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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
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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
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0acc8470116819a62fd5ebbc2c64fdd703c93331 by Abseil Team <absl-team@google.com>:
Add an attribute to HashtablezInfo which performs a bitwise XOR on all hashes. The purposes of this attribute is to identify if identical hash tables are being created. If we see a large number of identical tables, it's likely the code can be improved by using a common table as opposed to keep rebuilding the same one.
PiperOrigin-RevId: 356338043
GitOrigin-RevId: 0acc8470116819a62fd5ebbc2c64fdd703c93331
Change-Id: If7d0a96629144fb41e6bef1ec93345a22df40733
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0e6d5abe305df4e943e0bc0256c67afc00956691 by Abseil Team <absl-team@google.com>:
Ensure that Hashtablez does not pull in absl::Mutex dependency when turned off at compile time.
PiperOrigin-RevId: 331142625
GitOrigin-RevId: 0e6d5abe305df4e943e0bc0256c67afc00956691
Change-Id: I984d6d3436e4825a7b20758c45b3142c0f3bb45a
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23500704dd7c2642fad49f88c07ce41ebaab12e4 by Abseil Team <absl-team@google.com>:
Change fetch_add() to store(1 + load())
As there is only one concurrent writer to the Info struct, we can avoid using
the more expensive fetch_add() function.
PiperOrigin-RevId: 329523785
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79e5018dba2e117ad89b76367165a604b3f24045 by Abseil Team <absl-team@google.com>:
Record rehash count in hashtablez
This will help identify which containers could benefit from a reserve call.
PiperOrigin-RevId: 329510552
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e327e54b805d67556f934fa7f7dc2d4e72fa066a by Abseil Team <absl-team@google.com>:
Fix -Wsign-compare issues.
These lines could theoretically have overflowed in cases of very large stack
traces etc. Very unlikely, but this was causing warnings when built with
-Wsign-compare, which we intend to enable with Chromium.
In none of these three cases is it trivial to switch to a range-based for loop.
PiperOrigin-RevId: 329415195
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08aca2fc75e8b3ad1201849987b64148fe48f283 by Xiaoyi Zhang <zhangxy@google.com>:
Release absl::StatusOr.
PiperOrigin-RevId: 329353348
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bf4d2a7f8b089e2adf14d32b0e39de0a981005c3 by Xiaoyi Zhang <zhangxy@google.com>:
Internal change
PiperOrigin-RevId: 329337031
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42fa7d2fb993bbfc344954227cf1eeb801eca065 by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 329099807
GitOrigin-RevId: 23500704dd7c2642fad49f88c07ce41ebaab12e4
Change-Id: I6713e4ca3bb0ab2ced5e487827ae036ab8ac61f1
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9c9eb300c95024ea4242bbb4835595f555cb1eed by Derek Mauro <dmauro@google.com>:
Sync string_view comments from the internal copy
PiperOrigin-RevId: 328582796
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c0bc4e77a46889430a1a40d836a5ff426a4a5bc9 by Xiaoyi Zhang <zhangxy@google.com>:
Make `absl::allocator_traits` an alias to `std::allocator_traits` for C++17 or
above. `std::allocator_traits` should have all its members since C++17 so we
don't need a backport.
PiperOrigin-RevId: 328258154
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5599a3c0f2d865128057b5e267a397011cd032d0 by Derek Mauro <dmauro@google.com>:
Fix an #endif comment
Reported at https://groups.google.com/g/abseil-io/c/GRUdB0bBrG8/m/852HrgchCQAJ
PiperOrigin-RevId: 328247093
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abd7e98088267f436e6c10779e574153ece015be by Abseil Team <absl-team@google.com>:
Don't call win32 APIs for UWP builds
symbolize.cc is including symbolize_win32.inc for all Windows builds,
including UWP builds. However, UWP doesn't have access to win32 APIs, so
it should instead include symbolize_unimplemented.inc.
This allows the necessary functions to still exist and be called, but
the win32 calls are not made.
This is part of the effort to enable Abseil in ANGLE:
https://anglebug.com/4873
PiperOrigin-RevId: 328226766
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f622d3dfb804a6f427c1fd86ee69f47785b49483 by Greg Falcon <gfalcon@google.com>:
Remove incorrect claims of HASH_NAMESPACE support in Abseil hash.
The documentation presently claims that absl::Hash will look for legacy hashers (e.g, in the __gnu_cxx namespace) as controlled by the HASH_NAMESPACE preprocessor define, but this has never been true.
(Vestigial support for this appears in the form `ABSL_INTERNAL_LEGACY_HASH_NAMESPACE`, but this is not a supported extension point, as indicated by the use of `INTERNAL` in the name.)
PiperOrigin-RevId: 328154123
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32b40a25efe1f7f7da98ce8faf3482c825464ed4 by Abseil Team <absl-team@google.com>:
Switch ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED checks to defined().
PiperOrigin-RevId: 328151556
GitOrigin-RevId: 9c9eb300c95024ea4242bbb4835595f555cb1eed
Change-Id: Ib0686286f7889a976311e8cd2b35655765a8d033
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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
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dc8b42e054046741e9ed65335bfdface997c6063 by Abseil Team <absl-team@google.com>:
Internal change.
PiperOrigin-RevId: 312167304
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f13d248fafaf206492c1362c3574031aea3abaf7 by Matthew Brown <matthewbr@google.com>:
Cleanup StrFormat extensions a little.
PiperOrigin-RevId: 312166336
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9d9117589667afe2332bb7ad42bc967ca7c54502 by Derek Mauro <dmauro@google.com>:
Internal change
PiperOrigin-RevId: 312105213
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9a12b9b3aa0e59b8ee6cf9408ed0029045543a9b by Abseil Team <absl-team@google.com>:
Complete IGNORE_TYPE macro renaming.
PiperOrigin-RevId: 311999699
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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
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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
Abseil Team