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[2001:8b0:bf73:93f7::51bb:e332]) by smtp.gmail.com with ESMTPSA id p13-20020a5d48cd000000b003432d61d6b7sm20494850wrs.51.2024.04.04.10.06.16 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Apr 2024 10:06:16 -0700 (PDT) Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.95) (envelope-from ) id 1rsQX4-002ar7-7m for gcc-patches@gcc.gnu.org; Thu, 04 Apr 2024 17:05:46 +0000 Date: Thu, 4 Apr 2024 17:05:46 +0000 (UTC) From: Joseph Myers To: gcc-patches@gcc.gnu.org Subject: [committed] wwwdocs: gcc-14: Add release notes for C23 features Message-ID: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-9.3 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Add release notes for C23 features added in GCC 14. This doesn't cover any non-C23 new C features; any such features should also have release notes added. diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html index 934cd1ad..045893cf 100644 --- a/htdocs/gcc-14/changes.html +++ b/htdocs/gcc-14/changes.html @@ -206,6 +206,31 @@ a work-in-progress.

+

C

+ +
    +
  • Some more C23 features have been implemented: +
      +
    • Bit-precise integer types (_BitInt (N) + and unsigned _BitInt (N)): integer types with + a specified number of bits. These are only supported on + IA-32/x86-64 at present.
      • +
    • Structure, union and enumeration types may be defined more + than once in the same scope with the same contents and the same + tag; if such types are defined with the same contents and the + same tag in different scopes, the types are compatible.
      • +
    • The <stdckdint.h> header for checked + integer arithmetic.
      • +
    +
    • +
  • In addition to those C23 features, there are new command-line + options -std=c23, -std=gnu23 + and -Wc11-c23-compat. These are equivalent to the + previous options -std=c2x, -std=gnu2x + and -Wc11-c2x-compat, which are deprecated but remain + supported.
    • +
+

C++