diff options
| -rw-r--r-- | gnu/packages/cpp.scm | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm index 0ce60c49de..49e5b52e5f 100644 --- a/gnu/packages/cpp.scm +++ b/gnu/packages/cpp.scm @@ -31,7 +31,7 @@ ;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net> ;;; Copyright © 2022, 2023 David Elsing <david.elsing@posteo.net> ;;; Copyright © 2022, 2023 Zheng Junjie <873216071@qq.com> -;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com> +;;; Copyright © 2022, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com> ;;; Copyright © 2022 Antero Mejr <antero@mailbox.org> ;;; Copyright © 2023 Sughosha <Sughosha@proton.me> ;;; Copyright © 2023 Artyom V. Poptsov <poptsov.artyom@gmail.com> @@ -609,6 +609,47 @@ container which uses the order in which keys were inserted to the container as ordering relation.") (license license:expat))) +(define-public frozen + ;; The test suite fails to compile with the latest 1.1.1 release; use a + ;; newer commit (see: + ;; https://github.com/serge-sans-paille/frozen/issues/163). + (let ((commit "dd1f58c5f6c97fbf0832cc4e84676663839b913e") + (revision "0")) + (package + (name "frozen") + (version (git-version "1.1.1" revision commit)) + (source (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/serge-sans-paille/frozen") + (commit commit))) + (file-name (git-file-name name version)) + (sha256 + (base32 + "06i307a7v6alxfy24d47b1sjkz5f4mrqwl2vb4j8zx7wlgnrf08b")))) + (build-system cmake-build-system) + (home-page "https://github.com/serge-sans-paille/frozen") + (synopsis "C++ constexpr alternative header-only library") + (description "@code{frozen} is a header-only library that provides zero +cost initialization for immutable containers, fixed-size containers, and +various algorithms. It provides features such as: +@itemize +@item +immutable (also known as frozen), @code{constexpr}-compatible versions of +{std::set}, {std::unordered_set}, {std::map} and {std::unordered_map} +@item +fixed-capacity, @code{constinit}-compatible versions of @code{std::map} and +@code{std::unordered_map} with immutable, compile-time selected keys mapped to +mutable values. +@item +zero cost initialization version of @code{std::search} for frozen needles +using Boyer-Moore or Knuth-Morris-Pratt algorithms. +@end itemize +The @code{unordered_*} containers are guaranteed perfect (no hash +collision) and the extra storage is linear with respect to the number of +keys.") + (license license:asl2.0)))) + (define-public json-dto (package (name "json-dto") |