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C++ Standard Libraries

implementations (8)

libstdc++

  • full_name: GNU C++ Standard Library
  • vendor: GNU Project
  • url: https://gcc.gnu.org/onlinedocs/libstdc++/
  • source: https://gcc.gnu.org/git/gcc.git
  • ships_with: GCC
  • platforms: linux, freebsd, netbsd, windows-mingw, macos-gcc
  • license: GPL-3.0 WITH GCC-exception-3.1
  • description: The default C++ standard library for GCC. Ships with every GCC release and is the default on most Linux distributions. Provides comprehensive C++ standard support with GNU extensions.
  • versions: {'15.2': '2025-08-08', '15.1': '2025-04-24', '14.2': '2024-08-01', '14.1': '2024-05-07', '13.3': '2024-05-21', '13.2': '2023-07-27', '13.1': '2023-04-26', '12.4': '2024-06-20', '12.3': '2023-05-08', '12.2': '2022-08-19', '12.1': '2022-05-06', '11.5': '2024-07-19', '11.4': '2023-05-29', '11.3': '2022-04-21', '11.2': '2021-07-28', '11.1': '2021-04-27', '10.5': '2023-07-07', '10.4': '2022-06-28', '10.3': '2021-04-08', '10.2': '2020-07-23', '10.1': '2020-05-07', '9.5': '2022-05-27', '9.4': '2021-06-01', '9.3': '2020-03-12', '9.2': '2019-08-12', '9.1': '2019-05-03', '8.5': '2021-05-14', '8.4': '2020-03-04', '8.3': '2019-02-22', '8.2': '2018-07-26', '8.1': '2018-05-02', '7.5': '2019-11-14', '7.4': '2018-12-06', '7.3': '2018-01-25', '7.2': '2017-08-14', '7.1': '2017-05-02', '6.5': '2018-10-26', '6.4': '2017-07-04', '6.3': '2016-12-21', '6.2': '2016-08-22', '6.1': '2016-04-27', '5.5': '2017-10-10', '5.4': '2016-06-03', '5.3': '2015-12-04', '5.2': '2015-07-16', '5.1': '2015-04-22', '4.9.4': '2016-08-03', '4.9.3': '2015-06-26', '4.9.2': '2014-10-30', '4.9.1': '2014-07-16', '4.9.0': '2014-04-22', '4.8.5': '2015-06-23', '4.8.4': '2014-12-19', '4.8.3': '2014-05-22', '4.8.2': '2013-10-16', '4.8.1': '2013-05-31', '4.8.0': '2013-03-22'}
  • standard_support: {'C++98': '3.0', 'C++11': '4.8.1', 'C++14': '5.1', 'C++17': '7.1', 'C++20': '11.1', 'C++23': '14.1'}

libc++

  • full_name: LLVM C++ Standard Library
  • vendor: LLVM Project
  • url: https://libcxx.llvm.org/
  • source: https://github.com/llvm/llvm-project/tree/main/libcxx
  • ships_with: LLVM/Clang
  • platforms: macos, ios, linux, freebsd, windows, android, fuchsia
  • license: Apache-2.0 WITH LLVM-exception
  • description: LLVM's C++ standard library implementation. Default on macOS/iOS (via Apple Clang) and Fuchsia. Designed for standards conformance and ABI stability. Often the first to implement new C++ features.
  • versions: {'22.1': '2026-02-24', '21.1': '2025-08-26', '20.1': '2025-03-27', '19.1': '2024-09-17', '18.1': '2024-03-05', '17.0': '2023-09-19', '16.0': '2023-03-18', '15.0': '2022-09-06', '14.0': '2022-03-25', '13.0': '2021-10-04', '12.0': '2021-04-14', '11.1': '2021-02-17', '11.0': '2020-10-12', '10.0': '2020-03-24', '9.0': '2019-09-19', '8.0': '2019-03-20', '7.1': '2019-05-28', '7.0': '2018-09-19', '6.0': '2018-03-08', '5.0': '2017-09-07', '4.0': '2017-03-13', '3.9': '2016-09-02', '3.8': '2016-03-08', '3.7': '2015-09-01', '3.6': '2015-02-27', '3.5': '2014-09-03', '3.4': '2014-01-06', '3.3': '2013-06-17', '3.2': '2012-12-20', '3.1': '2012-05-22', '3.0': '2011-12-01'}
  • standard_support: {'C++11': '3.4', 'C++14': '3.5', 'C++17': '5.0', 'C++20': '13.0', 'C++23': '18.0'}

