| commit | e9b9e38f67a008d66133535a72ada843bd66013f | [log] [tgz] |
|---|---|---|
| author | Abseil Team <absl-team@google.com> | Wed Oct 28 09:57:00 2020 -0700 |
| committer | vslashg <gfalcon@google.com> | Thu Oct 29 12:51:15 2020 -0400 |
| tree | 4ce2ce2042f7c1842e58088a7a47eed55e61bf1b | |
| parent | 962b067540f511070b7afa4cda465233b42b560a [diff] |
Export of internal Abseil changes -- 0e3e8be75b3ab243991c9b28a27623d86e4511e6 by Abseil Team <absl-team@google.com>: Add constructor overloads with signature (Mutex*, const Condition&) to MutexLock, ReaderMutexLock, WriterMutexLock, ReleasableMutexLock, MaybeMutexLock. These overloads call Mutex::LockWhen, Mutex::ReaderLockWhen, Mutex::WriterLockWhen. Using the guard classes with these new constructors replaces both manual LockWhen/Unlock sequences and the less-efficient, but popular current pattern of "absl::MutexLock lock(&mu); mu.Await(cond);". PiperOrigin-RevId: 339480213 -- ff999bc08360f5bd95557147c97b0e7b200fe3a8 by Jorg Brown <jorg@google.com>: ConvertibleToStringView wastes a lot of cycles initializing members just to reset them immediately after. Only initialize the string storage when needed. This makes StrSplit() 0-30% faster depending on the use case. PiperOrigin-RevId: 339479046 -- 0a773bfb8bc141433a41388731357001fdb34881 by Derek Mauro <dmauro@google.com>: Remove the compiler upgrade fiasco inducing -Weverything -Werror. Switch to a curated set of warnings that may be expanded in the future. PiperOrigin-RevId: 339472677 -- eab54e3e11b126283d33f64c914b200038d215a4 by Abseil Team <absl-team@google.com>: Change execute permission to match presence of the shebang remove execute permission for cmake_common.sh add execute permission for conanfile.py PiperOrigin-RevId: 339453550 -- 7f9726fb605ed20f17f3e221dbce0df03d6904c6 by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 339385761 -- f3210dbee3e8a719cf31706963721722203f90e0 by Derek Mauro <dmauro@google.com>: Switch clang compiler detection to use to the Bazel supported mechanism When Abseil launched, we relied on the compiler string "llvm", which we manually set when we used the automatic crosstool generation by using the environment variable BAZEL_COMPILER. Today, Bazel detects clang and automatically sets the compiler string to "clang". Fixes #732 PiperOrigin-RevId: 339360688 -- 413211f59e5e671bf5774efa63ab4df185c74248 by Abseil Team <absl-team@google.com>: Minor comment clarifications and cosmetic tweaks. PiperOrigin-RevId: 339344301 GitOrigin-RevId: 0e3e8be75b3ab243991c9b28a27623d86e4511e6 Change-Id: Ia5b7224cd3d274c79ec7f5514fef63014f458f0f
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.
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.
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.
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.
Abseil contains the following C++ library components:
base Abseil Fundamentals 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 algorithm library contains additions to the C++ <algorithm> library and container-based versions of such algorithms.container container library contains additional STL-style containers, including Abseil's unordered “Swiss table” containers.debugging debugging library contains code useful for enabling leak checks, and stacktrace and symbolization utilities.hash hash library contains the hashing framework and default hash functor implementations for hashable types in Abseil.memory memory library contains C++11-compatible versions of std::make_unique() and related memory management facilities.meta 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 numeric library contains C++11-compatible 128-bit integers.strings 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 synchronization library contains concurrency primitives (Abseil's absl::Mutex class, an alternative to std::mutex) and a variety of synchronization abstractions.time time library contains abstractions for computing with absolute points in time, durations of time, and formatting and parsing time within time zones.types types library contains non-container utility types, like a C++11-compatible version of the C++17 std::optional type.utility utility library contains utility and helper code.The Abseil C++ library is licensed under the terms of the Apache license. See LICENSE for more information.
For more information about Abseil: