--
a9ea60e9c0ccd744b6f12fd021dbedfe826dfe84 by Matt Kulukundis <kfm@google.com>:
Add an internal hook to allow keeping flags in sync with global state.
Rollforward, except continue including hashtablez_flags.h in absl_flags.h so users don't break.
PiperOrigin-RevId: 412198044
--
183e5c440b68c797ce4a82102f94f41c97a14674 by Martijn Vels <mvels@google.com>:
Internal cleanups and changes
PiperOrigin-RevId: 412083793
--
3740faf7c5a2e1723e3c7e4d1b3f3db7cbec6e61 by Abseil Team <absl-team@google.com>:
Mark Cord::Clear() with the ABSL_ATTRIBUTE_REINITIALIZES attribute.
This prevents false positives in the clang-tidy check bugprone-use-after-move; it allows Clear() to be called on a moved-from Cord without any warnings, and the Cord will thereafter be regarded as initialized again.
PiperOrigin-RevId: 412082757
--
a730d3f4ba06b55ae50386920a0544592069ac01 by Abseil Team <absl-team@google.com>:
StrJoin: Support iterators that do not have an `operator->`
Allows using `StrJoin` with iterators that do not have an `operator->`.
The `operator->` requirement for input iterators was dropped in C++20.
PiperOrigin-RevId: 412066130
--
6773c0ced2caa6a7855898298faecc584f3997ec by Andy Soffer <asoffer@google.com>:
Rollback of internal hook for keeping flags in sync with global state.
PiperOrigin-RevId: 411895027
--
4e7016a2fb88ce97853ef85ad5b4f76998eacca1 by Matt Kulukundis <kfm@google.com>:
Add an internal hook to allow keeping flags in sync with global state.
PiperOrigin-RevId: 411867376
--
2a7d4056e467b6b5d8a7aa9398d6cb5454c10fc5 by Martijn Vels <mvels@google.com>:
Internal change
PiperOrigin-RevId: 411806932
GitOrigin-RevId: a9ea60e9c0ccd744b6f12fd021dbedfe826dfe84
Change-Id: Ib35bb7b40774979ed2ad205bbb1744b1085eae78
--
2130ba98c8359b08d97fb16d84dfd05687005dcf by Abseil Team <absl-team@google.com>:
Tweaking the documentation of c_all_of to state the effect more directly.
PiperOrigin-RevId: 410557900
--
4732289bf4b56123fed113e36be4710b55c6a6c7 by Greg Falcon <gfalcon@google.com>:
Improve the quality of absl::Hash<std::vector<bool>>.
This previously dispatched to std::hash<vector<bool>>, which suffers from trivial collisions on many platforms. (They often hash the internal words but no size info, so that, e.g., {1, 1} and {1, 1, 0} collide.)
Also extended the unit test to exercise this.
PiperOrigin-RevId: 410329943
--
1c5f3934230a7669f74c96b305251786a265e235 by Greg Falcon <gfalcon@google.com>:
Add broader testing of absl hash contracts in the hash unit test.
In particular, test that the hash erasure mechanism works.
PiperOrigin-RevId: 410312738
--
5e1923f527ed3d02f6752a5b38d5e1c17a4a146f by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 410290663
--
8c74bc962b3b98a5908017c345efc592393048ea by Martijn Vels <mvels@google.com>:
Add Cord::CreateFlat() function
PiperOrigin-RevId: 410260776
--
bd0de4e94c85620d3b8dd60fae367b730fc4cb34 by Evan Brown <ezb@google.com>:
Rename node_hash_policy to node_slot_policy.
Motivation: we can potentially reuse this code for node_btree_*.
PiperOrigin-RevId: 410082271
GitOrigin-RevId: 2130ba98c8359b08d97fb16d84dfd05687005dcf
Change-Id: Ie052084cf992dee250d8b2f388d39c4de0dcff40
--
355b8f7b0070b005d53d94ee4180e95559ba2c88 by Derek Mauro <dmauro@google.com>:
Documentation: don't define absl::Status::ok() in terms of itself
Fixes#1058
PiperOrigin-RevId: 410035651
--
31c512c834b3a8979297adc5006c3727a3c6554b by Evan Brown <ezb@google.com>:
Cleanup: move set_params/set_slot_policy into btree_set.h and move map_params into btree_map.h.
Also change some `sizeof(value_type)`s to `sizeof(slot_type)`s and update some comments/variable names referring to values to refer to slots as appropriate in btree.h.
Motivation: preliminary cleanup towards node_btree_*.
PiperOrigin-RevId: 409991342
--
3129ca320d61a82f1c9ee8c02a23d25024eea4ab by Abseil Team <absl-team@google.com>:
Use simpler implementation for AddressIsReadable.
In particular, current solution doesn't work on systems configured with large
pid_t space.
PiperOrigin-RevId: 409397716
--
f71067f7494b19ce4a2e1df730b934dc931c51b2 by Martijn Vels <mvels@google.com>:
Add Span dependency
PiperOrigin-RevId: 409198889
GitOrigin-RevId: 355b8f7b0070b005d53d94ee4180e95559ba2c88
Change-Id: I7f4df3ec7739fdfde61d8ba983f07a08f6f1c7d7
--
4324716dc5384f03dcd7e36e8cca0e944e4dac74 by Evan Brown <ezb@google.com>:
Clarify comments about API differences from std::{set,map} in btree headers.
We note that the most important API differences are mentioned in the next paragraph and that other API differences are minor. An example of another minor API difference is the note about std::launder in the comment for `extract`.
Motivation: readers shouldn't feel like they need to read the entire header file to understand why b-tree containers are not "drop-in replacements" for STL containers.
PiperOrigin-RevId: 408703780
--
7e8da4f14afd25d11713eee6b743ba31605332bf by Derek Mauro <dmauro@google.com>:
Remove the test for absl::base_internal::NominalCPUFrequency() from OSS code
This is an internal-only function that should never by called by OSS code.
By its nature fails on unsupported platforms.
Google code has tests for this function on supported internal platforms.
Fixes#1053
PiperOrigin-RevId: 408692861
--
37bad2e003b17e3f82d6fd5d90ae183553c018b0 by Abseil Team <absl-team@google.com>:
To avoid triggering -Wmissing-variable-declarations warnings, ABSL_FLAG now
declares the Flag before defining it.
PiperOrigin-RevId: 408673990
GitOrigin-RevId: 4324716dc5384f03dcd7e36e8cca0e944e4dac74
Change-Id: I8c8ea73c4a4e38729c5bfdfa3fefb5d593e0536c
--
83e4cdf03a4d702b30e69204060de09e462e23c6 by Greg Falcon <gfalcon@google.com>:
Revert the crc addition to RefcountAndFlags, and restore related comments to their original state.
In development, the implementation of SetExpectedCrc() changed, and there is no longer a need to track the CRC status in the refcount.
Since the distinction between IsOne() and IsMutable() is subtle *and unused*, removing it now can help avoid subtle bugs in the future. This distinction can always be added back later, if it proves necessary.
Keep the reserved bit for now; all it costs is one extra mask instruction in the refcount checks, and space for extra state in Cord is always hard to find.
PiperOrigin-RevId: 408647038
--
ee67585cf66954176615271f50f8b278119dd138 by Greg Falcon <gfalcon@google.com>:
Implement Cord::SetExpectedChecksum() and Cord::ExpectedChecksum().
SetExpectedChecksum() will store a uint32_t out-of-band alongside a Cord's data. This value persists through copies and assignments. Mutating operations on a Cord cause the value to be forgotten. ExpectedChecksum() retrieves the stored value, if present.
This API is intended for storing a CRC32C checksum alongside data, allowing checksums to be passed through dataflows and validated at the final step. However, this API is agnostic to the meaning of the stored value. No CRC32C validation is performed by these new APIs.
This implementation adds a new CordRep node, CordRepCrc. A CordRepCrc may (currently) only live at the top of a tree. This allows traversal logic to be agnostic to these nodes, instead putting the needed branches at the mutation level. This also implements the property requested from API review, that any mutation is guaranteed to permanently forget the stored CRC.
PiperOrigin-RevId: 408611221
--
a86f592402b37c854ebdc77d2b9b425451a7a675 by Martijn Vels <mvels@google.com>:
Move 'ExtractResult' into CordRep
The result of an extract operation is logically identical for any tree implementation, and having a single type makes 'tree independent' implementation in cord.cc more concise.
PiperOrigin-RevId: 408332408
--
baa7647e21db59a87f75af9cac62172ce38a0f71 by Abseil Team <absl-team@google.com>:
Replace usages of `assert` macros with `ABSL_HARDENING_ASSERT`.
PiperOrigin-RevId: 408272133
--
c7658133d8662c39fa5035fc93a364c7c3d327e0 by Martijn Vels <mvels@google.com>:
Add CordRepBtree::ExtractAppendBuffer
PiperOrigin-RevId: 407944179
--
5775100363b5890ebfe710fadebf040445eab991 by Martijn Vels <mvels@google.com>:
Add CordRepConcat::ExtractAppendBuffer
PiperOrigin-RevId: 407932968
--
9f520ba1600a93352c78f644a369c7c76195ee86 by Greg Falcon <gfalcon@google.com>:
Add cordz tracking for crc nodes.
This also adds a new kSetExpectedChecksum method to the list of tracked methods. This is presently unused but will be used soon.
PiperOrigin-RevId: 407884120
GitOrigin-RevId: 83e4cdf03a4d702b30e69204060de09e462e23c6
Change-Id: I134ace2d87215813eaa60a282996a33884676c06
--
9f6ef337f282272bc098330c9ccacd9d39155db4 by Abseil Team <absl-team@google.com>:
Make DestroyElements an empty function if the value types are trivially deconstructible.
PiperOrigin-RevId: 407345743
--
a639bbf6f22446d6ba3da9e2c205e26cda4bebc5 by Derek Mauro <dmauro@google.com>:
Add ctest --output-on-failure to the CMake install test
PiperOrigin-RevId: 407333671
--
54d0577fa6ba1159c6a86410ae185c52f4afaff6 by Derek Mauro <dmauro@google.com>:
Fix Android build of elf_mem_image.cc
PiperOrigin-RevId: 407331032
GitOrigin-RevId: 9f6ef337f282272bc098330c9ccacd9d39155db4
Change-Id: I7e13f01cd804aec50f280ac25934c9ec48ef3c5f
--
05a099a580753f8e96cee38572e94dcdc079361b by Abseil Team <absl-team@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 405966217
--
c6b81e9ebc183d8389f14ecd091c8bad08cfe0aa by Abseil Team <absl-team@google.com>:
Add `inline_element_size` to hashtablez (so that we can compute the weighted load factors properly e.g., in b/187896534).
PiperOrigin-RevId: 405917711
--
3e3673de4e54e4142c54b09e1644dfa3de4bb296 by Abseil Team <absl-team@google.com>:
align indent of code comment in mutex.h
PiperOrigin-RevId: 405871997
--
2248301a5b14f8d2be5b2e9088f3528a353ea491 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 405639236
--
bc7d3c56fdad3dde4b89324af142529f2afe5f1b by Abseil Team <absl-team@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 405508045
--
66472387276ef02505d99195747be862768bb35b by Laramie Leavitt <lar@google.com>:
Also use uint8_t golden values in randen_test.cc
This makes randen_test, randen_slow_test, and randen_hwaes_test essentially
identical, as is the intent.
PiperOrigin-RevId: 405484423
GitOrigin-RevId: 05a099a580753f8e96cee38572e94dcdc079361b
Change-Id: I3dd5b0cfdb98d6e1ab02266194ba67d15428c2f8
--
58affd6378c47993f5408f7b8a8863fa5bcc2c47 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 403120541
--
27dc5d5f87bca6254585cca69058c14e0a2f3ce6 by Chris Kennelly <ckennelly@google.com>:
Prefetch while hashing.
While we may not need to access the cacheline *ctrl_ is on once we've computed the hash, we can begin to resolve the TLB required for the hashtable's heap allocation simultaneously with computing the hash value for the key.
PiperOrigin-RevId: 402954725
GitOrigin-RevId: 58affd6378c47993f5408f7b8a8863fa5bcc2c47
Change-Id: Id04297de823ad5c5a867c46065fa3a9ef0ada3dd
--
17141711ee419daa597a9f31e73721f80143e55a by Gennadiy Rozental <rogeeff@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 401384949
--
ac48584a7b16e8a12e26d49deb6cddec584a20b5 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 401337785
--
8a51bb7c962845e0707240c5ba12c1b80f6fbbe9 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 401047691
--
8e18024510869247f3c04c7807c93709eca2322a by Chris Kennelly <ckennelly@google.com>:
Note that SpinLock does not guarantee priorities for wakeups.
PiperOrigin-RevId: 400999238
--
75bc09b5f95fbb74b74d14c370bfb80011e8fb7f by Derek Mauro <dmauro@google.com>:
Add visibility restrictions to some internal targets
PiperOrigin-RevId: 400718253
--
1de5061016bc42cd7be009c9725ed2343ce12e3d by Abseil Team <absl-team@google.com>:
Make it clear that operator<< can also be used in place of ToString when logging absl::Status.
PiperOrigin-RevId: 400248269
--
cda15d9dc6e5cd569de7e5e73f409b72a3caed51 by Abseil Team <absl-team@google.com>:
Minor cleanup
PiperOrigin-RevId: 400087535
--
b001375ec47da3a0434be9ca9a45c0df510e7dda by Abseil Team <absl-team@google.com>:
Move periodic_sampler from base/internal to profiling/internal
PiperOrigin-RevId: 400038533
--
e7e02e686abc3900e723080849a3607d190ef57f by Abseil Team <absl-team@google.com>:
Move exponential_biased from base/internal to profiling/internal
PiperOrigin-RevId: 400020329
GitOrigin-RevId: 17141711ee419daa597a9f31e73721f80143e55a
Change-Id: I10924df7e1cc198447813dbe97a374a5cef66b49
--
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
--
1801102e11205861bc063e067e9fd4754b625c5a by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 398562681
--
485008445725d4013f60f4b2876f84b6b47932ec by Jorg Brown <jorg@google.com>:
Replace calls to std::isinf with comparison against max().
PiperOrigin-RevId: 398534255
--
9b99d074d39ad677cf92f99549d22bb73f504f8f by Saleem Abdulrasool <abdulras@google.com>:
debugging: add support for non-glibc targets for debugging
This relaxes the ELF mem_image handling and subsequently enables the VDSO
support for non-glibc targets. The primary need for the restriction was the
use of the `__GLIBC_PREREQ` macro. If it is undefined, assume that the glibc
pre-requisite is unavailable. This allows building the debugging_internal
target on musl targets.
PiperOrigin-RevId: 398499050
--
3cc3630ef2226ae1981a944573f0f9c27a527ebf by Abseil Team <absl-team@google.com>:
Replace usages of `auto` with proper typedefs.
PiperOrigin-RevId: 398479551
GitOrigin-RevId: 1801102e11205861bc063e067e9fd4754b625c5a
Change-Id: Ib13e8612d1b263b9c1ae7f56a9f394b24c3add2e
--
336f161ad8cb2cc3e1a6bbcbbb8c5b692ee59789 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 398308807
--
80d512823d17561a45feca81f37713a91a175349 by Abseil Team <absl-team@google.com>:
Internal change.
PiperOrigin-RevId: 398257218
--
f1f9792000355eb1d0c11b17800048491662a218 by Abseil Team <absl-team@google.com>:
Fix documentation for btree_multi{map,set}::merge to match behavior for elements with equivalent keys.
PiperOrigin-RevId: 398071060
--
8a9a302aebf2419e83f0c7dc5a63c33d26b807a3 by James Y Knight <jyknight@google.com>:
Silence -Wunused-value warning newly emitted by ToT Clang.
The value is being intentionally ignored, as the purpose of the call is only to eliminate this overload via SFINAE when `GenT{}` is not constant evaluable.
PiperOrigin-RevId: 397861294
GitOrigin-RevId: 336f161ad8cb2cc3e1a6bbcbbb8c5b692ee59789
Change-Id: I946e1d22619f92ce6a424c8c13a20a50b39ed463
--
d56207f5535c3aad1624e33d20777ea6e66f51a7 by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 397830482
--
7f7ff3e88e0d3cd61d63da477b2a08e61a1aeea2 by Evan Brown <ezb@google.com>:
Update implementation details comment in raw_hash_set to include information about the heap allocation's layout.
