abseil-cpp

Commit Graph

Author	SHA1	Message	Date
Milad Fa	ae0f4c2660	Fix hashing on big endian platforms (#1028 ) Avoid using libstdc++'s implementation of std::hash<std::bitset> and std::hash<std::vector> on big endian platforms in the implementation of absl::Hash. This is a workaround for a buggy implementation that results in many collisions. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102531 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98731	3 years ago
Abseil Team	4167eab063	Export of internal Abseil changes -- 506fa3e10b3d8399ad937c32ecea26d1ad4e62bb by Abseil Team <absl-team@google.com>: Disable ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE when GCC < 8.2.0 is used with libc++ PiperOrigin-RevId: 399707056 -- 656b7c7cee87f46a4bc7953618796f82da08e62c by Derek Mauro <dmauro@google.com>: Remove the MSVC flag implementation from flag.h to help clarify that methods on absl::Flag<T> are not part of the public API PiperOrigin-RevId: 399584678 -- a92a9bc156303bc663b84c4b704891ec8f67e333 by Abseil Team <absl-team@google.com>: Get rid of MemcpyIfAllowed while continuing to suppress erroneous warnings PiperOrigin-RevId: 399468864 -- 5f9a66895f707ba001fb51b88c0c6025f8c872a3 by Abseil Team <absl-team@google.com>: Use feature testing to check for availability of invoke_result. Feature testing should be available by C++20, which removes invoke_result. https://en.cppreference.com/w/cpp/feature_test PiperOrigin-RevId: 399447373 -- 946c0a502b4499dbfcabf1ab93ddde0048288fb4 by CJ Johnson <johnsoncj@google.com>: Add rvalue-reference qualifier to the Commit method on ConstructionTransaction PiperOrigin-RevId: 399442206 -- 726a4d036eff49aeb6fd0ca2b1775699b6844395 by Greg Falcon <gfalcon@google.com>: Internal change PiperOrigin-RevId: 399441870 -- 1df6d3f659b88dbac13c3d8e13db23bb3844ece2 by Abseil Team <absl-team@google.com>: Clang-format whitespace changes PiperOrigin-RevId: 399281271 -- 4a828cde95a07421d699ebac775b37810624214f by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 399234071 -- e520c72b34ba2f98668c889139001f8276243d31 by Greg Falcon <gfalcon@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 399233662 GitOrigin-RevId: 506fa3e10b3d8399ad937c32ecea26d1ad4e62bb Change-Id: I92b9176d2387c08eb167f9268efa78b55b8e09c2	3 years ago
Abseil Team	a05366d851	Export of internal Abseil changes -- 04cb3b22497190170aa5b774e98080c5de2ba60b by Abseil Team <absl-team@google.com>: Alternative bit mixer for LowLevelHash on ARM LowLevelHash's bit-mixer is inefficient on ARM because it calculates a 128-bit product of two 64-bit numbers. On ARM, this requires a sequence of two instructions with a high combined latency and poor throughput. This change provides alternative bit-mixing code for ARM that uses only 64-bit arithmetic (multiplication, xor, and left-shifts) and speeds things up considerably. The bit-mixing code for ARM was inspired by by Woothash[1] and xxh3[1]. Once I landed on a sequence of operations that provided good mixing, I used a test harness to search for the combination of shift / rotate factors that provided the best mixing, as indicated by SMHasher hash quality tests. The new mixing code passes 13 out of 15 of the hash quality test suites in SMHasher, with the two failures being in the noise range: e.g. 1 collision vs. zero expected in a keyset of ~8m keys. [1]: https://github.com/tommyettinger/waterhash/blob/49f5cf0b63b9/woothash.h#L16-L20 [2]: https://github.com/Cyan4973/xxHash/blob/6853ddc36e46/xxhash.h#L3240-L3265 PiperOrigin-RevId: 391833008 -- 17a4de1f9d623155c75b19285d414cd55a487cd6 by Saleem Abdulrasool <abdulras@google.com>: debugging: add support for unwinding on RISCV Linux This adds partial support for unwinding the RISCV call stack. It is largely duplicated from the AArch64 support with alterations for the ELF RISCV psABI. This covers RISCV64 and RISCV32, though not the ILP32E calling convention. PiperOrigin-RevId: 391818522 -- 32c93e449327b2cea32b32f6365e84b420fe1ed3 by Gennadiy Rozental <rogeeff@google.com>: New storage for types smaller than 8 bytes. Also adding new read interface for types smaller than or rqual to 8 bytes to avoid passing the pointer. PiperOrigin-RevId: 391726822 -- e987ac08a7787801cbfc7d7c96649e97fa8cff1a by Abseil Team <absl-team@google.com>: Extern template `find_first_non_full` to reduce linkage size for TU with single not inlined function. PiperOrigin-RevId: 391718862 -- 73af9bfcb5bf045089133e18bbd20eb5bb699172 by Gennadiy Rozental <rogeeff@google.com>: Make most non-mutable most int128 methods and friend free functions constexpr. Some functions are implemented offline (at least in some configurations) and can't be made constexpr. Mutable methods can't be made constexpr until we drop c++11 support. Fixes #978 PiperOrigin-RevId: 391706535 GitOrigin-RevId: 04cb3b22497190170aa5b774e98080c5de2ba60b Change-Id: If051fad5ff004e2e82fa53618fc04a6fe3d2d4be	3 years ago
Abseil Team	8910297baf	Export of internal Abseil changes -- 3a9b4e8e5ecba532db5cc4ac12d12660307ce9fb by Derek Mauro <dmauro@google.com>: Use the Bazel @platforms repository for platform constraints Fixes #1000 PiperOrigin-RevId: 390644226 -- b34e4d2f8a86b54bd483ec4c9c3dd781ad2d8b68 by Abseil Team <absl-team@google.com>: debugging: add some handling for RISC-V The RISC-V architecture uses a downward growing stack and can host Linux using ELF files. Adjust a few sites accordingly to indicate how to handle the RISC-V architecture. PiperOrigin-RevId: 390631894 -- 5fa3a0961bf3dd0799c048956a0128f7b8113f1e by Samuel Benzaquen <sbenza@google.com>: Rename the buffer hash function to LowLevelHash. Although it started as wyhash, it will depart from it so it does not make sense to keep the name. PiperOrigin-RevId: 390483506 -- 2e7867a2301d58ad4cd5abcaa5fd6f0db973ae7b by Abseil Team <absl-team@google.com>: This is an internal change. PiperOrigin-RevId: 390349746 GitOrigin-RevId: 3a9b4e8e5ecba532db5cc4ac12d12660307ce9fb Change-Id: I322c3762552a2107e6c6b108c25c01e5efa8aecd	3 years ago
Abseil Team	58e042da92	Export of internal Abseil changes -- 1620e8ffaa93ef24510ca60c7fff2a07248ac9f6 by Abseil Team <absl-team@google.com>: Update comment. PiperOrigin-RevId: 382858259 -- 20db116f28469149d10e0f7f8b976cb903dd4879 by Gennadiy Rozental <rogeeff@google.com>: Add benchmark running on multiple flags. Update size_tester to include cost of absl::GetFlag call. Add size_tester invocation for bool flag. New benchmark better represent GetFlag usage. PiperOrigin-RevId: 382820341 -- 2e097ad3811c4e329f75b98877a5e74c1d3d84fd by Abseil Team <absl-team@google.com>: Avoid 64x64->128 multiplication in absl::Hash's mix on AArch64 On AArch64, calculating a 128-bit product is inefficient, because it requires a sequence of two instructions to calculate the upper and lower halves of the result. So calculate a 64-bit product instead. Making MultType 64-bits means the upper 32 bits of the result do not participate in shift/xor, but the add/multiply gives us sufficient mixing. PiperOrigin-RevId: 382625931 -- f3ae3f32cb53168c8dc91b766f2932dc87cec503 by Abseil Team <absl-team@google.com>: Remove homegrown Round implementation absl/time/duration.cc defined a Round implementation to accommodate old versions of MSVC that lacked std::round(long double). Abseil no longer supports those MSVCs, so we don’t need the homegrown implementation anymore. Remove it, and replace calls to it with std::rint. PiperOrigin-RevId: 382605191 -- a13631c91bf5478289e1a512ce215c85501a26f7 by Martijn Vels <mvels@google.com>: Move the Consume() conversion functions out of cord_rep_ring into cord_rep_consume. This makes these functions generic, so we can repurpose these for the new Btree conversion functions. PiperOrigin-RevId: 382594902 -- 7394c737500c2d8371fcf913b21ad1b321ba499d by Benjamin Barenblat <bbaren@google.com>: Remove homegrown Round implementation absl/time/duration.cc defined a Round implementation to accommodate old versions of MSVC that lacked std::round(long double). Abseil no longer supports those MSVCs, so we don’t need the homegrown implementation anymore. Remove it, and replace calls to it with std::rint. PiperOrigin-RevId: 382569900 -- d72a761f43dc5c9b9510c3a1363177ed26646b5d by Abseil Team <absl-team@google.com>: Prefer `getentropy` for Emscripten. It needs a different header, so I've separated it out from the GLIBC check above. PiperOrigin-RevId: 382332475 -- 74e261dbb467741b2ddd8b490e04c531fdd2f559 by Martijn Vels <mvels@google.com>: Add BTREE tag for CordRepNode implementing a Btree cord. This change only forward declared the CordRepBtree class (not implemented yet) and defines the enum value BTREE. While RING and BTREE should never co-exist, we define a new value for BTREE so as not to make transitioning between RING and BTREE harder than it needs to be. This changes shifts the FLAT value / computation from FLAT = 4 to FLAT =5 PiperOrigin-RevId: 382326710 GitOrigin-RevId: 1620e8ffaa93ef24510ca60c7fff2a07248ac9f6 Change-Id: Ia8f99dde3874808f56062bd37ab3e63764099734	3 years ago
Abseil Team	ce42de10fb	Export of internal Abseil changes -- 9fc37c11b9e46287acef00ee06ed9adcba54dd13 by Greg Falcon <gfalcon@google.com>: Rename absl::hash_internal::HashState to absl::hash_internal::MixingHashState. Before this change, we had two classes named HashState: absl::HashState, the public API used for type erasure, and absl::hash_internal::HashState, the internal concrete implementation ordinarily used. The internal class used to be named `CityHashState`, but we renamed it to `HashState` it when we changed underlying hash implementation to wyhash. This inadvertent naming conflict made the code much harder to read, and this change intends to undo that. PiperOrigin-RevId: 373481959 -- 4aec55ffddebd085c239352a2e20721091f719a1 by Greg Falcon <gfalcon@google.com>: Introduce absl::HashOf(), a convenience wrapper around absl::Hash that calculates hashes from the values of its arguments. PiperOrigin-RevId: 373461406 -- 86b5fd8db50bbc8bd0aa9258523527381fe0445d by Abseil Team <absl-team@google.com>: Improve speed of BlockingCounter by making its most common path lock free. With the new implementation, the fast path of BlockingCounter::DecrementCount() is only a fetch_sub operation. This is most times much more efficient than the previous implementation (full mutex lock/unlock). As a matter of fact, in most actual usecases in practice, the waiter thread is already waiting on the Wait() call when DecrementCount() is called, which makes Mutex::Unlock() take the slow path as there's a waiter thread that it might need to wake up. PiperOrigin-RevId: 373394164 -- 65c876be5eac0cd32583ff8535ede4109d39cf3f by Martijn Vels <mvels@google.com>: Move the 'sample copied cord' logic into MaybeTrackCord(), This changes move the logic for selecting if a cord should remain being sampled from Cord to CordzInfo::MaybeTrackCord, and updates the documentation for the latter method. PiperOrigin-RevId: 373363168 -- e84410bd0aada293a81dfb82656c952e209e21fb by Martijn Vels <mvels@google.com>: Add check for the first call to cordz_should_profile() for each thread. This prevents the first cord of a newly created thread to be always sampled, which is a 'bad' kind of determinism for sampling. PiperOrigin-RevId: 373229768 -- bf09c589dc099ac8f4af780bf7e609c53c27574c by Samuel Benzaquen <sbenza@google.com>: Refactor the Flags structure into an enum. This gives us more control over the representation and allows for easier merging during parsing. PiperOrigin-RevId: 373163038 -- b947b0c51083b7b6508284b5d31819596c91729e by Derek Mauro <dmauro@google.com>: Fixes warnings about shadowed variables Fixes #956 PiperOrigin-RevId: 373158133 GitOrigin-RevId: 9fc37c11b9e46287acef00ee06ed9adcba54dd13 Change-Id: I91f35699f9bf439d1a870c6493946a310afe088c	4 years ago
Abseil Team	2faed9dd2a	Export of internal Abseil changes -- 6cfac39ea1266f01f195de5eb4c9a6fc9ea9b20a by Matt Kulukundis <kfm@google.com>: Fix a typo PiperOrigin-RevId: 366174890 -- 6ee8c58647aef171d394e59fa06f9bf8cd0306ec by Derek Mauro <dmauro@google.com>: Adds `ABSL_ATTRIBUTE_LIFETIME_BOUND` and applies it to the `const std::string&` constructor of `absl::string_view`. Compilers that support this attribute will emit a warning if the parameter does not have sufficient lifetime. PiperOrigin-RevId: 366027738 -- b944427d96e4b436b8fa0fe396c2a1118dbbbd13 by Abseil Team <absl-team@google.com>: Calls to `ResetToEmpty()` from `ClearSlow` use ~3% of the time in assignment. However, `ClearSlow()` is only used in contexts where `data_` is immediately reassigned. Rename `ClearSlow()` into `UnrefTree()` and remove `data_` resetting. PiperOrigin-RevId: 365977213 -- 7428b3147a5672c8bb55649efa3a1cfe19b52a8b by Abseil Team <absl-team@google.com>: Fix CordRepRing diabolical growth The 'Mutable' function in CordRepRing was over-eager in doubling capacity, which lead to 'ludicrous' growth in the diabolical test case as added to cord_test. This CL fixes the doubling for growing shared reps, and tempers CordRepRing growth for non shared capacity to 1.5 instead of 2, which is more inline with a conservative growth we also have in tree cord. After this change, CordRepRing no longer swamps the heap into the shadow realm, and is in effect reducing the memory used compared to the tree implementation. With a diabolical 5000 bytes growth pattern: Tree cord: 1523520 bytes Ring cord: 274232 bytes PiperOrigin-RevId: 365915857 -- f24d4aee48b03c5a7980664df903f947cbb198e8 by Andy Getzendanner <durandal@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 365873932 GitOrigin-RevId: 6cfac39ea1266f01f195de5eb4c9a6fc9ea9b20a Change-Id: I9737aa215ac732c9785a1d0032c77aba62330f12	4 years ago
Abseil Team	9c6a50fdd8	Export of internal Abseil changes -- 4ff721439234e91caf6f7b772e5f554e7dd423c8 by Benjamin Barenblat <bbaren@google.com>: Remove endian-sensitivity from hash slow path Prior to this commit, the Abseil hash fast path was endian-agnostic, but the slow path assumed a little-endian platform. Change the slow path to be endian-correct, ensuring that values produced by the fast and slow paths are equal even on big-endian systems. PiperOrigin-RevId: 355424258 -- 7f4fe1aa4de46ad0a2ef19fa9c061fc12a7391ed by Abseil Team <absl-team@google.com>: Directly store CordzInfo in the InlineData data contents of InlineRep This greatly reduces the cost of coping and moving cords. Especially the move constructor and move assignment are now back to lean loads and stores without needing any CordzInfo lookups for tracked cords. PiperOrigin-RevId: 355409161 -- 3ca4ca84ed6d98f1e383ffd8d12c28876e905bb3 by Abseil Team <absl-team@google.com>: Add #include <unordered_map> PiperOrigin-RevId: 355386114 -- 30b0ffad0621971b3135148fcc9e183b0dd2a6bb by Abseil Team <absl-team@google.com>: Optimize Cord copy constructor This change avoids double stores of the Cord copy constructor from the zero init of the InlineData / InlineRep contents followed by the assignment and inlines the copy constructor. PiperOrigin-RevId: 355287939 -- 0c043fa7b6e41ca7cefc5edc1e17ad46223e4e77 by CJ Johnson <johnsoncj@google.com>: Now that the absl::Cleanup example returns absl::Status, since we decided on absl::FailedPreconditionError, the precondition should be a positive statement and then the check should be failure to adhere to that positive statement PiperOrigin-RevId: 355216923 -- 9ed922ca5d28fe8790ec6bc0837cf39fbcc92896 by Gennadiy Rozental <rogeeff@google.com>: Do not set mvsc linker flags for clang-cl (fixes #874) Import of https://github.com/abseil/abseil-cpp/pull/891 PiperOrigin-RevId: 355199380 GitOrigin-RevId: 4ff721439234e91caf6f7b772e5f554e7dd423c8 Change-Id: I3d9d2383549720d7a91f9108dfcd979ad6632fce	4 years ago
Abseil Team	20869f89ed	Export of internal Abseil changes -- cea62ebc5d31c62aabcb94c066d9be506f34baf6 by Abseil Team <absl-team@google.com>: Fix typo in `Cord::EndsWith()` docs PiperOrigin-RevId: 355023067 -- f89225a55476478ec167be50dea543f5414836f9 by Abseil Team <absl-team@google.com>: Add set_cordz_info() and get_cordz_info() methods to InlineData This change has preparations for future (optional) integration of CordzInfo sampling data into Cord's InlineData for non inlined cords. PiperOrigin-RevId: 354965340 -- 324057574aeb697bd3327cb905eb5bca16ade768 by Abseil Team <absl-team@google.com>: Fix two comment typos. PiperOrigin-RevId: 354952568 -- 5bb93ca3d57ead3633e1efde4aa28718987ef64f by CJ Johnson <johnsoncj@google.com>: Clarify doc comment for absl::Cleanup by using absl::Status return type and clarify the engaged state by surfacing the initial value in the public header. PiperOrigin-RevId: 354935253 -- ec95424594b24a1aec9bf7972b2355f37285506a by Abseil Team <absl-team@google.com>: Remove `preserve_most` attribute from CordRep::Destroy() PiperOrigin-RevId: 354921927 GitOrigin-RevId: cea62ebc5d31c62aabcb94c066d9be506f34baf6 Change-Id: Ibe1d66197db7ce9554594e07b1c6e7c6dea3c9da	4 years ago
Abseil Team	5d8fc91922	Export of internal Abseil changes -- fcedaa5714efab8738446fa21620b827a40a3458 by Derek Mauro <dmauro@google.com>: Uses Wyhash in the implementation of absl::Hash for hashing sequences of more than 16 bytes on some platforms. Due to the per-process randomization of the seed used by absl::Hash, users should not notice this change, other than possibly getting better performance. This change only affects platforms where absl::uint128 is implemented with an intrinsic (and where sizeof(size_t)==8) since Wyhash relies on fast 128-bit multiplication for speed. PiperOrigin-RevId: 343956735 -- 085e108c760084f19caa21dbeb2118de2be3f8f0 by Abseil Team <absl-team@google.com>: Internal change for cord ring PiperOrigin-RevId: 343919274 -- 4c333278ad14d6692f203074b902506008ad624a by Jorg Brown <jorg@google.com>: Minimize strings_internal::StringConstant further, by removing the need for the compiler to instantiate a compile-time class function. PiperOrigin-RevId: 343878568 -- 71c3c8c7b7821b67997e3d5345aaec67f93f266f by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 343838259 GitOrigin-RevId: fcedaa5714efab8738446fa21620b827a40a3458 Change-Id: Ifb91895a82d11e743acd42fe97ab7fb70712b7df	4 years ago
Abseil Team	4ae6730677	Export of internal Abseil changes -- 77e2a9c277721f23a8df983c1efc6ed97c167964 by Derek Mauro <dmauro@google.com>: Simplify an internal piece of CityHash to remove the conflicting definition of uint128 PiperOrigin-RevId: 342906008 -- 593dbb6d5fd32cc5d31e3ba1eda02e8ddeaeaaf6 by Gennadiy Rozental <rogeeff@google.com>: Skip retired flags in GetAllFlags output. This is a bug fix. We should not have released this interface producing retired flags. There should be no observable difference for the users who should not care about retired flags. PiperOrigin-RevId: 342889378 -- bb77e07abff4dbd0a9c97eb85ee85cb39b84d04a by Abseil Team <absl-team@google.com>: Extract `find_first_not_full` outside of the raw_hash_set. This function is used in the following scenarios: 0. [relatively hot] insert, when actual new element is added. 1. [relatively cold] resize (explicit or on capacity grow) 2. [relatively cold] copy constructor 3. [cold] rehash on insert/erase (aka cache) use cases Resize typically mitigated by `reserve` in performance critical cases. Rehashing happen relatively rare, when hash table become polluted with deleted slots. We keep `find_first_not_full` in header, so that compiler still can inline it, when necessary (most notably in insert use case). This reduce binary size since only one copy of this function will be present in the binary for all tables where the function is not inlined (at least in one case). PiperOrigin-RevId: 342736300 GitOrigin-RevId: 77e2a9c277721f23a8df983c1efc6ed97c167964 Change-Id: I3fe9d054c66049bb598ea35c45fc800b1cdaa9b6	4 years ago
Abseil Team	4b915e7092	Export of internal Abseil changes -- 77c85460dc3c46593b231c5161ac55273bb0c7ef by Abseil Team <absl-team@google.com>: Support int128 in SimpleAtoi. PiperOrigin-RevId: 337946262 -- 0be53049ccf8309650e4e22f23b290e5f75ee828 by Gennadiy Rozental <rogeeff@google.com>: Update build scripts to use --mount instead of --volume to mount the host data into a container. This is somewhat more verbose, but more readable and flexible. More importantly this is what docker documentation is recomending to use now. PiperOrigin-RevId: 337898761 -- 3bc877f1679fdf61ecbf4365287a0403cfc9b53e by Samuel Benzaquen <sbenza@google.com>: Add Cord constructor for constinit instances. PiperOrigin-RevId: 337871148 -- 8b87701892b9c325e78ad4e8e4f16b785a744622 by Chris Kennelly <ckennelly@google.com>: Use the address of kSeed, rather than its value. We initialize kSeed with &kSeed, so these are equivalent, but kSeed requires a load from memory while &kSeed can be formed as a RIP-relative lea. PiperOrigin-RevId: 337868415 GitOrigin-RevId: 77c85460dc3c46593b231c5161ac55273bb0c7ef Change-Id: I3d06c18a123f1be29dad5801e8625952dc41cd95	4 years ago
Abseil Team	4b2fbb4adb	Export of internal Abseil changes -- a5af5874c1c5cc02bd2a748d455321f82b6f2a93 by Andy Getzendanner <durandal@google.com>: fix compile fails with asan and -Wredundant-decls Import of https://github.com/abseil/abseil-cpp/pull/801 PiperOrigin-RevId: 336693223 -- ed9df42ab2b742386c6692c2bed015374c919d9c by Derek Mauro <dmauro@google.com>: Fix integer conversion warning Fixes #814 PiperOrigin-RevId: 336651814 -- 0ab4c23884e72dce17b67c1eb520f9dbb802565d by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 336585378 -- eba0e3dccd52a6e91bcff84075bef0affc650b74 by Matt Kulukundis <kfm@google.com>: Add bitset operations to Futex helper. PiperOrigin-RevId: 336409368 -- 8b0709a8b4500bf5f0af4b602d76a298d81645e8 by Abseil Team <absl-team@google.com>: Fix code indentation in a comment. PiperOrigin-RevId: 336368167 -- bc3961c87a7e7760c10319a5b0349c279f7ae3ad by Samuel Benzaquen <sbenza@google.com>: Improve performance of the registry: - Reduce contention - Reduce memory usage for each flag by `6sizeof(void)`. - Replace one immortal allocation per-flag with a single one for all the flags - Slightly improve single-threaded performance by avoiding the std::map indirections. PiperOrigin-RevId: 336365904 -- 264ad9f28f935aad8b6b1437f8bf804fa9104346 by Abseil Team <absl-team@google.com>: Fix typo in comment on absl::Condition. PiperOrigin-RevId: 336311680 -- b5b808a8c75ca0df7b09eff9a423ec171d80f771 by Derek Mauro <dmauro@google.com>: Add missing Apache license headers PiperOrigin-RevId: 336294980 -- 89446c3a4793df8b95060385cf3e219357c3db1d by Andy Soffer <asoffer@google.com>: Internal changes PiperOrigin-RevId: 336287465 -- 57c8be4e294881bc79a6a44b8e4bf7ecbb19b9b9 by Matt Kulukundis <kfm@google.com>: Extract Futex from an implementation detail of Wait to a private interface. PiperOrigin-RevId: 336123209 GitOrigin-RevId: a5af5874c1c5cc02bd2a748d455321f82b6f2a93 Change-Id: Ie5a0ebe28e571814e3e11d4c05ca308523ccf311	4 years ago
Abseil Team	768eb2ca28	Export of internal Abseil changes -- f012012ef78234a6a4585321b67d7b7c92ebc266 by Laramie Leavitt <lar@google.com>: Slight restructuring of absl/random/internal randen implementation. Convert round-keys.inc into randen_round_keys.cc file. Consistently use a 128-bit pointer type for internal method parameters. This allows simpler pointer arithmetic in C++ & permits removal of some constants and casts. Remove some redundancy in comments & constexpr variables. Specifically, all references to Randen algorithm parameters use RandenTraits; duplication in RandenSlow removed. PiperOrigin-RevId: 312190313 -- dc8b42e054046741e9ed65335bfdface997c6063 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 312167304 -- f13d248fafaf206492c1362c3574031aea3abaf7 by Matthew Brown <matthewbr@google.com>: Cleanup StrFormat extensions a little. PiperOrigin-RevId: 312166336 -- 9d9117589667afe2332bb7ad42bc967ca7c54502 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 312105213 -- 9a12b9b3aa0e59b8ee6cf9408ed0029045543a9b by Abseil Team <absl-team@google.com>: Complete IGNORE_TYPE macro renaming. PiperOrigin-RevId: 311999699 -- 64756f20d61021d999bd0d4c15e9ad3857382f57 by Gennadiy Rozental <rogeeff@google.com>: Switch to fixed bytes specific default value. This fixes the Abseil Flags for big endian platforms. PiperOrigin-RevId: 311844448 -- bdbe6b5b29791dbc3816ada1828458b3010ff1e9 by Laramie Leavitt <lar@google.com>: Change many distribution tests to use pcg_engine as a deterministic source of entropy. It's reasonable to test that the BitGen itself has good entropy, however when testing the cross product of all random distributions x all the architecture variations x all submitted changes results in a large number of tests. In order to account for these failures while still using good entropy requires that our allowed sigma need to account for all of these independent tests. Our current sigma values are too restrictive, and we see a lot of failures, so we have to either relax the sigma values or convert some of the statistical tests to use deterministic values. This changelist does the latter. PiperOrigin-RevId: 311840096 GitOrigin-RevId: f012012ef78234a6a4585321b67d7b7c92ebc266 Change-Id: Ic84886f38ff30d7d72c126e9b63c9a61eb729a1a	5 years ago

14 Commits (9b924cedb6127dfb8f5d504a419dead2899fa777)