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* Replace `testonly = 1` with `testonly = True` in abseil BUILD files.Gravatar Shahriar Rouf2024-01-31
| | | | | | | https://bazel.build/build/style-guide#other-conventions PiperOrigin-RevId: 603084345 Change-Id: Ibd7c9573d820f88059d12c46ff82d7d322d002ae
* Avoid extra `& msbs` on every iteration over the mask for GroupPortableImpl.Gravatar Abseil Team2024-01-31
| | | | | PiperOrigin-RevId: 602974812 Change-Id: Ic35b41e321b9456a8ddd83470ee2eb07c51e3180
* Missing parenthesis.Gravatar Abseil Team2024-01-30
| | | | | PiperOrigin-RevId: 602864815 Change-Id: I74db20c93f6a7d9046779677cb4a328dc54bae69
* Early return from destroy_slots for trivially destructible types in ↵Gravatar Abseil Team2024-01-30
| | | | | | | flat_hash_{*}. PiperOrigin-RevId: 602813933 Change-Id: I744fe438281755a141b2fd47e54ab9c6c0fad5a3
* Avoid export of testonly target absl::test_allocator in CMake buildsGravatar Derek Mauro2024-01-30
| | | | | | | Closes #1536 PiperOrigin-RevId: 602764437 Change-Id: Ia5c20a3874262a2ddb8797f608af17d7e86dd6d6
* Use absl::NoDestructor for cordz global queue.Gravatar Abseil Team2024-01-30
| | | | | | | Also updated the return value to reference to clarify non-nullability. PiperOrigin-RevId: 602730828 Change-Id: Ia36f7fde3cc87ac597ba4f194eebe9ebb90a1a09
* Add empty WORKSPACE.bzlmodGravatar Derek Mauro2024-01-29
| | | | | | | | | | | | When bzlmod is enabled and WORKSPACE.bzlmod exists, the content of WORKSPACE is ignored. This prevents bzlmod builds from unintentionally depending on the WORKSPACE file. This exposed some small problems with our clang-cl configuration, which are also fixed in this change. PiperOrigin-RevId: 602511311 Change-Id: I0ba411edde2df0e17f4eeede4117ddb6934dd8f8
* Introduce `RawHashSetLayout` helper class.Gravatar Abseil Team2024-01-29
| | | | | PiperOrigin-RevId: 602485199 Change-Id: I5cc10eb8dcfe5988cf939080a224522e02ad8607
* Fix a corner case in SpyHashState for exact boundaries.Gravatar Matt Kulukundis2024-01-29
| | | | | | | AbslHash allows for piecewise chunks to be streamed incrementally into hash states and requires them to hash identically to one giant stream. The exact size window for this is an internal details `PiecewiseChunkSize`. There was an off by one error in this code. Add tests and fix it. PiperOrigin-RevId: 602463183 Change-Id: I159bbb5e7e745f55b2fe6eaf0d2735bd0a08aca9
* Add nullability annotationsGravatar Dmitri Gribenko2024-01-25
| | | | | PiperOrigin-RevId: 601477629 Change-Id: I3b683d94192b04f233ce5ec636586ccb90d24602
* Use absl::NoDestructor for global HashtablezSampler.Gravatar Abseil Team2024-01-24
| | | | | PiperOrigin-RevId: 601156448 Change-Id: Id6d19bda7eb3acee11cfab3a95e611996d6ef4cc
* Always check if the new frame pointer is readable.Gravatar Abseil Team2024-01-23
| | | | | | | Terminate the stack trace if it isn't. PiperOrigin-RevId: 600839499 Change-Id: I5692fa6cb52c4c8061b4ac14d8fba70f7fbabc52
* PR #1604: Add privacy manifestGravatar Hannah Shi2024-01-22
| | | | | | | | | | | | | | | Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1604 Looks like abseil is not using any of the APIs listed in https://developer.apple.com/documentation/bundleresources/privacy_manifest_files/describing_use_of_required_reason_api?language=objc, so adding an empty manifest file. fixes #1602 Merge 79da4bd7b54949d5e01c04623842ea1d0d4fbe59 into f7d2b13ef2466a5a3b7bcc535c49d3962a5c89f9 Merging this change closes #1604 COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1604 from HannahShiSFB:privacy-manifests 79da4bd7b54949d5e01c04623842ea1d0d4fbe59 PiperOrigin-RevId: 600525731 Change-Id: I3fbc6dcc6e47032665a9fa72c000ae245a25dd52
* Remove code pieces for no longer supported GCC versions.Gravatar Abseil Team2024-01-22
| | | | | | | The minimum supported version today is GCC 7 (`__GNUC__ >= 7`). PiperOrigin-RevId: 600475215 Change-Id: I1aa46384f1e75f268649a48dbe2b42f3475bb07f
* Disable ABSL_ATTRIBUTE_TRIVIAL_ABI in open-source buildsGravatar Derek Mauro2024-01-22
| | | | | | | | | Since compiler support for this attribute differs, if for example system libraries compiled with GCC are mixed with libraries compiled with Clang, types will have different ideas about their ABI. PiperOrigin-RevId: 600467146 Change-Id: I5729e54d34176d019a2dee9afc36ed9da1da10fa
* Prevent brace initialization of AlphaNumGravatar Abseil Team2024-01-19
| | | | | | | | | This was not intended to be supported, and it has resulted in calls as `absl::StrCat({...})`, which are not supported and only work coincidentally for the first 4 arguments due to `absl::StrCat` having overloads that take `absl::AlphaNum` directly for those. The existing situation prevents modifying the implementations of such functions to alternatives that do not have such overloads for those arguments. PiperOrigin-RevId: 599872755 Change-Id: I02c90119b2b96a922cf7e3b5d5f02affe24a272d
* Remove code pieces for no longer supported MSVC versions.Gravatar Abseil Team2024-01-19
| | | | | | | The current support policy is `_MSC_VER >= 1920`. PiperOrigin-RevId: 599833619 Change-Id: I9cf7393a5b659d1680765e37e0328539ccb870fa
* Added benchmarks for smaller size copy constructors.Gravatar Abseil Team2024-01-18
| | | | | PiperOrigin-RevId: 599538858 Change-Id: I9e92f4c9cfef1bfe6f8f925efe0ede3f309b6bf4
* Migrate empty CrcCordState to absl::NoDestructor.Gravatar Abseil Team2024-01-18
| | | | | | | Note that this only changes how we allocate the empty state, and reference countings of `empty` stay the same. PiperOrigin-RevId: 599526339 Change-Id: I2c6aaf875c144c947e17fe8f69692b1195b55dd7
* Add protected copy ctor+assign to absl::LogSink, and clarify thread-safety ↵Gravatar Andy Getzendanner2024-01-17
| | | | | | | requirements to apply to the interface methods. PiperOrigin-RevId: 599266310 Change-Id: I3b5a91eb17b4b09feba5e048892875f3a747afb1
* Add a note about how to link absl::log_flags under CMake to workaroundGravatar Derek Mauro2024-01-16
| | | | | | | the lack of a feature equivalent to Bazel's alwayslink=True PiperOrigin-RevId: 598855446 Change-Id: I0bb3bc40005908106eb7a7252572e3af153a7f5c
* Move absl::Set[Global]VLogLevel() to //absl/log/globals.hGravatar Derek Mauro2024-01-13
| | | | | | | | For consistency, all global logging configurations lives in //absl/log/globals.h PiperOrigin-RevId: 598194040 Change-Id: I815b7d07f8fe06c70cef83bdf825c2f7ca504a2b
* Speed up `raw_hash_map::[]` with ABSL hardening enabled by unchecking ↵Gravatar Abseil Team2024-01-12
| | | | | | | dereference of iterator returned by `try_emplace`. PiperOrigin-RevId: 597920257 Change-Id: I1b2e8f10a2f1efa763a6f0760294beafdb6fd9c0
* Enable ABSL_BTREE_ENABLE_GENERATIONS and ABSL_SWISSTABLE_ENABLE_GENERATIONS ↵Gravatar Abseil Team2024-01-11
| | | | | | | | | | | | | | with ABSL_HAVE_HWADDRESS_SANITIZER. It will detect bugs similar to Asan. Also updated related tests to pass with HWASAN. They are still flaky because of nature of HWASAN algorithm, but test can be update to avoid flakiness, which I will do in followup patches. PiperOrigin-RevId: 597613798 Change-Id: Ic8af36a268ca041c002eb561b946aa2d9b93996a
* Move default case to statement outside switch block in log_severity.h.Gravatar Daniel Cheng2024-01-11
| | | | | | | | Some compilers warn if a switch block that already covers all enumeration values also has a default label. PiperOrigin-RevId: 597583941 Change-Id: Ib3eb08dca0a19105522c61e47944cfc75280c15e
* Automated Code ChangeGravatar Abseil Team2024-01-10
| | | | | PiperOrigin-RevId: 597297788 Change-Id: Idb4cd3f62a03204bcad423d9934963136c018996
* Re-add the internal file //absl/string/internal/has_absl_stringify.h to unblockGravatar Derek Mauro2024-01-09
| | | | | | | | | | | | | | | releasing Abseil and GoogleTest. GoogleTest referenced this internal file and this internal trait. Since simultaneous releases are not possible since once release must reference another, we will temporarily add this back. https://github.com/google/googletest/blob/v1.14.x/googletest/include/gtest/gtest-printers.h#L119 https://github.com/google/googletest/pull/4368#issuecomment-1717699895 https://github.com/google/googletest/pull/4368#issuecomment-1717699895 PiperOrigin-RevId: 597073935 Change-Id: I7c2697a212dc477fd25770777445c64cfee73745
* Update Windows and MacOS CI builds to Bazel 7.0.0Gravatar Derek Mauro2024-01-09
| | | | | | | | | | | This changes the way in which clang-cl is selected on Windows as it has changed: https://bazel.build/configure/windows#clang --features=external_include_paths has been removed from Windows builds since it appears cause build command errors currently PiperOrigin-RevId: 596965732 Change-Id: I95b636a9a4fdcc4172c3bb8c6cb28d5f7db592c9
* Extend BM_StrAppendInt to use log-uniform random numbers instead of constantsGravatar Abseil Team2024-01-05
| | | | | | | | | This follows Benford's law, which is likely also a much more accurate representation of real data than a constant. We also add benchmarks for different integer types. PiperOrigin-RevId: 596039508 Change-Id: I4862c7cfdbf5face18ae31cf0bd2fd54e47684b7
* Optimize integer-to-string conversionsGravatar Abseil Team2024-01-04
| | | | | | | | | | | | | | | | | | | | | | The updated code is designed to: - Be branch-predictor-friendly - Be cache-friendly - Minimize the lengths of critical paths - Minimize slow operations (particularly multiplications) - Minimize binary/codegen bloat The most notable performance trick here is perhaps the precomputation & caching of the number of digits, so that we can reuse/exploit it when writing the output. This precomputation of the exact length enables 2 further performance benefits: - It makes `StrCat` and `StrAppend` zero-copy when only integers are passed, by avoiding intermediate `AlphaNum` entirely in those cases. If needed in the future, we can probably also make many other mixtures of non-integer types zero-copy as well. - It avoids over-reservation of the string buffer, allowing for more strings to fit inside SSO, which will likely have further performance benefits. There is also a side benefit of preventing `FastIntToBuffer` from writing beyond the end of the buffer, which has caused buffer overflows in the past. The new code continues to use & extend some of the existing core tricks (such as the division-by-100 trick), as those are already efficient. PiperOrigin-RevId: 595785531 Change-Id: Id6920e7e038fec10b2c45f213de75dc7e2cbddd1
* Correct nullability annotations on MakeNanGravatar Abseil Team2024-01-04
| | | | | | | Neither GCC nor Clang's __builtin_nan(), nor glibc's nan(), accept null pointers. PiperOrigin-RevId: 595767225 Change-Id: I4cddd1cafd0c9e83a823ec68386f10ce077c6b4c
* Avoid a empty library build failure on Apple platformsGravatar Derek Mauro2024-01-03
| | | | | | | | | | | | | | | | | | | | | https://github.com/abseil/abseil-cpp/issues/1465 reports that some CMake builds on Apply platforms issue ``` warning: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: archive library: libabsl_bad_any_cast_impl.a the table of contents is empty (no object file members in the library define global symbols) ``` Our CMake build handles this problem for header-only libraries by not building a library at all. For some libraries, for example our polyfills, the library is only conditionally empty. In these libraries, I added a single char variable on Apple platforms as a workaround. I have been able to reproduce the warnings reported in https://github.com/abseil/abseil-cpp/issues/1465, but they don't fail the build for me. I don't see them any more after this change. PiperOrigin-RevId: 595480705 Change-Id: Ie48637e84ebae2f2aea4e2de83b146f30f6a76b9
* Speed up `raw_hash_set::contains()` when ABSL hardening is enabled by ↵Gravatar Abseil Team2024-01-03
| | | | | | | removing the iterator invalidation check from the comparison that contains performs. PiperOrigin-RevId: 595460301 Change-Id: I9a5d6c81385e38184f4848c58209adc5d32bb7be
* Remove workaround for older versions MSVC that did not supportGravatar Derek Mauro2024-01-02
| | | | | | | | constexpr Flag construction. These versions of MSVC are no longer supported. PiperOrigin-RevId: 595195773 Change-Id: Iaf2f01a2255fb24f3aadc26f09600543fffa9da5
* PR #1589: Use compare_exchange_weak in the loop in Mutex::ReaderLockGravatar AtariDreams2024-01-02
| | | | | | | | | | | | | Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1589 It makes sense because even if it fails spuriously, we can just try again since we have to check for other readers anyway. Merge 0b1780299b9e43205202d6b25f6e57759722d063 into 6a19ff47352a2112e953f4ab813d820e0ecfe1e3 Merging this change closes #1589 COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1589 from AtariDreams:atomics 0b1780299b9e43205202d6b25f6e57759722d063 PiperOrigin-RevId: 595149382 Change-Id: I24f678f6bf95c6a37b2ed541a2b6668a58a67702
* Add an IWYU pragma to vlog_is_on.hGravatar Derek Mauro2024-01-02
| | | | | PiperOrigin-RevId: 595114487 Change-Id: Ia8fc94e4feaf8da1185e7e93ba4250e61e690cfd
* [absl] Rename `absl::internal::identity` to `absl::internal::type_identity`Gravatar Lawrence Wolf-Sonkin2023-12-28
| | | | | | | | * Also does this for `absl::internal::identity_t` which is now `absl::internal::type_identity_t` * This is clearer naming as this is a backfill of `std::type_identity` (the identity type), and not `std::identity` (the identity function) PiperOrigin-RevId: 594316002 Change-Id: I5fb8cf7e3d07c1bc736cbecd202e7d556b6ea33e
* Add compile-checks to ensure the parameter to ↵Gravatar Abseil Team2023-12-28