PiperOrigin-RevId: 397786239
--
fde783b12a79ae8d587d1027bc8736dff6844897 by Abseil Team <absl-team@google.com>:
Add comments on #endif to make nesting clearer
PiperOrigin-RevId: 397684219
GitOrigin-RevId: d56207f5535c3aad1624e33d20777ea6e66f51a7
Change-Id: I43dc2b5c982f1ef2b21f82b6133c49c428baf223
--
3794fe8db7a8e5a17945a8d6e198cde1db1fed7d by Chris Kennelly <ckennelly@google.com>:
Record maximum reserve or rehash argument in hashtable statistics.
This makes it possible to identify containers that are large because of reserve
calls or ones that could have an opportunity for more precise capacity sizing.
PiperOrigin-RevId: 396851064
--
c3d247c08acfd45d8e19cfd8e6e841e16e38e23d by Abseil Team <absl-team@google.com>:
Remove extra semi-colon
PiperOrigin-RevId: 396823800
GitOrigin-RevId: 3794fe8db7a8e5a17945a8d6e198cde1db1fed7d
Change-Id: I9f26407c2dc6b3dff04f6f3e249571dd8ab288c3
--
f73e17cb24f7878933fc100bd9bfc39fce190b64 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 394306402
--
3d3eeffa4e37f63aa50fec1b90858043b40fe377 by Abseil Team <absl-team@google.com>:
Release a few more absl::Cord unit tests that were accidentally omitted from the OSS release before.
PiperOrigin-RevId: 394016464
--
8a77a8eb93d021aadd8fdf43e219bf35328001ad by CJ Johnson <johnsoncj@google.com>:
Fix typo in identifier
PiperOrigin-RevId: 394000560
--
d87206c7c8e045b03d74b91e47ef3db0eb47a17b by Derek Mauro <dmauro@google.com>:
Fix typo: RandenHwAes
PiperOrigin-RevId: 393879427
--
980a3402eea77b0c77fb20dd124203002ff791ba by Derek Mauro <dmauro@google.com>:
Adds macros `ABSL_LTS_RELEASE_VERSION` and `ABSL_LTS_RELEASE_PATCH_LEVEL`
to allow projects to detect if an LTS version is being used.
Fixes#1006
PiperOrigin-RevId: 393807178
--
aecc7ed34de718c64733dab76621eacb5af9af5f by CJ Johnson <johnsoncj@google.com>:
Change `alloc` to `allocator` to match the fact that other identifiers are full words
PiperOrigin-RevId: 393794869
--
ad754bbcf7b78f5d51ed5f39193ac3159429b2b4 by Derek Mauro <dmauro@google.com>:
Remove self-include of cord_rep_btree.h
PiperOrigin-RevId: 393792085
--
f8e937a0d8fe26400560754f3596e3c21bb6d0d7 by Abseil Team <absl-team@google.com>:
Fix trivial typo in comment.
PiperOrigin-RevId: 393770527
--
7a58ca5d708038d222c6a2b6ff5076b4ceffd370 by Tomas Dzetkulic <dzetkulic@google.com>:
Update Cord::AppendArray resize policy.
PiperOrigin-RevId: 393362184
--
316050d171190d9d6312cadf88b1cc2db2d1caa7 by Abseil Team <absl-team@google.com>:
Add a new top level profiling/ directory to the Abseil library
PiperOrigin-RevId: 393358109
--
0dbb8e10f7fa4a7ac74e12b178e936a67b266c51 by CJ Johnson <johnsoncj@google.com>:
Switch to the more common enable_if pattern of ` = 0` in InlinedVector
PiperOrigin-RevId: 393301549
--
136d3068ce33b50ac820e8bd01395a7164d5181f by Abseil Team <absl-team@google.com>:
Clean up typedefs in internal/inlined_vector.h
PiperOrigin-RevId: 393181754
GitOrigin-RevId: f73e17cb24f7878933fc100bd9bfc39fce190b64
Change-Id: I0c4cd4d71d97bd1bf651701b6302ea3d9ac59b66
--
5d05c54a619a969da5b4b7f66a2af2d969dc7920 by Abseil Team <absl-team@google.com>:
Save not needed copies of the predicate in raw_hash_set's EraseIf.
PiperOrigin-RevId: 392706073
--
61ee9b808cd3c81dd10a600c8de5428d6a43cfeb by Abseil Team <absl-team@google.com>:
Save unnecessary copies of the iterator in raw_hash_set's EraseIf.
PiperOrigin-RevId: 392668288
GitOrigin-RevId: 5d05c54a619a969da5b4b7f66a2af2d969dc7920
Change-Id: I180dab2706841ce56f27cf6eabdad1106ebdcf73
--
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
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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
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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
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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
--
84bcdcd9497d1ec989f50c8dee93f656507c7bd6 by Abseil Team <absl-team@google.com>:
Reduce length of the `flat_hash_map<std::string, V>` type name in order to reduce binary bloat.
PiperOrigin-RevId: 391560997
--
5f49bd435e066989851dc045c7786ef400413f66 by Greg Falcon <gfalcon@google.com>:
Claim a bit from the Cord refcount for future use.
Also rename the increasingly-inaccurately named "Refcount" class to "RefcountAndFlags".
In optimized builds, this adds an extra mask instruction to decrement and test operations, but no new branches. Future flags can be added at no extra cost. Each additional flag will of course reduce the range of our refcount, but even with the bit added, we still support refcounts of 500 million.
PiperOrigin-RevId: 391557567
GitOrigin-RevId: 84bcdcd9497d1ec989f50c8dee93f656507c7bd6
Change-Id: I051823bf5a9a42d4fa9200e39563ab585ecab331
--
228b5878d7a994656f383666cfaee34e33e0b09b by Abseil Team <absl-team@google.com>:
Add element_type typedef to match std::span<T>
PiperOrigin-RevId: 390186160
--
c91d96c88c60be793c525158f76dfcaa5e32d161 by Abseil Team <absl-team@google.com>:
Rollback change to only hide retired flags if human-readable output
is requested
PiperOrigin-RevId: 390183146
--
170192c10ef8d513de80f29298ce93eeccc3712c by Abseil Team <absl-team@google.com>:
Move alignas(16) before ABSL_CONST_INIT and ABSL_DLL.
PiperOrigin-RevId: 390182845
--
77a5ee5081c81cef625fac7bbcf993cc028b32ed by Evan Brown <ezb@google.com>:
Use simple SlotOffset and AllocSize logic instead of container_internal::Layout in order to save linker input size for non-opt and sanitizer builds.
In opt mode, all of this logic is inlined so we don't save linker input size in opt mode.
PiperOrigin-RevId: 389914594
GitOrigin-RevId: 228b5878d7a994656f383666cfaee34e33e0b09b
Change-Id: I3b904068687574931d8390071b322c0c3c083283
--
77cd6291781bc39e8472c706163d6951fe2ae573 by Derek Mauro <dmauro@google.com>:
absl::uint128: Use intrinsics for more operations when available
This change also inlines the division and modulus operators when
intrinsics are available for better code generation.
Fixes#987
PiperOrigin-RevId: 389895706
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fa23339584599e07ebcb4d0a857e2553b017757c by Abseil Team <absl-team@google.com>:
only hide retired flags if human-readable output is requested
PiperOrigin-RevId: 389835452
--
f1111f2b88359d4b253d4d81681c8a488458a36e by Martijn Vels <mvels@google.com>:
Add helpers IsFlat(), IsExternal(), etc to improve readability
PiperOrigin-RevId: 389779333
--
785b8712261e41695ebeeb64b4317f93b37adc11 by Martijn Vels <mvels@google.com>:
Split off 'concat' and 'btree' RepMemoryUsageLeaf and RepMemoryUsageDataEdge
PiperOrigin-RevId: 389701120
--
5264bffebffc2b377bf7e18f0ce69a3ed38c6629 by CJ Johnson <johnsoncj@google.com>:
Eagerly destroy `Callback` in `absl::Cleanup`
PiperOrigin-RevId: 389678813
--
a05312f0668458e97c50ca932c8f974c1508ebf2 by Abseil Team <absl-team@google.com>:
Have one instance of empty_group per program, rather than one per translation unit.
https://stackoverflow.com/questions/185624/static-variables-in-an-inlined-function
PiperOrigin-RevId: 389185845
GitOrigin-RevId: 77cd6291781bc39e8472c706163d6951fe2ae573
Change-Id: Iac8d9cb27707a9562c831c77a552d1fb4bb0405f
--
e1a0989213908927f05002ab7697955ad7dc5632 by Martijn Vels <mvels@google.com>:
Introduce CordRepBtreeReader
CordRepBtreeReader provides forward navigation on cord btrees with absolute positional (offset) context, iterating over btree data in absl::string_view chunks.
PiperOrigin-RevId: 387585161
--
206d298e2bccb998731995cb05717b31fa9d90ec by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 387577465
--
f07fafe8a400a4f5dfef186d1a3b61fb7f709fe5 by Abseil Team <absl-team@google.com>:
This change adds debug-build enforcement that the inputs to
absl::c_set_intersection are sorted, which is a prerequisite of
std::set_intersection and required for correct operation of the
algorithm.
PiperOrigin-RevId: 387446657
--
2ca15c6361bb758be7fb88cae82bf8489b4d3364 by Abseil Team <absl-team@google.com>:
Change BadStatusOrAccess::what() to contain status_.ToString()
This ensures that on uncaught exception propagation that would cause program termination, the message contains information on the error which caused the failure.
Lazy initialization of what_ is a value judgement: if most callers are expected to call status() not what(), lazy initialization is correct. If most callers are expected to call what(), it should be initialized on construction to avoid atomic operation overhead.
PiperOrigin-RevId: 387402243
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3e855084e104dc972a0c4385395e6d8e8465127f by Gennadiy Rozental <rogeeff@google.com>:
LSC: Standardize access to GoogleTest flags on GTEST_FLAG_GET/GTEST_FLAG_SET
This change is necessary to move Googletest flags out of the testing:: namespace without breaking code. These new macros will continue to be required for code that needs to work both inside Google's monorepo and outside in OSS, but can be used anywhere inside the monorepo.
PiperOrigin-RevId: 387396025
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1ccf5895a15059ef689af5c4817d7b84f73190be by Gennadiy Rozental <rogeeff@google.com>:
Import of CCTZ from GitHub.
PiperOrigin-RevId: 387388496
GitOrigin-RevId: e1a0989213908927f05002ab7697955ad7dc5632
Change-Id: I3606d9ce29d909a3555e662e9df564202cf5068d
--
69b5d0b2a5adb49a53e51f9da6848eaa484242fe by Derek Mauro <dmauro@google.com>:
Changes the absl::Duration factory functions to disallow types that
are convertible to int or double, instead requiring that the argument
itself is indeed an integer or a floating-point number. This will
prevent callers from passing arguments, such as std::atomic<T>.
This change is an API break. Information and a tool to fix issues
can be found at
https://abseil.io/docs/cpp/tools/upgrades/duration-conversions
PiperOrigin-RevId: 387153494
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786063e438ab6a55ac4baa88ad4d20a8293be52a by Evan Brown <ezb@google.com>:
Make ctrl_t be an enum class.
This adds type safety, and also when strict aliasing is enabled, the compiler will know that control bytes can't alias non-control bytes.
Also make H2() return h2_t.
PiperOrigin-RevId: 387120717
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7e537aabec1c255d6e7c9d21232c597c1c2077bf by Evan Brown <ezb@google.com>:
Add some missing `const` keywords to ctrl_t* function parameters.
PiperOrigin-RevId: 386976062
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da53ac6d91cabd951e81dd0a145e1e52b918955f by Martijn Vels <mvels@google.com>:
Change Seek and InitOffset to return nullptr instead of assert / fail.
This makes it consistent with the rest of the API (Next, Previous, Skip) and hardens it against invariants that are harder (or less likey) to be upheld correctly by the caller.
PiperOrigin-RevId: 386963283
--
a4d1faac020d5025edf53ce81808e5db68da7d89 by Abseil Team <absl-team@google.com>:
PC / Backtrace / Symbolization for Emscripten.
PiperOrigin-RevId: 386957724
--
97f2c47d83ba9d3ac89e1f55bd06897686ffd063 by Martijn Vels <mvels@google.com>:
Fix static casts ([-Wimplicit-int-conversion])
PiperOrigin-RevId: 386951646
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9530c795248543817cbc4013953baa09c35f5e1a by Abseil Team <absl-team@google.com>:
Fix incorrect header guard in cord_rep_btree_navigator.h
PiperOrigin-RevId: 386907904
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90ce5872406df2b7f4c428683741dc13a572267e by Abseil Team <absl-team@google.com>:
Small grammar fixes for some StatusCode descriptions.
PiperOrigin-RevId: 386906217
--
b30a2fd777f12a04a4d512f37a34614b0d05ce99 by Derek Mauro <dmauro@google.com>:
Skip length checking when constructing absl::string_view from std::string.
The length check causes unnecessary code bloat.
PiperOrigin-RevId: 386857974
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fa171536c359bfa2a1b80297e844519bb9ee7791 by Martijn Vels <mvels@google.com>:
Introduce CordRepBtreeNavigator
CordRepBtreeNavigator implements bi-directional navigation over all data edges stored inside a Cord Btree.
PiperOrigin-RevId: 386519102
GitOrigin-RevId: 69b5d0b2a5adb49a53e51f9da6848eaa484242fe
Change-Id: I1b35188d66133f8cb73d346bc5564aac4e0b3e80
--
50f4b71699a116d95b72e8cc4c0a98433fac51a0 by Evan Brown <ezb@google.com>:
Split reset_ctrl and set_ctrl out of raw_hash_set to avoid redundant memory accesses.
In the previous member functions, the compiler has to assume that `ctrl_` can alias `this` so it has to reload the other member variables unnecessarily.
Note: I tried adding __restrict__ to the ctrl arguments in the new functions, but it didn't result in further binary changes.
PiperOrigin-RevId: 386074009
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47dfd737cc484492f9af9452e3a49adf81fe2ad2 by Abseil Team <absl-team@google.com>:
rehash_and_grow_if_necessary in-place more aggressively.
It previously resized too eagerly, resulting in low load factors.
PiperOrigin-RevId: 386008094
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05321b4841ffe685813897a1ec86abc8fdf54093 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 385810140
GitOrigin-RevId: 50f4b71699a116d95b72e8cc4c0a98433fac51a0
Change-Id: I9c9571564adc1f9ccfa9b29d3aac238389397d1b
--
007ce045d5d38a727ededdb5bf06e64785fd73bd by Martijn Vels <mvels@google.com>:
Add `cord_enable_btree` feature flag (default false).
PiperOrigin-RevId: 383729939
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98e7dc6a0407b0fd7b8713d883cdb3a766e0583d by Benjamin Barenblat <bbaren@google.com>:
Eliminate some byte swapping from randen_slow
Stop swapping bytes when serializing randen_slow’s Vector128 into and
out of memory. Instead, simply index different bytes in the AES round
function. This requires byte swapping the te{0..3} lookup tables, but it
produces an 8% speedup on my Xeon W-2135.
PiperOrigin-RevId: 383689402
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180b6bf45049188840d439b16a28e6b968669340 by Evan Brown <ezb@google.com>:
Minor simplification in drop_deletes_without_resize() - save probe_offset outside the lambda.
Also, add some consts, avoid an auto, and use lambda capture by value instead of reference.
I realized that the compiler can already optimize this - https://godbolt.org/z/Wxd9c4TfK, but I think this way makes the code a bit clearer.
PiperOrigin-RevId: 383646658
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781706a974c4dc1c0abbb6b801fca0550229e883 by Martijn Vels <mvels@google.com>:
Change storage to contain 3 bytes.
As per the comments in the code, this allows us to utilize all available space in CordRep that may otherwise be 'lost' in padding in derived clases. For the upcoming CordrepBtree class, we want a strong guarantee on having a 64 bytes aligned implementation.
PiperOrigin-RevId: 383633963
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8fe22ecf92492fa6649938a2215934ebfe01c714 by Derek Mauro <dmauro@google.com>:
Remove reference to str_format_arg.h, which no longer exists
PiperOrigin-RevId: 383517865
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79397f3b18f18c1e2d7aea993b687329d626ce64 by Benjamin Barenblat <bbaren@google.com>:
Use absl::uint128 for AES random number generator
Replace randen’s internal 128-bit integer struct, u64x2, with
absl::uint128. This eliminates some code and improves support for
big-endian platforms.
PiperOrigin-RevId: 383475671
GitOrigin-RevId: 007ce045d5d38a727ededdb5bf06e64785fd73bd
Change-Id: Ia9d9c40de557221f1744fb0d6d4d6ca7ac569070
--
373171b46238585c818cec37af26959f5412f813 by Abseil Team <absl-team@google.com>:
Build with -Wl,-no-undefined.
PiperOrigin-RevId: 381276748
--
da32624792d2948fe83d0ce58794d505799ab5d0 by Benjamin Barenblat <bbaren@google.com>:
s/round/rint/ in exponential_biased
`rint` differs from `round` in that it uses the current FPU rounding
mode. It’s thus potentially faster, since it doesn’t have to save and
restore FPU state. It also is more reflective of developer intent –
most developers expect all FPU operations to use the current rounding
mode, and having exponential_biased follow that rule seems ideal.
PiperOrigin-RevId: 381268264
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8f860253a4283d2cc8230fe98d7cdf7bcb3e05f1 by Abseil Team <absl-team@google.com>:
Internal change.
PiperOrigin-RevId: 381264180
GitOrigin-RevId: 373171b46238585c818cec37af26959f5412f813
Change-Id: Iefe60b15c80318a7707e0c32159ac004bfa26d72
--
2684e80d877b688b8d9e0af1b7acddbadc973152 by Evan Brown <ezb@google.com>:
Add an insert codegen function for raw_hash_set_benchmark.
PiperOrigin-RevId: 381052237
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8394ef3071714a41484cb5b271cba0611d954a7a by Abseil Team <absl-team@google.com>:
Optimize raw_hash_set ctor for random-access iterators
PiperOrigin-RevId: 380832215
GitOrigin-RevId: 2684e80d877b688b8d9e0af1b7acddbadc973152
Change-Id: Icf7929fdfab50a1b26f3dc5505575363b4f5838d
--
f6d1ddef9a38e3fb8492181bf1a7a006b7f2145d by Abseil Team <absl-team@google.com>:
Update the implementation of `operator<<` in Status to use `ToString(StatusToStringMode::kWithEverything)`
PiperOrigin-RevId: 380740880
--
5f13b20c4b85c1c6e94b69c74f80f8f3f3941747 by Derek Mauro <dmauro@google.com>:
Update Docker images
This also disables the Clang/libstdc++/C++20 combo as it seems that
the latest libstdc++ is relying on C++20 Concepts to a greater extent
than Clang supports.
PiperOrigin-RevId: 380714572
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f8f4dee12cfd02559bf741ad6b06f10ac0c48c73 by Abseil Team <absl-team@google.com>:
Fix shadow member warnings in randen_hwaes.cc
These happen when attempting to use abseil in github.com/google/benchmark. The project sets -Wshadow.
The warning is due to the name of the Vector128 ctor parameter. Using v instead, which I see used elsewhere (e.g. line 290)
PiperOrigin-RevId: 380704197
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2e1a09e9cb1239485715acb4828d9b4799fcfbb5 by Tom Manshreck <shreck@google.com>:
Add more precise documentation for AbslParseFlag declarations in the Time API
PiperOrigin-RevId: 380649107
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153e5f7a960c03e4161c03737a0ff18ba377ff73 by Evan Brown <ezb@google.com>:
Make the number of control bytes a constant.
We use a constexpr function because we need to support C++11, which doesn't have inline variables.
The motivation is to avoid future bugs where the number changes and we forget to update all the places it's used.
This CL should be a no-op.
PiperOrigin-RevId: 380253975
GitOrigin-RevId: f6d1ddef9a38e3fb8492181bf1a7a006b7f2145d
Change-Id: Id584138f898bf3ebef95fabcf48e41098c4db954
--
b1fc72630aaa81c8395c3b22ba267d938fe29a2e by Derek Mauro <dmauro@google.com>:
Fix -Wdeprecated-copy warnings from Clang 13.
Example:
error: definition of implicit copy assignment operator for 'UDT' is deprecated because it has a user-declared copy constructor [-Werror,-Wdeprecated-copy]
PiperOrigin-RevId: 380058303
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0422744812b1a2010d9eea5b17fbe89f3441b66b by Evan Brown <ezb@google.com>:
Change the "full table!" asserts in raw_hash_set to use `<= capacity` instead of `< capacity`.
If we add support for non-power-of-two-minus-one capacities, this is the correct thing to assert. For example, consider: Group::kWidth = 8, capacity_ = 8, ctrl_ = {kEmpty, 1, 2, 3, 4, 5, 6, 7, kSentinel, kEmpty, 1, 2, 3, 4, 5, 6}. In this case, if we do an unsuccessful lookup with H2 mapping to slot 1, then the first Group will contain {1, 2, 3, 4, 5, 6, 7, kSentinel} so we need to continue to the second Group (at which point seq.index() == 8 == capacity_) to find a kEmpty.
Note: this is a no-op change for now since we never have `capacity % Group::kWidth == 0`.
PiperOrigin-RevId: 380033480
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40628c34d540356de65fabb16c1439c0ec7a0764 by Abseil Team <absl-team@google.com>:
Drop out-of-date documentation about `absl::FixedArray`'s allocator support
PiperOrigin-RevId: 379811653
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e7ad047863ae55c9b7aec0753cfc527a4ea614bc by Evan Brown <ezb@google.com>:
Fix a bug in ConvertDeletedToEmptyAndFullToDeleted in which we were copying 1 more cloned control byte than actually exists.
When alignof(slot_type)>1, this wouldn't cause a problem because the extra byte is padding.
Also change loop bounds to not rely on the fact that capacity_+1 is a multiple of Group::kWidth.
PiperOrigin-RevId: 379311830
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1a3ba500fb2c33205854eb9258cd6e0fb1061bca by Martijn Vels <mvels@google.com>:
Change Ring, EXTERNAL and FLAT tag values to be consecutive values
The purpose of this change is to have FLAT = EXTERNAL + 1. Especially in the ring and btree alternative code, there is a common check if a node is a 'plain' edge (EXTERNAL or FLAT), or 'something else'. This change can make that check a single branch, i.e., instead of 'tag == EXTERNAL || tag >= FLAT', we can simply check for 'tag >= EXTERNAL'. Likewise we have some cases where we check for RING, EXTERNAL or FLAT, so we align RING + 1 with EXTERNAL.
PiperOrigin-RevId: 379291576
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0c78e65ca4d85244b106c3f8e24cf268e09e72a3 by Benjamin Barenblat <bbaren@google.com>:
Round a double multiplication before casting it to integer
The code
static_cast<int>(x * y)
(for double x and y) performs a double multiplication into a temporary
that, by standard, may have excess precision. The subsequent cast to int
discards the excess precision. However, the cast may examine the excess
precision during conversion, producing surprising results like
static_cast<int>(1.7 * 10) == 16
on certain systems. Correct this case by explicitly rounding 1.7 * 10
before casting it.
PiperOrigin-RevId: 378922064
GitOrigin-RevId: b1fc72630aaa81c8395c3b22ba267d938fe29a2e
Change-Id: Ica708a006921118673e78d5fd2d61fe0fb0894d1
--
ca5ce10fa5286f2bfb51890a37b547308b8d6d93 by Benjamin Barenblat <bbaren@google.com>:
Skip floating-point edge-case tests when using an x87
32-bit Intel CPUs use 80-bit floats for intermediate values, which can
change the results of floating point computations from what we normally
expect. Identify tests that are sensitive to the x87, and skip them when
we’re on 32-bit Intel.
PiperOrigin-RevId: 378722613
--
e5798bb017854e7f3b6d8721fed7dd553642b83d by Abseil Team <absl-team@google.com>:
Build without -Wl,-no-undefined.
PiperOrigin-RevId: 378690619
--
3587685a2c932405e401546ec383abcfbf8495c8 by Derek Mauro <dmauro@google.com>:
Update CCTZ BUILD file.
PiperOrigin-RevId: 378688996
--
06c7841b2bf8851410b716823b7ff9b42d86085e by Derek Mauro <dmauro@google.com>:
Change the CMake install test to use installed version of GoogleTest
PiperOrigin-RevId: 378537383
--
eaa8122a7062c56bed80e806344cca0c8325bf6f by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 378525523
--
381f505cce894b8eec031a541855650c4aa46e64 by Abseil Team <absl-team@google.com>:
Mark btree_container::clear() with the ABSL_ATTRIBUTE_REINITIALIZES attribute.
