Export of internal Abseil changes

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517dc7eba9878290fc93c6523dc6d6e2c49b8c1e by Abseil Team <absl-team@google.com>:

Handle 'nan' in HumanReadableInt::ToInt64.

PiperOrigin-RevId: 318121226

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4fa6103b46dbc1375d416810dba591ab4f4898d1 by Abseil Team <absl-team@google.com>:

Promote `float`s to `double`s before formatting.

This will bring StrFormat behavior more in line with that of sprintf.

PiperOrigin-RevId: 318091841

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e4083a4b64b077d8520ccd8e0ca90da24f4ea24d by Abseil Team <absl-team@google.com>:

Google-internal changes only.

PiperOrigin-RevId: 318069900

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ab24f60127db089bccaf5fb7d2d1967c76f34768 by Greg Falcon <gfalcon@google.com>:

Inclusive language fix: Stop using blacklist/whitelist terminology in Abseil.

PiperOrigin-RevId: 317925379

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52b56a27a773ea7c10ea8fd456ed606b9d778947 by Abseil Team <absl-team@google.com>:

Add test for floats and label tests for double properly.

PiperOrigin-RevId: 317916380

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0f405960ab5b34d673244fda8bb9141c8f5c1a4f by Abseil Team <absl-team@google.com>:

Remove the static initialization of global variables used by absl::Mutex
as requested by Chromium

PiperOrigin-RevId: 317911430

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ce8cb49d8f4f68950fd111682657ba57d5a09ca0 by Abseil Team <absl-team@google.com>:

Internal Change

PiperOrigin-RevId: 317864956

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a781948e09fb8406d21a494b2fa4f78edaf9c2ea by Abseil Team <absl-team@google.com>:

Swap ABSL_DLL / ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES order to fix clang-cl builds.

PiperOrigin-RevId: 317858053

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4ba197f0dd2cbf8f9b96cebffd878c8847d6ce8d by Gennadiy Rozental <rogeeff@google.com>:

Migrate use of annotation macros to ABSL namespaced names

PiperOrigin-RevId: 317792057
GitOrigin-RevId: 517dc7eba9878290fc93c6523dc6d6e2c49b8c1e
Change-Id: I1a0c04d01adbdc5106b68fd69c97c31f822e11dc
13 files changed
tree: d6af92a7f4307c1bb433b59515a034cba7eade8b
  1. absl/
  2. ci/
  3. CMake/
  4. .clang-format
  5. .gitignore
  6. ABSEIL_ISSUE_TEMPLATE.md
  7. AUTHORS
  8. BUILD.bazel
  9. CMakeLists.txt
  10. conanfile.py
  11. CONTRIBUTING.md
  12. FAQ.md
  13. LICENSE
  14. LTS.md
  15. README.md
  16. UPGRADES.md
  17. WORKSPACE
README.md

Abseil - C++ Common Libraries

The repository contains the Abseil C++ library code. Abseil is an open-source collection of C++ code (compliant to C++11) designed to augment the C++ standard library.

Table of Contents

About Abseil

Abseil is an open-source collection of C++ library code designed to augment the C++ standard library. The Abseil library code is collected from Google's own C++ code base, has been extensively tested and used in production, and is the same code we depend on in our daily coding lives.

In some cases, Abseil provides pieces missing from the C++ standard; in others, Abseil provides alternatives to the standard for special needs we've found through usage in the Google code base. We denote those cases clearly within the library code we provide you.

Abseil is not meant to be a competitor to the standard library; we've just found that many of these utilities serve a purpose within our code base, and we now want to provide those resources to the C++ community as a whole.

Quickstart

If you want to just get started, make sure you at least run through the Abseil Quickstart. The Quickstart contains information about setting up your development environment, downloading the Abseil code, running tests, and getting a simple binary working.

Building Abseil

Bazel is the official build system for Abseil, which is supported on most major platforms (Linux, Windows, macOS, for example) and compilers. See the quickstart for more information on building Abseil using the Bazel build system.

If you require CMake support, please check the CMake build instructions.

Codemap

Abseil contains the following C++ library components:

  • base Abseil Fundamentals
    The base library contains initialization code and other code which all other Abseil code depends on. Code within base may not depend on any other code (other than the C++ standard library).
  • algorithm
    The algorithm library contains additions to the C++ <algorithm> library and container-based versions of such algorithms.
  • container
    The container library contains additional STL-style containers, including Abseil's unordered “Swiss table” containers.
  • debugging
    The debugging library contains code useful for enabling leak checks, and stacktrace and symbolization utilities.
  • hash
    The hash library contains the hashing framework and default hash functor implementations for hashable types in Abseil.
  • memory
    The memory library contains C++11-compatible versions of std::make_unique() and related memory management facilities.
  • meta
    The meta library contains C++11-compatible versions of type checks available within C++14 and C++17 versions of the C++ <type_traits> library.
  • numeric
    The numeric library contains C++11-compatible 128-bit integers.
  • strings
    The strings library contains a variety of strings routines and utilities, including a C++11-compatible version of the C++17 std::string_view type.
  • synchronization
    The synchronization library contains concurrency primitives (Abseil's absl::Mutex class, an alternative to std::mutex) and a variety of synchronization abstractions.
  • time
    The time library contains abstractions for computing with absolute points in time, durations of time, and formatting and parsing time within time zones.
  • types
    The types library contains non-container utility types, like a C++11-compatible version of the C++17 std::optional type.
  • utility
    The utility library contains utility and helper code.

License

The Abseil C++ library is licensed under the terms of the Apache license. See LICENSE for more information.

Links

For more information about Abseil: