Abseil - C++ Common Libraries

The repository contains the Abseil C++ library code. Abseil is an open-source
collection of C++ code (compliant to C++17) designed to augment the C++
standard library.

- Abseil - C++ Common Libraries
- Table of Contents
- About Abseil
- Quickstart
- Installation
- Building Abseil
- Support
- Codemap
- Releases
- License
- Links

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.

Installation

Run:

``

bash

$ npm i abseil.cxx





And then include abseil as follows:

cxx

// main.cxx

#include 



int main() { / ... / }





Finally, compile while adding the path

node_modules/taskflow.cxx

 to your compiler's include paths.

bash

$ clang++ -I./node_modules/abseil.cxx main.cxx  # or, use g++

$ g++     -I./node_modules/abseil.cxx main.cxx





You may also use a simpler approach with the cpoach tool, which automatically adds the necessary include paths of all the installed dependencies for your project.

bash

$ cpoach clang++ main.cxx  # or, use g++

$ cpoach g++     main.cxx







Building Abseil



Bazel and CMake are the official

build systems for Abseil.

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 and CMake

Quickstart.





Support



Abseil follows Google's Foundational C++ Support

Policy. See

this

table

for a list of currently supported versions compilers, platforms, and build

tools.





Codemap



Abseil contains the following C++ library components:



*

base

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++



  library and container-based versions of such algorithms.

*

cleanup

The

cleanup

 library contains the control-flow-construct-like type

absl::Cleanup

 which is used for executing a callback on scope exit.

*

container

The

container

 library contains additional STL-style containers,

  including Abseil's unordered "Swiss table" containers.

*

crc The crc

 library contains code for

  computing error-detecting cyclic redundancy checks on data.

*

debugging

The

debugging

 library contains code useful for enabling leak

  checks, and stacktrace and symbolization utilities.

*

flags

The

flags

 library contains code for handling command line flags for

  libraries and binaries built with Abseil.

*

hash

The

hash

 library contains the hashing framework and default hash

  functor implementations for hashable types in Abseil.

*

log

The

log library contains LOG and CHECK

 macros and facilities

  for writing logged messages out to disk,

stderr

, or user-extensible

  destinations.

*

memory

The

memory

 library contains memory management facilities that augment

  C++'s

 library.

*

meta

The

meta

 library contains type checks

  similar to those available in the C++

 library.

*

numeric

The

numeric

 library contains 128-bit integer types as well as

  implementations of C++20's bitwise math functions.

*

profiling

The

profiling

 library contains utility code for profiling C++

  entities.  It is currently a private dependency of other Abseil libraries.

*

random

The

random

 library contains functions for generating pseudorandom

  values.

*

status

The

status

 library contains abstractions for error handling,

  specifically

absl::Status and absl::StatusOr

.

*

strings

The

strings

 library contains a variety of strings routines and

  utilities.

*

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.

*

utility

The

utility` library contains utility and helper code.

Releases

Abseil recommends users "live-at-head" (update to the latest commit from the
master branch as often as possible). However, we realize this philosophy doesn't
work for every project, so we also provide Long Term Support
Releases to which we backport
fixes for severe bugs. See our release
management document for more details.

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:

* Consult our Abseil Introduction
* Read Why Adopt Abseil to understand our
design philosophy.
* Peruse our
Abseil Compatibility Guarantees to
understand both what we promise to you, and what we expect of you in return.

![](https://wolfram77.github.io)

![SRC](https://github.com/abseil/abseil-cpp)
![ORG](https://nodef.github.io)
![](https://ga-beacon.deno.dev/G-RC63DPBH3P:SH3Eq-NoQ9mwgYeHWxu7cw/github.com/nodef/abseil.cxx)

Abseil - C++ Common Libraries

The repository contains the Abseil C++ library code. Abseil is an open-source
collection of C++ code (compliant to C++17) designed to augment the C++
standard library.

- Abseil - C++ Common Libraries
- Table of Contents
- About Abseil
- Quickstart
- Installation
- Building Abseil
- Support
- Codemap
- Releases
- License
- Links

About Abseil

Quickstart

Installation

Run:

``

bash

$ npm i abseil.cxx





And then include abseil as follows:

cxx

// main.cxx

#include 



int main() { / ... / }





Finally, compile while adding the path

node_modules/taskflow.cxx

 to your compiler's include paths.

bash

$ clang++ -I./node_modules/abseil.cxx main.cxx  # or, use g++

$ g++     -I./node_modules/abseil.cxx main.cxx





You may also use a simpler approach with the cpoach tool, which automatically adds the necessary include paths of all the installed dependencies for your project.

bash

$ cpoach clang++ main.cxx  # or, use g++

$ cpoach g++     main.cxx







Building Abseil



Bazel and CMake are the official

build systems for Abseil.

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 and CMake

Quickstart.





Support



Abseil follows Google's Foundational C++ Support

Policy. See

this

table

for a list of currently supported versions compilers, platforms, and build

tools.





Codemap



Abseil contains the following C++ library components:



*

base

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++



  library and container-based versions of such algorithms.

*

cleanup

The

cleanup

 library contains the control-flow-construct-like type

absl::Cleanup

 which is used for executing a callback on scope exit.

*

container

The

container

 library contains additional STL-style containers,

  including Abseil's unordered "Swiss table" containers.

*

crc The crc

 library contains code for

  computing error-detecting cyclic redundancy checks on data.

*

debugging

The

debugging

 library contains code useful for enabling leak

  checks, and stacktrace and symbolization utilities.

*

flags

The

flags

 library contains code for handling command line flags for

  libraries and binaries built with Abseil.

*

hash

The

hash

 library contains the hashing framework and default hash

  functor implementations for hashable types in Abseil.

*

log

The

log library contains LOG and CHECK

 macros and facilities

  for writing logged messages out to disk,

stderr

, or user-extensible

  destinations.

*

memory

The

memory

 library contains memory management facilities that augment

  C++'s

 library.

*

meta

The

meta

 library contains type checks

  similar to those available in the C++

 library.

*

numeric

The

numeric

 library contains 128-bit integer types as well as

  implementations of C++20's bitwise math functions.

*

profiling

The

profiling

 library contains utility code for profiling C++

  entities.  It is currently a private dependency of other Abseil libraries.

*

random

The

random

 library contains functions for generating pseudorandom

  values.

*

status

The

status

 library contains abstractions for error handling,

  specifically

absl::Status and absl::StatusOr

.

*

strings

The

strings

 library contains a variety of strings routines and

  utilities.

*

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.

*

utility

The

utility` library contains utility and helper code.

Releases

License

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