This prevents false positives in the clang-tidy check bugprone-use-after-move;
it allows clear() to be called on a moved-from btree_container without any
warnings, and the btree_container will thereafter be regarded as initialized again.
PiperOrigin-RevId: 378472690
GitOrigin-RevId: ca5ce10fa5286f2bfb51890a37b547308b8d6d93
Change-Id: I4267246f418538c5baacb562d1a40213fb13f246
As of this change, you can use `-DABSL_USE_EXTERNAL_GOOGLETEST=ON -DABSL_FIND_GOOGLETEST=ON` to have Abseil use the standard CMake find_package(GTest) mechanism.
--
72ce5b636488f17753d110ec18f57132d6180db3 by Derek Mauro <dmauro@google.com>:
Update GoogleTest version used by Abseil
PiperOrigin-RevId: 378296419
--
1eaa36f65315a1cb95c95dfee0bc31307d280d18 by Abseil Team <absl-team@google.com>:
Define unary + operators for absl::int128 and absl::uint128.
These are rarely used but apparently missing.
PiperOrigin-RevId: 377975179
--
1a029d6ff8f9e21ddf0b89949be04c0a56661359 by Abseil Team <absl-team@google.com>:
Remove gratuitous reinterpret_cast.
PiperOrigin-RevId: 377894806
GitOrigin-RevId: 72ce5b636488f17753d110ec18f57132d6180db3
Change-Id: I8a06f69b3489c9aef8260fd271bde2a55f01807f
--
066144400e12616f6771e512427bcd98aa203455 by Abseil Team <absl-team@google.com>:
Internal comment cleanup.
PiperOrigin-RevId: 377368470
--
3ba56d263bd90a9797d12b5ce29edce3fa65917c by Abseil Team <absl-team@google.com>:
Add tests for hash table capacity being unchanged by insert.
PiperOrigin-RevId: 377303140
GitOrigin-RevId: 066144400e12616f6771e512427bcd98aa203455
Change-Id: I2edf14b412e45a2ad490dcf9f06e009c12a60e3e
--
4c6405d1be98fc669b5167970783da00c6a43b86 by Derek Mauro <dmauro@google.com>:
Turn off -Warray-bounds for GCC in internal/inlined_vector.h
GCC 11 appears to erroneously warn here
PiperOrigin-RevId: 374709739
--
be9909b010b3da5967ab0ff44a09be034a1fa82f by Derek Mauro <dmauro@google.com>:
Add non-templated operator new and new[] to ThrowingValue.
GCC 11 is confused and issues -Wmismatched-new-delete.
PiperOrigin-RevId: 374648084
--
a30a87bf1498aff26bcd751daec120d14a934d99 by Derek Mauro <dmauro@google.com>:
Simplify ThrowingAllocator::select_on_container_copy_construction
to workaround what may be a clang c++20 bug
PiperOrigin-RevId: 374630576
GitOrigin-RevId: 4c6405d1be98fc669b5167970783da00c6a43b86
Change-Id: I48f1091c4a0f262961d9059dac4e6b44a82ae91d
--
30af50146f07d7afdb196abf235f44ec44ea6409 by Derek Mauro <dmauro@google.com>:
Update Abseil dependency versions
PiperOrigin-RevId: 374415690
--
6a241e9ea8ee201789bb66aadf9e1ca9cc23c5dc by Derek Mauro <dmauro@google.com>:
Fix the install test project, which is doing a mixed-mode build.
This manifests in failure with GCC 11, which defaults to C++17
Also explicitly reference python3 in the test script.
python2 is being removed by some Linux distros.
PiperOrigin-RevId: 374278107
--
42f85122407e799183880e0b2e2a71f6d35ee003 by Evan Brown <ezb@google.com>:
Use `capacity + Group::kWidth` control bytes instead of `capacity + Group::kWidth + 1`.
We don't use the extra byte - we only need the first `capacity` ones that are valid, the one sentinel byte and then `Group::kWidth - 1` cloned control bytes. For example, in `EmptyGroup()`, where capacity is 0, we use `Group::kWidth` control bytes.
We need to update set_ctrl() to only mirror `Group::kWidth - 1` bytes instead of `Group::kWidth` bytes.
Note: this doesn't actually save memory unless `alignof(value_type)` is one.
Also add/update related comments.
PiperOrigin-RevId: 374198589
--
5dcd09b2221bf23add583541769b476dac54e112 by Evan Brown <ezb@google.com>:
Improve b-tree value_comp() support.
- Don't expose internal adapted comparator functionality.
- Support value_comp() for maps using function pointer comparators.
- For maps, make value_compare's constructor and the member comparator be protected - [reference](https://en.cppreference.com/w/cpp/container/map/value_compare).
PiperOrigin-RevId: 373832649
--
d75819786ff5a06e1ed0c5c1e80b3b95ac49c83b by Evan Brown <ezb@google.com>:
Don't export adapted comparator functionality in key_comp().
PiperOrigin-RevId: 373651039
GitOrigin-RevId: 30af50146f07d7afdb196abf235f44ec44ea6409
Change-Id: I260480b0923cefeba81c543e2b7c34cacaa7d7c7
--
5f3c139695d5c497ca030e95a607537a7be7caa7 by Benjamin Barenblat <bbaren@google.com>:
Don’t examine irrelevant destination buckets in DiscreteDistributionTest
Abseil generates discrete distributions using Walker’s aliasing
algorithm. This creates uniformly distributed buckets, each with a
probability of sending traffic to a different bucket. Abseil represents
a bucket as a pair
(probability of retaining traffic ×
alternate bucket if traffic is passed)
and a distribution as a vector of such pairs. For example, {(0.3, 1),
(1.0, 1)} represents a distribution with two buckets, the zeroth of
which passes 70% of its traffic to bucket 1 and the first of which holds
on to all its traffic.
This representation is not unique: When a bucket retains traffic with
probability 1, the alternate bucket is irrelevant. Continuing the
example above, {(0.3, 1), (1.0, 0)} _also_ represents a two-bucket
distribution where the zeroth bucket passes 70% of its traffic to the
first and the first hangs on to all traffic. Exactly what representation
Abseil generates for a given input is related to how much precision is
used in intermediate floating-point operations, which is an
architectural implementation detail. Remove sensitivity to that detail
by not examining the alternate bucket when the retention probability is
1.0.
PiperOrigin-RevId: 372993410
--
062ac80699f748831c09a061538abffec2cdea5c by Martijn Vels <mvels@google.com>:
Avoid alredy sampled cord remaining sampled if not picked or source is sampled
PiperOrigin-RevId: 372985990
--
a9f3537e1110b7bb6450fd72a03f0c5dc6b8c89b by Evan Brown <ezb@google.com>:
Add tests for function pointer comparators, comparators that have SFINAE-visible comparison operators that are unimplemented, and for implicit construction from unadapted comparators.
PiperOrigin-RevId: 372927616
GitOrigin-RevId: 5f3c139695d5c497ca030e95a607537a7be7caa7
Change-Id: I996a8452e7bd88f9dd2e59633b01bbc09f42620d
--
daf5a2b9ab3507ad5fb9aebe9165933f33098b83 by Abseil Team <absl-team@google.com>:
Absl flat containers reserve enough space even in the presence of tombstones.
PiperOrigin-RevId: 372339945
--
9a61504867ba0eccc5046d7333090fbe3439cdd9 by Abseil Team <absl-team@google.com>:
Add benchmark for BlockingCounter
PiperOrigin-RevId: 372246068
--
91ee87e6de09fc62970667ee52654c9dcf7c478d by Evan Brown <ezb@google.com>:
In absl::StrSplit, support btree_multimap, and other non-std::multimap-multimaps by supporting any map type that returns iterator from insert().
Also:
- Use emplace() instead of insert() when available, not just for std::(multi)map - we can potentially change some string copies to moves this way.
- We no longer need the Insert class so remove it.
PiperOrigin-RevId: 372209653
GitOrigin-RevId: daf5a2b9ab3507ad5fb9aebe9165933f33098b83
Change-Id: I83098fde4a722cd4b682f024d3bfa56c613f960c
--
f6fbb03bff276e72123e8590519079e87732ae62 by Abseil Team <absl-team@google.com>:
Replace static absl::Mutex with SpinLock in absl::Cords
to avoid static initializers by absl::Mutex destructors
PiperOrigin-RevId: 370694199
--
654b7d9edfdc24f226990b2b46cbf91451a1d92a by Martijn Vels <mvels@google.com>:
Implement global data for CordzInfo in an ODR hardened way
This change puts the global data into a global list structure, and stores a reference to the global list in the handle itself. This hardens the implementation against ODR violations where info pointers are crossing dynamic library boundaries which are privately loaded.
PiperOrigin-RevId: 370673045
--
712dba768e66ee2ba85d6010829c617cd2af6ba7 by Martijn Vels <mvels@google.com>:
Intrument Cord::operator= for Cordz
PiperOrigin-RevId: 370659149
--
c0b347a2289e151b72680269332e264b8fa989c0 by Matt Kulukundis <kfm@google.com>:
Fix test guards for ABSL_ATTRIBUTE_RETURNS_NONNULL
PiperOrigin-RevId: 370594807
--
c2bedaa3472ef223f907de2604f9b9b58852ec5f by Martijn Vels <mvels@google.com>:
Add new Cordz instrumentation on GetAppendRegion.
PiperOrigin-RevId: 370587761
--
84fbfcc852697d509f6094482b86e84743a6b331 by Martijn Vels <mvels@google.com>:
Add instrumentation on Cord::Apppend(string_view)
PiperOrigin-RevId: 370576590
--
9e077390b8ca2239e1cb7bfbe1d5a04f2fc11d30 by Abseil Team <absl-team@google.com>:
Google-internal changes only.
PiperOrigin-RevId: 370558424
--
fb53c149eb2364ea34e3a67235f873866618b8ac by Matt Kulukundis <kfm@google.com>:
Update config.h macros with a few useful helpers to simplify version checking
PiperOrigin-RevId: 370557684
--
abf8142e99b9ff7e15f6528a357f1005461950b0 by Martijn Vels <mvels@google.com>:
clang-format cord
PiperOrigin-RevId: 370549371
--
e555985eabe63fcf0e980e9c433dd84caffec191 by Martijn Vels <mvels@google.com>:
Add MaybeUntrackCord() function
This function is near identical to the old UntrackCord() but allows info to be null, moving the cord.is_profiled() branch into CordzInfo.
PiperOrigin-RevId: 370528447
--
3883538efe4601f7864bda70a50d868bb383c63b by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 370503186
--
a9514b65542fde1bc73584e6f3c1c4b3a05f215f by Derek Mauro <dmauro@google.com>:
Add -Winvalid-constexpr to warning options for LLVM
PiperOrigin-RevId: 370455171
--
d8a3966de2cf15a2dc28e17e49a3d27d205eca92 by Martijn Vels <mvels@google.com>:
Add naive UniqueGenerator<T, kMaxValues, ...> to avoid flakes from dup random values.
PiperOrigin-RevId: 370179772
--
46d0caa1a12b68a5998d4f919e20f0f83b9286f8 by Martijn Vels <mvels@google.com>:
Add new Cordz instrumentation on PrependTree.
PiperOrigin-RevId: 370138969
GitOrigin-RevId: f6fbb03bff276e72123e8590519079e87732ae62
Change-Id: Ifa4c00a5c7b01198ee367a3253bea6b66612135e
--
51798d2ac9c95ee8955955c5d8d78b4c9592ecf7 by Derek Mauro <dmauro@google.com>:
Correctly install pkgconfig files under CMAKE_INSTALL_LIBDIR
Fixes#931
PiperOrigin-RevId: 366816645
--
fbaad678b54dae70e4cd9f4442b4fef9efb71b30 by Abseil Team <absl-team@google.com>:
Add a kDefaultStatusToStringMode representing the default StatusToStringMode.
PiperOrigin-RevId: 366478305
--
25b4be6a591e8b25338a00be1273cd6cae6b0165 by Evan Brown <ezb@google.com>:
Fix a typo in a comment.
PiperOrigin-RevId: 366464483
--
6add48ed8f633c219f02c6ef8af876f8dbaa9955 by Abseil Team <absl-team@google.com>:
Update comment to mention absl::container_literal::Layout which is what is used instead of gtl::Layout.
PiperOrigin-RevId: 366452345
GitOrigin-RevId: 51798d2ac9c95ee8955955c5d8d78b4c9592ecf7
Change-Id: I8e68bc55d81445b2f6f707943fed9075cd402844
--
8e75347c10d85112296811be6ef35761744ad9bc by Derek Mauro <dmauro@google.com>:
Big update to LTS release process
* Add create_lts.py script to to the LTS modification
This is simpler than copybara since very few changes are needed
* Use the default installation paths instead of a versioned path.
If a versioned path is needed, this is easy to change on the commandline.
* Make the integration test use the LTS transformed version
* Test both static and dynamic linking (fixes pkg-config dynamic linking)
PiperOrigin-RevId: 363566934
--
e00e971a2de3138861f5e1900201c9cc7788f714 by Laramie Leavitt <lar@google.com>:
Add a non-compile test to absl::BitGenRef for temporaries.
PiperOrigin-RevId: 363437284
--
3685644ec115d99789de32aceb76c32a00756fea by Derek Mauro <dmauro@google.com>:
Make OSS code consistent with internal code by using the forward
declaration of absl::Status that contains ABSL_MUST_USE_RESULT.
PiperOrigin-RevId: 363426906
--
b85fec142c3aa3f632fa985f9f8f73a253819723 by Evan Brown <ezb@google.com>:
Move raw_hash_set::infoz_ into raw_hash_set::settings_. This reduces the size of raw_hash_sets by alignof(size_t) bytes when hashtablez is disabled.
PiperOrigin-RevId: 363034264
--
c6fde3b17e5845191eb8b2bfc1760c8bfb9573ff by Mark Barolak <mbar@google.com>:
Internal change
PiperOrigin-RevId: 362990378
--
81713cf964905b43d1cbe32ce5fed97539029625 by Abseil Team <absl-team@google.com>:
Fix typo in comment (execeptions -> exceptions).
PiperOrigin-RevId: 362946191
--
3ee92ca470feca44da417b03ee45a915c6eb5155 by Abseil Team <absl-team@google.com>:
Add absl::FindAndReportLeaks and routes it to the corresponding
__lsan_do_recoverable_leak_check.
PiperOrigin-RevId: 362622199
--
b95b7194b20e02c20d72289fbc79a0d35b82e256 by Abseil Team <absl-team@google.com>:
Add `kWithEverything` to StatusToStringMode
PiperOrigin-RevId: 362595218
--
0a960d96a0014eab7e1c55b479269450ed8e98d7 by Abseil Team <absl-team@google.com>:
Accept e.g. ".__uniq" as a valid clone name. Further, bring the implementation
on par with libiberty's demangler grammar.
Clang introduced option -funique-internal-linkage-names that adds the suffix
".__uniq.[0-9]+" to internal linkage functions to give them a globally unique
identifier. The suffix was designed to work with existing demanglers which do
recognize a "_" along with the alphanumeric string. This change enhances the
demangler to allow "_" with the alphanumeric string.
Please refer to libiberty's cp-demangle.c where function d_clone_suffix
implements the demangling of clone suffixes :
1. '_' is accepted as a valid character with the alphanumeric sequence.
2. The alphanumberic sequence is optional.
3. The digit sequence is optional.
PiperOrigin-RevId: 362557420
--
2ac5ea212c150afd2f58025a5cab8c45d16949c6 by Abseil Team <absl-team@google.com>:
Change variable name 'slots' to 'slot_count' to avoid name-clash with Qt builds.
PiperOrigin-RevId: 362556289
--
934f0f409c9c548716a46363d6e243406fad4028 by Mark Barolak <mbar@google.com>:
Clarify the comment on ABSL_CACHELINE_SIZE to indicate that the macro definition itself shouldn't change, but rather that call sites should change when possible.
This addresses the request for improved documentation in https://github.com/abseil/abseil-cpp/pull/842.
PiperOrigin-RevId: 362354288
GitOrigin-RevId: 8e75347c10d85112296811be6ef35761744ad9bc
Change-Id: I33ec8561d8d645c3353e9d2dd447501d0e1825a7
--
5ed5dc9e17c66c298ee31cefc941a46348d8ad34 by Abseil Team <absl-team@google.com>:
Fix typo.
PiperOrigin-RevId: 362040582
--
ac704b53a49becc42f77e4529d3952f8e7d18ce4 by Abseil Team <absl-team@google.com>:
Fix a typo in a comment.
