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2c81c02d2b68303134e777f31921679ab87a2639 by Derek Mauro <dmauro@google.com>:
Use getentropy() to get seed material when using glibc >= 2.25
getentropy() uses the getrandom syscall on Linux to avoid file descriptors.
It is never interputed (EINTR) and uses the same source as /dev/urandom.
https://man7.org/linux/man-pages/man3/getentropy.3.html
getrandom has been in the Linux since kernel 3.17
When unavailable (ENOSYS), fallback to /dev/urandom.
PiperOrigin-RevId: 376962620
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81cd41372a04eda400a2e3be53c239c0dac6bdf3 by Abseil Team <absl-team@google.com>:
Make FunctionRef no longer have -Wdeprecated-copy warnings from Clang by
defaulting the copy constructor. This is needed because the assignment
operator is deleted.
Fixes#948
PiperOrigin-RevId: 376928548
GitOrigin-RevId: 2c81c02d2b68303134e777f31921679ab87a2639
Change-Id: I0abb18052ffff5dd1448f0b68edbb668045335f0
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b548087c24ae7c2c709e8040a118b5e312d18e2e by Derek Mauro <dmauro@google.com>:
Remove the static initialization of global variables used by absl::Mutex
as requested by Chromium
PiperOrigin-RevId: 317676541
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f198f5da1e966772efa978ba019bd23576899794 by Greg Miller <jgm@google.com>:
fix: work around gcc-4.8 bug in disjunction
See https://godbolt.org/z/i7-AmM for a repro of the bug.
I realize that Abseil no longer supports gcc 4.8 officially
(https://abseil.io/docs/cpp/platforms/platforms), but Cloud C++ still supports
gcc 4.8 officially, and so it would be nice to get this simple fix in.
fixes https://github.com/abseil/abseil-cpp/issues/718
PiperOrigin-RevId: 317484459
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ed233f646530c6c0948213b643cc6919db1bee90 by Chris Kennelly <ckennelly@google.com>:
Avoid determining the size of the duration unit at runtime.
PiperOrigin-RevId: 317376300
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73d4011c17fcf747a990176924a7adc69d443533 by Greg Falcon <gfalcon@google.com>:
Change spelling of internal detail from `Invoke`/`InvokeT` to `invoke`/`invoke_result_t`.
This matches the spelling of the C++17 standard library names that perform the same operations.
PiperOrigin-RevId: 317311527
GitOrigin-RevId: b548087c24ae7c2c709e8040a118b5e312d18e2e
Change-Id: I131809ff0b92cfdb0d96dc94e94d9c6f751cb0ac
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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