Commits · bc65499db4413658779cf40f1fb5373bb92b50d8 · open / abseil-cpp

20 Apr, 2023 1 commit
- Minor optimization in btree: avoid redundant stores to node->position when constructing nodes. · bc65499d
```
PiperOrigin-RevId: 525792213
Change-Id: I4386385e6e05d74a4ccc18cea505530e919f0e28
```
  Evan Brown committed Apr 20, 2023
  bc65499d Browse Files
19 Apr, 2023 1 commit
- Unify std type detection now that older compilers are no longer supported · e85868cb
```
PiperOrigin-RevId: 525462751
Change-Id: Ibd6202cb95e79a48a6b39ccc4b74ead04128eb91
```
  Derek Mauro committed Apr 19, 2023
  e85868cb Browse Files
18 Apr, 2023 3 commits
- Add ABSL_RAW_DLOG and ABSL_RAW_DCHECK macros · fb0debf5
```
PiperOrigin-RevId: 525241200
Change-Id: I8d1536cb813da8b80a978340343b0243a49928f7
```
  Martijn Vels committed Apr 18, 2023
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- Add configurability of the log Tag value on Android · 2d04ec1d
```
PiperOrigin-RevId: 525178448
Change-Id: I0f35a38f23316b25621148b7fe59becf72bafeff
```
  Abseil Team committed Apr 18, 2023
  2d04ec1d Browse Files
- Add an API to clear the saved LogBacktraceAt location, and call it when setting… · f3618360
```
Add an API to clear the saved LogBacktraceAt location, and call it when setting an empty or invalid flag value.

PiperOrigin-RevId: 525065479
Change-Id: I3c0822db8301e0999b0669394b415df82edd445f
```
  Andy Getzendanner committed Apr 18, 2023
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14 Apr, 2023 3 commits

Optional: Remove workaround for lack of support for inheriting constructors · 387e1bf5
```
PiperOrigin-RevId: 524368346
Change-Id: I68b57a1abc8d805aa5cb4b45c5d7449ade231579
```
Derek Mauro committed Apr 14, 2023
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Span: Remove MSVC 2015 workaround · 2ed3e75e
```
PiperOrigin-RevId: 524347923
Change-Id: I4538eb8d5d6e8befbeb8ab992b0ad44dd8f4f00c
```
Derek Mauro committed Apr 14, 2023
2ed3e75e Browse Files

Reland "Get rid of tail padding within `absl::Duration`. This reduces memory… · bce5bec5

Reland "Get rid of tail padding within `absl::Duration`. This reduces memory usage needs when storing duration in containers (e.g. `vector<absl::Duration>` uses 25% less memory), and allows classes with `absl::Duration` fields to fit other stuff in memory previously used by tail padding (e.g. `std::optional<absl::Duration>` is now 16 bytes instead of 24)."

PiperOrigin-RevId: 524256689
Change-Id: Ibf40d9e5411020179fa34c972349c7b58aa9d908

committed Apr 14, 2023

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13 Apr, 2023 2 commits
- Spell out the meaning of non-reentrant/non-recursive. · 124e4f4e
```
PiperOrigin-RevId: 524112966
Change-Id: I197f98f95b1c4de7f53295a6a01db9b0379b4f55
```
  Thomas Köppe committed Apr 13, 2023
  124e4f4e Browse Files
- Don't override clock_gettime in the KernelTimeout and Waiter · c5f310de
```
tests under sanitizers. The overrides break the sanitizers.

PiperOrigin-RevId: 524037272
Change-Id: I85b87d3870c488cb316505e94b394c6f98e9f60f
```
  Derek Mauro committed Apr 13, 2023
  c5f310de Browse Files
12 Apr, 2023 9 commits

Synchronization: Consolidate the logic for whether steady clocks are supported · c23acb9b
```
for relative timeouts

PiperOrigin-RevId: 523789416
Change-Id: Ide4cfdcae9ea7bffca3355c80ea9c8833a9536e6
```
Derek Mauro committed Apr 12, 2023
c23acb9b Browse Files
Set executable bit to the *.bat files · 32d314d0
```
PiperOrigin-RevId: 523745259
Change-Id: Ia2be4ee672a4c1b72c6ecc035ed9c2e401b56d1e
```
Abseil Team committed Apr 12, 2023
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In debug mode, detect cases of btree comparators that violate transitivity, i.e.… · 2126f023

In debug mode, detect cases of btree comparators that violate transitivity, i.e. comp(A,B) && comp(B,C) -> comp(A,C).

When inserting a new element, we verify that the key is ordered correctly with respect to all the other values on the node, which can be done in constant time.