PiperOrigin-RevId: 361576641
--
d20ccb27b7e9b53481e9192c1aae5202c06bfcb1 by Derek Mauro <dmauro@google.com>:
Remove the inline keyword from functions that aren't defined
in the header.
This may fix#910.
PiperOrigin-RevId: 361551300
--
aed9ae1dffa7b228dcb6ffbeb2fe06a13970c72b by Laramie Leavitt <lar@google.com>:
Propagate nice/strict/naggy state on absl::MockingBitGen.
Allowing NiceMocks reduces the log spam for un-mocked calls, and it enables nicer setup with ON_CALL, so it is desirable to support it in absl::MockingBitGen. Internally, gmock tracks object "strictness" levels using an internal API; in order to achieve the same results we detect when the MockingBitGen is wrapped in a Nice/Naggy/Strict and wrap the internal implementation MockFunction in the same type.
This is achieved by providing overloads to the Call() function, and passing the mock object type down into it's own RegisterMock call, where a compile-time check verifies the state and creates the appropriate mock function.
PiperOrigin-RevId: 361233484
--
96186023fabd13d01d32d60d9c7ac4ead1aeb989 by Abseil Team <absl-team@google.com>:
Ensure that trivial types are passed by value rather than reference
PiperOrigin-RevId: 361217450
--
e1135944835d27f77e8119b8166d8fb6aa25f906 by Evan Brown <ezb@google.com>:
Internal change.
PiperOrigin-RevId: 361215882
--
583fe6c94c1c2ef757ef6e78292a15fbe4030e35 by Evan Brown <ezb@google.com>:
Increase the minimum number of slots per node from 3 to 4. We also rename kNodeValues (and related names) to kNodeSlots to make it clear that they are about the number of slots per node rather than the number of values per node - kMinNodeValues keeps the same name because it's actually about the number of values rather than the number of slots.
Motivation: I think the expected number of values per node, assuming random insertion order, is the average of the maximum and minimum numbers of values per node (kNodeSlots and kMinNodeValues). For large and/or even kNodeSlots, this is ~75% of kNodeSlots, but for kNodeSlots=3, this is ~67% of kNodeSlots. kMinNodeValues (which corresponds to worst-case occupancy) is ~33% of kNodeSlots, when kNodeSlots=3, compared to 50% for even kNodeSlots. This results in higher memory overhead per value, and since this case (kNodeSlots=3) is used when values are large, it seems worth fixing.
PiperOrigin-RevId: 361171495
GitOrigin-RevId: 5ed5dc9e17c66c298ee31cefc941a46348d8ad34
Change-Id: I8e33b5df1f987a77112093821085c410185ab51a
--
e2de21d54c02b6419c57c0f4e2a16b608deca260 by Evan Brown <ezb@google.com>:
Remove the InsertEnd benchmark.
This benchmark has significantly different possible behaviors that can result in misleading metrics. Specifically, we can have a case where we are deallocating the last node in the b-tree in the erase and then allocating a new node in the insert call repeatedly, whereas normally, we end up just inserting/erasing a value from the last node. Also, the name of the benchmark is misleading because it involves an erase and an insert, but the name only mentions the insert.
PiperOrigin-RevId: 360930639
--
51f6bb97b9cbdb809c31b77e93ce080ca3cba9ea by Benjamin Barenblat <bbaren@google.com>:
Stop testing with double-double random variables
On POWER, long double is often represented as a pair of doubles added
together (double-double arithmetic). We’ve already special-cased
double-double arithmetic in a number of tests, but compiler
bugs [1, 2, 3] have now triggered both false positives and false
negatives, which suggests testing with double doubles is unlikely to
yield useful signal. Remove the special casing and detect if we’re on a
double-double system; if so, just don’t test long doubles.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99048
[2] https://bugs.llvm.org/show_bug.cgi?id=49131
[3] https://bugs.llvm.org/show_bug.cgi?id=49132
PiperOrigin-RevId: 360793161
--
07fb4d7932c2f5d711c480f759dacb0be60f975e by Abseil Team <absl-team@google.com>:
internal change
PiperOrigin-RevId: 360712825
GitOrigin-RevId: e2de21d54c02b6419c57c0f4e2a16b608deca260
Change-Id: I98389b5a8789dcc8f35abc00c767e909181665f0
--
a9eb3c976c6d8ef4fca3d416847f8fca4bd90dd7 by Derek Mauro <dmauro@google.com>:
Remove the deprecated container library, which doesn't do anything.
This will help prevent user confusion, as seen in #183.
PiperOrigin-RevId: 360172262
--
4f872f651e25a528bdc59ee4e24543fbbd358f00 by Abseil Team <absl-team@google.com>:
Remove unused nspace alias.
PiperOrigin-RevId: 359487559
--
43e877e464886cf9226012f5bb47910b8995e70f by Abseil Team <absl-team@google.com>:
Create a StatusToStringMode to control how the ToString behaves.
PiperOrigin-RevId: 359339603
--
0da1291569e167341613359846948c72c8a838e1 by Greg Falcon <gfalcon@google.com>:
Fix a bug in SimpleAtoi/SimpleAtof, which accepted a prefix of "+-" (e.g., "+-5" was parsed as 5.0).
This regression was introduced when we migrated these functions to use absl::from_chars.
PiperOrigin-RevId: 359135105
GitOrigin-RevId: a9eb3c976c6d8ef4fca3d416847f8fca4bd90dd7
Change-Id: I0e2072cad80651e473ba1d34b1fb3a033dfaba80
--
1a5831c2b4b85e0151b7952e47f4b80827937620 by Laramie Leavitt <lar@google.com>:
Implement FuzzingBitGen, an adapter which allows existing randomized tests which use absl::BitGenRef to easily integrate with fuzz testing.
I found myself implementing a similar option in our tensorstore project to fuzz test a storage layer and figured that it would be more useful as a common tool with defaults that take the non-random path.
This is similar to the FuzzedDataProvider mechanism which generates random values from a fuzz string, and is used to generate fuzz test inputs, and internally it uses FuzzedDataProvider.
The basic technique used here is to construct mocking lambdas for all of the absl mock distribution configurations, and forwarding the parameters to fuzzing-specific implementations that call into FuzzedDataProvider. The default paths for the distributions are either the bounds or a median value.
PiperOrigin-RevId: 358432715
--
e7968538c5ef5cd0b9822dbeac0f659b5e7d49b3 by Derek Mauro <dmauro@google.com>:
Give extern C symbols a unique name when the inline namespace
is given.
This partially addresses #851
PiperOrigin-RevId: 358403842
GitOrigin-RevId: 1a5831c2b4b85e0151b7952e47f4b80827937620
Change-Id: Id5ca0251498e390a8efa7210a17cc2cabb2c7dd8
--
f9476c95cf7625d7b0fc4661f253b0aac4341044 by Abseil Team <absl-team@google.com>:
Add a test to verify that the new checksum field in Hashtablez is calculated
PiperOrigin-RevId: 356744293
--
ff8a3612463000e8c3d451e50367a3c65cb6cf21 by Abseil Team <absl-team@google.com>:
Remove the implied support comment for port.h, attributes.h, and integral_types.h's C compatibility from the header documentations.
Abseil-cpp is a C++ library; this brings port.h, attributes.h, and integral_types.h, into our stance for the rest of Abseil (aka, no assurance of C compatibility)
There is no guarantee that future changes to port.h, attributes.h, and integral_types.h, and their dependencies, will remain compatible with C, even for macros and definitions that currently are.
PiperOrigin-RevId: 356727505
--
be62292016381deee628dbb3f36cb6009bcc0282 by Abseil Team <absl-team@google.com>:
internal change
PiperOrigin-RevId: 356608125
--
13b35f17171df3d6853ea7088797b3be611505fc by Evan Brown <ezb@google.com>:
Clarify the comments for CapacityToGrowth/GrowthToLowerboundCapacity methods to specify the intent that capacity should equal growth when `capacity+1 < kWidth`.
Also add testing for this behavior.
PiperOrigin-RevId: 356579041
GitOrigin-RevId: f9476c95cf7625d7b0fc4661f253b0aac4341044
Change-Id: Iadd094d109b4869998f2427319ef66d1cf1e8eff
Abseil Team
Milad Fa
Vertexwahn
Florin Crișan
Christian Fersch