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-rw-r--r--absl/time/internal/cctz/include/cctz/civil_time.h4
-rw-r--r--absl/time/internal/cctz/src/civil_time_test.cc2
-rw-r--r--absl/time/internal/cctz/src/time_zone_fixed.cc16
-rw-r--r--absl/time/internal/cctz/src/time_zone_info.cc3
-rw-r--r--absl/time/internal/cctz/src/time_zone_libc.cc95
-rw-r--r--absl/time/internal/cctz/src/zone_info_source.cc18
6 files changed, 76 insertions, 62 deletions
diff --git a/absl/time/internal/cctz/include/cctz/civil_time.h b/absl/time/internal/cctz/include/cctz/civil_time.h
index f844182b..aa578ee3 100644
--- a/absl/time/internal/cctz/include/cctz/civil_time.h
+++ b/absl/time/internal/cctz/include/cctz/civil_time.h
@@ -306,9 +306,9 @@ using detail::get_weekday;
//
// civil_day d = ...
// // Gets the following Thursday if d is not already Thursday
-// civil_day thurs1 = prev_weekday(d, weekday::thursday) + 7;
+// civil_day thurs1 = next_weekday(d - 1, weekday::thursday);
// // Gets the previous Thursday if d is not already Thursday
-// civil_day thurs2 = next_weekday(d, weekday::thursday) - 7;
+// civil_day thurs2 = prev_weekday(d + 1, weekday::thursday);
//
using detail::next_weekday;
using detail::prev_weekday;
diff --git a/absl/time/internal/cctz/src/civil_time_test.cc b/absl/time/internal/cctz/src/civil_time_test.cc
index dc7e5a1d..b1f46f12 100644
--- a/absl/time/internal/cctz/src/civil_time_test.cc
+++ b/absl/time/internal/cctz/src/civil_time_test.cc
@@ -1035,7 +1035,7 @@ TEST(CivilTime, LeapYears) {
TEST(CivilTime, FirstThursdayInMonth) {
const civil_day nov1(2014, 11, 1);
- const civil_day thursday = prev_weekday(nov1, weekday::thursday) + 7;
+ const civil_day thursday = next_weekday(nov1 - 1, weekday::thursday);
EXPECT_EQ("2014-11-06", Format(thursday));
// Bonus: Date of Thanksgiving in the United States
diff --git a/absl/time/internal/cctz/src/time_zone_fixed.cc b/absl/time/internal/cctz/src/time_zone_fixed.cc
index 81ece72b..b0d159a2 100644
--- a/absl/time/internal/cctz/src/time_zone_fixed.cc
+++ b/absl/time/internal/cctz/src/time_zone_fixed.cc
@@ -27,7 +27,7 @@ namespace cctz {
namespace {
// The prefix used for the internal names of fixed-offset zones.
-const char kFixedOffsetPrefix[] = "Fixed/UTC";
+const char kFixedZonePrefix[] = "Fixed/UTC";
const char kDigits[] = "0123456789";
@@ -55,11 +55,11 @@ bool FixedOffsetFromName(const std::string& name, seconds* offset) {
return true;
}
- const std::size_t prefix_len = sizeof(kFixedOffsetPrefix) - 1;
- const char* const ep = kFixedOffsetPrefix + prefix_len;
+ const std::size_t prefix_len = sizeof(kFixedZonePrefix) - 1;
+ const char* const ep = kFixedZonePrefix + prefix_len;
if (name.size() != prefix_len + 9) // <prefix>+99:99:99
return false;
- if (!std::equal(kFixedOffsetPrefix, ep, name.begin()))
+ if (!std::equal(kFixedZonePrefix, ep, name.begin()))
return false;
const char* np = name.data() + prefix_len;
if (np[0] != '+' && np[0] != '-')
@@ -102,9 +102,9 @@ std::string FixedOffsetToName(const seconds& offset) {
}
int hours = minutes / 60;
minutes %= 60;
- char buf[sizeof(kFixedOffsetPrefix) - 1 + sizeof("-24:00:00")];
- std::strcpy(buf, kFixedOffsetPrefix);
- char* ep = buf + sizeof(kFixedOffsetPrefix) - 1;
+ const std::size_t prefix_len = sizeof(kFixedZonePrefix) - 1;
+ char buf[prefix_len + sizeof("-24:00:00")];
+ char* ep = std::copy(kFixedZonePrefix, kFixedZonePrefix + prefix_len, buf);
*ep++ = sign;
ep = Format02d(ep, hours);
*ep++ = ':';
@@ -118,7 +118,7 @@ std::string FixedOffsetToName(const seconds& offset) {
std::string FixedOffsetToAbbr(const seconds& offset) {
std::string abbr = FixedOffsetToName(offset);
- const std::size_t prefix_len = sizeof(kFixedOffsetPrefix) - 1;
+ const std::size_t prefix_len = sizeof(kFixedZonePrefix) - 1;
if (abbr.size() == prefix_len + 9) { // <prefix>+99:99:99
abbr.erase(0, prefix_len); // +99:99:99
abbr.erase(6, 1); // +99:9999
diff --git a/absl/time/internal/cctz/src/time_zone_info.cc b/absl/time/internal/cctz/src/time_zone_info.cc
index 50f7de54..184bd434 100644
--- a/absl/time/internal/cctz/src/time_zone_info.cc
+++ b/absl/time/internal/cctz/src/time_zone_info.cc
@@ -682,7 +682,6 @@ 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"}) {
@@ -717,7 +716,7 @@ std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open(
}
}
}
-#endif // __ANDROID__
+
return nullptr;
}
diff --git a/absl/time/internal/cctz/src/time_zone_libc.cc b/absl/time/internal/cctz/src/time_zone_libc.cc
index 3ab1623c..6095e764 100644
--- a/absl/time/internal/cctz/src/time_zone_libc.cc
+++ b/absl/time/internal/cctz/src/time_zone_libc.cc
@@ -21,7 +21,6 @@
#include <chrono>
#include <ctime>
#include <limits>
-#include <tuple>
#include <utility>
#include "absl/time/internal/cctz/include/cctz/civil_time.h"
@@ -33,57 +32,75 @@ namespace cctz {
namespace {
-// .first is seconds east of UTC; .second is the time-zone abbreviation.
-using OffsetAbbr = std::pair<int, const char*>;
-
-// Defines a function that can be called as follows:
-//
-// std::tm tm = ...;
-// OffsetAbbr off_abbr = get_offset_abbr(tm);
-//
#if defined(_WIN32) || defined(_WIN64)
// Uses the globals: '_timezone', '_dstbias' and '_tzname'.
-OffsetAbbr get_offset_abbr(const std::tm& tm) {
+auto tm_gmtoff(const std::tm& tm) -> decltype(_timezone + _dstbias) {
const bool is_dst = tm.tm_isdst > 0;
- const int off = _timezone + (is_dst ? _dstbias : 0);
- const char* abbr = _tzname[is_dst];
- return {off, abbr};
+ return _timezone + (is_dst ? _dstbias : 0);
+}
+auto tm_zone(const std::tm& tm) -> decltype(_tzname[0]) {
+ const bool is_dst = tm.tm_isdst > 0;
+ return _tzname[is_dst];
}
#elif defined(__sun)
// Uses the globals: 'timezone', 'altzone' and 'tzname'.
-OffsetAbbr get_offset_abbr(const std::tm& tm) {
+auto tm_gmtoff(const std::tm& tm) -> decltype(timezone) {
const bool is_dst = tm.tm_isdst > 0;
- const int off = is_dst ? altzone : timezone;
- const char* abbr = tzname[is_dst];
- return {off, abbr};
+ return is_dst ? altzone : timezone;
+}
+auto tm_zone(const std::tm& tm) -> decltype(tzname[0]) {
+ const bool is_dst = tm.tm_isdst > 0;
+ return tzname[is_dst];
}
#elif defined(__native_client__) || defined(__myriad2__) || \
defined(__EMSCRIPTEN__)
// Uses the globals: 'timezone' and 'tzname'.
-OffsetAbbr get_offset_abbr(const std::tm& tm) {
+auto tm_gmtoff(const std::tm& tm) -> decltype(_timezone + 0) {
+ const bool is_dst = tm.tm_isdst > 0;
+ return _timezone + (is_dst ? 60 * 60 : 0);
+}
+auto tm_zone(const std::tm& tm) -> decltype(tzname[0]) {
const bool is_dst = tm.tm_isdst > 0;
- const int off = _timezone + (is_dst ? 60 * 60 : 0);
- const char* abbr = tzname[is_dst];
- return {off, abbr};
+ return tzname[is_dst];
+}
+#else
+// Adapt to different spellings of the struct std::tm extension fields.
