed_neg.name());
}
@@ -732,19 +738,19 @@ TEST(TimeZone, Failures) {
tz = LoadZone("America/Los_Angeles");
EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz));
- EXPECT_EQ(system_clock::from_time_t(0),
+ EXPECT_EQ(chrono::system_clock::from_time_t(0),
convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC
// Ensures that the load still fails on a subsequent attempt.
tz = LoadZone("America/Los_Angeles");
EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz));
- EXPECT_EQ(system_clock::from_time_t(0),
+ EXPECT_EQ(chrono::system_clock::from_time_t(0),
convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC
// Loading an empty std::string timezone should fail.
tz = LoadZone("America/Los_Angeles");
EXPECT_FALSE(load_time_zone("", &tz));
- EXPECT_EQ(system_clock::from_time_t(0),
+ EXPECT_EQ(chrono::system_clock::from_time_t(0),
convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC
}
@@ -759,7 +765,7 @@ TEST(TimeZone, Equality) {
EXPECT_EQ(implicit_utc, explicit_utc);
EXPECT_EQ(implicit_utc.name(), explicit_utc.name());
- const time_zone fixed_zero = fixed_time_zone(sys_seconds::zero());
+ const time_zone fixed_zero = fixed_time_zone(absl::time_internal::cctz::seconds::zero());
EXPECT_EQ(fixed_zero, LoadZone(fixed_zero.name()));
EXPECT_EQ(fixed_zero, explicit_utc);
@@ -767,23 +773,25 @@ TEST(TimeZone, Equality) {
EXPECT_EQ(fixed_utc, LoadZone(fixed_utc.name()));
EXPECT_EQ(fixed_utc, explicit_utc);
- const time_zone fixed_pos =
- fixed_time_zone(hours(3) + minutes(25) + seconds(45));
+ const time_zone fixed_pos = fixed_time_zone(
+ chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45));
EXPECT_EQ(fixed_pos, LoadZone(fixed_pos.name()));
EXPECT_NE(fixed_pos, explicit_utc);
- const time_zone fixed_neg =
- fixed_time_zone(-(hours(12) + minutes(34) + seconds(56)));
+ const time_zone fixed_neg = fixed_time_zone(
+ -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56)));
EXPECT_EQ(fixed_neg, LoadZone(fixed_neg.name()));
EXPECT_NE(fixed_neg, explicit_utc);
- const time_zone fixed_lim = fixed_time_zone(hours(24));
+ const time_zone fixed_lim = fixed_time_zone(chrono::hours(24));
EXPECT_EQ(fixed_lim, LoadZone(fixed_lim.name()));
EXPECT_NE(fixed_lim, explicit_utc);
- const time_zone fixed_ovfl = fixed_time_zone(hours(24) + seconds(1));
+ const time_zone fixed_ovfl =
+ fixed_time_zone(chrono::hours(24) + chrono::seconds(1));
EXPECT_EQ(fixed_ovfl, LoadZone(fixed_ovfl.name()));
EXPECT_EQ(fixed_ovfl, explicit_utc);
- EXPECT_EQ(fixed_time_zone(seconds(1)), fixed_time_zone(seconds(1)));
+ EXPECT_EQ(fixed_time_zone(chrono::seconds(1)),
+ fixed_time_zone(chrono::seconds(1)));
const time_zone local = local_time_zone();
EXPECT_EQ(local, LoadZone(local.name()));
@@ -796,40 +804,43 @@ TEST(TimeZone, Equality) {
TEST(StdChronoTimePoint, TimeTAlignment) {
// Ensures that the Unix epoch and the system clock epoch are an integral
// number of seconds apart. This simplifies conversions to/from time_t.
- auto diff = system_clock::time_point() - system_clock::from_time_t(0);
- EXPECT_EQ(system_clock::time_point::duration::zero(), diff % seconds(1));
+ auto diff = chrono::system_clock::time_point() -
+ chrono::system_clock::from_time_t(0);
+ EXPECT_EQ(chrono::system_clock::time_point::duration::zero(),
+ diff % chrono::seconds(1));
}
TEST(BreakTime, TimePointResolution) {
const time_zone utc = utc_time_zone();
- const auto t0 = system_clock::from_time_t(0);
+ const auto t0 = chrono::system_clock::from_time_t(0);
- ExpectTime(time_point_cast<nanoseconds>(t0), utc,
+ ExpectTime(chrono::time_point_cast<chrono::nanoseconds>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
- ExpectTime(time_point_cast<microseconds>(t0), utc,
+ ExpectTime(chrono::time_point_cast<chrono::microseconds>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
- ExpectTime(time_point_cast<milliseconds>(t0), utc,
+ ExpectTime(chrono::time_point_cast<chrono::milliseconds>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
- ExpectTime(time_point_cast<seconds>(t0), utc,
+ ExpectTime(chrono::time_point_cast<chrono::seconds>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
- ExpectTime(time_point_cast<sys_seconds>(t0), utc,
+ ExpectTime(chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
- ExpectTime(time_point_cast<minutes>(t0), utc,
+ ExpectTime(chrono::time_point_cast<chrono::minutes>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
- ExpectTime(time_point_cast<hours>(t0), utc,
+ ExpectTime(chrono::time_point_cast<chrono::hours>(t0), utc,
1970, 1, 1, 0, 0, 0, 0, false, "UTC");
}
TEST(BreakTime, LocalTimeInUTC) {
const time_zone tz = utc_time_zone();
- const auto tp = system_clock::from_time_t(0);
+ const auto tp = chrono::system_clock::from_time_t(0);
ExpectTime(tp, tz, 1970, 1, 1, 0, 0, 0, 0, false, "UTC");
EXPECT_EQ(weekday::thursday, get_weekday(civil_day(convert(tp, tz))));
}
TEST(BreakTime, LocalTimeInUTCUnaligned) {
const time_zone tz = utc_time_zone();
- const auto tp = system_clock::from_time_t(0) - milliseconds(500);
+ const auto tp =
+ chrono::system_clock::from_time_t(0) - chrono::milliseconds(500);
ExpectTime(tp, tz, 1969, 12, 31, 23, 59, 59, 0, false, "UTC");
EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
}
@@ -837,15 +848,16 @@ TEST(BreakTime, LocalTimeInUTCUnaligned) {
TEST(BreakTime, LocalTimePosix) {
// See IEEE Std 1003.1-1988 B.2.3 General Terms, Epoch.
const time_zone tz = utc_time_zone();
- const auto tp = system_clock::from_time_t(536457599);
+ const auto tp = chrono::system_clock::from_time_t(536457599);
ExpectTime(tp, tz, 1986, 12, 31, 23, 59, 59, 0, false, "UTC");
EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
}
TEST(TimeZoneImpl, LocalTimeInFixed) {
- const sys_seconds offset = -(hours(8) + minutes(33) + seconds(47));
+ const absl::time_internal::cctz::seconds offset =
+ -(chrono::hours(8) + chrono::minutes(33) + chrono::seconds(47));
const time_zone tz = fixed_time_zone(offset);
- const auto tp = system_clock::from_time_t(0);
+ const auto tp = chrono::system_clock::from_time_t(0);
ExpectTime(tp, tz, 1969, 12, 31, 15, 26, 13, offset.count(), false,
"-083347");
EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
@@ -853,52 +865,52 @@ TEST(TimeZoneImpl, LocalTimeInFixed) {
TEST(BreakTime, LocalTimeInNewYork) {
const time_zone tz = LoadZone("America/New_York");
- const auto tp = system_clock::from_time_t(45);
+ const auto tp = chrono::system_clock::from_time_t(45);
ExpectTime(tp, tz, 1969, 12, 31, 19, 0, 45, -5 * 60 * 60, false, "EST");
EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
}
TEST(BreakTime, LocalTimeInMTV) {
const time_zone tz = LoadZone("America/Los_Angeles");
- const auto tp = system_clock::from_time_t(1380855729);
+ const auto tp = chrono::system_clock::from_time_t(1380855729);
ExpectTime(tp, tz, 2013, 10, 3, 20, 2, 9, -7 * 60 * 60, true, "PDT");
EXPECT_EQ(weekday::thursday, get_weekday(civil_day(convert(tp, tz))));
}
TEST(BreakTime, LocalTimeInSydney) {
const time_zone tz = LoadZone("Australia/Sydney");
- const auto tp = system_clock::from_time_t(90);
+ const auto tp = chrono::system_clock::from_time_t(90);
ExpectTime(tp, tz, 1970, 1, 1, 10, 1, 30, 10 * 60 * 60, false, "AEST");
EXPECT_EQ(weekday::thursday, get_weekday(civil_day(convert(tp, tz))));
}
TEST(MakeTime, TimePointResolution) {
const time_zone utc = utc_time_zone();
- const time_point<nanoseconds> tp_ns =
+ const time_point<chrono::nanoseconds> tp_ns =
convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
EXPECT_EQ("04:05", format("%M:%E*S", tp_ns, utc));
- const time_point<microseconds> tp_us =
+ const time_point<chrono::microseconds> tp_us =
convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
EXPECT_EQ("04:05", format("%M:%E*S", tp_us, utc));
- const time_point<milliseconds> tp_ms =
+ const time_point<chrono::milliseconds> tp_ms =
convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
EXPECT_EQ("04:05", format("%M:%E*S", tp_ms, utc));
- const time_point<seconds> tp_s =
+ const time_point<chrono::seconds> tp_s =
convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
EXPECT_EQ("04:05", format("%M:%E*S", tp_s, utc));
- const time_point<sys_seconds> tp_s64 =
+ const time_point<absl::time_internal::cctz::seconds> tp_s64 =
convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
EXPECT_EQ("04:05", format("%M:%E*S", tp_s64, utc));
- // These next two require time_point_cast because the conversion from a
- // resolution of seconds (the return value of convert()) to a coarser
- // resolution requires an explicit cast.
- const time_point<minutes> tp_m =
- time_point_cast<minutes>(
+ // These next two require chrono::time_point_cast because the conversion
+ // from a resolution of seconds (the return value of convert()) to a
+ // coarser resolution requires an explicit cast.
+ const time_point<chrono::minutes> tp_m =
+ chrono::time_point_cast<chrono::minutes>(
convert(civil_second(2015, 1, 2, 3, 4, 5), utc));
EXPECT_EQ("04:00", format("%M:%E*S", tp_m, utc));
- const time_point<hours> tp_h =
- time_point_cast<hours>(
+ const time_point<chrono::hours> tp_h =
+ chrono::time_point_cast<chrono::hours>(
convert(civil_second(2015, 1, 2, 3, 4, 5), utc));
EXPECT_EQ("00:00", format("%M:%E*S", tp_h, utc));
}
@@ -906,7 +918,7 @@ TEST(MakeTime, TimePointResolution) {
TEST(MakeTime, Normalization) {
const time_zone tz = LoadZone("America/New_York");
const auto tp = convert(civil_second(2009, 2, 13, 18, 31, 30), tz);
- EXPECT_EQ(system_clock::from_time_t(1234567890), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp);
// Now requests for the same time_point but with out-of-range fields.
EXPECT_EQ(tp, convert(civil_second(2008, 14, 13, 18, 31, 30), tz)); // month
@@ -916,71 +928,234 @@ TEST(MakeTime, Normalization) {
EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 18, 30, 90), tz)); // second
}
-// NOTE: Run this with --copt=-ftrapv to detect overflow problems.
+// NOTE: Run this with -ftrapv to detect overflow problems.
TEST(MakeTime, SysSecondsLimits) {
const char RFC3339[] = "%Y-%m-%dT%H:%M:%S%Ez";
const time_zone utc = utc_time_zone();
- const time_zone east = fixed_time_zone(hours(14));
- const time_zone west = fixed_time_zone(-hours(14));
- time_point<sys_seconds> tp;
+ const time_zone east = fixed_time_zone(chrono::hours(14));
+ const time_zone west = fixed_time_zone(-chrono::hours(14));
+ time_point<absl::time_internal::cctz::seconds> tp;
- // Approach the maximal time_point<sys_seconds> value from below.
+ // Approach the maximal time_point<cctz::seconds> value from below.
tp = convert(civil_second(292277026596, 12, 4, 15, 30, 6), utc);
EXPECT_EQ("292277026596-12-04T15:30:06+00:00", format(RFC3339, tp, utc));
tp = convert(civil_second(292277026596, 12, 4, 15, 30, 7), utc);
EXPECT_EQ("292277026596-12-04T15:30:07+00:00", format(RFC3339, tp, utc));
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
tp = convert(civil_second(292277026596, 12, 4, 15, 30, 8), utc);
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
tp = convert(civil_second::max(), utc);
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
// Checks that we can also get the maximal value for a far-east zone.
tp = convert(civil_second(292277026596, 12, 5, 5, 30, 7), east);
EXPECT_EQ("292277026596-12-05T05:30:07+14:00", format(RFC3339, tp, east));
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
tp = convert(civil_second(292277026596, 12, 5, 5, 30, 8), east);
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
tp = convert(civil_second::max(), east);
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
// Checks that we can also get the maximal value for a far-west zone.
tp = convert(civil_second(292277026596, 12, 4, 1, 30, 7), west);
EXPECT_EQ("292277026596-12-04T01:30:07-14:00", format(RFC3339, tp, west));
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
tp = convert(civil_second(292277026596, 12, 4, 7, 30, 8), west);
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
tp = convert(civil_second::max(), west);
- EXPECT_EQ(time_point<sys_seconds>::max(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
- // Approach the minimal time_point<sys_seconds> value from above.
+ // Approach the minimal time_point<cctz::seconds> value from above.
tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 53), utc);
EXPECT_EQ("-292277022657-01-27T08:29:53+00:00", format(RFC3339, tp, utc));
tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 52), utc);
EXPECT_EQ("-292277022657-01-27T08:29:52+00:00", format(RFC3339, tp, utc));
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 51), utc);
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
tp = convert(civil_second::min(), utc);
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
// Checks that we can also get the minimal value for a far-east zone.
tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 52), east);
EXPECT_EQ("-292277022657-01-27T22:29:52+14:00", format(RFC3339, tp, east));
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 51), east);
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
tp = convert(civil_second::min(), east);
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
// Checks that we can also get the minimal value for a far-west zone.
tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 52), west);
EXPECT_EQ("-292277022657-01-26T18:29:52-14:00", format(RFC3339, tp, west));
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 51), west);
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
tp = convert(civil_second::min(), west);
- EXPECT_EQ(time_point<sys_seconds>::min(), tp);
+ EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
+
+ // Some similar checks for the "libc" time-zone implementation.
+ if (sizeof(std::time_t) >= 8) {
+ // Checks that "tm_year + 1900", as used by the "libc" implementation,
+ // can produce year values beyond the range on an int without overflow.
+#if defined(_WIN32) || defined(_WIN64)
+ // localtime_s() and gmtime_s() don't believe in years outside [1970:3000].
+#else
+ const time_zone utc = LoadZone("libc:UTC");
+ const year_t max_tm_year = year_t{std::numeric_limits<int>::max()} + 1900;
+ tp = convert(civil_second(max_tm_year, 12, 31, 23, 59, 59), utc);
+ EXPECT_EQ("2147485547-12-31T23:59:59+00:00", format(RFC3339, tp, utc));
+ const year_t min_tm_year = year_t{std::numeric_limits<int>::min()} + 1900;
+ tp = convert(civil_second(min_tm_year, 1, 1, 0, 0, 0), utc);
+ EXPECT_EQ("-2147481748-01-01T00:00:00+00:00", format(RFC3339, tp, utc));
+#endif
+ }
+}
+
+TEST(MakeTime, LocalTimeLibC) {
+ // Checks that cctz and libc agree on transition points in [1970:2037].
+ //
+ // We limit this test case to environments where:
+ // 1) we know how to change the time zone used by localtime()/mktime(),
+ // 2) cctz and localtime()/mktime() will use similar-enough tzdata, and
+ // 3) we have some idea about how mktime() behaves during transitions.
+#if defined(__linux__)
+ const char* const ep = getenv("TZ");
+ std::string tz_name = (ep != nullptr) ? ep : "";
+ for (const char* const* np = kTimeZoneNames; *np != nullptr; ++np) {
+ ASSERT_EQ(0, setenv("TZ", *np, 1)); // change what "localtime" means
+ const auto zi = local_time_zone();
+ const auto lc = LoadZone("libc:localtime");
+ time_zone::civil_transition trans;
+ for (auto tp = zi.lookup(civil_second()).trans;
+ zi.next_transition(tp, &trans);
+ tp = zi.lookup(trans.to).trans) {
+ const auto fcl = zi.lookup(trans.from);
+ const auto tcl = zi.lookup(trans.to);
+ civil_second cs; // compare cs in zi and lc
+ if (fcl.kind == time_zone::civil_lookup::UNIQUE) {
+ if (tcl.kind == time_zone::civil_lookup::UNIQUE) {
+ // Both unique; must be an is_dst or abbr change.
+ ASSERT_EQ(trans.from, trans.to);
+ const auto trans = fcl.trans;
+ const auto tal = zi.lookup(trans);
+ const auto tprev = trans - absl::time_internal::cctz::seconds(1);
+ const auto pal = zi.lookup(tprev);
+ if (pal.is_dst == tal.is_dst) {
+ ASSERT_STRNE(pal.abbr, tal.abbr);
+ }
+ continue;
+ }
+ ASSERT_EQ(time_zone::civil_lookup::REPEATED, tcl.kind);
+ cs = trans.to;
+ } else {
+ ASSERT_EQ(time_zone::civil_lookup::UNIQUE, tcl.kind);
+ ASSERT_EQ(time_zone::civil_lookup::SKIPPED, fcl.kind);
+ cs = trans.from;
+ }
+ if (cs.year() > 2037) break; // limit test time (and to 32-bit time_t)
+ const auto cl_zi = zi.lookup(cs);
+ if (zi.lookup(cl_zi.pre).is_dst == zi.lookup(cl_zi.post).is_dst) {
+ // The "libc" implementation cannot correctly classify transitions
+ // that don't change the "tm_isdst" flag. In Europe/Volgograd, for
+ // example, there is a SKIPPED transition from +03 to +04 with dst=F
+ // on both sides ...
+ // 1540681199 = 2018-10-28 01:59:59 +03:00:00 [dst=F off=10800]
+ // 1540681200 = 2018-10-28 03:00:00 +04:00:00 [dst=F off=14400]
+ // but std::mktime(2018-10-28 02:00:00, tm_isdst=0) fails, unlike,
+ // say, the similar Europe/Chisinau transition from +02 to +03 ...
+ // 1521935999 = 2018-03-25 01:59:59 +02:00:00 [dst=F off=7200]
+ // 1521936000 = 2018-03-25 03:00:00 +03:00:00 [dst=T off=10800]
+ // where std::mktime(2018-03-25 02:00:00, tm_isdst=0) succeeds and
+ // returns 1521936000.
+ continue;
+ }
+ if (cs == civil_second(2037, 10, 4, 2, 0, 0)) {
+ const std::string tzname = *np;
+ if (tzname == "Africa/Casablanca" || tzname == "Africa/El_Aaiun") {
+ // The "libc" implementation gets this transition wrong (at least
+ // until 2018g when it was removed), returning an offset of 3600
+ // instead of 0. TODO: Revert this when 2018g is ubiquitous.
+ continue;
+ }
+ }
+ const auto cl_lc = lc.lookup(cs);
+ SCOPED_TRACE(testing::Message() << "For " << cs << " in " << *np);
+ EXPECT_EQ(cl_zi.kind, cl_lc.kind);
+ EXPECT_EQ(cl_zi.pre, cl_lc.pre);
+ EXPECT_EQ(cl_zi.trans, cl_lc.trans);
+ EXPECT_EQ(cl_zi.post, cl_lc.post);
+ }
+ }
+ if (ep == nullptr) {
+ ASSERT_EQ(0, unsetenv("TZ"));
+ } else {
+ ASSERT_EQ(0, setenv("TZ", tz_name.c_str(), 1));
+ }
+#endif
+}
+
+TEST(NextTransition, UTC) {
+ const auto tz = utc_time_zone();
+ time_zone::civil_transition trans;
+
+ auto tp = time_point<absl::time_internal::cctz::seconds>::min();
+ EXPECT_FALSE(tz.next_transition(tp, &trans));
+
+ tp = time_point<absl::time_internal::cctz::seconds>::max();
+ EXPECT_FALSE(tz.next_transition(tp, &trans));
+}
+
+TEST(PrevTransition, UTC) {
+ const auto tz = utc_time_zone();
+ time_zone::civil_transition trans;
+
+ auto tp = time_point<absl::time_internal::cctz::seconds>::max();
+ EXPECT_FALSE(tz.prev_transition(tp, &trans));
+
+ tp = time_point<absl::time_internal::cctz::seconds>::min();
+ EXPECT_FALSE(tz.prev_transition(tp, &trans));
+}
+
+TEST(NextTransition, AmericaNewYork) {
+ const auto tz = LoadZone("America/New_York");
+ time_zone::civil_transition trans;
+
+ auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz);
+ EXPECT_TRUE(tz.next_transition(tp, &trans));
+ EXPECT_EQ(civil_second(2018, 11, 4, 2, 0, 0), trans.from);
+ EXPECT_EQ(civil_second(2018, 11, 4, 1, 0, 0), trans.to);
+
+ tp = time_point<absl::time_internal::cctz::seconds>::max();
+ EXPECT_FALSE(tz.next_transition(tp, &trans));
+
+ tp = time_point<absl::time_internal::cctz::seconds>::min();
+ EXPECT_TRUE(tz.next_transition(tp, &trans));
+ if (trans.from == civil_second(1918, 3, 31, 2, 0, 0)) {
+ // It looks like the tzdata is only 32 bit (probably macOS),
+ // which bottoms out at 1901-12-13T20:45:52+00:00.
+ EXPECT_EQ(civil_second(1918, 3, 31, 3, 0, 0), trans.to);
+ } else {
+ EXPECT_EQ(civil_second(1883, 11, 18, 12, 3, 58), trans.from);
+ EXPECT_EQ(civil_second(1883, 11, 18, 12, 0, 0), trans.to);
+ }
+}
+
+TEST(PrevTransition, AmericaNewYork) {
+ const auto tz = LoadZone("America/New_York");
+ time_zone::civil_transition trans;
+
+ auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz);
+ EXPECT_TRUE(tz.prev_transition(tp, &trans));
+ EXPECT_EQ(civil_second(2018, 3, 11, 2, 0, 0), trans.from);
+ EXPECT_EQ(civil_second(2018, 3, 11, 3, 0, 0), trans.to);
+
+ tp = time_point<absl::time_internal::cctz::seconds>::min();
+ EXPECT_FALSE(tz.prev_transition(tp, &trans));
+
+ tp = time_point<absl::time_internal::cctz::seconds>::max();
+ EXPECT_TRUE(tz.prev_transition(tp, &trans));
+ // We have a transition but we don't know which one.
}
TEST(TimeZoneEdgeCase, AmericaNewYork) {
@@ -989,13 +1164,13 @@ TEST(TimeZoneEdgeCase, AmericaNewYork) {
// Spring 1:59:59 -> 3:00:00
auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -5 * 3600, false, "EST");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -4 * 3600, true, "EDT");
// Fall 1:59:59 -> 1:00:00
tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -4 * 3600, true, "EDT");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -5 * 3600, false, "EST");
}
@@ -1005,13 +1180,13 @@ TEST(TimeZoneEdgeCase, AmericaLosAngeles) {
// Spring 1:59:59 -> 3:00:00
auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -8 * 3600, false, "PST");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -7 * 3600, true, "PDT");
// Fall 1:59:59 -> 1:00:00
tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, true, "PDT");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -8 * 3600, false, "PST");
}
@@ -1021,13 +1196,13 @@ TEST(TimeZoneEdgeCase, ArizonaNoTransition) {
// No transition in Spring.
auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -7 * 3600, false, "MST");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 3, 10, 2, 0, 0, -7 * 3600, false, "MST");
// No transition in Fall.
tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, false, "MST");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 11, 3, 2, 0, 0, -7 * 3600, false, "MST");
}
@@ -1040,7 +1215,7 @@ TEST(TimeZoneEdgeCase, AsiaKathmandu) {
// 504901800 == Wed, 1 Jan 1986 00:15:00 +0545 (+0545)
auto tp = convert(civil_second(1985, 12, 31, 23, 59, 59), tz);
ExpectTime(tp, tz, 1985, 12, 31, 23, 59, 59, 5.5 * 3600, false, "+0530");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 1986, 1, 1, 0, 15, 0, 5.75 * 3600, false, "+0545");
}
@@ -1053,14 +1228,14 @@ TEST(TimeZoneEdgeCase, PacificChatham) {
// 1365256800 == Sun, 7 Apr 2013 02:45:00 +1245 (+1245)
auto tp = convert(civil_second(2013, 4, 7, 3, 44, 59), tz);
ExpectTime(tp, tz, 2013, 4, 7, 3, 44, 59, 13.75 * 3600, true, "+1345");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 4, 7, 2, 45, 0, 12.75 * 3600, false, "+1245");
// 1380376799 == Sun, 29 Sep 2013 02:44:59 +1245 (+1245)
// 1380376800 == Sun, 29 Sep 2013 03:45:00 +1345 (+1345)
tp = convert(civil_second(2013, 9, 29, 2, 44, 59), tz);
ExpectTime(tp, tz, 2013, 9, 29, 2, 44, 59, 12.75 * 3600, false, "+1245");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 9, 29, 3, 45, 0, 13.75 * 3600, true, "+1345");
}
@@ -1073,14 +1248,14 @@ TEST(TimeZoneEdgeCase, AustraliaLordHowe) {
// 1365260400 == Sun, 7 Apr 2013 01:30:00 +1030 (+1030)
auto tp = convert(civil_second(2013, 4, 7, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 4, 7, 1, 59, 59, 11 * 3600, true, "+11");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 4, 7, 1, 30, 0, 10.5 * 3600, false, "+1030");
// 1380986999 == Sun, 6 Oct 2013 01:59:59 +1030 (+1030)
// 1380987000 == Sun, 6 Oct 2013 02:30:00 +1100 (+11)
tp = convert(civil_second(2013, 10, 6, 1, 59, 59), tz);
ExpectTime(tp, tz, 2013, 10, 6, 1, 59, 59, 10.5 * 3600, false, "+1030");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2013, 10, 6, 2, 30, 0, 11 * 3600, true, "+11");
}
@@ -1098,7 +1273,7 @@ TEST(TimeZoneEdgeCase, PacificApia) {
auto tp = convert(civil_second(2011, 12, 29, 23, 59, 59), tz);
ExpectTime(tp, tz, 2011, 12, 29, 23, 59, 59, -10 * 3600, true, "-10");
EXPECT_EQ(363, get_yearday(civil_day(convert(tp, tz))));
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2011, 12, 31, 0, 0, 0, 14 * 3600, true, "+14");
EXPECT_EQ(365, get_yearday(civil_day(convert(tp, tz))));
}
@@ -1106,35 +1281,31 @@ TEST(TimeZoneEdgeCase, PacificApia) {
TEST(TimeZoneEdgeCase, AfricaCairo) {
const time_zone tz = LoadZone("Africa/Cairo");
-#if defined(__ANDROID__) && __ANDROID_API__ < 21
- // Only Android 'L' and beyond have this tz2014c transition.
-#else
- // An interesting case of midnight not existing.
- //
- // 1400191199 == Thu, 15 May 2014 23:59:59 +0200 (EET)
- // 1400191200 == Fri, 16 May 2014 01:00:00 +0300 (EEST)
- auto tp = convert(civil_second(2014, 5, 15, 23, 59, 59), tz);
- ExpectTime(tp, tz, 2014, 5, 15, 23, 59, 59, 2 * 3600, false, "EET");
- tp += seconds(1);
- ExpectTime(tp, tz, 2014, 5, 16, 1, 0, 0, 3 * 3600, true, "EEST");
-#endif
+ if (VersionCmp(tz, "2014c") >= 0) {
+ // An interesting case of midnight not existing.
+ //
+ // 1400191199 == Thu, 15 May 2014 23:59:59 +0200 (EET)
+ // 1400191200 == Fri, 16 May 2014 01:00:00 +0300 (EEST)
+ auto tp = convert(civil_second(2014, 5, 15, 23, 59, 59), tz);
+ ExpectTime(tp, tz, 2014, 5, 15, 23, 59, 59, 2 * 3600, false, "EET");
+ tp += absl::time_internal::cctz::seconds(1);
+ ExpectTime(tp, tz, 2014, 5, 16, 1, 0, 0, 3 * 3600, true, "EEST");
+ }
}
TEST(TimeZoneEdgeCase, AfricaMonrovia) {
const time_zone tz = LoadZone("Africa/Monrovia");
-#if defined(__ANDROID__) && __ANDROID_API__ < 26
- // Only Android 'O' and beyond have this tz2017b transition.
-#else
- // Strange offset change -00:44:30 -> +00:00:00 (non-DST)
- //
- // 63593069 == Thu, 6 Jan 1972 23:59:59 -0044 (MMT)
- // 63593070 == Fri, 7 Jan 1972 00:44:30 +0000 (GMT)
- auto tp = convert(civil_second(1972, 1, 6, 23, 59, 59), tz);
- ExpectTime(tp, tz, 1972, 1, 6, 23, 59, 59, -44.5 * 60, false, "MMT");
- tp += seconds(1);
- ExpectTime(tp, tz, 1972, 1, 7, 0, 44, 30, 0 * 60, false, "GMT");
-#endif
+ if (VersionCmp(tz, "2017b") >= 0) {
+ // Strange offset change -00:44:30 -> +00:00:00 (non-DST)
+ //
+ // 63593069 == Thu, 6 Jan 1972 23:59:59 -0044 (MMT)
+ // 63593070 == Fri, 7 Jan 1972 00:44:30 +0000 (GMT)
+ auto tp = convert(civil_second(1972, 1, 6, 23, 59, 59), tz);
+ ExpectTime(tp, tz, 1972, 1, 6, 23, 59, 59, -44.5 * 60, false, "MMT");
+ tp += absl::time_internal::cctz::seconds(1);
+ ExpectTime(tp, tz, 1972, 1, 7, 0, 44, 30, 0 * 60, false, "GMT");
+ }
}
TEST(TimeZoneEdgeCase, AmericaJamaica) {
@@ -1146,30 +1317,31 @@ TEST(TimeZoneEdgeCase, AmericaJamaica) {
const time_zone tz = LoadZone("America/Jamaica");
// Before the first transition.
- auto tp = convert(civil_second(1889, 12, 31, 0, 0, 0), tz);
-#if AMERICA_JAMAICA_PRE_1913_OFFSET_FIX
- // Commit 907241e: Fix off-by-1 error for Jamaica and T&C before 1913.
- // Until that commit has made its way into a full release we avoid the
- // expectations on the -18430 offset below. TODO: Uncomment these.
- ExpectTime(tp, tz, 1889, 12, 31, 0, 0, 0, -18430, false,
- tz.lookup(tp).abbr);
-
- // Over the first (abbreviation-change only) transition.
- // -2524503170 == Tue, 31 Dec 1889 23:59:59 -0507 (LMT)
- // -2524503169 == Wed, 1 Jan 1890 00:00:00 -0507 (KMT)
- tp = convert(civil_second(1889, 12, 31, 23, 59, 59), tz);
- ExpectTime(tp, tz, 1889, 12, 31, 23, 59, 59, -18430, false,
- tz.lookup(tp).abbr);
- tp += seconds(1);
- ExpectTime(tp, tz, 1890, 1, 1, 0, 0, 0, -18430, false, "KMT");
-#endif
+ if (!tz.version().empty() && VersionCmp(tz, "2018d") >= 0) {
+ // We avoid the expectations on the -18430 offset below unless we are
+ // certain we have commit 907241e (Fix off-by-1 error for Jamaica and
+ // T&C before 1913) from 2018d. TODO: Remove the "version() not empty"
+ // part when 2018d is generally available from /usr/share/zoneinfo.
+ auto tp = convert(civil_second(1889, 12, 31, 0, 0, 0), tz);
+ ExpectTime(tp, tz, 1889, 12, 31, 0, 0, 0, -18430, false,
+ tz.lookup(tp).abbr);
+
+ // Over the first (abbreviation-change only) transition.
+ // -2524503170 == Tue, 31 Dec 1889 23:59:59 -0507 (LMT)
+ // -2524503169 == Wed, 1 Jan 1890 00:00:00 -0507 (KMT)
+ tp = convert(civil_second(1889, 12, 31, 23, 59, 59), tz);
+ ExpectTime(tp, tz, 1889, 12, 31, 23, 59, 59, -18430, false,
+ tz.lookup(tp).abbr);
+ tp += absl::time_internal::cctz::seconds(1);
+ ExpectTime(tp, tz, 1890, 1, 1, 0, 0, 0, -18430, false, "KMT");
+ }
// Over the last (DST) transition.
// 436341599 == Sun, 30 Oct 1983 01:59:59 -0400 (EDT)
// 436341600 == Sun, 30 Oct 1983 01:00:00 -0500 (EST)
- tp = convert(civil_second(1983, 10, 30, 1, 59, 59), tz);
+ auto tp = convert(civil_second(1983, 10, 30, 1, 59, 59), tz);
ExpectTime(tp, tz, 1983, 10, 30, 1, 59, 59, -4 * 3600, true, "EDT");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 1983, 10, 30, 1, 0, 0, -5 * 3600, false, "EST");
// After the last transition.
@@ -1190,7 +1362,7 @@ TEST(TimeZoneEdgeCase, WET) {
// 228877200 == Sun, 3 Apr 1977 02:00:00 +0100 (WEST)
tp = convert(civil_second(1977, 4, 3, 0, 59, 59), tz);
ExpectTime(tp, tz, 1977, 4, 3, 0, 59, 59, 0, false, "WET");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST");
// A non-existent time within the first transition.
@@ -1212,12 +1384,12 @@ TEST(TimeZoneEdgeCase, FixedOffsets) {
const time_zone gmtm5 = LoadZone("Etc/GMT+5"); // -0500
auto tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtm5);
ExpectTime(tp, gmtm5, 1970, 1, 1, 0, 0, 0, -5 * 3600, false, "-05");
- EXPECT_EQ(system_clock::from_time_t(5 * 3600), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(5 * 3600), tp);
const time_zone gmtp5 = LoadZone("Etc/GMT-5"); // +0500
tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtp5);
ExpectTime(tp, gmtp5, 1970, 1, 1, 0, 0, 0, 5 * 3600, false, "+05");
- EXPECT_EQ(system_clock::from_time_t(-5 * 3600), tp);
+ EXPECT_EQ(chrono::system_clock::from_time_t(-5 * 3600), tp);
}
TEST(TimeZoneEdgeCase, NegativeYear) {
@@ -1226,7 +1398,7 @@ TEST(TimeZoneEdgeCase, NegativeYear) {
auto tp = convert(civil_second(0, 1, 1, 0, 0, 0), tz);
ExpectTime(tp, tz, 0, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC");
EXPECT_EQ(weekday::saturday, get_weekday(civil_day(convert(tp, tz))));
- tp -= seconds(1);
+ tp -= absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, -1, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC");
EXPECT_EQ(weekday::friday, get_weekday(civil_day(convert(tp, tz))));
}
@@ -1240,7 +1412,7 @@ TEST(TimeZoneEdgeCase, UTC32bitLimit) {
// 2147483648 == Tue, 19 Jan 2038 03:14:08 +0000 (UTC)
auto tp = convert(civil_second(2038, 1, 19, 3, 14, 7), tz);
ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 7, 0 * 3600, false, "UTC");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 8, 0 * 3600, false, "UTC");
}
@@ -1253,11 +1425,11 @@ TEST(TimeZoneEdgeCase, UTC5DigitYear) {
// 253402300800 == Sat, 1 Jan 1000 00:00:00 +0000 (UTC)
auto tp = convert(civil_second(9999, 12, 31, 23, 59, 59), tz);
ExpectTime(tp, tz, 9999, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC");
- tp += seconds(1);
+ tp += absl::time_internal::cctz::seconds(1);
ExpectTime(tp, tz, 10000, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC");
}
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_posix.cc b/absl/time/internal/cctz/src/time_zone_posix.cc
index b6cf2875..960133d7 100644
--- a/absl/time/internal/cctz/src/time_zone_posix.cc
+++ b/absl/time/internal/cctz/src/time_zone_posix.cc
@@ -20,7 +20,7 @@
#include <string>
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -153,5 +153,5 @@ bool ParsePosixSpec(const std::string& spec, PosixTimeZone* res) {
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/src/time_zone_posix.h b/absl/time/internal/cctz/src/time_zone_posix.h
index 91443a21..84c39afb 100644
--- a/absl/time/internal/cctz/src/time_zone_posix.h
+++ b/absl/time/internal/cctz/src/time_zone_posix.h
@@ -56,7 +56,7 @@
#include <string>
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
@@ -69,28 +69,38 @@ namespace cctz {
// it would take us to another day, and perhaps week, or even month.
struct PosixTransition {
enum DateFormat { J, N, M };
- struct {
+
+ struct Date {
+ struct NonLeapDay {
+ std::int_fast16_t day; // day of non-leap year [1:365]
+ };
+ struct Day {
+ std::int_fast16_t day; // day of year [0:365]
+ };
+ struct MonthWeekWeekday {
+ std::int_fast8_t month; // month of year [1:12]
+ std::int_fast8_t week; // week of month [1:5] (5==last)
+ std::int_fast8_t weekday; // 0==Sun, ..., 6=Sat
+ };
+
DateFormat fmt;
+
union {
- struct {
- std::int_fast16_t day; // day of non-leap year [1:365]
- } j;
- struct {
- std::int_fast16_t day; // day of year [0:365]
- } n;
- struct {
- std::int_fast8_t month; // month of year [1:12]
- std::int_fast8_t week; // week of month [1:5] (5==last)
- std::int_fast8_t weekday; // 0==Sun, ..., 6=Sat
- } m;
+ NonLeapDay j;
+ Day n;
+ MonthWeekWeekday m;
};
- } date;
- struct {
+ };
+
+ struct Time {
std::int_fast32_t offset; // seconds before/after 00:00:00
- } time;
+ };
+
+ Date date;
+ Time time;
};
-// The entirety of a POSIX-std::string specified time-zone rule. The standard
+// The entirety of a POSIX-string specified time-zone rule. The standard
// abbreviation and offset are always given. If the time zone includes
// daylight saving, then the daylight abbrevation is non-empty and the
// remaining fields are also valid. Note that the start/end transitions
@@ -114,7 +124,7 @@ bool ParsePosixSpec(const std::string& spec, PosixTimeZone* res);
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_
diff --git a/absl/time/internal/cctz/src/tzfile.h b/absl/time/internal/cctz/src/tzfile.h
index 90cfc0c4..4485ba55 100644
--- a/absl/time/internal/cctz/src/tzfile.h
+++ b/absl/time/internal/cctz/src/tzfile.h
@@ -1,3 +1,5 @@
+/* Layout and location of TZif files. */
+
#ifndef TZFILE_H
#define TZFILE_H
diff --git a/absl/time/internal/cctz/src/zone_info_source.cc b/absl/time/internal/cctz/src/zone_info_source.cc
index a73e1c92..61669e7a 100644
--- a/absl/time/internal/cctz/src/zone_info_source.cc
+++ b/absl/time/internal/cctz/src/zone_info_source.cc
@@ -15,20 +15,21 @@
#include "absl/time/internal/cctz/include/cctz/zone_info_source.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz {
// Defined out-of-line to avoid emitting a weak vtable in all TUs.
ZoneInfoSource::~ZoneInfoSource() {}
+std::string ZoneInfoSource::Version() const { return std::string(); }
} // namespace cctz
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz_extension {
@@ -55,20 +56,28 @@ ZoneInfoSourceFactory default_factory = DefaultFactory;
#if defined(_M_IX86)
#pragma comment( \
linker, \
- "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@lts_2018_06_20@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZA=?default_factory@cctz_extension@time_internal@lts_2018_06_20@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZA")
+ "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZA=?default_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZA")
#elif defined(_M_IA_64) || defined(_M_AMD64)
#pragma comment( \
linker, \
- "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@lts_2018_06_20@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZEA=?default_factory@cctz_extension@time_internal@lts_2018_06_20@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_06_20@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZEA")
+ "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZEA=?default_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZEA")
#else
#error Unsupported MSVC platform
#endif
-#else
+#else // _MSC_VER
+#if !defined(__has_attribute)
+#define __has_attribute(x) 0
+#endif
+#if __has_attribute(weak) || defined(__GNUC__)
ZoneInfoSourceFactory zone_info_source_factory
__attribute__((weak)) = DefaultFactory;
+#else
+// Make it a "strong" definition if we have no other choice.
+ZoneInfoSourceFactory zone_info_source_factory = DefaultFactory;
+#endif
#endif // _MSC_VER
} // namespace cctz_extension
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/cctz/testdata/version b/absl/time/internal/cctz/testdata/version
index fe86b5cc..ac954d74 100644
--- a/absl/time/internal/cctz/testdata/version
+++ b/absl/time/internal/cctz/testdata/version
@@ -1 +1 @@
-2018e-2-g99dd695
+2018g-9-gf0d2759
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan
index 6fd1af32..65d19ec2 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Accra b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Accra
index 8726e80d..eaaa818f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Accra
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Accra
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Ababa b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Ababa
index 39631f21..6e19601f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Ababa
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Ababa
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiers b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiers
index 2a25f3ac..a5867a67 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiers
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiers
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmara b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmara
index 39631f21..6e19601f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmara
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmara
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmera b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmera
index 39631f21..6e19601f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmera
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmera
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamako b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamako
index 6fd1af32..65d19ec2 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamako
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamako
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bangui b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bangui
index b1c97cc5..cbdc0450 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bangui
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bangui
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjul b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjul
index 6fd1af32..65d19ec2 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjul
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjul
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissau b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissau
index 8e32be3e..82ea5aaf 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissau
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissau
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyre b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyre
index 5b871dba..31cfad77 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyre
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyre
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzaville b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzaville
index b1c97cc5..cbdc0450 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzaville
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzaville
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumbura b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumbura
index 5b871dba..31cfad77 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumbura
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumbura
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairo b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairo
index ba097504..0272fa1b 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairo
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairo
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablanca b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablanca
index 65de3445..4c570548 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablanca
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablanca
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceuta b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceuta
index aaa657ff..dd75e3e6 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceuta
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceuta
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakry b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakry
index 6fd1af32..65d19ec2 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakry
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakry
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakar b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakar
index 6fd1af32..65d19ec2 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakar
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakar
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaam b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaam
index 39631f21..6e19601f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaam
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaam
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Djibouti b/absl/time/internal/cctz/testdata/zoneinfo/Africa/Djibouti
index 39631f21..6e19601f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Africa/Djibouti
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index a2e1b364..09c876a6 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ho_Chi_Minh b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ho_Chi_Minh
index 92642679..eab94fe8 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hong_Kong b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hong_Kong
index dc9058e4..8e5c5813 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hovd b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hovd
index f367a550..8eb5f647 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Irkutsk b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Irkutsk
index 84136366..e8c53c0d 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Istanbul b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Istanbul
index 9a53b3a3..833d4eba 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jakarta b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jakarta
index 37b4edde..673d4801 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jayapura b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jayapura
index 39ddc843..a4c08297 100644
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index df511993..2d14c999 100644
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index 80429ec4..a22cf592 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kamchatka b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kamchatka
index fab27def..b9ed49ca 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Karachi b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Karachi
index b7dcaab8..337e1d58 100644
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index b44a1e19..0342b433 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kathmandu b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kathmandu
index 0cbd2952..2f810b12 100644
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index 0cbd2952..2f810b12 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Khandyga b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Khandyga
index 91836953..2b2f5bfa 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kolkata b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kolkata
index b57972dd..e1cfcb8d 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Krasnoyarsk b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Krasnoyarsk
index faec35d3..59efd24c 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuala_Lumpur b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuala_Lumpur
index 5c95ebcd..6d7d47b9 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuala_Lumpur
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuching b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuching
index 62b53892..4878622d 100644
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index e71bc4e8..b2f9a255 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Macao b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Macao
index 2c20a326..d801000d 100644
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index 2c20a326..d801000d 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Magadan b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Magadan
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Makassar b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Makassar
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Manila b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Manila
index 06859a70..2c9220c9 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Muscat b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Muscat
index c12f31a1..7880d5d7 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Asia/Novokuznetsk b/absl/time/internal/cctz/testdata/zoneinfo/Asia/Novokuznetsk
index ed4b2482..2576a3b0 100644
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index b8eb58d1..e36aec47 100644
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index ec98c62b..9377d038 100644
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+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Eastern
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Hawaii b/absl/time/internal/cctz/testdata/zoneinfo/US/Hawaii
index bd855772..c7cd0601 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/US/Hawaii
+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Hawaii
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starke b/absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starke
index cc785da9..fcd408d7 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starke
+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starke
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Michigan b/absl/time/internal/cctz/testdata/zoneinfo/US/Michigan
index e3ea5c3e..5e022605 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/US/Michigan
+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Michigan
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Mountain b/absl/time/internal/cctz/testdata/zoneinfo/US/Mountain
index 7fc66917..5fbe26b1 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/US/Mountain
+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Mountain
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Pacific b/absl/time/internal/cctz/testdata/zoneinfo/US/Pacific
index c0ce4402..9dad4f4c 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/US/Pacific
+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Pacific
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa b/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa
index 3e38e97c..72707b5e 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa
+++ b/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/UTC b/absl/time/internal/cctz/testdata/zoneinfo/UTC
index c3b97f1a..5583f5b0 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/UTC
+++ b/absl/time/internal/cctz/testdata/zoneinfo/UTC
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Universal b/absl/time/internal/cctz/testdata/zoneinfo/Universal
index c3b97f1a..5583f5b0 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Universal
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Universal
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/W-SU b/absl/time/internal/cctz/testdata/zoneinfo/W-SU
index 906bd05f..ddb3f4e9 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/W-SU
+++ b/absl/time/internal/cctz/testdata/zoneinfo/W-SU
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/WET b/absl/time/internal/cctz/testdata/zoneinfo/WET
index 444a1933..9b03a17f 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/WET
+++ b/absl/time/internal/cctz/testdata/zoneinfo/WET
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Zulu b/absl/time/internal/cctz/testdata/zoneinfo/Zulu
index c3b97f1a..5583f5b0 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/Zulu
+++ b/absl/time/internal/cctz/testdata/zoneinfo/Zulu
Binary files differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab b/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
index 2d90ed72..2729e6e8 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
+++ b/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
@@ -1,35 +1,35 @@
-# tz zone descriptions
+# tzdb timezone descriptions
#
# This file is in the public domain.
#
-# From Paul Eggert (2017-10-01):
-# This file contains a table where each row stands for a zone where
-# civil time stamps have agreed since 1970. Columns are separated by
+# From Paul Eggert (2018-06-27):
+# This file contains a table where each row stands for a timezone where
+# civil timestamps have agreed since 1970. Columns are separated by
# a single tab. Lines beginning with '#' are comments. All text uses
# UTF-8 encoding. The columns of the table are as follows:
#
-# 1. The countries that overlap the zone, as a comma-separated list
+# 1. The countries that overlap the timezone, as a comma-separated list
# of ISO 3166 2-character country codes. See the file 'iso3166.tab'.
-# 2. Latitude and longitude of the zone's principal location
+# 2. Latitude and longitude of the timezone's principal location
# in ISO 6709 sign-degrees-minutes-seconds format,
# either ±DDMM±DDDMM or ±DDMMSS±DDDMMSS,
# first latitude (+ is north), then longitude (+ is east).
-# 3. Zone name used in value of TZ environment variable.
-# Please see the theory.html file for how zone names are chosen.
-# If multiple zones overlap a country, each has a row in the
+# 3. Timezone name used in value of TZ environment variable.
+# Please see the theory.html file for how these names are chosen.
+# If multiple timezones overlap a country, each has a row in the
# table, with each column 1 containing the country code.
-# 4. Comments; present if and only if a country has multiple zones.
+# 4. Comments; present if and only if a country has multiple timezones.
#
-# If a zone covers multiple countries, the most-populous city is used,
+# If a timezone covers multiple countries, the most-populous city is used,
# and that country is listed first in column 1; any other countries
# are listed alphabetically by country code. The table is sorted
# first by country code, then (if possible) by an order within the
# country that (1) makes some geographical sense, and (2) puts the
-# most populous zones first, where that does not contradict (1).
+# most populous timezones first, where that does not contradict (1).
#
-# This table is intended as an aid for users, to help them select time
-# zone data entries appropriate for their practical needs. It is not
-# intended to take or endorse any position on legal or territorial claims.
+# This table is intended as an aid for users, to help them select timezones
+# appropriate for their practical needs. It is not intended to take or
+# endorse any position on legal or territorial claims.
#
#country-
#codes coordinates TZ comments
@@ -231,7 +231,7 @@ MM +1647+09610 Asia/Yangon
MN +4755+10653 Asia/Ulaanbaatar Mongolia (most areas)
MN +4801+09139 Asia/Hovd Bayan-Ölgii, Govi-Altai, Hovd, Uvs, Zavkhan
MN +4804+11430 Asia/Choibalsan Dornod, Sükhbaatar
-MO +2214+11335 Asia/Macau
+MO +221150+1133230 Asia/Macau
MQ +1436-06105 America/Martinique
MT +3554+01431 Europe/Malta
MU -2010+05730 Indian/Mauritius
@@ -289,9 +289,9 @@ RS,BA,HR,ME,MK,SI +4450+02030 Europe/Belgrade
RU +5443+02030 Europe/Kaliningrad MSK-01 - Kaliningrad
RU +554521+0373704 Europe/Moscow MSK+00 - Moscow area
RU +4457+03406 Europe/Simferopol MSK+00 - Crimea
-RU +4844+04425 Europe/Volgograd MSK+00 - Volgograd
RU +5836+04939 Europe/Kirov MSK+00 - Kirov
RU +4621+04803 Europe/Astrakhan MSK+01 - Astrakhan
+RU +4844+04425 Europe/Volgograd MSK+01 - Volgograd
RU +5134+04602 Europe/Saratov MSK+01 - Saratov
RU +5420+04824 Europe/Ulyanovsk MSK+01 - Ulyanovsk
RU +5312+05009 Europe/Samara MSK+01 - Samara, Udmurtia
diff --git a/absl/time/internal/get_current_time_chrono.inc b/absl/time/internal/get_current_time_chrono.inc
new file mode 100644
index 00000000..ba016e3e
--- /dev/null
+++ b/absl/time/internal/get_current_time_chrono.inc
@@ -0,0 +1,31 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <chrono>
+#include <cstdint>
+
+namespace absl {
+inline namespace lts_2018_12_18 {
+namespace time_internal {
+
+static int64_t GetCurrentTimeNanosFromSystem() {
+ return std::chrono::duration_cast<std::chrono::nanoseconds>(
+ std::chrono::system_clock::now() -
+ std::chrono::system_clock::from_time_t(0))
+ .count();
+}
+
+} // namespace time_internal
+} // inline namespace lts_2018_12_18
+} // namespace absl
diff --git a/absl/time/internal/get_current_time_ios.inc b/absl/time/internal/get_current_time_ios.inc
deleted file mode 100644
index abd43cb4..00000000
--- a/absl/time/internal/get_current_time_ios.inc
+++ /dev/null
@@ -1,82 +0,0 @@
-#include "absl/time/clock.h"
-
-#include <sys/time.h>
-#include <ctime>
-#include <cstdint>
-
-#include "absl/base/internal/raw_logging.h"
-
-// These are not defined in the Xcode 7.3.1 SDK Headers.
-// Once we are no longer supporting Xcode 7.3.1 we can
-// remove these.
-#ifndef __WATCHOS_3_0
-#define __WATCHOS_3_0 30000
-#endif
-
-#ifndef __TVOS_10_0
-#define __TVOS_10_0 100000
-#endif
-
-#ifndef __IPHONE_10_0
-#define __IPHONE_10_0 100000
-#endif
-
-#ifndef __MAC_10_12
-#define __MAC_10_12 101200
-#endif
-
-namespace absl {
-inline namespace lts_2018_06_20 {
-namespace time_internal {
-
-static int64_t GetCurrentTimeNanosFromSystem() {
-#if (__MAC_OS_X_VERSION_MAX_ALLOWED >= __MAC_10_12) || \
- (__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0) || \
- (__WATCH_OS_VERSION_MAX_ALLOWED >= __WATCHOS_3_0) || \
- (__TV_OS_VERSION_MAX_ALLOWED >= __TVOS_10_0)
- // clock_gettime_nsec_np is not defined on SDKs before Xcode 8.0.
- // This preprocessor logic is based upon __CLOCK_AVAILABILITY in
- // usr/include/time.h. Once we are no longer supporting Xcode 7.3.1 we can
- // remove this #if.
- // We must continue to check if it is defined until we are sure that ALL the
- // platforms we are shipping on support it.
- // clock_gettime_nsec_np is preferred because it may give higher accuracy than
- // gettimeofday in future Apple operating systems.
- // Currently (macOS 10.12/iOS 10.2) clock_gettime_nsec_np accuracy is
- // microsecond accuracy (i.e. equivalent to gettimeofday).
- if (&clock_gettime_nsec_np != nullptr) {
- return clock_gettime_nsec_np(CLOCK_REALTIME);
- }
-#endif
-#if (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
- (__MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_12)) || \
- (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && \
- (__IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_10_0)) || \
- (defined(__WATCH_OS_VERSION_MIN_REQUIRED) && \
- (__WATCH_OS_VERSION_MIN_REQUIRED < __WATCHOS_3_0)) || \
- (defined(__TV_OS_VERSION_MIN_REQUIRED) && \
- (__TV_OS_VERSION_MIN_REQUIRED < __TVOS_10_0))
- // We need this block in 2 different cases:
- // a) where we are compiling with Xcode 7 in which case the block above
- // will not be compiled in, and this is the only block executed.
- // b) where we are compiling with Xcode 8+ but supporting operating systems
- // that do not define clock_gettime_nsec_np, so this is in effect
- // an else block to the block above.
- // This block will not be compiled if the min supported version is
- // guaranteed to supply clock_gettime_nsec_np.
- //
- // Once we know that clock_gettime_nsec_np is in the SDK *AND* exists on
- // all the platforms we support, we can remove both this block and alter the
- // block above to just call clock_gettime_nsec_np directly.
- const int64_t kNanosPerSecond = 1000 * 1000 * 1000;
- const int64_t kNanosPerMicrosecond = 1000;
- struct timeval tp;
- ABSL_RAW_CHECK(gettimeofday(&tp, nullptr) == 0, "Failed gettimeofday");
- return (int64_t{tp.tv_sec} * kNanosPerSecond +
- int64_t{tp.tv_usec} * kNanosPerMicrosecond);
-#endif
-}
-
-} // namespace time_internal
-} // inline namespace lts_2018_06_20
-} // namespace absl
diff --git a/absl/time/internal/get_current_time_posix.inc b/absl/time/internal/get_current_time_posix.inc
index dfbcf8a6..3ff45c4a 100644
--- a/absl/time/internal/get_current_time_posix.inc
+++ b/absl/time/internal/get_current_time_posix.inc
@@ -7,7 +7,7 @@
#include "absl/base/internal/raw_logging.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
static int64_t GetCurrentTimeNanosFromSystem() {
@@ -20,5 +20,5 @@ static int64_t GetCurrentTimeNanosFromSystem() {
}
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/get_current_time_windows.inc b/absl/time/internal/get_current_time_windows.inc
deleted file mode 100644
index 273d2d80..00000000
--- a/absl/time/internal/get_current_time_windows.inc
+++ /dev/null
@@ -1,19 +0,0 @@
-#include "absl/time/clock.h"
-
-#include <chrono>
-#include <cstdint>
-
-namespace absl {
-inline namespace lts_2018_06_20 {
-namespace time_internal {
-
-static int64_t GetCurrentTimeNanosFromSystem() {
- return std::chrono::duration_cast<std::chrono::nanoseconds>(
- std::chrono::system_clock::now() -
- std::chrono::system_clock::from_time_t(0))
- .count();
-}
-
-} // namespace time_internal
-} // inline namespace lts_2018_06_20
-} // namespace absl
diff --git a/absl/time/internal/test_util.cc b/absl/time/internal/test_util.cc
index 1cc89b5e..69530e64 100644
--- a/absl/time/internal/test_util.cc
+++ b/absl/time/internal/test_util.cc
@@ -24,15 +24,9 @@
namespace cctz = absl::time_internal::cctz;
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
-#if GTEST_USES_SIMPLE_RE
-extern const char kZoneAbbrRE[] = ".*"; // just punt
-#else
-extern const char kZoneAbbrRE[] = "[A-Za-z]{3,4}|[-+][0-9]{2}([0-9]{2})?";
-#endif
-
TimeZone LoadTimeZone(const std::string& name) {
TimeZone tz;
ABSL_RAW_CHECK(LoadTimeZone(name, &tz), name.c_str());
@@ -40,11 +34,11 @@ TimeZone LoadTimeZone(const std::string& name) {
}
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
namespace cctz_extension {
namespace {
@@ -129,5 +123,5 @@ ZoneInfoSourceFactory zone_info_source_factory = TestFactory;
} // namespace cctz_extension
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/internal/test_util.h b/absl/time/internal/test_util.h
index fb65f9bd..31ec18e4 100644
--- a/absl/time/internal/test_util.h
+++ b/absl/time/internal/test_util.h
@@ -17,41 +17,17 @@
#include <string>
-#include "gmock/gmock.h"
-#include "gtest/gtest.h"
#include "absl/time/time.h"
-// This helper is a macro so that failed expectations show up with the
-// correct line numbers.
-//
-// This is for internal testing of the Base Time library itself. This is not
-// part of a public API.
-#define ABSL_INTERNAL_EXPECT_TIME(bd, y, m, d, h, min, s, off, isdst) \
- do { \
- EXPECT_EQ(y, bd.year); \
- EXPECT_EQ(m, bd.month); \
- EXPECT_EQ(d, bd.day); \
- EXPECT_EQ(h, bd.hour); \
- EXPECT_EQ(min, bd.minute); \
- EXPECT_EQ(s, bd.second); \
- EXPECT_EQ(off, bd.offset); \
- EXPECT_EQ(isdst, bd.is_dst); \
- EXPECT_THAT(bd.zone_abbr, \
- testing::MatchesRegex(absl::time_internal::kZoneAbbrRE)); \
- } while (0)
-
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace time_internal {
-// A regular expression that matches all zone abbreviations (%Z).
-extern const char kZoneAbbrRE[];
-
// Loads the named timezone, but dies on any failure.
absl::TimeZone LoadTimeZone(const std::string& name);
} // namespace time_internal
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_INTERNAL_TEST_UTIL_H_
diff --git a/absl/time/time.cc b/absl/time/time.cc
index 76ce12c9..e60857e2 100644
--- a/absl/time/time.cc
+++ b/absl/time/time.cc
@@ -22,13 +22,14 @@
// NOTE: To keep type verbosity to a minimum, the following variable naming
// conventions are used throughout this file.
//
-// cz: A cctz::time_zone
// tz: An absl::TimeZone
+// ci: An absl::TimeZone::CivilInfo
+// ti: An absl::TimeZone::TimeInfo
+// cd: An absl::CivilDay or a cctz::civil_day
+// cs: An absl::CivilSecond or a cctz::civil_second
+// bd: An absl::Time::Breakdown
// cl: A cctz::time_zone::civil_lookup
// al: A cctz::time_zone::absolute_lookup
-// cd: A cctz::civil_day
-// cs: A cctz::civil_second
-// bd: An absl::Time::Breakdown
#include "absl/time/time.h"
@@ -41,12 +42,12 @@
namespace cctz = absl::time_internal::cctz;
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
namespace {
-inline cctz::time_point<cctz::sys_seconds> unix_epoch() {
- return std::chrono::time_point_cast<cctz::sys_seconds>(
+inline cctz::time_point<cctz::seconds> unix_epoch() {
+ return std::chrono::time_point_cast<cctz::seconds>(
std::chrono::system_clock::from_time_t(0));
}
@@ -76,7 +77,7 @@ inline absl::Time::Breakdown InfiniteFutureBreakdown() {
return bd;
}
-inline Time::Breakdown InfinitePastBreakdown() {
+inline absl::Time::Breakdown InfinitePastBreakdown() {
Time::Breakdown bd;
bd.year = std::numeric_limits<int64_t>::min();
bd.month = 1;
@@ -93,6 +94,26 @@ inline Time::Breakdown InfinitePastBreakdown() {
return bd;
}
+inline absl::TimeZone::CivilInfo InfiniteFutureCivilInfo() {
+ TimeZone::CivilInfo ci;
+ ci.cs = CivilSecond::max();
+ ci.subsecond = InfiniteDuration();
+ ci.offset = 0;
+ ci.is_dst = false;
+ ci.zone_abbr = "-00";
+ return ci;
+}
+
+inline absl::TimeZone::CivilInfo InfinitePastCivilInfo() {
+ TimeZone::CivilInfo ci;
+ ci.cs = CivilSecond::min();
+ ci.subsecond = -InfiniteDuration();
+ ci.offset = 0;
+ ci.is_dst = false;
+ ci.zone_abbr = "-00";
+ return ci;
+}
+
inline absl::TimeConversion InfiniteFutureTimeConversion() {
absl::TimeConversion tc;
tc.pre = tc.trans = tc.post = absl::InfiniteFuture();
@@ -111,12 +132,12 @@ inline TimeConversion InfinitePastTimeConversion() {
// Makes a Time from sec, overflowing to InfiniteFuture/InfinitePast as
// necessary. If sec is min/max, then consult cs+tz to check for overlow.
-Time MakeTimeWithOverflow(const cctz::time_point<cctz::sys_seconds>& sec,
+Time MakeTimeWithOverflow(const cctz::time_point<cctz::seconds>& sec,
const cctz::civil_second& cs,
const cctz::time_zone& tz,
bool* normalized = nullptr) {
- const auto max = cctz::time_point<cctz::sys_seconds>::max();
- const auto min = cctz::time_point<cctz::sys_seconds>::min();
+ const auto max = cctz::time_point<cctz::seconds>::max();
+ const auto min = cctz::time_point<cctz::seconds>::min();
if (sec == max) {
const auto al = tz.lookup(max);
if (cs > al.cs) {
@@ -135,19 +156,6 @@ Time MakeTimeWithOverflow(const cctz::time_point<cctz::sys_seconds>& sec,
return time_internal::FromUnixDuration(time_internal::MakeDuration(hi));
}
-inline absl::TimeConversion::Kind MapKind(
- const cctz::time_zone::civil_lookup::civil_kind& kind) {
- switch (kind) {
- case cctz::time_zone::civil_lookup::UNIQUE:
- return absl::TimeConversion::UNIQUE;
- case cctz::time_zone::civil_lookup::SKIPPED:
- return absl::TimeConversion::SKIPPED;
- case cctz::time_zone::civil_lookup::REPEATED:
- return absl::TimeConversion::REPEATED;
- }
- return absl::TimeConversion::UNIQUE;
-}
-
// Returns Mon=1..Sun=7.
inline int MapWeekday(const cctz::weekday& wd) {
switch (wd) {
@@ -169,14 +177,31 @@ inline int MapWeekday(const cctz::weekday& wd) {
return 1;
}
+bool FindTransition(const cctz::time_zone& tz,
+ bool (cctz::time_zone::*find_transition)(
+ const cctz::time_point<cctz::seconds>& tp,
+ cctz::time_zone::civil_transition* trans) const,
+ Time t, TimeZone::CivilTransition* trans) {
+ // Transitions are second-aligned, so we can discard any fractional part.
+ const auto tp = unix_epoch() + cctz::seconds(ToUnixSeconds(t));
+ cctz::time_zone::civil_transition tr;
+ if (!(tz.*find_transition)(tp, &tr)) return false;
+ trans->from = CivilSecond(tr.from);
+ trans->to = CivilSecond(tr.to);
+ return true;
+}
+
} // namespace
+//
+// Time
+//
+
absl::Time::Breakdown Time::In(absl::TimeZone tz) const {
- if (*this == absl::InfiniteFuture()) return absl::InfiniteFutureBreakdown();
- if (*this == absl::InfinitePast()) return absl::InfinitePastBreakdown();
+ if (*this == absl::InfiniteFuture()) return InfiniteFutureBreakdown();
+ if (*this == absl::InfinitePast()) return InfinitePastBreakdown();
- const auto tp =
- unix_epoch() + cctz::sys_seconds(time_internal::GetRepHi(rep_));
+ const auto tp = unix_epoch() + cctz::seconds(time_internal::GetRepHi(rep_));
const auto al = cctz::time_zone(tz).lookup(tp);
const auto cs = al.cs;
const auto cd = cctz::civil_day(cs);
@@ -189,92 +214,18 @@ absl::Time::Breakdown Time::In(absl::TimeZone tz) const {
bd.minute = cs.minute();
bd.second = cs.second();
bd.subsecond = time_internal::MakeDuration(0, time_internal::GetRepLo(rep_));
- bd.weekday = MapWeekday(get_weekday(cd));
- bd.yearday = get_yearday(cd);
+ bd.weekday = MapWeekday(cctz::get_weekday(cd));
+ bd.yearday = cctz::get_yearday(cd);
bd.offset = al.offset;
bd.is_dst = al.is_dst;
bd.zone_abbr = al.abbr;
return bd;
}
-absl::Time FromTM(const struct tm& tm, absl::TimeZone tz) {
- const auto cz = cctz::time_zone(tz);
- const auto cs =
- cctz::civil_second(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
- tm.tm_hour, tm.tm_min, tm.tm_sec);
- const auto cl = cz.lookup(cs);
- const auto tp = tm.tm_isdst == 0 ? cl.post : cl.pre;
- return MakeTimeWithOverflow(tp, cs, cz);
-}
-
-struct tm ToTM(absl::Time t, absl::TimeZone tz) {
- const absl::Time::Breakdown bd = t.In(tz);
- struct tm tm;
- std::memset(&tm, 0, sizeof(tm));
- tm.tm_sec = bd.second;
- tm.tm_min = bd.minute;
- tm.tm_hour = bd.hour;
- tm.tm_mday = bd.day;
- tm.tm_mon = bd.month - 1;
-
- // Saturates tm.tm_year in cases of over/underflow, accounting for the fact
- // that tm.tm_year is years since 1900.
- if (bd.year < std::numeric_limits<int>::min() + 1900) {
- tm.tm_year = std::numeric_limits<int>::min();
- } else if (bd.year > std::numeric_limits<int>::max()) {
- tm.tm_year = std::numeric_limits<int>::max() - 1900;
- } else {
- tm.tm_year = static_cast<int>(bd.year - 1900);
- }
-
- tm.tm_wday = bd.weekday % 7;
- tm.tm_yday = bd.yearday - 1;
- tm.tm_isdst = bd.is_dst ? 1 : 0;
-
- return tm;
-}
-
//
-// Factory functions.
+// Conversions from/to other time types.
//
-absl::TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour,
- int min, int sec, TimeZone tz) {
- // Avoids years that are too extreme for civil_second to normalize.
- if (year > 300000000000) return InfiniteFutureTimeConversion();
- if (year < -300000000000) return InfinitePastTimeConversion();
- const auto cz = cctz::time_zone(tz);
- const auto cs = cctz::civil_second(year, mon, day, hour, min, sec);
- absl::TimeConversion tc;
- tc.normalized = year != cs.year() || mon != cs.month() || day != cs.day() ||
- hour != cs.hour() || min != cs.minute() || sec != cs.second();
- const auto cl = cz.lookup(cs);
- // Converts the civil_lookup struct to a TimeConversion.
- tc.pre = MakeTimeWithOverflow(cl.pre, cs, cz, &tc.normalized);
- tc.trans = MakeTimeWithOverflow(cl.trans, cs, cz, &tc.normalized);
- tc.post = MakeTimeWithOverflow(cl.post, cs, cz, &tc.normalized);
- tc.kind = MapKind(cl.kind);
- return tc;
-}
-
-absl::Time FromDateTime(int64_t year, int mon, int day, int hour, int min,
- int sec, TimeZone tz) {
- if (year > 300000000000) return InfiniteFuture();
- if (year < -300000000000) return InfinitePast();
- const auto cz = cctz::time_zone(tz);
- const auto cs = cctz::civil_second(year, mon, day, hour, min, sec);
- const auto cl = cz.lookup(cs);
- return MakeTimeWithOverflow(cl.pre, cs, cz);
-}
-
-absl::Time TimeFromTimespec(timespec ts) {
- return time_internal::FromUnixDuration(absl::DurationFromTimespec(ts));
-}
-
-absl::Time TimeFromTimeval(timeval tv) {
- return time_internal::FromUnixDuration(absl::DurationFromTimeval(tv));
-}
-
absl::Time FromUDate(double udate) {
return time_internal::FromUnixDuration(absl::Milliseconds(udate));
}
@@ -283,10 +234,6 @@ absl::Time FromUniversal(int64_t universal) {
return absl::UniversalEpoch() + 100 * absl::Nanoseconds(universal);
}
-//
-// Conversion to other time types.
-//
-
int64_t ToUnixNanos(Time t) {
if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 &&
time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 33 == 0) {
@@ -323,6 +270,23 @@ int64_t ToUnixSeconds(Time t) {
time_t ToTimeT(Time t) { return absl::ToTimespec(t).tv_sec; }
+double ToUDate(Time t) {
+ return absl::FDivDuration(time_internal::ToUnixDuration(t),
+ absl::Milliseconds(1));
+}
+
+int64_t ToUniversal(absl::Time t) {
+ return absl::FloorToUnit(t - absl::UniversalEpoch(), absl::Nanoseconds(100));
+}
+
+absl::Time TimeFromTimespec(timespec ts) {
+ return time_internal::FromUnixDuration(absl::DurationFromTimespec(ts));
+}
+
+absl::Time TimeFromTimeval(timeval tv) {
+ return time_internal::FromUnixDuration(absl::DurationFromTimeval(tv));
+}
+
timespec ToTimespec(Time t) {
timespec ts;
absl::Duration d = time_internal::ToUnixDuration(t);
@@ -361,15 +325,6 @@ timeval ToTimeval(Time t) {
return tv;
}
-double ToUDate(Time t) {
- return absl::FDivDuration(time_internal::ToUnixDuration(t),
- absl::Milliseconds(1));
-}
-
-int64_t ToUniversal(absl::Time t) {
- return absl::FloorToUnit(t - absl::UniversalEpoch(), absl::Nanoseconds(100));
-}
-
Time FromChrono(const std::chrono::system_clock::time_point& tp) {
return time_internal::FromUnixDuration(time_internal::FromChrono(
tp - std::chrono::system_clock::from_time_t(0)));
@@ -383,5 +338,150 @@ std::chrono::system_clock::time_point ToChronoTime(absl::Time t) {
time_internal::ToChronoDuration<D>(d);
}
-} // inline namespace lts_2018_06_20
+//
+// TimeZone
+//
+
+absl::TimeZone::CivilInfo TimeZone::At(Time t) const {
+ if (t == absl::InfiniteFuture()) return InfiniteFutureCivilInfo();
+ if (t == absl::InfinitePast()) return InfinitePastCivilInfo();
+
+ const auto ud = time_internal::ToUnixDuration(t);
+ const auto tp = unix_epoch() + cctz::seconds(time_internal::GetRepHi(ud));
+ const auto al = cz_.lookup(tp);
+
+ TimeZone::CivilInfo ci;
+ ci.cs = CivilSecond(al.cs);
+ ci.subsecond = time_internal::MakeDuration(0, time_internal::GetRepLo(ud));
+ ci.offset = al.offset;
+ ci.is_dst = al.is_dst;
+ ci.zone_abbr = al.abbr;
+ return ci;
+}
+
+absl::TimeZone::TimeInfo TimeZone::At(CivilSecond ct) const {
+ const cctz::civil_second cs(ct);
+ const auto cl = cz_.lookup(cs);
+
+ TimeZone::TimeInfo ti;
+ switch (cl.kind) {
+ case cctz::time_zone::civil_lookup::UNIQUE:
+ ti.kind = TimeZone::TimeInfo::UNIQUE;
+ break;
+ case cctz::time_zone::civil_lookup::SKIPPED:
+ ti.kind = TimeZone::TimeInfo::SKIPPED;
+ break;
+ case cctz::time_zone::civil_lookup::REPEATED:
+ ti.kind = TimeZone::TimeInfo::REPEATED;
+ break;
+ }
+ ti.pre = MakeTimeWithOverflow(cl.pre, cs, cz_);
+ ti.trans = MakeTimeWithOverflow(cl.trans, cs, cz_);
+ ti.post = MakeTimeWithOverflow(cl.post, cs, cz_);
+ return ti;
+}
+
+bool TimeZone::NextTransition(Time t, CivilTransition* trans) const {
+ return FindTransition(cz_, &cctz::time_zone::next_transition, t, trans);
+}
+
+bool TimeZone::PrevTransition(Time t, CivilTransition* trans) const {
+ return FindTransition(cz_, &cctz::time_zone::prev_transition, t, trans);
+}
+
+//
+// Conversions involving time zones.
+//
+
+absl::TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour,
+ int min, int sec, TimeZone tz) {
+ // Avoids years that are too extreme for CivilSecond to normalize.
+ if (year > 300000000000) return InfiniteFutureTimeConversion();
+ if (year < -300000000000) return InfinitePastTimeConversion();
+
+ const CivilSecond cs(year, mon, day, hour, min, sec);
+ const auto ti = tz.At(cs);
+
+ TimeConversion tc;
+ tc.pre = ti.pre;
+ tc.trans = ti.trans;
+ tc.post = ti.post;
+ switch (ti.kind) {
+ case TimeZone::TimeInfo::UNIQUE:
+ tc.kind = TimeConversion::UNIQUE;
+ break;
+ case TimeZone::TimeInfo::SKIPPED:
+ tc.kind = TimeConversion::SKIPPED;
+ break;
+ case TimeZone::TimeInfo::REPEATED:
+ tc.kind = TimeConversion::REPEATED;
+ break;
+ }
+ tc.normalized = false;
+ if (year != cs.year() || mon != cs.month() || day != cs.day() ||
+ hour != cs.hour() || min != cs.minute() || sec != cs.second()) {
+ tc.normalized = true;
+ }
+ return tc;
+}
+
+absl::Time FromTM(const struct tm& tm, absl::TimeZone tz) {
+ const CivilSecond cs(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+ tm.tm_hour, tm.tm_min, tm.tm_sec);
+ const auto ti = tz.At(cs);
+ return tm.tm_isdst == 0 ? ti.post : ti.pre;
+}
+
+struct tm ToTM(absl::Time t, absl::TimeZone tz) {
+ struct tm tm = {};
+
+ const auto ci = tz.At(t);
+ const auto& cs = ci.cs;
+ tm.tm_sec = cs.second();
+ tm.tm_min = cs.minute();
+ tm.tm_hour = cs.hour();
+ tm.tm_mday = cs.day();
+ tm.tm_mon = cs.month() - 1;
+
+ // Saturates tm.tm_year in cases of over/underflow, accounting for the fact
+ // that tm.tm_year is years since 1900.
+ if (cs.year() < std::numeric_limits<int>::min() + 1900) {
+ tm.tm_year = std::numeric_limits<int>::min();
+ } else if (cs.year() > std::numeric_limits<int>::max()) {
+ tm.tm_year = std::numeric_limits<int>::max() - 1900;
+ } else {
+ tm.tm_year = static_cast<int>(cs.year() - 1900);
+ }
+
+ const CivilDay cd(cs);
+ switch (GetWeekday(cd)) {
+ case Weekday::sunday:
+ tm.tm_wday = 0;
+ break;
+ case Weekday::monday:
+ tm.tm_wday = 1;
+ break;
+ case Weekday::tuesday:
+ tm.tm_wday = 2;
+ break;
+ case Weekday::wednesday:
+ tm.tm_wday = 3;
+ break;
+ case Weekday::thursday:
+ tm.tm_wday = 4;
+ break;
+ case Weekday::friday:
+ tm.tm_wday = 5;
+ break;
+ case Weekday::saturday:
+ tm.tm_wday = 6;
+ break;
+ }
+ tm.tm_yday = GetYearDay(cd) - 1;
+ tm.tm_isdst = ci.is_dst ? 1 : 0;
+
+ return tm;
+}
+
+} // inline namespace lts_2018_12_18
} // namespace absl
diff --git a/absl/time/time.h b/absl/time/time.h
index 3b5739ff..3afec565 100644
--- a/absl/time/time.h
+++ b/absl/time/time.h
@@ -25,17 +25,29 @@
// * `absl::TimeZone` defines geopolitical time zone regions (as collected
// within the IANA Time Zone database (https://www.iana.org/time-zones)).
//
+// Note: Absolute times are distinct from civil times, which refer to the
+// human-scale time commonly represented by `YYYY-MM-DD hh:mm:ss`. The mapping
+// between absolute and civil times can be specified by use of time zones
+// (`absl::TimeZone` within this API). That is:
+//
+// Civil Time = F(Absolute Time, Time Zone)
+// Absolute Time = G(Civil Time, Time Zone)
+//
+// See civil_time.h for abstractions related to constructing and manipulating
+// civil time.
+//
// Example:
//
// absl::TimeZone nyc;
-//
-// // LoadTimeZone may fail so it's always better to check for success.
+// // LoadTimeZone() may fail so it's always better to check for success.
// if (!absl::LoadTimeZone("America/New_York", &nyc)) {
// // handle error case
// }
//
// // My flight leaves NYC on Jan 2, 2017 at 03:04:05
-// absl::Time takeoff = absl::FromDateTime(2017, 1, 2, 3, 4, 5, nyc);
+// absl::CivilSecond cs(2017, 1, 2, 3, 4, 5);
+// absl::Time takeoff = absl::FromCivil(cs, nyc);
+//
// absl::Duration flight_duration = absl::Hours(21) + absl::Minutes(35);
// absl::Time landing = takeoff + flight_duration;
//
@@ -47,15 +59,17 @@
// "My flight will land in Sydney on %Y-%m-%d at %H:%M:%S",
// landing, syd);
//
+
#ifndef ABSL_TIME_TIME_H_
#define ABSL_TIME_TIME_H_
-#if !defined(_WIN32)
+#if !defined(_MSC_VER)
#include <sys/time.h>
#else
#include <winsock2.h>
#endif
#include <chrono> // NOLINT(build/c++11)
+#include <cmath>
#include <cstdint>
#include <ctime>
#include <ostream>
@@ -65,10 +79,11 @@
#include "absl/base/port.h" // Needed for string vs std::string
#include "absl/strings/string_view.h"
+#include "absl/time/civil_time.h"
#include "absl/time/internal/cctz/include/cctz/time_zone.h"
namespace absl {
-inline namespace lts_2018_06_20 {
+inline namespace lts_2018_12_18 {
class Duration; // Defined below
class Time; // Defined below
@@ -82,6 +97,7 @@ constexpr int64_t GetRepHi(Duration d);
constexpr uint32_t GetRepLo(Duration d);
constexpr Duration MakeDuration(int64_t hi, uint32_t lo);
constexpr Duration MakeDuration(int64_t hi, int64_t lo);
+inline Duration MakePosDoubleDuration(double n);
constexpr int64_t kTicksPerNanosecond = 4;
constexpr int64_t kTicksPerSecond = 1000 * 1000 * 1000 * kTicksPerNanosecond;
template <std::intmax_t N>
@@ -139,6 +155,16 @@ class Duration {
// Value semantics.
constexpr Duration() : rep_hi_(0), rep_lo_(0) {} // zero-length duration
+ // Copyable.
+#if !defined(__clang__) && defined(_MSC_VER) && _MSC_VER < 1910
+ // Explicitly defining the constexpr copy constructor avoids an MSVC bug.
+ constexpr Duration(const Duration& d)
+ : rep_hi_(d.rep_hi_), rep_lo_(d.rep_lo_) {}
+#else
+ constexpr Duration(const Duration& d) = default;
+#endif
+ Duration& operator=(const Duration& d) = default;
+
// Compound assignment operators.
Duration& operator+=(Duration d);
Duration& operator-=(Duration d);
@@ -162,6 +188,11 @@ class Duration {
Duration& operator*=(float r) { return *this *= static_cast<double>(r); }
Duration& operator/=(float r) { return *this /= static_cast<double>(r); }
+ template <typename H>
+ friend H AbslHashValue(H h, Duration d) {
+ return H::combine(std::move(h), d.rep_hi_, d.rep_lo_);
+ }
+
private:
friend constexpr int64_t time_internal::GetRepHi(Duration d);
friend constexpr uint32_t time_internal::GetRepLo(Duration d);
@@ -296,6 +327,42 @@ Duration Floor(Duration d, Duration unit);
// absl::Duration c = absl::Ceil(d, absl::Microseconds(1)); // 123457us
Duration Ceil(Duration d, Duration unit);
+// InfiniteDuration()
+//
+// Returns an infinite `Duration`. To get a `Duration` representing negative
+// infinity, use `-InfiniteDuration()`.
+//
+// Duration arithmetic overflows to +/- infinity and saturates. In general,
+// arithmetic with `Duration` infinities is similar to IEEE 754 infinities
+// except where IEEE 754 NaN would be involved, in which case +/-
+// `InfiniteDuration()` is used in place of a "nan" Duration.
+//
+// Examples:
+//
+// constexpr absl::Duration inf = absl::InfiniteDuration();
+// const absl::Duration d = ... any finite duration ...
+//
+// inf == inf + inf
+// inf == inf + d
+// inf == inf - inf
+// -inf == d - inf
+//
+// inf == d * 1e100
+// inf == inf / 2
+// 0 == d / inf
+// INT64_MAX == inf / d
+//
+// d < inf
+// -inf < d
+//
+// // Division by zero returns infinity, or INT64_MIN/MAX where appropriate.
+// inf == d / 0
+// INT64_MAX == d / absl::ZeroDuration()
+//
+// The examples involving the `/` operator above also apply to `IDivDuration()`
+// and `FDivDuration()`.
+constexpr Duration InfiniteDuration();
+
// Nanoseconds()
// Microseconds()
// Milliseconds()
@@ -306,11 +373,11 @@ Duration Ceil(Duration d, Duration unit);
// Factory functions for constructing `Duration` values from an integral number
// of the unit indicated by the factory function's name.
//
-// Note: no "Days()" factory function exists because "a day" is ambiguous. Civil
-// days are not always 24 hours long, and a 24-hour duration often does not
-// correspond with a civil day. If a 24-hour duration is needed, use
-// `absl::Hours(24)`.
-//
+// Note: no "Days()" factory function exists because "a day" is ambiguous.
+// Civil days are not always 24 hours long, and a 24-hour duration often does
+// not correspond with a civil day. If a 24-hour duration is needed, use
+// `absl::Hours(24)`. (If you actually want a civil day, use absl::CivilDay
+// from civil_time.h.)
//
// Example:
//
@@ -329,6 +396,7 @@ constexpr Duration Hours(int64_t n);
// factories, which should be preferred.
//
// Example:
+//
// auto a = absl::Seconds(1.5); // OK
// auto b = absl::Milliseconds(1500); // BETTER
template <typename T, time_internal::EnableIfFloat<T> = 0>
@@ -345,7 +413,15 @@ Duration Milliseconds(T n) {
}
template <typename T, time_internal::EnableIfFloat<T> = 0>
Duration Seconds(T n) {
- return n * Seconds(1);
+ if (n >= 0) { // Note: `NaN >= 0` is false.
+ if (n >= (std::numeric_limits<int64_t>::max)()) return InfiniteDuration();
+ return time_internal::MakePosDoubleDuration(n);
+ } else {
+ if (std::isnan(n))
+ return std::signbit(n) ? -InfiniteDuration() : InfiniteDuration();
+ if (n <= (std::numeric_limits<int64_t>::min)()) return -InfiniteDuration();
+ return -time_internal::MakePosDoubleDuration(-n);
+ }
}
template <typename T, time_internal::EnableIfFloat<T> = 0>
Duration Minutes(T n) {
@@ -440,42 +516,9 @@ std::chrono::seconds ToChronoSeconds(Duration d);
std::chrono::minutes ToChronoMinutes(Duration d);
std::chrono::hours ToChronoHours(Duration d);
-// InfiniteDuration()
-//
-// Returns an infinite `Duration`. To get a `Duration` representing negative
-// infinity, use `-InfiniteDuration()`.
-//
-// Duration arithmetic overflows to +/- infinity and saturates. In general,
-// arithmetic with `Duration` infinities is similar to IEEE 754 infinities
-// except where IEEE 754 NaN would be involved, in which case +/-
-// `InfiniteDuration()` is used in place of a "nan" Duration.
-//
-// Examples:
-//
-// constexpr absl::Duration inf = absl::InfiniteDuration();
-// const absl::Duration d = ... any finite duration ...
-//
-// inf == inf + inf
-// inf == inf + d
-// inf == inf - inf
-// -inf == d - inf
-//
-// inf == d * 1e100
-// inf == inf / 2
-// 0 == d / inf
-// INT64_MAX == inf / d
-//
-// // Division by zero returns infinity, or INT64_MIN/MAX where appropriate.
-// inf == d / 0
-// INT64_MAX == d / absl::ZeroDuration()
-//
-// The examples involving the `/` operator above also apply to `IDivDuration()`
-// and `FDivDuration()`.
-constexpr Duration InfiniteDuration();
-
// FormatDuration()
//
-// Returns a std::string representing the duration in the form "72h3m0.5s".
+// Returns a string representing the duration in the form "72h3m0.5s".
// Returns "inf" or "-inf" for +/- `InfiniteDuration()`.
std::string FormatDuration(Duration d);
@@ -486,19 +529,16 @@ inline std::ostream& operator<<(std::ostream& os, Duration d) {
// ParseDuration()
//
-// Parses a duration std::string consisting of a possibly signed sequence of
+// Parses a duration string consisting of a possibly signed sequence of
// decimal numbers, each with an optional fractional part and a unit
// suffix. The valid suffixes are "ns", "us" "ms", "s", "m", and "h".
// Simple examples include "300ms", "-1.5h", and "2h45m". Parses "0" as
-// `ZeroDuration()`. Parses "inf" and "-inf" as +/- `InfiniteDuration()`.
+// `ZeroDuration()`. Parses "inf" and "-inf" as +/- `InfiniteDuration()`.
bool ParseDuration(const std::string& dur_string, Duration* d);
-// ParseFlag()
-//
+// Support for flag values of type Duration. Duration flags must be specified
+// in a format that is valid input for absl::ParseDuration().
bool ParseFlag(const std::string& text, Duration* dst, std::string* error);
-
-// UnparseFlag()
-//
std::string UnparseFlag(Duration d);
// Time
@@ -534,7 +574,7 @@ std::string UnparseFlag(Duration d);
//
// `absl::Time` uses a resolution that is high enough to avoid loss in
// precision, and a range that is wide enough to avoid overflow, when
-// converting between tick counts in most Google time scales (i.e., precision
+// converting between tick counts in most Google time scales (i.e., resolution
// of at least one nanosecond, and range +/-100 billion years). Conversions
// between the time scales are performed by truncating (towards negative
// infinity) to the nearest representable point.
@@ -544,7 +584,6 @@ std::string UnparseFlag(Duration d);
// absl::Time t1 = ...;
// absl::Time t2 = t1 + absl::Minutes(2);
// absl::Duration d = t2 - t1; // == absl::Minutes(2)
-// absl::Time::Breakdown bd = t1.In(absl::LocalTimeZone());
//
class Time {
public:
@@ -559,7 +598,11 @@ class Time {
// absl::Time t = absl::Now();
// absl::Time t = absl::TimeFromTimeval(tv);
// absl::Time t = absl::InfinitePast();
- constexpr Time() {}
+ constexpr Time() = default;
+
+ // Copyable.
+ constexpr Time(const Time& t) = default;
+ Time& operator=(const Time& t) = default;
// Assignment operators.
Time& operator+=(Duration d) {
@@ -578,7 +621,10 @@ class Time {
// intended to represent an instant in time. So, rather than passing
// a `Time::Breakdown` to a function, pass an `absl::Time` and an
// `absl::TimeZone`.
- struct Breakdown {
+ //
+ // Deprecated. Use `absl::TimeZone::CivilInfo`.
+ struct
+ Breakdown {
int64_t year; // year (e.g., 2013)
int month; // month of year [1:12]
int day; // day of month [1:31]
@@ -602,8 +648,15 @@ class Time {
// Time::In()
//
// Returns the breakdown of this instant in the given TimeZone.
+ //
+ // Deprecated. Use `absl::TimeZone::At(Time)`.
Breakdown In(TimeZone tz) const;
+ template <typename H>
+ friend H AbslHashValue(H h, Time t) {
+ return H::combine(std::move(h), t.rep_);
+ }
+
private:
friend constexpr Time time_internal::FromUnixDuration(Duration d);
friend constexpr Duration time_internal::ToUnixDuration(Time t);
@@ -651,7 +704,7 @@ constexpr Time UniversalEpoch() {
// Returns an `absl::Time` that is infinitely far in the future.
constexpr Time InfiniteFuture() {
return Time(
- time_internal::MakeDuration(std::numeric_limits<int64_t>::max(), ~0U));
+ time_internal::MakeDuration((std::numeric_limits<int64_t>::max)(), ~0U));
}
// InfinitePast()
@@ -659,125 +712,9 @@ constexpr Time InfiniteFuture() {
// Returns an `absl::Time` that is infinitely far in the past.
constexpr Time InfinitePast() {
return Time(
- time_internal::MakeDuration(std::numeric_limits<int64_t>::min(), ~0U));
+ time_internal::MakeDuration((std::numeric_limits<int64_t>::min)(), ~0U));
}
-// TimeConversion
-//
-// An `absl::TimeConversion` represents the conversion of year, month, day,
-// hour, minute, and second values (i.e., a civil time), in a particular
-// `absl::TimeZone`, to a time instant (an absolute time), as returned by
-// `absl::ConvertDateTime()`. (Subseconds must be handled separately.)
-//
-// It is possible, though, for a caller to try to convert values that
-// do not represent an actual or unique instant in time (due to a shift
-// in UTC offset in the `absl::TimeZone`, which results in a discontinuity in
-// the civil-time components). For example, a daylight-saving-time
-// transition skips or repeats civil times---in the United States, March
-// 13, 2011 02:15 never occurred, while November 6, 2011 01:15 occurred
-// twice---so requests for such times are not well-defined.
-//
-// To account for these possibilities, `absl::TimeConversion` is richer
-// than just a single `absl::Time`. When the civil time is skipped or
-// repeated, `absl::ConvertDateTime()` returns times calculated using the
-// pre-transition and post-transition UTC offsets, plus the transition
-// time itself.
-//
-// Examples:
-//
-// absl::TimeZone lax;
-// if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { ... }
-//
-// // A unique civil time
-// absl::TimeConversion jan01 =
-// absl::ConvertDateTime(2011, 1, 1, 0, 0, 0, lax);
-// // jan01.kind == TimeConversion::UNIQUE
-// // jan01.pre is 2011/01/01 00:00:00 -0800
-// // jan01.trans is 2011/01/01 00:00:00 -0800
-// // jan01.post is 2011/01/01 00:00:00 -0800
-//
-// // A Spring DST transition, when there is a gap in civil time
-// absl::TimeConversion mar13 =
-// absl::ConvertDateTime(2011, 3, 13, 2, 15, 0, lax);
-// // mar13.kind == TimeConversion::SKIPPED
-// // mar13.pre is 2011/03/13 03:15:00 -0700
-// // mar13.trans is 2011/03/13 03:00:00 -0700
-// // mar13.post is 2011/03/13 01:15:00 -0800
-//
-// // A Fall DST transition, when civil times are repeated
-// absl::TimeConversion nov06 =
-// absl::ConvertDateTime(2011, 11, 6, 1, 15, 0, lax);
-// // nov06.kind == TimeConversion::REPEATED
-// // nov06.pre is 2011/11/06 01:15:00 -0700
-// // nov06.trans is 2011/11/06 01:00:00 -0800
-// // nov06.post is 2011/11/06 01:15:00 -0800
-//
-// The input month, day, hour, minute, and second values can also be
-// outside of their valid ranges, in which case they will be "normalized"
-// during the conversion.
-//
-// Example:
-//
-// // "October 32" normalizes to "November 1".
-// absl::TimeZone tz = absl::LocalTimeZone();
-// absl::TimeConversion tc =
-// absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, tz);
-// // tc.kind == TimeConversion::UNIQUE && tc.normalized == true
-// // tc.pre.In(tz).month == 11 && tc.pre.In(tz).day == 1
-struct TimeConversion {
- Time pre; // time calculated using the pre-transition offset
- Time trans; // when the civil-time discontinuity occurred
- Time post; // time calculated using the post-transition offset
-
- enum Kind {
- UNIQUE, // the civil time was singular (pre == trans == post)
- SKIPPED, // the civil time did not exist
- REPEATED, // the civil time was ambiguous
- };
- Kind kind;
-
- bool normalized; // input values were outside their valid ranges
-};
-
-// ConvertDateTime()
-//
-// The full generality of a civil time to absl::Time conversion.
-TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour,
- int min, int sec, TimeZone tz);
-
-// FromDateTime()
-//
-// A convenience wrapper for `absl::ConvertDateTime()` that simply returns the
-// "pre" `absl::Time`. That is, the unique result, or the instant that
-// is correct using the pre-transition offset (as if the transition
-// never happened). This is typically the answer that humans expected when
-// faced with non-unique times, such as near daylight-saving time transitions.
-//
-// Example:
-//
-// absl::TimeZone seattle;
-// if (!absl::LoadTimeZone("America/Los_Angeles", &seattle)) { ... }
-// absl::Time t = absl::FromDateTime(2017, 9, 26, 9, 30, 0, seattle);
-Time FromDateTime(int64_t year, int mon, int day, int hour, int min, int sec,
- TimeZone tz);
-
-// FromTM()
-//
-// Converts the `tm_year`, `tm_mon`, `tm_mday`, `tm_hour`, `tm_min`, and
-// `tm_sec` fields to an `absl::Time` using the given time zone. See ctime(3)
-// for a description of the expected values of the tm fields. IFF the indicated
-// time instant is not unique (see `absl::ConvertDateTime()` above), the
-// `tm_isdst` field is consulted to select the desired instant (`tm_isdst` > 0
-// means DST, `tm_isdst` == 0 means no DST, `tm_isdst` < 0 means use the default
-// like `absl::FromDateTime()`).
-Time FromTM(const struct tm& tm, TimeZone tz);
-
-// ToTM()
-//
-// Converts the given `absl::Time` to a struct tm using the given time zone.
-// See ctime(3) for a description of the values of the tm fields.
-struct tm ToTM(Time t, TimeZone tz);
-
// FromUnixNanos()
// FromUnixMicros()
// FromUnixMillis()
@@ -862,14 +799,390 @@ Time FromChrono(const std::chrono::system_clock::time_point& tp);
// // tp == std::chrono::system_clock::from_time_t(123);
std::chrono::system_clock::time_point ToChronoTime(Time);
+// Support for flag values of type Time. Time flags must be specified in a
+// format that matches absl::RFC3339_full. For example:
+//
+// --start_time=2016-01-02T03:04:05.678+08:00
+//
+// Note: A UTC offset (or 'Z' indicating a zero-offset from UTC) is required.
+//
+// Additionally, if you'd like to specify a time as a count of
+// seconds/milliseconds/etc from the Unix epoch, use an absl::Duration flag
+// and add that duration to absl::UnixEpoch() to get an absl::Time.
+bool ParseFlag(const std::string& text, Time* t, std::string* error);
+std::string UnparseFlag(Time t);
+
+// TimeZone
+//
+// The `absl::TimeZone` is an opaque, small, value-type class representing a
+// geo-political region within which particular rules are used for converting
+// between absolute and civil times (see https://git.io/v59Ly). `absl::TimeZone`
+// values are named using the TZ identifiers from the IANA Time Zone Database,
+// such as "America/Los_Angeles" or "Australia/Sydney". `absl::TimeZone` values
+// are created from factory functions such as `absl::LoadTimeZone()`. Note:
+// strings like "PST" and "EDT" are not valid TZ identifiers. Prefer to pass by
+// value rather than const reference.
+//
+// For more on the fundamental concepts of time zones, absolute times, and civil
+// times, see https://github.com/google/cctz#fundamental-concepts
+//
+// Examples:
+//
+// absl::TimeZone utc = absl::UTCTimeZone();
+// absl::TimeZone pst = absl::FixedTimeZone(-8 * 60 * 60);
+// absl::TimeZone loc = absl::LocalTimeZone();
+// absl::TimeZone lax;
+// if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) {
+// // handle error case
+// }
+//
+// See also:
+// - https://github.com/google/cctz
+// - http://www.iana.org/time-zones
+// - http://en.wikipedia.org/wiki/Zoneinfo
+class TimeZone {
+ public:
+ explicit TimeZone(time_internal::cctz::time_zone tz) : cz_(tz) {}
+ TimeZone() = default; // UTC, but prefer UTCTimeZone() to be explicit.
+
+ // Copyable.
+ TimeZone(const TimeZone&) = default;
+ TimeZone& operator=(const TimeZone&) = default;
+
+ explicit operator time_internal::cctz::time_zone() const { return cz_; }
+
+ std::string name() const { return cz_.name(); }
+
+ // TimeZone::CivilInfo
+ //
+ // Information about the civil time corresponding to an absolute time.
+ // This struct is not intended to represent an instant in time. So, rather
+ // than passing a `TimeZone::CivilInfo` to a function, pass an `absl::Time`
+ // and an `absl::TimeZone`.
+ struct CivilInfo {
+ CivilSecond cs;
+ Duration subsecond;
+
+ // Note: The following fields exist for backward compatibility
+ // with older APIs. Accessing these fields directly is a sign of
+ // imprudent logic in the calling code. Modern time-related code
+ // should only access this data indirectly by way of FormatTime().
+ // These fields are undefined for InfiniteFuture() and InfinitePast().
+ int offset; // seconds east of UTC
+ bool is_dst; // is offset non-standard?
+ const char* zone_abbr; // time-zone abbreviation (e.g., "PST")
+ };
+
+ // TimeZone::At(Time)
+ //
+ // Returns the civil time for this TimeZone at a certain `absl::Time`.
+ // If the input time is infinite, the output civil second will be set to
+ // CivilSecond::max() or min(), and the subsecond will be infinite.
+ //
+ // Example:
+ //
+ // const auto epoch = lax.At(absl::UnixEpoch());
+ // // epoch.cs == 1969-12-31 16:00:00
+ // // epoch.subsecond == absl::ZeroDuration()
+ // // epoch.offset == -28800
+ // // epoch.is_dst == false
+ // // epoch.abbr == "PST"
+ CivilInfo At(Time t) const;
+
+ // TimeZone::TimeInfo
+ //
+ // Information about the absolute times corresponding to a civil time.
+ // (Subseconds must be handled separately.)
+ //
+ // It is possible for a caller to pass a civil-time value that does
+ // not represent an actual or unique instant in time (due to a shift
+ // in UTC offset in the TimeZone, which results in a discontinuity in
+ // the civil-time components). For example, a daylight-saving-time
+ // transition skips or repeats civil times---in the United States,
+ // March 13, 2011 02:15 never occurred, while November 6, 2011 01:15
+ // occurred twice---so requests for such times are not well-defined.
+ // To account for these possibilities, `absl::TimeZone::TimeInfo` is
+ // richer than just a single `absl::Time`.
+ struct TimeInfo {
+ enum CivilKind {
+ UNIQUE, // the civil time was singular (pre == trans == post)
+ SKIPPED, // the civil time did not exist (pre >= trans > post)
+ REPEATED, // the civil time was ambiguous (pre < trans <= post)
+ } kind;
+ Time pre; // time calculated using the pre-transition offset
+ Time trans; // when the civil-time discontinuity occurred
+ Time post; // time calculated using the post-transition offset
+ };
+
+ // TimeZone::At(CivilSecond)
+ //
+ // Returns an `absl::TimeInfo` containing the absolute time(s) for this
+ // TimeZone at an `absl::CivilSecond`. When the civil time is skipped or
+ // repeated, returns times calculated using the pre-transition and post-
+ // transition UTC offsets, plus the transition time itself.
+ //
+ // Examples:
+ //
+ // // A unique civil time
+ // const auto jan01 = lax.At(absl::CivilSecond(2011, 1, 1, 0, 0, 0));
+ // // jan01.kind == TimeZone::TimeInfo::UNIQUE
+ // // jan01.pre is 2011-01-01 00:00:00 -0800
+ // // jan01.trans is 2011-01-01 00:00:00 -0800
+ // // jan01.post is 2011-01-01 00:00:00 -0800
+ //
+ // // A Spring DST transition, when there is a gap in civil time
+ // const auto mar13 = lax.At(absl::CivilSecond(2011, 3, 13, 2, 15, 0));
+ // // mar13.kind == TimeZone::TimeInfo::SKIPPED
+ // // mar13.pre is 2011-03-13 03:15:00 -0700
+ // // mar13.trans is 2011-03-13 03:00:00 -0700
+ // // mar13.post is 2011-03-13 01:15:00 -0800
+ //
+ // // A Fall DST transition, when civil times are repeated
+ // const auto nov06 = lax.At(absl::CivilSecond(2011, 11, 6, 1, 15, 0));
+ // // nov06.kind == TimeZone::TimeInfo::REPEATED
+ // // nov06.pre is 2011-11-06 01:15:00 -0700
+ // // nov06.trans is 2011-11-06 01:00:00 -0800
+ // // nov06.post is 2011-11-06 01:15:00 -0800
+ TimeInfo At(CivilSecond ct) const;
+
+ // TimeZone::NextTransition()
+ // TimeZone::PrevTransition()
+ //
+ // Finds the time of the next/previous offset change in this time zone.
+ //
+ // By definition, `NextTransition(t, &trans)` returns false when `t` is
+ // `InfiniteFuture()`, and `PrevTransition(t, &trans)` returns false
+ // when `t` is `InfinitePast()`. If the zone has no transitions, the
+ // result will also be false no matter what the argument.
+ //
+ // Otherwise, when `t` is `InfinitePast()`, `NextTransition(t, &trans)`
+ // returns true and sets `trans` to the first recorded transition. Chains
+ // of calls to `NextTransition()/PrevTransition()` will eventually return
+ // false, but it is unspecified exactly when `NextTransition(t, &trans)`
+ // jumps to false, or what time is set by `PrevTransition(t, &trans)` for
+ // a very distant `t`.
+ //
+ // Note: Enumeration of time-zone transitions is for informational purposes
+ // only. Modern time-related code should not care about when offset changes
+ // occur.
+ //
+ // Example:
+ // absl::TimeZone nyc;
+ // if (!absl::LoadTimeZone("America/New_York", &nyc)) { ... }
+ // const auto now = absl::Now();
+ // auto t = absl::InfinitePast();
+ // absl::TimeZone::CivilTransition trans;
+ // while (t <= now && nyc.NextTransition(t, &trans)) {
+ // // transition: trans.from -> trans.to
+ // t = nyc.At(trans.to).trans;
+ // }
+ struct CivilTransition {
+ CivilSecond from; // the civil time we jump from
+ CivilSecond to; // the civil time we jump to
+ };
+ bool NextTransition(Time t, CivilTransition* trans) const;
+ bool PrevTransition(Time t, CivilTransition* trans) const;
+
+ template <typename H>
+ friend H AbslHashValue(H h, TimeZone tz) {
+ return H::combine(std::move(h), tz.cz_);
+ }
+
+ private:
+ friend bool operator==(TimeZone a, TimeZone b) { return a.cz_ == b.cz_; }
+ friend bool operator!=(TimeZone a, TimeZone b) { return a.cz_ != b.cz_; }
+ friend std::ostream& operator<<(std::ostream& os, TimeZone tz) {
+ return os << tz.name();
+ }
+
+ time_internal::cctz::time_zone cz_;
+};
+
+// LoadTimeZone()
+//
+// Loads the named zone. May perform I/O on the initial load of the named
+// zone. If the name is invalid, or some other kind of error occurs, returns
+// `false` and `*tz` is set to the UTC time zone.
+inline bool LoadTimeZone(const std::string& name, TimeZone* tz) {
+ if (name == "localtime") {
+ *tz = TimeZone(time_internal::cctz::local_time_zone());
+ return true;
+ }
+ time_internal::cctz::time_zone cz;
+ const bool b = time_internal::cctz::load_time_zone(name, &cz);
+ *tz = TimeZone(cz);
+ return b;
+}
+
+// FixedTimeZone()
+//
+// Returns a TimeZone that is a fixed offset (seconds east) from UTC.
+// Note: If the absolute value of the offset is greater than 24 hours
+// you'll get UTC (i.e., no offset) instead.
+inline TimeZone FixedTimeZone(int seconds) {
+ return TimeZone(
+ time_internal::cctz::fixed_time_zone(std::chrono::seconds(seconds)));
+}
+
+// UTCTimeZone()
+//
+// Convenience method returning the UTC time zone.
+inline TimeZone UTCTimeZone() {
+ return TimeZone(time_internal::cctz::utc_time_zone());
+}
+
+// LocalTimeZone()
+//
+// Convenience method returning the local time zone, or UTC if there is
+// no configured local zone. Warning: Be wary of using LocalTimeZone(),
+// and particularly so in a server process, as the zone configured for the
+// local machine should be irrelevant. Prefer an explicit zone name.
+inline TimeZone LocalTimeZone() {
+ return TimeZone(time_internal::cctz::local_time_zone());
+}
+
+// ToCivilSecond()
+// ToCivilMinute()
+// ToCivilHour()
+// ToCivilDay()
+// ToCivilMonth()
+// ToCivilYear()
+//
+// Helpers for TimeZone::At(Time) to return particularly aligned civil times.
+//
+// Example:
+//
+// absl::Time t = ...;
+// absl::TimeZone tz = ...;
+// const auto cd = absl::ToCivilDay(t, tz);
+inline CivilSecond ToCivilSecond(Time t, TimeZone tz) {
+ return tz.At(t).cs; // already a CivilSecond
+}
+inline CivilMinute ToCivilMinute(Time t, TimeZone tz) {
+ return CivilMinute(tz.At(t).cs);
+}
+inline CivilHour ToCivilHour(Time t, TimeZone tz) {
+ return CivilHour(tz.At(t).cs);
+}
+inline CivilDay ToCivilDay(Time t, TimeZone tz) {
+ return CivilDay(tz.At(t).cs);
+}
+inline CivilMonth ToCivilMonth(Time t, TimeZone tz) {
+ return CivilMonth(tz.At(t).cs);
+}
+inline CivilYear ToCivilYear(Time t, TimeZone tz) {
+ return CivilYear(tz.At(t).cs);
+}
+
+// FromCivil()
+//
+// Helper for TimeZone::At(CivilSecond) that provides "order-preserving
+// semantics." If the civil time maps to a unique time, that time is
+// returned. If the civil time is repeated in the given time zone, the
+// time using the pre-transition offset is returned. Otherwise, the
+// civil time is skipped in the given time zone, and the transition time
+// is returned. This means that for any two civil times, ct1 and ct2,
+// (ct1 < ct2) => (FromCivil(ct1) <= FromCivil(ct2)), the equal case
+// being when two non-existent civil times map to the same transition time.
+//
+// Note: Accepts civil times of any alignment.
+inline Time FromCivil(CivilSecond ct, TimeZone tz) {
+ const auto ti = tz.At(ct);
+ if (ti.kind == TimeZone::TimeInfo::SKIPPED) return ti.trans;
+ return ti.pre;
+}
+
+// TimeConversion
+//
+// An `absl::TimeConversion` represents the conversion of year, month, day,
+// hour, minute, and second values (i.e., a civil time), in a particular
+// `absl::TimeZone`, to a time instant (an absolute time), as returned by
+// `absl::ConvertDateTime()`. Lecacy version of `absl::TimeZone::TimeInfo`.
+//
+// Deprecated. Use `absl::TimeZone::TimeInfo`.
+struct
+ TimeConversion {
+ Time pre; // time calculated using the pre-transition offset
+ Time trans; // when the civil-time discontinuity occurred
+ Time post; // time calculated using the post-transition offset
+
+ enum Kind {
+ UNIQUE, // the civil time was singular (pre == trans == post)
+ SKIPPED, // the civil time did not exist
+ REPEATED, // the civil time was ambiguous
+ };
+ Kind kind;
+
+ bool normalized; // input values were outside their valid ranges
+};
+
+// ConvertDateTime()
+//
+// Legacy version of `absl::TimeZone::At(absl::CivilSecond)` that takes
+// the civil time as six, separate values (YMDHMS).
+//
+// The input month, day, hour, minute, and second values can be outside
+// of their valid ranges, in which case they will be "normalized" during
+// the conversion.
+//
+// Example:
+//
+// // "October 32" normalizes to "November 1".
+// absl::TimeConversion tc =
+// absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, lax);
+// // tc.kind == TimeConversion::UNIQUE && tc.normalized == true
+// // absl::ToCivilDay(tc.pre, tz).month() == 11
+// // absl::ToCivilDay(tc.pre, tz).day() == 1
+//
+// Deprecated. Use `absl::TimeZone::At(CivilSecond)`.
+TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour,
+ int min, int sec, TimeZone tz);
+
+// FromDateTime()
+//
+// A convenience wrapper for `absl::ConvertDateTime()` that simply returns
+// the "pre" `absl::Time`. That is, the unique result, or the instant that
+// is correct using the pre-transition offset (as if the transition never
+// happened).
+//
+// Example:
+//
+// absl::Time t = absl::FromDateTime(2017, 9, 26, 9, 30, 0, lax);
+// // t = 2017-09-26 09:30:00 -0700
+//
+// Deprecated. Use `absl::TimeZone::At(CivilSecond).pre`.
+inline Time FromDateTime(int64_t year, int mon, int day, int hour,
+ int min, int sec, TimeZone tz) {
+ return ConvertDateTime(year, mon, day, hour, min, sec, tz).pre;
+}
+
+// FromTM()
+//
+// Converts the `tm_year`, `tm_mon`, `tm_mday`, `tm_hour`, `tm_min`, and
+// `tm_sec` fields to an `absl::Time` using the given time zone. See ctime(3)
+// for a description of the expected values of the tm fields. If the indicated
+// time instant is not unique (see `absl::TimeZone::At(absl::CivilSecond)`
+// above), the `tm_isdst` field is consulted to select the desired instant
+// (`tm_isdst` > 0 means DST, `tm_isdst` == 0 means no DST, `tm_isdst` < 0
+// means use the post-transition offset).
+Time FromTM(const struct tm& tm, TimeZone tz);
+
+// ToTM()
+//
+// Converts the given `absl::Time` to a struct tm using the given time zone.
+// See ctime(3) for a description of the values of the tm fields.
+struct tm ToTM(Time t, TimeZone tz);
+
// RFC3339_full
// RFC3339_sec
//
// FormatTime()/ParseTime() format specifiers for RFC3339 date/time strings,
// with trailing zeros trimmed or with fractional seconds omitted altogether.
//
-// Note that RFC3339_sec[] matches an ISO 8601 extended format for date
-// and time with UTC offset.
+// Note that RFC3339_sec[] matches an ISO 8601 extended format for date and
+// time with UTC offset. Also note the use of "%Y": RFC3339 mandates that
+// years have exactly four digits, but we allow them to take their natural
+// width.
extern const char RFC3339_full[]; // %Y-%m-%dT%H:%M:%E*S%Ez
extern const char RFC3339_sec[]; // %Y-%m-%dT%H:%M:%S%Ez
@@ -883,7 +1196,7 @@ extern const char RFC1123_no_wday[]; // %d %b %E4Y %H:%M:%S %z
// FormatTime()
//
// Formats the given `absl::Time` in the `absl::TimeZone` according to the
-// provided format std::string. Uses strftime()-like formatting options, with
+// provided format string. Uses strftime()-like formatting options, with
// the following extensions:
//
// - %Ez - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm)
@@ -906,17 +1219,15 @@ extern const char RFC1123_no_wday[]; // %d %b %E4Y %H:%M:%S %z
//
// Example:
//
-// absl::TimeZone lax;
-// if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { ... }
-// absl::Time t = absl::FromDateTime(2013, 1, 2, 3, 4, 5, lax);
-//
-// std::string f = absl::FormatTime("%H:%M:%S", t, lax); // "03:04:05"
+// absl::CivilSecond cs(2013, 1, 2, 3, 4, 5);
+// absl::Time t = absl::FromCivil(cs, lax);
+// string f = absl::FormatTime("%H:%M:%S", t, lax); // "03:04:05"
// f = absl::FormatTime("%H:%M:%E3S", t, lax); // "03:04:05.000"
//
// Note: If the given `absl::Time` is `absl::InfiniteFuture()`, the returned
-// std::string will be exactly "infinite-future". If the given `absl::Time` is
-// `absl::InfinitePast()`, the returned std::string will be exactly "infinite-past".
-// In both cases the given format std::string and `absl::TimeZone` are ignored.
+// string will be exactly "infinite-future". If the given `absl::Time` is
+// `absl::InfinitePast()`, the returned string will be exactly "infinite-past".
+// In both cases the given format string and `absl::TimeZone` are ignored.
//
std::string FormatTime(const std::string& format, Time t, TimeZone tz);
@@ -933,7 +1244,7 @@ inline std::ostream& operator<<(std::ostream& os, Time t) {
// ParseTime()
//
-// Parses an input std::string according to the provided format std::string and
+// Parses an input string according to the provided format string and
// returns the corresponding `absl::Time`. Uses strftime()-like formatting
// options, with the same extensions as FormatTime(), but with the
// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f. %Ez
@@ -947,7 +1258,7 @@ inline std::ostream& operator<<(std::ostream& os, Time t) {
//
// "1970-01-01 00:00:00.0 +0000"
//
-// For example, parsing a std::string of "15:45" (%H:%M) will return an absl::Time
+// For example, parsing a string of "15:45" (%H:%M) will return an absl::Time
// that represents "1970-01-01 15:45:00.0 +0000".
//
// Note that since ParseTime() returns time instants, it makes the most sense
@@ -960,7 +1271,7 @@ inline std::ostream& operator<<(std::ostream& os, Time t) {
// in the conversion.
//
// Date and time fields that are out-of-range will be treated as errors
-// rather than normalizing them like `absl::FromDateTime()` does. For example,
+// rather than normalizing them like `absl::CivilSecond` does. For example,
// it is an error to parse the date "Oct 32, 2013" because 32 is out of range.
//
// A leap second of ":60" is normalized to ":00" of the following minute
@@ -974,130 +1285,24 @@ inline std::ostream& operator<<(std::ostream& os, Time t) {
// Errors are indicated by returning false and assigning an error message
// to the "err" out param if it is non-null.
//
-// Note: If the input std::string is exactly "infinite-future", the returned
+// Note: If the input string is exactly "infinite-future", the returned
// `absl::Time` will be `absl::InfiniteFuture()` and `true` will be returned.
-// If the input std::string is "infinite-past", the returned `absl::Time` will be
+// If the input string is "infinite-past", the returned `absl::Time` will be
// `absl::InfinitePast()` and `true` will be returned.
//
bool ParseTime(const std::string& format, const std::string& input, Time* time,
std::string* err);
-// Like ParseTime() above, but if the format std::string does not contain a UTC
+// Like ParseTime() above, but if the format string does not contain a UTC
// offset specification (%z/%Ez/%E*z) then the input is interpreted in the
// given TimeZone. This means that the input, by itself, does not identify a
// unique instant. Being time-zone dependent, it also admits the possibility
// of ambiguity or non-existence, in which case the "pre" time (as defined
-// for ConvertDateTime()) is returned. For these reasons we recommend that
+// by TimeZone::TimeInfo) is returned. For these reasons we recommend that
// all date/time strings include a UTC offset so they're context independent.
bool ParseTime(const std::string& format, const std::string& input, TimeZone tz,
Time* time, std::string* err);
-// ParseFlag()
-// UnparseFlag()
-//
-// Support for flag values of type Time. Time flags must be specified in a
-// format that matches absl::RFC3339_full. For example:
-//
-// --start_time=2016-01-02T03:04:05.678+08:00
-//
-// Note: A UTC offset (or 'Z' indicating a zero-offset from UTC) is required.
-//
-// Additionally, if you'd like to specify a time as a count of
-// seconds/milliseconds/etc from the Unix epoch, use an absl::Duration flag
-// and add that duration to absl::UnixEpoch() to get an absl::Time.
-bool ParseFlag(const std::string& text, Time* t, std::string* error);
-std::string UnparseFlag(Time t);
-
-// TimeZone
-//
-// The `absl::TimeZone` is an opaque, small, value-type class representing a
-// geo-political region within which particular rules are used for converting
-// between absolute and civil times (see https://git.io/v59Ly). `absl::TimeZone`
-// values are named using the TZ identifiers from the IANA Time Zone Database,
-// such as "America/Los_Angeles" or "Australia/Sydney". `absl::TimeZone` values
-// are created from factory functions such as `absl::LoadTimeZone()`. Note:
-// strings like "PST" and "EDT" are not valid TZ identifiers. Prefer to pass by
-// value rather than const reference.
-//
-// For more on the fundamental concepts of time zones, absolute times, and civil
-// times, see https://github.com/google/cctz#fundamental-concepts
-//
-// Examples:
-//
-// absl::TimeZone utc = absl::UTCTimeZone();
-// absl::TimeZone pst = absl::FixedTimeZone(-8 * 60 * 60);
-// absl::TimeZone loc = absl::LocalTimeZone();
-// absl::TimeZone lax;
-// if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { ... }
-//
-// See also:
-// - https://github.com/google/cctz
-// - http://www.iana.org/time-zones
-// - http://en.wikipedia.org/wiki/Zoneinfo
-class TimeZone {
- public:
- explicit TimeZone(time_internal::cctz::time_zone tz) : cz_(tz) {}
- TimeZone() = default; // UTC, but prefer UTCTimeZone() to be explicit.
- TimeZone(const TimeZone&) = default;
- TimeZone& operator=(const TimeZone&) = default;
-
- explicit operator time_internal::cctz::time_zone() const { return cz_; }
-
- std::string name() const { return cz_.name(); }
-
- private:
- friend bool operator==(TimeZone a, TimeZone b) { return a.cz_ == b.cz_; }
- friend bool operator!=(TimeZone a, TimeZone b) { return a.cz_ != b.cz_; }
- friend std::ostream& operator<<(std::ostream& os, TimeZone tz) {
- return os << tz.name();
- }
-
- time_internal::cctz::time_zone cz_;
-};
-
-// LoadTimeZone()
-//
-// Loads the named zone. May perform I/O on the initial load of the named
-// zone. If the name is invalid, or some other kind of error occurs, returns
-// `false` and `*tz` is set to the UTC time zone.
-inline bool LoadTimeZone(const std::string& name, TimeZone* tz) {
- if (name == "localtime") {
- *tz = TimeZone(time_internal::cctz::local_time_zone());
- return true;
- }
- time_internal::cctz::time_zone cz;
- const bool b = time_internal::cctz::load_time_zone(name, &cz);
- *tz = TimeZone(cz);
- return b;
-}
-
-// FixedTimeZone()
-//
-// Returns a TimeZone that is a fixed offset (seconds east) from UTC.
-// Note: If the absolute value of the offset is greater than 24 hours
-// you'll get UTC (i.e., no offset) instead.
-inline TimeZone FixedTimeZone(int seconds) {
- return TimeZone(
- time_internal::cctz::fixed_time_zone(std::chrono::seconds(seconds)));
-}
-
-// UTCTimeZone()
-//
-// Convenience method returning the UTC time zone.
-inline TimeZone UTCTimeZone() {
- return TimeZone(time_internal::cctz::utc_time_zone());
-}
-
-// LocalTimeZone()
-//
-// Convenience method returning the local time zone, or UTC if there is
-// no configured local zone. Warning: Be wary of using LocalTimeZone(),
-// and particularly so in a server process, as the zone configured for the
-// local machine should be irrelevant. Prefer an explicit zone name.
-inline TimeZone LocalTimeZone() {
- return TimeZone(time_internal::cctz::local_time_zone());
-}
-
// ============================================================================
// Implementation Details Follow
// ============================================================================
@@ -1115,6 +1320,18 @@ constexpr Duration MakeDuration(int64_t hi, int64_t lo) {
return MakeDuration(hi, static_cast<uint32_t>(lo));
}
+// Make a Duration value from a floating-point number, as long as that number
+// is in the range [ 0 .. numeric_limits<int64_t>::max ), that is, as long as
+// it's positive and can be converted to int64_t without risk of UB.
+inline Duration MakePosDoubleDuration(double n) {
+ const int64_t int_secs = static_cast<int64_t>(n);
+ const uint32_t ticks =
+ static_cast<uint32_t>((n - int_secs) * kTicksPerSecond + 0.5);
+ return ticks < kTicksPerSecond
+ ? MakeDuration(int_secs, ticks)
+ : MakeDuration(int_secs + 1, ticks - kTicksPerSecond);
+}
+
// Creates a normalized Duration from an almost-normalized (sec,ticks)
// pair. sec may be positive or negative. ticks must be in the range
// -kTicksPerSecond < *ticks < kTicksPerSecond. If ticks is negative it
@@ -1123,17 +1340,20 @@ constexpr Duration MakeNormalizedDuration(int64_t sec, int64_t ticks) {
return (ticks < 0) ? MakeDuration(sec - 1, ticks + kTicksPerSecond)
: MakeDuration(sec, ticks);
}
+
// Provide access to the Duration representation.
constexpr int64_t GetRepHi(Duration d) { return d.rep_hi_; }
constexpr uint32_t GetRepLo(Duration d) { return d.rep_lo_; }
+
+// Returns true iff d is positive or negative infinity.
constexpr bool IsInfiniteDuration(Duration d) { return GetRepLo(d) == ~0U; }
// Returns an infinite Duration with the opposite sign.
// REQUIRES: IsInfiniteDuration(d)
constexpr Duration OppositeInfinity(Duration d) {
return GetRepHi(d) < 0
- ? MakeDuration(std::numeric_limits<int64_t>::max(), ~0U)
- : MakeDuration(std::numeric_limits<int64_t>::min(), ~0U);
+ ? MakeDuration((std::numeric_limits<int64_t>::max)(), ~0U)
+ : MakeDuration((std::numeric_limits<int64_t>::min)(), ~0U);
}
// Returns (-n)-1 (equivalently -(n+1)) without avoidable overflow.
@@ -1158,14 +1378,14 @@ constexpr Duration FromInt64(int64_t v, std::ratio<1, N>) {
v / N, v % N * kTicksPerNanosecond * 1000 * 1000 * 1000 / N);
}
constexpr Duration FromInt64(int64_t v, std::ratio<60>) {
- return (v <= std::numeric_limits<int64_t>::max() / 60 &&
- v >= std::numeric_limits<int64_t>::min() / 60)
+ return (v <= (std::numeric_limits<int64_t>::max)() / 60 &&
+ v >= (std::numeric_limits<int64_t>::min)() / 60)
? MakeDuration(v * 60)
: v > 0 ? InfiniteDuration() : -InfiniteDuration();
}
constexpr Duration FromInt64(int64_t v, std::ratio<3600>) {
- return (v <= std::numeric_limits<int64_t>::max() / 3600 &&
- v >= std::numeric_limits<int64_t>::min() / 3600)
+ return (v <= (std::numeric_limits<int64_t>::max)() / 3600 &&
+ v >= (std::numeric_limits<int64_t>::min)() / 3600)
? MakeDuration(v * 3600)
: v > 0 ? InfiniteDuration() : -InfiniteDuration();
}
@@ -1224,8 +1444,8 @@ T ToChronoDuration(Duration d) {
if (time_internal::IsInfiniteDuration(d))
return d < ZeroDuration() ? T::min() : T::max();
const auto v = ToInt64(d, Period{});
- if (v > std::numeric_limits<Rep>::max()) return T::max();
- if (v < std::numeric_limits<Rep>::min()) return T::min();
+ if (v > (std::numeric_limits<Rep>::max)()) return T::max();
+ if (v < (std::numeric_limits<Rep>::min)()) return T::min();
return T{v};
}
@@ -1252,7 +1472,8 @@ constexpr Duration Hours(int64_t n) {
constexpr bool operator<(Duration lhs, Duration rhs) {
return time_internal::GetRepHi(lhs) != time_internal::GetRepHi(rhs)
? time_internal::GetRepHi(lhs) < time_internal::GetRepHi(rhs)
- : time_internal::GetRepHi(lhs) == std::numeric_limits<int64_t>::min()
+ : time_internal::GetRepHi(lhs) ==
+ (std::numeric_limits<int64_t>::min)()
? time_internal::GetRepLo(lhs) + 1 <
time_internal::GetRepLo(rhs) + 1
: time_internal::GetRepLo(lhs) <
@@ -1277,7 +1498,8 @@ constexpr Duration operator-(Duration d) {
// a second's worth of ticks and avoid overflow (as negating int64_t-min + 1
// is safe).
return time_internal::GetRepLo(d) == 0
- ? time_internal::GetRepHi(d) == std::numeric_limits<int64_t>::min()
+ ? time_internal::GetRepHi(d) ==
+ (std::numeric_limits<int64_t>::min)()
? InfiniteDuration()
: time_internal::MakeDuration(-time_internal::GetRepHi(d))
: time_internal::IsInfiniteDuration(d)
@@ -1290,7 +1512,8 @@ constexpr Duration operator-(Duration d) {
}
constexpr Duration InfiniteDuration() {
- return time_internal::MakeDuration(std::numeric_limits<int64_t>::max(), ~0U);
+ return time_internal::MakeDuration((std::numeric_limits<int64_t>::max)(),
+ ~0U);
}
constexpr Duration FromChrono(const std::chrono::nanoseconds& d) {
@@ -1332,7 +1555,7 @@ constexpr Time FromTimeT(time_t t) {
return time_internal::FromUnixDuration(Seconds(t));
}
-} // inline namespace lts_2018_06_20
+} // inline namespace lts_2018_12_18
} // namespace absl
#endif // ABSL_TIME_TIME_H_
diff --git a/absl/time/time_benchmark.cc b/absl/time/time_benchmark.cc
index e1009946..9bbed6f8 100644
--- a/absl/time/time_benchmark.cc
+++ b/absl/time/time_benchmark.cc
@@ -169,32 +169,32 @@ void BM_Time_ToUnixSeconds(benchmark::State& state) {
BENCHMARK(BM_Time_ToUnixSeconds);
//
-// FromDateTime
+// FromCivil
//
-// In each "FromDateTime" benchmark we switch between two YMDhms
-// values separated by at least one transition in order to defeat any
-// internal caching of previous results (e.g., see time_local_hint_).
+// In each "FromCivil" benchmark we switch between two YMDhms values
+// separated by at least one transition in order to defeat any internal
+// caching of previous results (e.g., see time_local_hint_).
//
// The "UTC" variants use UTC instead of the Google/local time zone.
// The "Day0" variants require normalization of the day of month.
//
-void BM_Time_FromDateTime_Absl(benchmark::State& state) {
+void BM_Time_FromCivil_Absl(benchmark::State& state) {
const absl::TimeZone tz =
absl::time_internal::LoadTimeZone("America/Los_Angeles");
int i = 0;
while (state.KeepRunning()) {
if ((i & 1) == 0) {
- absl::FromDateTime(2014, 12, 18, 20, 16, 18, tz);
+ absl::FromCivil(absl::CivilSecond(2014, 12, 18, 20, 16, 18), tz);
} else {
- absl::FromDateTime(2013, 11, 15, 18, 30, 27, tz);
+ absl::FromCivil(absl::CivilSecond(2013, 11, 15, 18, 30, 27), tz);
}
++i;
}
}
-BENCHMARK(BM_Time_FromDateTime_Absl);
+BENCHMARK(BM_Time_FromCivil_Absl);
-void BM_Time_FromDateTime_Libc(benchmark::State& state) {
+void BM_Time_FromCivil_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
int i = 0;
while (state.KeepRunning()) {
@@ -219,32 +219,32 @@ void BM_Time_FromDateTime_Libc(benchmark::State& state) {
++i;
}
}
-BENCHMARK(BM_Time_FromDateTime_Libc);
+BENCHMARK(BM_Time_FromCivil_Libc);
-void BM_Time_FromDateTimeUTC_Absl(benchmark::State& state) {
+void BM_Time_FromCivilUTC_Absl(benchmark::State& state) {
const absl::TimeZone tz = absl::UTCTimeZone();
while (state.KeepRunning()) {
- FromDateTime(2014, 12, 18, 20, 16, 18, tz);
+ absl::FromCivil(absl::CivilSecond(2014, 12, 18, 20, 16, 18), tz);
}
}
-BENCHMARK(BM_Time_FromDateTimeUTC_Absl);
+BENCHMARK(BM_Time_FromCivilUTC_Absl);
-void BM_Time_FromDateTimeDay0_Absl(benchmark::State& state) {
+void BM_Time_FromCivilDay0_Absl(benchmark::State& state) {
const absl::TimeZone tz =
absl::time_internal::LoadTimeZone("America/Los_Angeles");
int i = 0;
while (state.KeepRunning()) {
if ((i & 1) == 0) {
- absl::FromDateTime(2014, 12, 0, 20, 16, 18, tz);
+ absl::FromCivil(absl::CivilSecond(2014, 12, 0, 20, 16, 18), tz);
} else {
- absl::FromDateTime(2013, 11, 0, 18, 30, 27, tz);
+ absl::FromCivil(absl::CivilSecond(2013, 11, 0, 18, 30, 27), tz);
}
++i;
}
}
-BENCHMARK(BM_Time_FromDateTimeDay0_Absl);
+BENCHMARK(BM_Time_FromCivilDay0_Absl);
-void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
+void BM_Time_FromCivilDay0_Libc(benchmark::State& state) {
// No timezone support, so just use localtime.
int i = 0;
while (state.KeepRunning()) {
@@ -269,7 +269,7 @@ void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
++i;
}
}
-BENCHMARK(BM_Time_FromDateTimeDay0_Libc);
+BENCHMARK(BM_Time_FromCivilDay0_Libc);
//
// To/FromTimespec
diff --git a/absl/time/time_norm_test.cc b/absl/time/time_norm_test.cc
deleted file mode 100644
index 4436242e..00000000
--- a/absl/time/time_norm_test.cc
+++ /dev/null
@@ -1,306 +0,0 @@
-// Copyright 2017 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// This file contains tests for FromDateTime() normalization, which is
-// time-zone independent so we just use UTC throughout.
-
-#include <cstdint>
-#include <limits>
-
-#include "gmock/gmock.h"
-#include "gtest/gtest.h"
-#include "absl/time/internal/test_util.h"
-#include "absl/time/time.h"
-
-namespace {
-
-TEST(TimeNormCase, SimpleOverflow) {
- const absl::TimeZone utc = absl::UTCTimeZone();
-
- absl::TimeConversion tc =
- absl::ConvertDateTime(2013, 11, 15, 16, 32, 59 + 1, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 16, 33, 0, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 16, 59 + 1, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 17, 0, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 23 + 1, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 16, 0, 32, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 30 + 1, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 12, 1, 16, 32, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 12 + 1, 15, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2014, 1, 15, 16, 32, 14, 0, false);
-}
-
-TEST(TimeNormCase, SimpleUnderflow) {
- const absl::TimeZone utc = absl::UTCTimeZone();
-
- absl::TimeConversion tc = ConvertDateTime(2013, 11, 15, 16, 32, 0 - 1, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 16, 31, 59, 0, false);
-
- tc = ConvertDateTime(2013, 11, 15, 16, 0 - 1, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 15, 59, 14, 0, false);
-
- tc = ConvertDateTime(2013, 11, 15, 0 - 1, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 14, 23, 32, 14, 0, false);
-
- tc = ConvertDateTime(2013, 11, 1 - 1, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 10, 31, 16, 32, 14, 0, false);
-
- tc = ConvertDateTime(2013, 1 - 1, 15, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2012, 12, 15, 16, 32, 14, 0, false);
-}
-
-TEST(TimeNormCase, MultipleOverflow) {
- const absl::TimeZone utc = absl::UTCTimeZone();
- absl::TimeConversion tc = ConvertDateTime(2013, 12, 31, 23, 59, 59 + 1, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2014, 1, 1, 0, 0, 0, 0, false);
-}
-
-TEST(TimeNormCase, MultipleUnderflow) {
- const absl::TimeZone utc = absl::UTCTimeZone();
- absl::TimeConversion tc = absl::ConvertDateTime(2014, 1, 1, 0, 0, 0 - 1, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 12, 31, 23, 59, 59, 0, false);
-}
-
-TEST(TimeNormCase, OverflowLimits) {
- const absl::TimeZone utc = absl::UTCTimeZone();
- absl::TimeConversion tc;
- absl::Time::Breakdown bd;
-
- const int kintmax = std::numeric_limits<int>::max();
- tc = absl::ConvertDateTime(0, kintmax, kintmax, kintmax, kintmax, kintmax,
- utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 185085715, 11, 27, 12, 21, 7, 0, false);
-
- const int kintmin = std::numeric_limits<int>::min();
- tc = absl::ConvertDateTime(0, kintmin, kintmin, kintmin, kintmin, kintmin,
- utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, -185085717, 10, 31, 10, 37, 52, 0, false);
-
- const int64_t max_year = std::numeric_limits<int64_t>::max();
- tc = absl::ConvertDateTime(max_year, 12, 31, 23, 59, 59, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- EXPECT_EQ(absl::InfiniteFuture(), tc.pre);
-
- const int64_t min_year = std::numeric_limits<int64_t>::min();
- tc = absl::ConvertDateTime(min_year, 1, 1, 0, 0, 0, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- EXPECT_EQ(absl::InfinitePast(), tc.pre);
-}
-
-TEST(TimeNormCase, ComplexOverflow) {
- const absl::TimeZone utc = absl::UTCTimeZone();
-
- absl::TimeConversion tc =
- ConvertDateTime(2013, 11, 15, 16, 32, 14 + 123456789, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2017, 10, 14, 14, 5, 23, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 16, 32 + 1234567, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2016, 3, 22, 0, 39, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 16 + 123456, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2027, 12, 16, 16, 32, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15 + 1234, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2017, 4, 2, 16, 32, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11 + 123, 15, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2024, 2, 15, 16, 32, 14, 0, false);
-}
-
-TEST(TimeNormCase, ComplexUnderflow) {
- const absl::TimeZone utc = absl::UTCTimeZone();
-
- absl::TimeConversion tc =
- absl::ConvertDateTime(1999, 3, 0, 0, 0, 0, utc); // year 400
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1999, 2, 28, 0, 0, 0, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 16, 32, 14 - 123456789, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2009, 12, 17, 18, 59, 5, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 16, 32 - 1234567, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2011, 7, 12, 8, 25, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15, 16 - 123456, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1999, 10, 16, 16, 32, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11, 15 - 1234, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2010, 6, 30, 16, 32, 14, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11 - 123, 15, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2003, 8, 15, 16, 32, 14, 0, false);
-}
-
-TEST(TimeNormCase, Mishmash) {
- const absl::TimeZone utc = absl::UTCTimeZone();
-
- absl::TimeConversion tc =
- absl::ConvertDateTime(2013, 11 - 123, 15 + 1234, 16 - 123456,
- 32 + 1234567, 14 - 123456789, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1991, 5, 9, 3, 6, 5, 0, false);
-
- tc = absl::ConvertDateTime(2013, 11 + 123, 15 - 1234, 16 + 123456,
- 32 - 1234567, 14 + 123456789, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2036, 5, 24, 5, 58, 23, 0, false);
-
- // Here is a normalization case we got wrong for a while. Because the
- // day is converted to "1" within a 400-year (146097-day) period, we
- // didn't need to roll the month and so we didn't mark it as normalized.
- tc = absl::ConvertDateTime(2013, 11, -146097 + 1, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1613, 11, 1, 16, 32, 14, 0, false);
-
- // Even though the month overflow compensates for the day underflow,
- // this should still be marked as normalized.
- tc = absl::ConvertDateTime(2013, 11 + 400 * 12, -146097 + 1, 16, 32, 14, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 1, 16, 32, 14, 0, false);
-}
-
-TEST(TimeNormCase, LeapYears) {
- const absl::TimeZone utc = absl::UTCTimeZone();
-
- absl::TimeConversion tc =
- absl::ConvertDateTime(2013, 2, 28 + 1, 0, 0, 0, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- absl::Time::Breakdown bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 3, 1, 0, 0, 0, 0, false);
-
- tc = absl::ConvertDateTime(2012, 2, 28 + 1, 0, 0, 0, utc);
- EXPECT_FALSE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2012, 2, 29, 0, 0, 0, 0, false);
-
- tc = absl::ConvertDateTime(2000, 2, 28 + 1, 0, 0, 0, utc);
- EXPECT_FALSE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 2000, 2, 29, 0, 0, 0, 0, false);
-
- tc = absl::ConvertDateTime(1900, 2, 28 + 1, 0, 0, 0, utc);
- EXPECT_TRUE(tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- bd = tc.pre.In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1900, 3, 1, 0, 0, 0, 0, false);
-}
-
-// Convert all the days from 1970-1-1 to 1970-1-146097 (aka 2369-12-31)
-// and check that they normalize to the expected time. 146097 days span
-// the 400-year Gregorian cycle used during normalization.
-TEST(TimeNormCase, AllTheDays) {
- const absl::TimeZone utc = absl::UTCTimeZone();
- absl::Time exp_time = absl::UnixEpoch();
-
- for (int day = 1; day <= 146097; ++day) {
- absl::TimeConversion tc = absl::ConvertDateTime(1970, 1, day, 0, 0, 0, utc);
- EXPECT_EQ(day > 31, tc.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
- EXPECT_EQ(exp_time, tc.pre);
- exp_time += absl::Hours(24);
- }
-}
-
-} // namespace
diff --git a/absl/time/time_test.cc b/absl/time/time_test.cc
index 4f8f58a6..4d710709 100644
--- a/absl/time/time_test.cc
+++ b/absl/time/time_test.cc
@@ -28,6 +28,27 @@
namespace {
+#if GTEST_USES_SIMPLE_RE
+const char kZoneAbbrRE[] = ".*"; // just punt
+#else
+const char kZoneAbbrRE[] = "[A-Za-z]{3,4}|[-+][0-9]{2}([0-9]{2})?";
+#endif
+
+// This helper is a macro so that failed expectations show up with the
+// correct line numbers.
+#define EXPECT_CIVIL_INFO(ci, y, m, d, h, min, s, off, isdst) \
+ do { \
+ EXPECT_EQ(y, ci.cs.year()); \
+ EXPECT_EQ(m, ci.cs.month()); \
+ EXPECT_EQ(d, ci.cs.day()); \
+ EXPECT_EQ(h, ci.cs.hour()); \
+ EXPECT_EQ(min, ci.cs.minute()); \
+ EXPECT_EQ(s, ci.cs.second()); \
+ EXPECT_EQ(off, ci.offset); \
+ EXPECT_EQ(isdst, ci.is_dst); \
+ EXPECT_THAT(ci.zone_abbr, testing::MatchesRegex(kZoneAbbrRE)); \
+ } while (0)
+
// A gMock matcher to match timespec values. Use this matcher like:
// timespec ts1, ts2;
// EXPECT_THAT(ts1, TimespecMatcher(ts2));
@@ -84,10 +105,10 @@ TEST(Time, ValueSemantics) {
}
TEST(Time, UnixEpoch) {
- absl::Time::Breakdown bd = absl::UnixEpoch().In(absl::UTCTimeZone());
- ABSL_INTERNAL_EXPECT_TIME(bd, 1970, 1, 1, 0, 0, 0, 0, false);
- EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
- EXPECT_EQ(4, bd.weekday); // Thursday
+ const auto ci = absl::UTCTimeZone().At(absl::UnixEpoch());
+ EXPECT_EQ(absl::CivilSecond(1970, 1, 1, 0, 0, 0), ci.cs);
+ EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
+ EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(absl::CivilDay(ci.cs)));
}
TEST(Time, Breakdown) {
@@ -95,26 +116,26 @@ TEST(Time, Breakdown) {
absl::Time t = absl::UnixEpoch();
// The Unix epoch as seen in NYC.
- absl::Time::Breakdown bd = t.In(tz);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1969, 12, 31, 19, 0, 0, -18000, false);
- EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
- EXPECT_EQ(3, bd.weekday); // Wednesday
+ auto ci = tz.At(t);
+ EXPECT_CIVIL_INFO(ci, 1969, 12, 31, 19, 0, 0, -18000, false);
+ EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
+ EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(absl::CivilDay(ci.cs)));
// Just before the epoch.
t -= absl::Nanoseconds(1);
- bd = t.In(tz);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1969, 12, 31, 18, 59, 59, -18000, false);
- EXPECT_EQ(absl::Nanoseconds(999999999), bd.subsecond);
- EXPECT_EQ(3, bd.weekday); // Wednesday
+ ci = tz.At(t);
+ EXPECT_CIVIL_INFO(ci, 1969, 12, 31, 18, 59, 59, -18000, false);
+ EXPECT_EQ(absl::Nanoseconds(999999999), ci.subsecond);
+ EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(absl::CivilDay(ci.cs)));
// Some time later.
t += absl::Hours(24) * 2735;
t += absl::Hours(18) + absl::Minutes(30) + absl::Seconds(15) +
absl::Nanoseconds(9);
- bd = t.In(tz);
- ABSL_INTERNAL_EXPECT_TIME(bd, 1977, 6, 28, 14, 30, 15, -14400, true);
- EXPECT_EQ(8, bd.subsecond / absl::Nanoseconds(1));
- EXPECT_EQ(2, bd.weekday); // Tuesday
+ ci = tz.At(t);
+ EXPECT_CIVIL_INFO(ci, 1977, 6, 28, 14, 30, 15, -14400, true);
+ EXPECT_EQ(8, ci.subsecond / absl::Nanoseconds(1));
+ EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(absl::CivilDay(ci.cs)));
}
TEST(Time, AdditiveOperators) {
@@ -550,67 +571,63 @@ TEST(Time, ToChronoTime) {
absl::ToChronoTime(absl::UnixEpoch() - tick));
}
-TEST(Time, ConvertDateTime) {
- const absl::TimeZone utc = absl::UTCTimeZone();
- const absl::TimeZone goog =
- absl::time_internal::LoadTimeZone("America/Los_Angeles");
+TEST(Time, TimeZoneAt) {
const absl::TimeZone nyc =
absl::time_internal::LoadTimeZone("America/New_York");
const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)";
- // A simple case of normalization.
- absl::TimeConversion oct32 = ConvertDateTime(2013, 10, 32, 8, 30, 0, goog);
- EXPECT_TRUE(oct32.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, oct32.kind);
- absl::TimeConversion nov01 = ConvertDateTime(2013, 11, 1, 8, 30, 0, goog);
- EXPECT_FALSE(nov01.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, nov01.kind);
- EXPECT_EQ(oct32.pre, nov01.pre);
- EXPECT_EQ("Fri, 1 Nov 2013 08:30:00 -0700 (PDT)",
- absl::FormatTime(fmt, nov01.pre, goog));
+ // A non-transition where the civil time is unique.
+ absl::CivilSecond nov01(2013, 11, 1, 8, 30, 0);
+ const auto nov01_ci = nyc.At(nov01);
+ EXPECT_EQ(absl::TimeZone::TimeInfo::UNIQUE, nov01_ci.kind);
+ EXPECT_EQ("Fri, 1 Nov 2013 08:30:00 -0400 (EDT)",
+ absl::FormatTime(fmt, nov01_ci.pre, nyc));
+ EXPECT_EQ(nov01_ci.pre, nov01_ci.trans);
+ EXPECT_EQ(nov01_ci.pre, nov01_ci.post);
+ EXPECT_EQ(nov01_ci.pre, absl::FromCivil(nov01, nyc));
// A Spring DST transition, when there is a gap in civil time
// and we prefer the later of the possible interpretations of a
// non-existent time.
- absl::TimeConversion mar13 = ConvertDateTime(2011, 3, 13, 2, 15, 0, nyc);
- EXPECT_FALSE(mar13.normalized);
- EXPECT_EQ(absl::TimeConversion::SKIPPED, mar13.kind);
+ absl::CivilSecond mar13(2011, 3, 13, 2, 15, 0);
+ const auto mar_ci = nyc.At(mar13);
+ EXPECT_EQ(absl::TimeZone::TimeInfo::SKIPPED, mar_ci.kind);
EXPECT_EQ("Sun, 13 Mar 2011 03:15:00 -0400 (EDT)",
- absl::FormatTime(fmt, mar13.pre, nyc));
+ absl::FormatTime(fmt, mar_ci.pre, nyc));
EXPECT_EQ("Sun, 13 Mar 2011 03:00:00 -0400 (EDT)",
- absl::FormatTime(fmt, mar13.trans, nyc));
+ absl::FormatTime(fmt, mar_ci.trans, nyc));
EXPECT_EQ("Sun, 13 Mar 2011 01:15:00 -0500 (EST)",
- absl::FormatTime(fmt, mar13.post, nyc));
- EXPECT_EQ(mar13.pre, absl::FromDateTime(2011, 3, 13, 2, 15, 0, nyc));
+ absl::FormatTime(fmt, mar_ci.post, nyc));
+ EXPECT_EQ(mar_ci.trans, absl::FromCivil(mar13, nyc));
// A Fall DST transition, when civil times are repeated and
// we prefer the earlier of the possible interpretations of an
// ambiguous time.
- absl::TimeConversion nov06 = ConvertDateTime(2011, 11, 6, 1, 15, 0, nyc);
- EXPECT_FALSE(nov06.normalized);
- EXPECT_EQ(absl::TimeConversion::REPEATED, nov06.kind);
+ absl::CivilSecond nov06(2011, 11, 6, 1, 15, 0);
+ const auto nov06_ci = nyc.At(nov06);
+ EXPECT_EQ(absl::TimeZone::TimeInfo::REPEATED, nov06_ci.kind);
EXPECT_EQ("Sun, 6 Nov 2011 01:15:00 -0400 (EDT)",
- absl::FormatTime(fmt, nov06.pre, nyc));
+ absl::FormatTime(fmt, nov06_ci.pre, nyc));
EXPECT_EQ("Sun, 6 Nov 2011 01:00:00 -0500 (EST)",
- absl::FormatTime(fmt, nov06.trans, nyc));
+ absl::FormatTime(fmt, nov06_ci.trans, nyc));
EXPECT_EQ("Sun, 6 Nov 2011 01:15:00 -0500 (EST)",
- absl::FormatTime(fmt, nov06.post, nyc));
- EXPECT_EQ(nov06.pre, absl::FromDateTime(2011, 11, 6, 1, 15, 0, nyc));
+ absl::FormatTime(fmt, nov06_ci.post, nyc));
+ EXPECT_EQ(nov06_ci.pre, absl::FromCivil(nov06, nyc));
// Check that (time_t) -1 is handled correctly.
- absl::TimeConversion minus1 = ConvertDateTime(1969, 12, 31, 18, 59, 59, nyc);
- EXPECT_FALSE(minus1.normalized);
- EXPECT_EQ(absl::TimeConversion::UNIQUE, minus1.kind);
- EXPECT_EQ(-1, absl::ToTimeT(minus1.pre));
+ absl::CivilSecond minus1(1969, 12, 31, 18, 59, 59);
+ const auto minus1_cl = nyc.At(minus1);
+ EXPECT_EQ(absl::TimeZone::TimeInfo::UNIQUE, minus1_cl.kind);
+ EXPECT_EQ(-1, absl::ToTimeT(minus1_cl.pre));
EXPECT_EQ("Wed, 31 Dec 1969 18:59:59 -0500 (EST)",
- absl::FormatTime(fmt, minus1.pre, nyc));
+ absl::FormatTime(fmt, minus1_cl.pre, nyc));
EXPECT_EQ("Wed, 31 Dec 1969 23:59:59 +0000 (UTC)",
- absl::FormatTime(fmt, minus1.pre, utc));
+ absl::FormatTime(fmt, minus1_cl.pre, absl::UTCTimeZone()));
}
-// FromDateTime(year, mon, day, hour, min, sec, UTCTimeZone()) has
-// a specialized fastpath implementation which we exercise here.
-TEST(Time, FromDateTimeUTC) {
+// FromCivil(CivilSecond(year, mon, day, hour, min, sec), UTCTimeZone())
+// has a specialized fastpath implementation, which we exercise here.
+TEST(Time, FromCivilUTC) {
const absl::TimeZone utc = absl::UTCTimeZone();
const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)";
const int kMax = std::numeric_limits<int>::max();
@@ -618,65 +635,36 @@ TEST(Time, FromDateTimeUTC) {
absl::Time t;
// 292091940881 is the last positive year to use the fastpath.
- t = absl::FromDateTime(292091940881, kMax, kMax, kMax, kMax, kMax, utc);
+ t = absl::FromCivil(
+ absl::CivilSecond(292091940881, kMax, kMax, kMax, kMax, kMax), utc);
EXPECT_EQ("Fri, 25 Nov 292277026596 12:21:07 +0000 (UTC)",
absl::FormatTime(fmt, t, utc));
- t = absl::FromDateTime(292091940882, kMax, kMax, kMax, kMax, kMax, utc);
- EXPECT_EQ("infinite-future", absl::FormatTime(fmt, t, utc)); // no overflow
- t = absl::FromDateTime(
- std::numeric_limits<int64_t>::max(), kMax, kMax, kMax, kMax, kMax, utc);
+ t = absl::FromCivil(
+ absl::CivilSecond(292091940882, kMax, kMax, kMax, kMax, kMax), utc);
EXPECT_EQ("infinite-future", absl::FormatTime(fmt, t, utc)); // no overflow
// -292091936940 is the last negative year to use the fastpath.
- t = absl::FromDateTime(-292091936940, kMin, kMin, kMin, kMin, kMin, utc);
+ t = absl::FromCivil(
+ absl::CivilSecond(-292091936940, kMin, kMin, kMin, kMin, kMin), utc);
EXPECT_EQ("Fri, 1 Nov -292277022657 10:37:52 +0000 (UTC)",
absl::FormatTime(fmt, t, utc));
- t = absl::FromDateTime(-292091936941, kMin, kMin, kMin, kMin, kMin, utc);
+ t = absl::FromCivil(
+ absl::CivilSecond(-292091936941, kMin, kMin, kMin, kMin, kMin), utc);
EXPECT_EQ("infinite-past", absl::FormatTime(fmt, t, utc)); // no underflow
- t = absl::FromDateTime(
- std::numeric_limits<int64_t>::min(), kMin, kMin, kMin, kMin, kMin, utc);
- EXPECT_EQ("infinite-past", absl::FormatTime(fmt, t, utc)); // no overflow
// Check that we're counting leap years correctly.
- t = absl::FromDateTime(1900, 2, 28, 23, 59, 59, utc);
+ t = absl::FromCivil(absl::CivilSecond(1900, 2, 28, 23, 59, 59), utc);
EXPECT_EQ("Wed, 28 Feb 1900 23:59:59 +0000 (UTC)",
absl::FormatTime(fmt, t, utc));
- t = absl::FromDateTime(1900, 3, 1, 0, 0, 0, utc);
+ t = absl::FromCivil(absl::CivilSecond(1900, 3, 1, 0, 0, 0), utc);
EXPECT_EQ("Thu, 1 Mar 1900 00:00:00 +0000 (UTC)",
absl::FormatTime(fmt, t, utc));
- t = absl::FromDateTime(2000, 2, 29, 23, 59, 59, utc);
+ t = absl::FromCivil(absl::CivilSecond(2000, 2, 29, 23, 59, 59), utc);
EXPECT_EQ("Tue, 29 Feb 2000 23:59:59 +0000 (UTC)",
absl::FormatTime(fmt, t, utc));
- t = absl::FromDateTime(2000, 3, 1, 0, 0, 0, utc);
+ t = absl::FromCivil(absl::CivilSecond(2000, 3, 1, 0, 0, 0), utc);
EXPECT_EQ("Wed, 1 Mar 2000 00:00:00 +0000 (UTC)",
absl::FormatTime(fmt, t, utc));
-
- // Check normalization.
- const std::string ymdhms = "%Y-%m-%d %H:%M:%S";
- t = absl::FromDateTime(2015, 1, 1, 0, 0, 60, utc);
- EXPECT_EQ("2015-01-01 00:01:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, 1, 0, 60, 0, utc);
- EXPECT_EQ("2015-01-01 01:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, 1, 24, 0, 0, utc);
- EXPECT_EQ("2015-01-02 00:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, 32, 0, 0, 0, utc);
- EXPECT_EQ("2015-02-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 13, 1, 0, 0, 0, utc);
- EXPECT_EQ("2016-01-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 13, 32, 60, 60, 60, utc);
- EXPECT_EQ("2016-02-03 13:01:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, 1, 0, 0, -1, utc);
- EXPECT_EQ("2014-12-31 23:59:59", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, 1, 0, -1, 0, utc);
- EXPECT_EQ("2014-12-31 23:59:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, 1, -1, 0, 0, utc);
- EXPECT_EQ("2014-12-31 23:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, 1, -1, 0, 0, 0, utc);
- EXPECT_EQ("2014-12-30 00:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, -1, 1, 0, 0, 0, utc);
- EXPECT_EQ("2014-11-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
- t = absl::FromDateTime(2015, -1, -1, -1, -1, -1, utc);
- EXPECT_EQ("2014-10-29 22:58:59", absl::FormatTime(ymdhms, t, utc));
}
TEST(Time, ToTM) {
@@ -684,8 +672,10 @@ TEST(Time, ToTM) {
// Compares the results of ToTM() to gmtime_r() for lots of times over the
// course of a few days.
- const absl::Time start = absl::FromDateTime(2014, 1, 2, 3, 4, 5, utc);
- const absl::Time end = absl::FromDateTime(2014, 1, 5, 3, 4, 5, utc);
+ const absl::Time start =
+ absl::FromCivil(absl::CivilSecond(2014, 1, 2, 3, 4, 5), utc);
+ const absl::Time end =
+ absl::FromCivil(absl::CivilSecond(2014, 1, 5, 3, 4, 5), utc);
for (absl::Time t = start; t < end; t += absl::Seconds(30)) {
const struct tm tm_bt = ToTM(t, utc);
const time_t tt = absl::ToTimeT(t);
@@ -711,12 +701,12 @@ TEST(Time, ToTM) {
// Checks that the tm_isdst field is correct when in standard time.
const absl::TimeZone nyc =
absl::time_internal::LoadTimeZone("America/New_York");
- absl::Time t = absl::FromDateTime(2014, 3, 1, 0, 0, 0, nyc);
+ absl::Time t = absl::FromCivil(absl::CivilSecond(2014, 3, 1, 0, 0, 0), nyc);
struct tm tm = ToTM(t, nyc);
EXPECT_FALSE(tm.tm_isdst);
// Checks that the tm_isdst field is correct when in daylight time.
- t = absl::FromDateTime(2014, 4, 1, 0, 0, 0, nyc);
+ t = absl::FromCivil(absl::CivilSecond(2014, 4, 1, 0, 0, 0), nyc);
tm = ToTM(t, nyc);
EXPECT_TRUE(tm.tm_isdst);
@@ -808,8 +798,8 @@ TEST(Time, TMRoundTrip) {
absl::time_internal::LoadTimeZone("America/New_York");
// Test round-tripping across a skipped transition
- absl::Time start = absl::FromDateTime(2014, 3, 9, 0, 0, 0, nyc);
- absl::Time end = absl::FromDateTime(2014, 3, 9, 4, 0, 0, nyc);
+ absl::Time start = absl::FromCivil(absl::CivilHour(2014, 3, 9, 0), nyc);
+ absl::Time end = absl::FromCivil(absl::CivilHour(2014, 3, 9, 4), nyc);
for (absl::Time t = start; t < end; t += absl::Minutes(1)) {
struct tm tm = ToTM(t, nyc);
absl::Time rt = FromTM(tm, nyc);
@@ -817,8 +807,8 @@ TEST(Time, TMRoundTrip) {
}
// Test round-tripping across an ambiguous transition
- start = absl::FromDateTime(2014, 11, 2, 0, 0, 0, nyc);
- end = absl::FromDateTime(2014, 11, 2, 4, 0, 0, nyc);
+ start = absl::FromCivil(absl::CivilHour(2014, 11, 2, 0), nyc);
+ end = absl::FromCivil(absl::CivilHour(2014, 11, 2, 4), nyc);
for (absl::Time t = start; t < end; t += absl::Minutes(1)) {
struct tm tm = ToTM(t, nyc);
absl::Time rt = FromTM(tm, nyc);
@@ -826,8 +816,8 @@ TEST(Time, TMRoundTrip) {
}
// Test round-tripping of unique instants crossing a day boundary
- start = absl::FromDateTime(2014, 6, 27, 22, 0, 0, nyc);
- end = absl::FromDateTime(2014, 6, 28, 4, 0, 0, nyc);
+ start = absl::FromCivil(absl::CivilHour(2014, 6, 27, 22), nyc);
+ end = absl::FromCivil(absl::CivilHour(2014, 6, 28, 4), nyc);
for (absl::Time t = start; t < end; t += absl::Minutes(1)) {
struct tm tm = ToTM(t, nyc);
absl::Time rt = FromTM(tm, nyc);
@@ -980,27 +970,27 @@ TEST(Time, ConversionSaturation) {
EXPECT_EQ(min_timespec_sec, ts.tv_sec);
EXPECT_EQ(0, ts.tv_nsec);
- // Checks how Time::In() saturates on infinities.
- absl::Time::Breakdown bd = absl::InfiniteFuture().In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, std::numeric_limits<int64_t>::max(), 12, 31, 23,
+ // Checks how TimeZone::At() saturates on infinities.
+ auto ci = utc.At(absl::InfiniteFuture());
+ EXPECT_CIVIL_INFO(ci, std::numeric_limits<int64_t>::max(), 12, 31, 23,
59, 59, 0, false);
- EXPECT_EQ(absl::InfiniteDuration(), bd.subsecond);
- EXPECT_EQ(4, bd.weekday); // Thursday
- EXPECT_EQ(365, bd.yearday);
- EXPECT_STREQ("-00", bd.zone_abbr); // artifact of absl::Time::In()
- bd = absl::InfinitePast().In(utc);
- ABSL_INTERNAL_EXPECT_TIME(bd, std::numeric_limits<int64_t>::min(), 1, 1, 0, 0,
+ EXPECT_EQ(absl::InfiniteDuration(), ci.subsecond);
+ EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(absl::CivilDay(ci.cs)));
+ EXPECT_EQ(365, absl::GetYearDay(absl::CivilDay(ci.cs)));
+ EXPECT_STREQ("-00", ci.zone_abbr); // artifact of TimeZone::At()
+ ci = utc.At(absl::InfinitePast());
+ EXPECT_CIVIL_INFO(ci, std::numeric_limits<int64_t>::min(), 1, 1, 0, 0,
0, 0, false);
- EXPECT_EQ(-absl::InfiniteDuration(), bd.subsecond);
- EXPECT_EQ(7, bd.weekday); // Sunday
- EXPECT_EQ(1, bd.yearday);
- EXPECT_STREQ("-00", bd.zone_abbr); // artifact of absl::Time::In()
+ EXPECT_EQ(-absl::InfiniteDuration(), ci.subsecond);
+ EXPECT_EQ(absl::Weekday::sunday, absl::GetWeekday(absl::CivilDay(ci.cs)));
+ EXPECT_EQ(1, absl::GetYearDay(absl::CivilDay(ci.cs)));
+ EXPECT_STREQ("-00", ci.zone_abbr); // artifact of TimeZone::At()
// Approach the maximal Time value from below.
- t = absl::FromDateTime(292277026596, 12, 4, 15, 30, 6, utc);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 6), utc);
EXPECT_EQ("292277026596-12-04T15:30:06+00:00",
absl::FormatTime(absl::RFC3339_full, t, utc));
- t = absl::FromDateTime(292277026596, 12, 4, 15, 30, 7, utc);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 7), utc);
EXPECT_EQ("292277026596-12-04T15:30:07+00:00",
absl::FormatTime(absl::RFC3339_full, t, utc));
EXPECT_EQ(
@@ -1008,21 +998,21 @@ TEST(Time, ConversionSaturation) {
// Checks that we can also get the maximal Time value for a far-east zone.
const absl::TimeZone plus14 = absl::FixedTimeZone(14 * 60 * 60);
- t = absl::FromDateTime(292277026596, 12, 5, 5, 30, 7, plus14);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 5, 30, 7), plus14);
EXPECT_EQ("292277026596-12-05T05:30:07+14:00",
absl::FormatTime(absl::RFC3339_full, t, plus14));
EXPECT_EQ(
absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), t);
// One second later should push us to infinity.
- t = absl::FromDateTime(292277026596, 12, 4, 15, 30, 8, utc);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 8), utc);
EXPECT_EQ("infinite-future", absl::FormatTime(absl::RFC3339_full, t, utc));
// Approach the minimal Time value from above.
- t = absl::FromDateTime(-292277022657, 1, 27, 8, 29, 53, utc);
+ t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 53), utc);
EXPECT_EQ("-292277022657-01-27T08:29:53+00:00",
absl::FormatTime(absl::RFC3339_full, t, utc));
- t = absl::FromDateTime(-292277022657, 1, 27, 8, 29, 52, utc);
+ t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 52), utc);
EXPECT_EQ("-292277022657-01-27T08:29:52+00:00",
absl::FormatTime(absl::RFC3339_full, t, utc));
EXPECT_EQ(
@@ -1030,14 +1020,15 @@ TEST(Time, ConversionSaturation) {
// Checks that we can also get the minimal Time value for a far-west zone.
const absl::TimeZone minus12 = absl::FixedTimeZone(-12 * 60 * 60);
- t = absl::FromDateTime(-292277022657, 1, 26, 20, 29, 52, minus12);
+ t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 26, 20, 29, 52),
+ minus12);
EXPECT_EQ("-292277022657-01-26T20:29:52-12:00",
absl::FormatTime(absl::RFC3339_full, t, minus12));
EXPECT_EQ(
absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), t);
// One second before should push us to -infinity.
- t = absl::FromDateTime(-292277022657, 1, 27, 8, 29, 51, utc);
+ t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 51), utc);
EXPECT_EQ("infinite-past", absl::FormatTime(absl::RFC3339_full, t, utc));
}
@@ -1051,38 +1042,160 @@ TEST(Time, ExtendedConversionSaturation) {
absl::time_internal::LoadTimeZone("America/New_York");
const absl::Time max =
absl::FromUnixSeconds(std::numeric_limits<int64_t>::max());
- absl::Time::Breakdown bd;
+ absl::TimeZone::CivilInfo ci;
absl::Time t;
// The maximal time converted in each zone.
- bd = max.In(syd);
- ABSL_INTERNAL_EXPECT_TIME(bd, 292277026596, 12, 5, 2, 30, 7, 39600, true);
- t = absl::FromDateTime(292277026596, 12, 5, 2, 30, 7, syd);
+ ci = syd.At(max);
+ EXPECT_CIVIL_INFO(ci, 292277026596, 12, 5, 2, 30, 7, 39600, true);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 7), syd);
EXPECT_EQ(max, t);
- bd = max.In(nyc);
- ABSL_INTERNAL_EXPECT_TIME(bd, 292277026596, 12, 4, 10, 30, 7, -18000, false);
- t = absl::FromDateTime(292277026596, 12, 4, 10, 30, 7, nyc);
+ ci = nyc.At(max);
+ EXPECT_CIVIL_INFO(ci, 292277026596, 12, 4, 10, 30, 7, -18000, false);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 7), nyc);
EXPECT_EQ(max, t);
// One second later should push us to infinity.
- t = absl::FromDateTime(292277026596, 12, 5, 2, 30, 8, syd);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 8), syd);
EXPECT_EQ(absl::InfiniteFuture(), t);
- t = absl::FromDateTime(292277026596, 12, 4, 10, 30, 8, nyc);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 8), nyc);
EXPECT_EQ(absl::InfiniteFuture(), t);
// And we should stick there.
- t = absl::FromDateTime(292277026596, 12, 5, 2, 30, 9, syd);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 9), syd);
EXPECT_EQ(absl::InfiniteFuture(), t);
- t = absl::FromDateTime(292277026596, 12, 4, 10, 30, 9, nyc);
+ t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 9), nyc);
EXPECT_EQ(absl::InfiniteFuture(), t);
// All the way up to a saturated date/time, without overflow.
- t = absl::FromDateTime(
- std::numeric_limits<int64_t>::max(), 12, 31, 23, 59, 59, syd);
+ t = absl::FromCivil(absl::CivilSecond::max(), syd);
EXPECT_EQ(absl::InfiniteFuture(), t);
- t = absl::FromDateTime(
- std::numeric_limits<int64_t>::max(), 12, 31, 23, 59, 59, nyc);
+ t = absl::FromCivil(absl::CivilSecond::max(), nyc);
EXPECT_EQ(absl::InfiniteFuture(), t);
}
+TEST(Time, FromCivilAlignment) {
+ const absl::TimeZone utc = absl::UTCTimeZone();
+ const absl::CivilSecond cs(2015, 2, 3, 4, 5, 6);
+ absl::Time t = absl::FromCivil(cs, utc);
+ EXPECT_EQ("2015-02-03T04:05:06+00:00", absl::FormatTime(t, utc));
+ t = absl::FromCivil(absl::CivilMinute(cs), utc);
+ EXPECT_EQ("2015-02-03T04:05:00+00:00", absl::FormatTime(t, utc));
+ t = absl::FromCivil(absl::CivilHour(cs), utc);
+ EXPECT_EQ("2015-02-03T04:00:00+00:00", absl::FormatTime(t, utc));
+ t = absl::FromCivil(absl::CivilDay(cs), utc);
+ EXPECT_EQ("2015-02-03T00:00:00+00:00", absl::FormatTime(t, utc));
+ t = absl::FromCivil(absl::CivilMonth(cs), utc);
+ EXPECT_EQ("2015-02-01T00:00:00+00:00", absl::FormatTime(t, utc));
+ t = absl::FromCivil(absl::CivilYear(cs), utc);
+ EXPECT_EQ("2015-01-01T00:00:00+00:00", absl::FormatTime(t, utc));
+}
+
+TEST(Time, LegacyDateTime) {
+ const absl::TimeZone utc = absl::UTCTimeZone();
+ const std::string ymdhms = "%Y-%m-%d %H:%M:%S";
+ const int kMax = std::numeric_limits<int>::max();
+ const int kMin = std::numeric_limits<int>::min();
+ absl::Time t;
+
+ t = absl::FromDateTime(std::numeric_limits<absl::civil_year_t>::max(),
+ kMax, kMax, kMax, kMax, kMax, utc);
+ EXPECT_EQ("infinite-future",
+ absl::FormatTime(ymdhms, t, utc)); // no overflow
+ t = absl::FromDateTime(std::numeric_limits<absl::civil_year_t>::min(),
+ kMin, kMin, kMin, kMin, kMin, utc);
+ EXPECT_EQ("infinite-past",
+ absl::FormatTime(ymdhms, t, utc)); // no overflow
+
+ // Check normalization.
+ EXPECT_TRUE(absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, utc).normalized);
+ t = absl::FromDateTime(2015, 1, 1, 0, 0, 60, utc);
+ EXPECT_EQ("2015-01-01 00:01:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, 1, 0, 60, 0, utc);
+ EXPECT_EQ("2015-01-01 01:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, 1, 24, 0, 0, utc);
+ EXPECT_EQ("2015-01-02 00:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, 32, 0, 0, 0, utc);
+ EXPECT_EQ("2015-02-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 13, 1, 0, 0, 0, utc);
+ EXPECT_EQ("2016-01-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 13, 32, 60, 60, 60, utc);
+ EXPECT_EQ("2016-02-03 13:01:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, 1, 0, 0, -1, utc);
+ EXPECT_EQ("2014-12-31 23:59:59", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, 1, 0, -1, 0, utc);
+ EXPECT_EQ("2014-12-31 23:59:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, 1, -1, 0, 0, utc);
+ EXPECT_EQ("2014-12-31 23:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, 1, -1, 0, 0, 0, utc);
+ EXPECT_EQ("2014-12-30 00:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, -1, 1, 0, 0, 0, utc);
+ EXPECT_EQ("2014-11-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
+ t = absl::FromDateTime(2015, -1, -1, -1, -1, -1, utc);
+ EXPECT_EQ("2014-10-29 22:58:59", absl::FormatTime(ymdhms, t, utc));
+}
+
+TEST(Time, NextTransitionUTC) {
+ const auto tz = absl::UTCTimeZone();
+ absl::TimeZone::CivilTransition trans;
+
+ auto t = absl::InfinitePast();
+ EXPECT_FALSE(tz.NextTransition(t, &trans));
+
+ t = absl::InfiniteFuture();
+ EXPECT_FALSE(tz.NextTransition(t, &trans));
+}
+
+TEST(Time, PrevTransitionUTC) {
+ const auto tz = absl::UTCTimeZone();
+ absl::TimeZone::CivilTransition trans;
+
+ auto t = absl::InfiniteFuture();
+ EXPECT_FALSE(tz.PrevTransition(t, &trans));
+
+ t = absl::InfinitePast();
+ EXPECT_FALSE(tz.PrevTransition(t, &trans));
+}
+
+TEST(Time, NextTransitionNYC) {
+ const auto tz = absl::time_internal::LoadTimeZone("America/New_York");
+ absl::TimeZone::CivilTransition trans;
+
+ auto t = absl::FromCivil(absl::CivilSecond(2018, 6, 30, 0, 0, 0), tz);
+ EXPECT_TRUE(tz.NextTransition(t, &trans));
+ EXPECT_EQ(absl::CivilSecond(2018, 11, 4, 2, 0, 0), trans.from);
+ EXPECT_EQ(absl::CivilSecond(2018, 11, 4, 1, 0, 0), trans.to);
+
+ t = absl::InfiniteFuture();
+ EXPECT_FALSE(tz.NextTransition(t, &trans));
+
+ t = absl::InfinitePast();
+ EXPECT_TRUE(tz.NextTransition(t, &trans));
+ if (trans.from == absl::CivilSecond(1918, 03, 31, 2, 0, 0)) {
+ // It looks like the tzdata is only 32 bit (probably macOS),
+ // which bottoms out at 1901-12-13T20:45:52+00:00.
+ EXPECT_EQ(absl::CivilSecond(1918, 3, 31, 3, 0, 0), trans.to);
+ } else {
+ EXPECT_EQ(absl::CivilSecond(1883, 11, 18, 12, 3, 58), trans.from);
+ EXPECT_EQ(absl::CivilSecond(1883, 11, 18, 12, 0, 0), trans.to);
+ }
+}
+
+TEST(Time, PrevTransitionNYC) {
+ const auto tz = absl::time_internal::LoadTimeZone("America/New_York");
+ absl::TimeZone::CivilTransition trans;
+
+ auto t = absl::FromCivil(absl::CivilSecond(2018, 6, 30, 0, 0, 0), tz);
+ EXPECT_TRUE(tz.PrevTransition(t, &trans));
+ EXPECT_EQ(absl::CivilSecond(2018, 3, 11, 2, 0, 0), trans.from);
+ EXPECT_EQ(absl::CivilSecond(2018, 3, 11, 3, 0, 0), trans.to);
+
+ t = absl::InfinitePast();
+ EXPECT_FALSE(tz.PrevTransition(t, &trans));
+
+ t = absl::InfiniteFuture();
+ EXPECT_TRUE(tz.PrevTransition(t, &trans));
+ // We have a transition but we don't know which one.
+}
+
} // namespace
diff --git a/absl/time/time_zone_test.cc b/absl/time/time_zone_test.cc
index 7138560a..43d91904 100644
--- a/absl/time/time_zone_test.cc
+++ b/absl/time/time_zone_test.cc
@@ -59,7 +59,7 @@ TEST(TimeZone, DefaultTimeZones) {
TEST(TimeZone, FixedTimeZone) {
const absl::TimeZone tz = absl::FixedTimeZone(123);
- const cctz::time_zone cz = cctz::fixed_time_zone(cctz::sys_seconds(123));
+ const cctz::time_zone cz = cctz::fixed_time_zone(cctz::seconds(123));
EXPECT_EQ(tz, absl::TimeZone(cz));
}