msvc-stl

  • full_name: Microsoft C++ Standard Library
  • vendor: Microsoft
  • url: https://learn.microsoft.com/en-us/cpp/standard-library/
  • source: https://github.com/microsoft/STL
  • ships_with: MSVC (Visual Studio)
  • platforms: windows
  • license: Apache-2.0 WITH LLVM-exception
  • description: Microsoft's C++ standard library. Ships with Visual Studio and MSVC compiler. Open-sourced in 2019. Targets Windows exclusively. Known for excellent debug iterator support and visualization.
  • versions: {'18.4': '2026-03-01', '18.0': '2025-11-01', '17.14': '2025-05-01', '17.13': '2025-02-25', '17.12': '2024-11-12', '17.11': '2024-08-13', '17.10': '2024-05-21', '17.9': '2024-02-13', '17.8': '2023-11-14', '17.7': '2023-08-08', '17.6': '2023-05-16', '17.5': '2023-02-21', '17.4': '2022-11-08', '17.3': '2022-08-09', '17.2': '2022-05-10', '17.1': '2022-02-15', '17.0': '2021-11-08', '16.11': '2021-08-10', '16.10': '2021-05-25', '16.9': '2021-03-02', '16.8': '2020-11-10', '16.7': '2020-08-05', '16.6': '2020-05-19', '16.5': '2020-03-16', '16.4': '2019-12-03', '16.3': '2019-09-23', '16.2': '2019-07-24', '16.1': '2019-05-21', '16.0': '2019-04-02', '15.9': '2018-11-19', '15.8': '2018-08-14', '15.7': '2018-05-07', '15.6': '2018-03-06', '15.5': '2017-12-04', '15.4': '2017-10-10', '15.3': '2017-08-14', '15.2': '2017-03-31', '15.0': '2017-03-07', '14.0': '2015-07-20', '12.0': '2013-10-17', '11.0': '2012-09-12', '10.0': '2010-04-12', '9.0': '2007-11-19', '8.0': '2005-11-07'}
  • standard_support: {'C++14': '14.0', 'C++17': '15.7', 'C++20': '16.11', 'C++23': '17.6'}

stdcxx

  • full_name: Apache C++ Standard Library
  • vendor: Apache Software Foundation (originally Rogue Wave)
  • url: https://stdcxx.apache.org/
  • ships_with: Standalone / HP-UX aCC
  • platforms: linux, solaris, hpux, aix, windows
  • license: Apache-2.0
  • description: Originally Rogue Wave's C++ Standard Library, donated to Apache. Was used as the default C++ library on HP-UX and some commercial Unix systems. Project is retired/dormant.
  • versions: {'4.3.0': '2014-01-01', '4.2.1': '2008-10-01', '4.2.0': '2008-05-01', '4.1.3': '2006-11-01'}

stlport

  • full_name: STLport
  • vendor: STLport Project (originally Boris Fomitchev)
  • url: http://www.stlport.org/
  • ships_with: Standalone
  • platforms: linux, windows, solaris, macos, embedded
  • license: BSD-like
  • description: Multiplatform C++ standard library based on SGI STL. Was popular in the 2000s as a portable, high-performance alternative. Development ceased around 2012.
  • versions: {'5.2.1': '2008-10-01', '5.2.0': '2008-08-01', '5.1.7': '2008-04-01', '5.1.5': '2006-08-01', '5.0': '2005-06-01', '4.6.2': '2004-01-01'}

dinkumware

  • full_name: Dinkum C++ Library
  • vendor: Dinkumware, Ltd. (P.J. Plauger)
  • url: https://www.dinkumware.com/
  • ships_with: Commercial license / was used by MSVC historically
  • platforms: windows, embedded, cross-platform
  • license: Commercial
  • description: Commercial C++ standard library. Historical basis for Microsoft's STL implementation. Also sold for embedded and cross-platform use. Still available commercially.

etl

  • full_name: Embedded Template Library
  • vendor: John Wellbelove / community
  • url: https://www.etlcpp.com/
  • source: https://github.com/ETLCPP/etl
  • ships_with: Standalone
  • platforms: embedded, bare-metal, any
  • license: MIT
  • description: C++ template library for embedded applications. Provides fixed-capacity containers and utilities that do not use dynamic memory. Not a full std implementation but a practical alternative for resource-constrained targets.
  • versions: {'20.39.4': '2024-08-01', '20.38.0': '2024-01-01', '20.37.0': '2023-06-01', '20.35.0': '2023-01-01'}

eastl

  • full_name: EASTL
  • vendor: Electronic Arts
  • url: https://github.com/electronicarts/EASTL
  • source: https://github.com/electronicarts/EASTL
  • ships_with: Standalone
  • platforms: windows, linux, macos, consoles
  • license: BSD-3-Clause
  • description: Game-oriented C++ standard library alternative from EA. Designed for high-performance game development with custom allocator support and predictable performance. Not a full std replacement but provides containers and algorithms.
  • versions: {'3.21.23': '2024-02-01', '3.21.12': '2023-07-01', '3.20.04': '2023-02-01', '3.19.05': '2022-05-01', '3.18.00': '2021-01-01'}