| | | | | | | | | absl::numbers_internal::FastIntToBuffer isn't provably insufficient This performance-sensitive API is internal, and should not be used directly. Nevertheless, some do use it, so it's worth trying to block incorrect uses where we can. PiperOrigin-RevId: 594289730 Change-Id: Ib5df39b450ef2ceda795082cde10ec2ba2642172
* Migrate static objects to NoDestructor in tests, testing libraries and ↵Gravatar Abseil Team2023-12-26
| | | | | | | benchmarks. PiperOrigin-RevId: 593918110 Change-Id: Ide100c69b10e28011af17c7f82bb10eea072cad4
* Import of CCTZ from GitHub.Gravatar Abseil Team2023-12-26
| | | | | PiperOrigin-RevId: 593889663 Change-Id: I589cd18922172d8aca99ddcc0d6f08a013bed9b4
* Import of CCTZ from GitHub.Gravatar Abseil Team2023-12-26
| | | | | PiperOrigin-RevId: 593814844 Change-Id: If1967814b2b9273061b928bfee102faae1fad263
* Include `cstdint` where necessary.Gravatar Dmitri Gribenko2023-12-26
| | | | | PiperOrigin-RevId: 593780380 Change-Id: Id80217c63dd76bafbcfb79a7ee10807f1b771cb2
* Release a few bits and pieces of DFATAL that were left behind: flag parsing ↵Gravatar Andy Getzendanner2023-12-21
| | | | | | | & some tests. PiperOrigin-RevId: 592918704 Change-Id: Iacef0e069c012a04960211c032454244822f9634
* Add a container-based version of `std::sample()`Gravatar Eric Astor2023-12-21
| | | | | PiperOrigin-RevId: 592864147 Change-Id: I83179b0225aa446ae0b57b46b604af14f1fa14df
* Performance improvement for absl::AsciiStrToUpper() and absl::AsciiStrToLower()Gravatar Abseil Team2023-12-20
| | | | | PiperOrigin-RevId: 592664369 Change-Id: I7aa7b045c2b3c0f25cff7b82eb9d9cc13e9fc49f
* Added ByAsciiWhitespace to str_split library.Gravatar Abseil Team2023-12-20
| | | | | PiperOrigin-RevId: 592653487 Change-Id: Iddd2f484807cb02dd2ee8bba26c22d196be02c88
* AddressIsReadable: improve commentsGravatar Fangrui Song2023-12-20
| | | | | | | | | | | | | | | | | | | Linux kernel's rt_sigprocmask correctly handles an unaligned user address[1]. The original issue was for qemu-user, which seems long irrelevant. Tested locally on an AArch64 CPU and qemu-aarch64-static. The alignment operation actually serves another purpose: when addr resides in the last 7 bytes of a page (unaligned), check only the current page and not the next. Update the comment. [1]: kernel/signal.c `SYSCALL_DEFINE4(rt_sigprocmask` arch/arm64/include/asm/uaccess.h:raw_copy_from_user arch/arm64/lib/copy_template.S "alignment handled by the hardware" PiperOrigin-RevId: 592618320 Change-Id: Ifbd05aba42f46e36e710cca940570213036b3ce0
* Unify btree EmptyNode allocation code across compilers.Gravatar Abseil Team2023-12-20
| | | | | | | | | We currently have a workaround for MSVC, which has constexpr pointer arithmetic bugs. The bug seems to still exist and the existing code for non-MSVC compilers doesn't build. This alternative constexpr constructor avoids pointer arithmetic and seems to be working for all, including MSVC. PiperOrigin-RevId: 592586957 Change-Id: Ic585693c3a7abaab5fbbc0954b8ee924994f8dbf
* Create and destroy tables outside of the timer and in batch in Reserve ↵Gravatar Abseil Team2023-12-20
| | | | | | | benchmarks. PiperOrigin-RevId: 592483250 Change-Id: I55fa9982c4dbc723b30957cb31da95251e368707
* Fix typo: begnning -> beginningGravatar Abseil Team2023-12-19
| | | | | PiperOrigin-RevId: 592337948 Change-Id: I373943b8daf28781e063b302fc916ca5644e8fe1
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