to validate that the input was actually valid hexadecimal data.

Mark the version of absl::HexStringToBytes() that does not validate
the input as deprecated.

Fixes #141

PiperOrigin-RevId: 604495678
Change-Id: Iac3020c33c9dbc6d8e31a43b746783fb345edaa7

PiperOrigin-RevId: 604369517
Change-Id: I6024a8828563c5a2487ba85ede91a88d7059f9c8

PiperOrigin-RevId: 604094890
Change-Id: If5634a15c7ea7c8ef2cc9b6d09636ee7836946d2

PiperOrigin-RevId: 603816996
Change-Id: Ifc7dc6299e65043697b4a0c6e9e8eef869297ce3

PiperOrigin-RevId: 603784442
Change-Id: I3d57e5f438b276c984f5d5416889b19e7ddb501a

PiperOrigin-RevId: 603696164
Change-Id: I876ae0ead5964b626c285c60d9a4b2bbe62e113d

PiperOrigin-RevId: 603576688
Change-Id: I5e7868de7016d76fb7a44fea93be72ab90f239d3

CycleClock::Now utilizes ABSL_INTERNAL_CYCLECLOCK_SHIFT to discourage reliance
on the raw CPU cycle counter values. As a side effect, it discourages
strictly-increasing assumption. Apply the idea to discourage over-reliance on
the precision of absl::Now/absl::GetCurrentTimeNanos.

Programs relying on a very high precision often exhibit portability issues on
machines with a lower cycle counter precision, or worse, race conditions. For
example, Apple M1 emulated x86 RDTSC only guarantees weakly-increasing RDTSC
values.

x86 clock speed is usually measured in GHz and is still precise after we drop 8
least significant bits.

PiperOrigin-RevId: 603493500
Change-Id: Ib1b00075109283f5dbcb39a43fe0ab722351a1e2

There are three optimizations here:
1. Early exit in case all slots were destroyed. especially useful for empty tables.
2. MatchFull is used in order to iterate over all full slots.
3. Portable group is used for `MatchFull` in the case of small table.

PiperOrigin-RevId: 603434899
Change-Id: I40bc90d17331d579cfbb1b4e0693f0913e5c38e4

PiperOrigin-RevId: 603344396
Change-Id: I06721246bf205284843065687378c6d905cbf879

PiperOrigin-RevId: 603342563
Change-Id: I1cd80103377f457770d5178dad8b56ae459cbd55

PiperOrigin-RevId: 603148301
Change-Id: Ie2e5702995c9e1ef4d5aaab23bc89a1eb5007a86

https://bazel.build/build/style-guide#other-conventions

PiperOrigin-RevId: 603084345
Change-Id: Ibd7c9573d820f88059d12c46ff82d7d322d002ae

PiperOrigin-RevId: 602974812
Change-Id: Ic35b41e321b9456a8ddd83470ee2eb07c51e3180

PiperOrigin-RevId: 602864815
Change-Id: I74db20c93f6a7d9046779677cb4a328dc54bae69

PiperOrigin-RevId: 602813933
Change-Id: I744fe438281755a141b2fd47e54ab9c6c0fad5a3

Closes #1536

PiperOrigin-RevId: 602764437
Change-Id: Ia5c20a3874262a2ddb8797f608af17d7e86dd6d6

Also updated the return value to reference to clarify non-nullability.

PiperOrigin-RevId: 602730828
Change-Id: Ia36f7fde3cc87ac597ba4f194eebe9ebb90a1a09

When bzlmod is enabled and WORKSPACE.bzlmod exists, the content of
WORKSPACE is ignored. This prevents bzlmod builds from unintentionally
depending on the WORKSPACE file.

This exposed some small problems with our clang-cl configuration,
which are also fixed in this change.

PiperOrigin-RevId: 602511311
Change-Id: I0ba411edde2df0e17f4eeede4117ddb6934dd8f8

PiperOrigin-RevId: 602485199
Change-Id: I5cc10eb8dcfe5988cf939080a224522e02ad8607

AbslHash allows for piecewise chunks to be streamed incrementally into hash states and requires them to hash identically to one giant stream.  The exact size window for this is an internal details `PiecewiseChunkSize`.  There was an off by one error in this code.  Add tests and fix it.

PiperOrigin-RevId: 602463183
Change-Id: I159bbb5e7e745f55b2fe6eaf0d2735bd0a08aca9

PiperOrigin-RevId: 601477629
Change-Id: I3b683d94192b04f233ce5ec636586ccb90d24602

PiperOrigin-RevId: 601156448
Change-Id: Id6d19bda7eb3acee11cfab3a95e611996d6ef4cc

Terminate the stack trace if it isn't.

PiperOrigin-RevId: 600839499
Change-Id: I5692fa6cb52c4c8061b4ac14d8fba70f7fbabc52

Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1604

Looks like abseil is not using any of the APIs listed in https://developer.apple.com/documentation/bundleresources/privacy_manifest_files/describing_use_of_required_reason_api?language=objc, so adding an empty manifest file.

fixes #1602
Merge 79da4bd7b54949d5e01c04623842ea1d0d4fbe59 into f7d2b13e

Merging this change closes #1604

COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1604 from HannahShiSFB:privacy-manifests 79da4bd7b54949d5e01c04623842ea1d0d4fbe59
PiperOrigin-RevId: 600525731
Change-Id: I3fbc6dcc6e47032665a9fa72c000ae245a25dd52

The minimum supported version today is GCC 7 (`__GNUC__ >= 7`).

PiperOrigin-RevId: 600475215
Change-Id: I1aa46384f1e75f268649a48dbe2b42f3475bb07f

Since compiler support for this attribute differs, if for example
system libraries compiled with GCC are mixed with libraries compiled
with Clang, types will have different ideas about their ABI.

PiperOrigin-RevId: 600467146
Change-Id: I5729e54d34176d019a2dee9afc36ed9da1da10fa

This was not intended to be supported, and it has resulted in calls as `absl::StrCat({...})`, which are not supported and only work coincidentally for the first 4 arguments due to `absl::StrCat` having overloads that take `absl::AlphaNum` directly for those.

The existing situation prevents modifying the implementations of such functions to alternatives that do not have such overloads for those arguments.

PiperOrigin-RevId: 599872755
Change-Id: I02c90119b2b96a922cf7e3b5d5f02affe24a272d

The current support policy is `_MSC_VER >= 1920`.

PiperOrigin-RevId: 599833619
Change-Id: I9cf7393a5b659d1680765e37e0328539ccb870fa

PiperOrigin-RevId: 599538858
Change-Id: I9e92f4c9cfef1bfe6f8f925efe0ede3f309b6bf4

Note that this only changes how we allocate the empty state, and reference countings of `empty` stay the same.

PiperOrigin-RevId: 599526339
Change-Id: I2c6aaf875c144c947e17fe8f69692b1195b55dd7

Add protected copy ctor+assign to absl::LogSink, and clarify thread-safety requirements to apply to the interface methods.

PiperOrigin-RevId: 599266310
Change-Id: I3b5a91eb17b4b09feba5e048892875f3a747afb1

the lack of a feature equivalent to Bazel's alwayslink=True

PiperOrigin-RevId: 598855446
Change-Id: I0bb3bc40005908106eb7a7252572e3af153a7f5c

For consistency, all global logging configurations lives in
//absl/log/globals.h

PiperOrigin-RevId: 598194040
Change-Id: I815b7d07f8fe06c70cef83bdf825c2f7ca504a2b

Speed up `raw_hash_map::[]` with ABSL hardening enabled by unchecking dereference of iterator returned by `try_emplace`.

PiperOrigin-RevId: 597920257
Change-Id: I1b2e8f10a2f1efa763a6f0760294beafdb6fd9c0

https://bazel.build/external/overview#bzlmod

Bzlmod will be the default in a future Bazel release.
By default it requires projects to be registered with the
Bazel Central Registry (https://registry.bazel.build/) and
thus uses regular releases by default.

Users that want to "live-at-head" can still do this through
with overrides (https://bazel.build/external/module#overrides).

This change updates Abseil dependencies to use released versions.
CI uses Bzlmod except in the case of linux_gcc-floor, which will
keep testing the old WORKSPACE-based dependency system.

PiperOrigin-RevId: 597676666
Change-Id: I8d33facc432477c6dc7daa06fd00bb4ae8c4adba

Enable ABSL_BTREE_ENABLE_GENERATIONS and ABSL_SWISSTABLE_ENABLE_GENERATIONS with ABSL_HAVE_HWADDRESS_SANITIZER.

It will detect bugs similar to Asan.

Also updated related tests to pass with HWASAN.
They are still flaky because of nature of HWASAN algorithm,
but test can be update to avoid flakiness, which I will do
in followup patches.

PiperOrigin-RevId: 597613798
Change-Id: Ic8af36a268ca041c002eb561b946aa2d9b93996a

Some compilers warn if a switch block that already covers all
enumeration values also has a default label.

PiperOrigin-RevId: 597583941
Change-Id: Ib3eb08dca0a19105522c61e47944cfc75280c15e

PiperOrigin-RevId: 597297788
Change-Id: Idb4cd3f62a03204bcad423d9934963136c018996

f845e60a added an option to use C++20's
<ordering> header but the CMake install configured this as an alias
in C++17 when it is not available.

Fixes #1597

PiperOrigin-RevId: 597258569
Change-Id: I40277d55702601e1686370bee6af9b7491fd2000