PiperOrigin-RevId: 523729309
Change-Id: Idb5a5912a9aa5411d086cb9fa76791523046778a

committed Apr 12, 2023

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Replace absl::type_traits_internal::is_trivially_copyable with · cb204d6d
```
std::is_trivially_copyable

PiperOrigin-RevId: 523724345
Change-Id: Id68c79c3bbb253d892bdef4659ac8a926e023d12
```
Derek Mauro committed Apr 12, 2023
cb204d6d Browse Files

Name anonymous memory allocations on Linux. · 3a46229c

Use Linux's prctl(PR_SET_VMA) system call to name memory arenas being
allocated using mmap(MAP_ANONYMOUS).

This change allows Abseil's memory arena(s) to be distinguished from
other uses of anonymous memory within a process, which in turn helps
investigations into the memory usage of applications.

The change adds a new prctl() system call to the code paths that call
mmap(). This is not expected to add significant overhead to applications.

The call to prctl(PR_SET_VMA, ...) can fail if the Linux kernel in use was
not configured with the CONFIG_ANON_VMA_NAME kernel option.  This should
be OK since the naming memory regions is primarily a debugging aid.

PiperOrigin-RevId: 523687348
Change-Id: Ie404e5eeef0a6da53330b3a56149c4f3bc6bf5c7

committed Apr 12, 2023

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inlined_vector: fix incorrect restrictions on the copy constructor fast path. · 5ad663b7

This has nothing to do with copy assignment or with destruction.

PiperOrigin-RevId: 523576913
Change-Id: Iddb6ab73bcfd8b01a29880cdf4db4bc2b5aead8a

committed Apr 11, 2023

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inlined_vector: fix incorrect restrictions on the swap fast path. · 156b10f5

This has nothing to do with copy construction or copy assignment.

PiperOrigin-RevId: 523571907
Change-Id: I338b5a40616594406ca8c80b747540c8935798e9

committed Apr 11, 2023

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inlined_vector: fix incorrect restrictions on the move-assignment fast path. · 2e47068d

This has nothing to do with copy construction or copy assignment.

PiperOrigin-RevId: 523557887
Change-Id: I332d6ceaf738305157605f1271cb577a83d198c5

committed Apr 11, 2023

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inlined_vector: relax the requirements on the move-construction fast path. · dd89c56c

Don't require a trivial move constructor and trivial destructor. This excludes
types that have declared themselves trivially relocatable by another means, like
std::unique_ptr. Instead use "is trivially relocatable" directly, which includes
all previous types as well as those that have opted in.
PiperOrigin-RevId: 523557136
Change-Id: Icea2dbb8f36f99623308155f2e5b1edd8e5bd36b

committed Apr 11, 2023

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10 Apr, 2023 2 commits

Extend ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS to support HWASAN · 29273402
```
PiperOrigin-RevId: 523220096
Change-Id: Iaffea2c9c4d112839ca8c2c7f130f72c3d7cc35b
```
Abseil Team committed Apr 10, 2023
29273402 Browse Files

Add a pull request template · 3ac60094

This is to highlight contributing guidelines and in particular call
out that Googlers must send us Piper CLs.

PiperOrigin-RevId: 523127713
Change-Id: I38e219d811adc5f14c7aeaa952d5f25de75198f5

committed Apr 10, 2023

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08 Apr, 2023 1 commit

Synchronization: Support true relative timeouts using the POSIX · 1a72ea7b

proposed standard pthread_cond_clockwait() and sem_clockwait().
These are currently implemented in glibc >= 2.30.

These methods take a clock and use an absolute time with reference
to that clock, so KernelTimeout now can produce these values.

PiperOrigin-RevId: 522824226
Change-Id: Ife98713f6f95d800b1f8e52d5364a3dbebc4f8a6

committed Apr 08, 2023

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06 Apr, 2023 4 commits
- Document that wrapping an empty `std::function` creates a non-empty `AnyInvocable` · 42a3c030
```
PiperOrigin-RevId: 522411202
Change-Id: Ifc99f5f6a227efd697039344ea75f53c6f282e53
```
  Dino Radakovic committed Apr 06, 2023
  42a3c030 Browse Files
- Use stdout for help output even in case of errors. · e73b9139
```
PiperOrigin-RevId: 522393331
Change-Id: Ia5f4ad6a2d16c033ea97f3c7e27e8eb7ee429242
```
  Gennadiy Rozental committed Apr 06, 2023
  e73b9139 Browse Files
- Fix typo in comment · 0bc6509b
```
PiperOrigin-RevId: 522392902
Change-Id: I5764edbe85612e90d02caae49bbf629dcb8879e3
```
  Dino Radakovic committed Apr 06, 2023
  0bc6509b Browse Files
- Synchronization: Support true relative timeouts on Apple platforms · a880427b
```
using the non-portable pthread_cond_timedwait_relative_np()

PiperOrigin-RevId: 522340555
Change-Id: I08682f74d8d94965330f12274c7a92632b1a29f1
```
  Derek Mauro committed Apr 06, 2023
  a880427b Browse Files
05 Apr, 2023 1 commit
- Add commentary for universal time scale · d7228036
```
PiperOrigin-RevId: 521932692
Change-Id: If637de6501a4ac41f0078d581049d23aad3480a4
```
  Abseil Team committed Apr 04, 2023
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03 Apr, 2023 5 commits
- Raise the MSVC floor to MSVC 2019 (16.0) in accordance with · dc51d35f
```
https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md

PiperOrigin-RevId: 521573177
Change-Id: I1f12ddbd8516314ee2ed7f8ba6a6895b03c6c270
```
  Derek Mauro committed Apr 03, 2023
  dc51d35f Browse Files
- Add heterogeneous lookup support for wstring/u16string/u32string. · c4127a72
```
PiperOrigin-RevId: 521556211
Change-Id: I1e1812eb11bfc5772abbf38ce348580c3afa5612
```
  Abseil Team committed Apr 03, 2023
  c4127a72 Browse Files
- Remove ABSL_SKIP_TIME_TESTS_BROKEN_ON_MSVC_OPT. These tests · 88f0473a
```
were broken on MSVC 2017, but MSVC 2017 is no longer supported

PiperOrigin-RevId: 521527454
Change-Id: I7203708bdc9aa03c9764c9c36db7ce5777e43c3c
```
  Derek Mauro committed Apr 03, 2023
  88f0473a Browse Files
- Internal cleanup · 0244af22
```
PiperOrigin-RevId: 521525676
Change-Id: I40083f534c6904b4823138666deac18ffe6deab6
```
  Abseil Team committed Apr 03, 2023
  0244af22 Browse Files
- Release the batch files used to test Abseil with MSVC · 486ec29b
```
PiperOrigin-RevId: 521450545
Change-Id: Ia4fe02a57d23411f0a80443c0ad89dfaf4117a37
```
  Derek Mauro committed Apr 03, 2023
  486ec29b Browse Files
01 Apr, 2023 3 commits

Change OnlyLiteralZero to not trigger modernize-use-nullptr · e46a87a1
```
PiperOrigin-RevId: 521133781
Change-Id: I1334ea683bc01ef9b1b9800d6681e29dd2a1ec55
```
Abseil Team committed Apr 01, 2023
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inlined_vector: optimize the move-assignment fast path. · 5102fe16

We know that the elements are trivially destructible if this path is used, so
there is no need to call their destructors one by one.

PiperOrigin-RevId: 521088624
Change-Id: I3edff97a073770f99031eefa7a34968fad5d7880

committed Mar 31, 2023

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inlined_vector: stop sharing the memcpy-based move-assignment path. · ea980d19

The fact that this is called from paths where the element type may not have a
trivial destructor is preventing an optimization (see the TODO). Stop calling
from those paths so that the optimization can be made in an upcoming CL.

PiperOrigin-RevId: 521087730
Change-Id: Id2b66d8f36bb0d294784d0793fdd8f07e315739f

committed Mar 31, 2023

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31 Mar, 2023 3 commits

inlined_vector: remove excess restrictions on copy constructor fast path. · acfd3382

The copy constructor isn't doing or simulating copy assignment; nor is it
destroying anything. We don't need to require that those operations be trivial.

PiperOrigin-RevId: 521020499
Change-Id: I0f36a720384b333ea15e6c8275872fd4fd9a738f

committed Mar 31, 2023

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Add clang-cl build · 6a37c26a
```
PiperOrigin-RevId: 520955097
Change-Id: I50a19305aed2b60dea0293b1a2106673e4cb7756
```
Derek Mauro committed Mar 31, 2023
6a37c26a Browse Files
Add a clang-cl build · d6a7cba2
```
PiperOrigin-RevId: 520925224
Change-Id: I8b7eb8b4d4b99d72b860aec532516b428fb2be23
```
Derek Mauro committed Mar 31, 2023
d6a7cba2 Browse Files

30 Mar, 2023 2 commits

Clarify code comment to avoid confusion. · 0b6f0003
```
PiperOrigin-RevId: 520724148
Change-Id: Ia90c4a711649e89454bc2ca0a9d0d771d56e79c0
```
Abseil Team committed Mar 30, 2023
0b6f0003 Browse Files

Changes necessary to support clang-cl · d79361fa

This change fixes -Wimplicit-const-int-float-conversion warnings
by making the conversions explicit.

PiperOrigin-RevId: 520707623
Change-Id: Ib6917469120cd7458257195cbf39beb3fd397543

committed Mar 30, 2023

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