frozen

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  "desc": "Header-only, constexpr alternative to gperf for C++14 users",
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  "full_name": "frozen",
  "github_default_branch": "master",
  "github_last_commit_at": "2026-04-20T21:27:53Z",
  "github_readme_excerpt": "Frozen\n######\n\n.. image:: https://travis-ci.org/serge-sans-paille/frozen.svg?branch=master\n   :target: https://travis-ci.org/serge-sans-paille/frozen\n\nHeader-only library that provides 0 cost initialization for immutable containers, fixed-size containers, and various algorithms.\n\nFrozen provides:\n\n- immutable (a.k.a. frozen), ``constexpr``-compatible versions of ``std::set``,\n  ``std::unordered_set``, ``std::map`` and ``std::unordered_map``.\n\n- fixed-capacity, ``constinit``-compatible versions of ``std::map`` and\n  ``std::unordered_map`` with immutable, compile-time selected keys mapped\n  to mutable values.\n\n- 0-cost initialization version of ``std::search`` for frozen needles using\n  Boyer-Moore or Knuth-Morris-Pratt algorithms.\n\n\nThe ``unordered_*`` containers are guaranteed *perfect* (a.k.a. no hash\ncollision) and the extra storage is linear with respect to the number of keys.\n\nOnce initialized, the container keys cannot be updated, and in exchange, lookups\nare faster. And initialization is free when ``constexpr`` or ``constinit`` is \nused :-).\n\nStable Version\n--------------\n\nThe Frozen library is pretty stable now, have been so for years, so:\n\n1. The ``master`` version can be used as the default **stable** version.\n2. It is in maintenance mode. I still accept commits that make the code cleaner\n   ``|`` faster ``|`` more modern, but expect some latency in the review process.\n\n\nInstallation\n------------\n\nJust copy the ``include/frozen`` directory somewhere and points to it using the ``-I`` flag. Alternatively, using CMake:\n\n.. code-block:: sh\n\n    mkdir build\n    cd build\n    cmake -D CMAKE_BUILD_TYPE=Release ..\n    make install\n\n\nInstallation via CMake populates configuration files into the ``/usr/local/share``\ndirectory which can be consumed by CMake\u0027s ``find_package`` intrinsic function.\n\nRequirements\n------------\n\nA C++ compiler that supports C++14. Clang version 5 is a good pick, GCC version\n6 lags behind in terms of ``constexpr`` compilation time (At least o",
  "github_repo": "serge-sans-paille/frozen",
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  "homepage": "https://github.com/serge-sans-paille/frozen",
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  "license": "Apache-2.0",
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  "name": "frozen",
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  "ruby_source_path": "Formula/f/frozen.rb",
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