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Abseil Team f0f15c2778 Export of internal Abseil changes.
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7fb969986d7d5a1b30233a94ae7ea29e1abf8937 by Greg Falcon <gfalcon@google.com>:

Fix whitespace in str_join.h.

PiperOrigin-RevId: 208082852

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85428003a8a29fbcd92c0b48708a69460eeb0e8f by Abseil Team <absl-team@google.com>:

Add missing back-ticks to the comments.

PiperOrigin-RevId: 207985417

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0bbac248d5649ac1d7bc71ff1025a11332fb2026 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 207927484

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f587324b99570b403b4626fb03fce16f0d950b05 by Abseil Team <absl-team@google.com>:

Update BaseCountedInstance to have comparison operators and allow them to be tracked by InstanceTracker.

PiperOrigin-RevId: 207919218

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d7f410e4f15328412941f16e25ba3735d5bdfda6 by Derek Mauro <dmauro@google.com>:

Internal import of GitHub PR #153
Removed "warning treated as error" flag from MSVC

PiperOrigin-RevId: 207908806

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59eefc78f8571ffc51cb636894015ce2580508d7 by Abseil Team <absl-team@google.com>:

Fix namespace references in examples from 'std::' to 'absl::'.

PiperOrigin-RevId: 207895230

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151df17b6544222e29913b034a1296c0e14374d5 by Abseil Team <absl-team@google.com>:

Internal Change

PiperOrigin-RevId: 207894949
GitOrigin-RevId: 7fb969986d7d5a1b30233a94ae7ea29e1abf8937
Change-Id: I00097afbe9610ddb3f2330a2a86dcffde7bb6675
2018-08-09 14:37:31 -04:00
absl Export of internal Abseil changes. 2018-08-09 14:37:31 -04:00
CMake - 2db207ef16d548380e4f5cd1d583546d0b5f7d61 Run clang-format on all outbound Copybara-transformed code. by Daniel Katz <katzdm@google.com> 2018-05-17 12:20:21 -04:00
.clang-format Add Google-style .clang-format file. 2017-10-12 13:01:26 -06:00
.gitignore Changes imported from Abseil "staging" branch: 2017-09-27 16:03:52 -04:00
ABSEIL_ISSUE_TEMPLATE.md Changes imported from Abseil "staging" branch: 2018-02-01 10:36:37 -05:00
AUTHORS Initial Commit 2017-09-19 16:54:40 -04:00
CMakeLists.txt Removed "warning treated as error" flag from MSVC (#153) 2018-08-08 13:38:37 -04:00
CONTRIBUTING.md Changes imported from Abseil "staging" branch: 2017-10-17 16:42:15 -04:00
LICENSE Initial Commit 2017-09-19 16:54:40 -04:00
LTS.md Export of internal Abseil changes. 2018-06-20 09:26:33 -04:00
README.md - edb38790ce245c95715e5c50dfafb0db79d2cdc4 Add quickstart and build sections to readme. by Alex Strelnikov <strel@google.com> 2018-04-10 10:27:42 -04:00
WORKSPACE Export of internal Abseil changes. 2018-07-17 14:32:16 -04:00

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.
  • debugging
    The debugging library contains code useful for enabling leak checks. Future updates will add stacktrace and symbolization utilities.
  • 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.

License

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

For more information about Abseil: