tvl-depot/README.md
Abseil Team d732f2014b Changes imported from Abseil "staging" branch:
- d5a5960a133967e4af02836d304884cd6cbd6e46 Adjusting time tests for flakiness by Gennadiy Civil <misterg@google.com>
  - ccb8535fdc92c3c99bfa2795e75d3fbdcb134571 Internal-only tweak. by Jorg Brown <jorg@google.com>
  - 4c03dd9e54bd4645e7e7a8dfb3c590f5b0654884 Fix comment on some C++11 type traits backport. by Xiaoyi Zhang <zhangxy@google.com>
  - 43cd12d2304464163e33ae932fbb842a869213dd Allow intrinsic int128 to be set for __ppc64__ targets. by Abseil Team <absl-team@google.com>
  - 789e9c13de67ef3c7ba09c765c3484621897b6bb Update README.md description of 'types' library to be con... by Abseil Team <absl-team@google.com>
  - 8be10d7683c90b85244ddc67360a7ca2dfffdf01 Update comment on move constructors' noexcept specificati... by Xiaoyi Zhang <zhangxy@google.com>

GitOrigin-RevId: d5a5960a133967e4af02836d304884cd6cbd6e46
Change-Id: I743efee47b9e65f46a44d9ab80ccd62cfd0c1301
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# 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](#about)
- [Codemap](#codemap)
- [License](#license)
- [Links](#links)
<a name="about"></a>
## 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.
## Codemap
Abseil contains the following C++ library components:
* [`base`](absl/base/) Abseil Fundamentals
<br /> 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`](absl/algorithm/)
<br /> The `algorithm` library contains additions to the C++ `<algorithm>`
library and container-based versions of such algorithms.
* [`container`](absl/container/)
<br /> The `container` library contains additional STL-style containers.
* [`debugging`](absl/debugging/)
<br /> The `debugging` library contains code useful for enabling leak
checks. Future updates will add stacktrace and symbolization utilities.
* [`memory`](absl/memory/)
<br /> The `memory` library contains C++11-compatible versions of
`std::make_unique()` and related memory management facilities.
* [`meta`](absl/meta/)
<br /> 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`](absl/numeric/)
<br /> The `numeric` library contains C++11-compatible 128-bit integers.
* [`strings`](absl/strings/)
<br /> 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`](absl/synchronization/)
<br /> The `synchronization` library contains concurrency primitives (Abseil's
`absl::Mutex` class, an alternative to `std::mutex`) and a variety of
synchronization abstractions.
* [`time`](absl/time/)
<br /> The `time` library contains abstractions for computing with absolute
points in time, durations of time, and formatting and parsing time within
time zones.
* [`types`](absl/types/)
<br /> 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](LICENSE) for more information.
## Links
For more information about Abseil:
* Consult our [Abseil Introduction](http://abseil.io/about/intro)
* Read [Why Adopt Abseil](http://abseil.io/about/philosophy) to understand our
design philosophy.
* Peruse our
[Abseil Compatibility Guarantees](http://abseil.io/about/compatibility) to
understand both what we promise to you, and what we expect of you in return.
## Disclaimer
* This is not an official Google product.