+#if defined(tm_gmtoff)
+auto tm_gmtoff(const std::tm& tm) -> decltype(tm.tm_gmtoff) {
+ return tm.tm_gmtoff;
+}
+#elif defined(__tm_gmtoff)
+auto tm_gmtoff(const std::tm& tm) -> decltype(tm.__tm_gmtoff) {
+ return tm.__tm_gmtoff;
+}
+#else
+template <typename T>
+auto tm_gmtoff(const T& tm) -> decltype(tm.tm_gmtoff) {
+ return tm.tm_gmtoff;
+}
+template <typename T>
+auto tm_gmtoff(const T& tm) -> decltype(tm.__tm_gmtoff) {
+ return tm.__tm_gmtoff;
+}
+#endif // tm_gmtoff
+#if defined(tm_zone)
+auto tm_zone(const std::tm& tm) -> decltype(tm.tm_zone) {
+ return tm.tm_zone;
+}
+#elif defined(__tm_zone)
+auto tm_zone(const std::tm& tm) -> decltype(tm.__tm_zone) {
+ return tm.__tm_zone;
}
#else
-//
-// Returns an OffsetAbbr using std::tm fields with various spellings.
-//
-#if !defined(tm_gmtoff) && !defined(tm_zone)
template <typename T>
-OffsetAbbr get_offset_abbr(const T& tm, decltype(&T::tm_gmtoff) = nullptr,
- decltype(&T::tm_zone) = nullptr) {
- return {tm.tm_gmtoff, tm.tm_zone};
+auto tm_zone(const T& tm) -> decltype(tm.tm_zone) {
+ return tm.tm_zone;
}
-#endif // !defined(tm_gmtoff) && !defined(tm_zone)
-#if !defined(__tm_gmtoff) && !defined(__tm_zone)
template <typename T>
-OffsetAbbr get_offset_abbr(const T& tm, decltype(&T::__tm_gmtoff) = nullptr,
- decltype(&T::__tm_zone) = nullptr) {
- return {tm.__tm_gmtoff, tm.__tm_zone};
+auto tm_zone(const T& tm) -> decltype(tm.__tm_zone) {
+ return tm.__tm_zone;
}
-#endif // !defined(__tm_gmtoff) && !defined(__tm_zone)
+#endif // tm_zone
#endif
inline std::tm* gm_time(const std::time_t *timep, std::tm *result) {
@@ -126,7 +143,7 @@ bool make_time(const civil_second& cs, int is_dst, std::time_t* t, int* off) {
return false;
}
}
- *off = get_offset_abbr(tm).first;
+ *off = static_cast<int>(tm_gmtoff(tm));
return true;
}
@@ -137,7 +154,7 @@ std::time_t find_trans(std::time_t lo, std::time_t hi, int offset) {
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) {
+ if (tm_gmtoff(*tmp) == offset) {
hi = mid;
} else {
lo = mid;
@@ -147,7 +164,7 @@ std::time_t find_trans(std::time_t lo, std::time_t hi, int offset) {
// 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;
+ if (tm_gmtoff(*tmp) == offset) break;
}
}
return lo;
@@ -193,8 +210,8 @@ time_zone::absolute_lookup TimeZoneLibC::BreakTime(
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.offset = static_cast<int>(tm_gmtoff(*tmp));
+ al.abbr = local_ ? tm_zone(*tmp) : "UTC"; // as expected by cctz
al.is_dst = tmp->tm_isdst > 0;
return al;
}
diff --git a/absl/time/internal/cctz/src/zone_info_source.cc b/absl/time/internal/cctz/src/zone_info_source.cc
index 13248462..42f50c5e 100644
--- a/absl/time/internal/cctz/src/zone_info_source.cc
+++ b/absl/time/internal/cctz/src/zone_info_source.cc
@@ -46,7 +46,13 @@ std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource> DefaultFactory(
// A "weak" definition for cctz_extension::zone_info_source_factory.
// The user may override this with their own "strong" definition (see
// zone_info_source.h).
-#if defined(_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;
+#elif defined(_MSC_VER) && !defined(_LIBCPP_VERSION)
extern ZoneInfoSourceFactory zone_info_source_factory;
extern ZoneInfoSourceFactory default_factory;
ZoneInfoSourceFactory default_factory = DefaultFactory;
@@ -60,19 +66,11 @@ ZoneInfoSourceFactory default_factory = DefaultFactory;
"/alternatename:?zone_info_source_factory@cctz_extension@time_internal@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@5@@ZEA=?default_factory@cctz_extension@time_internal@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@5@@ZEA")
#else
#error Unsupported MSVC platform
-#endif
-#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;
+#endif // _M_<PLATFORM>
#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
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 09:50:52 +0000