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GET /api/1.1/patches/2223148/?format=api
{ "id": 2223148, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223148/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/20260414143908.930196-1-tkaminsk@redhat.com/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/1.1/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260414143908.930196-1-tkaminsk@redhat.com>", "date": "2026-04-14T14:35:22", "name": "libstdc++: Define __cpp_lib_stdbit_h and __cpp_lib_stdckdint_h feature test macros.", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "0a39402e7a8ff877394b6ad69287389bad86017a", "submitter": { "id": 90409, "url": "http://patchwork.ozlabs.org/api/1.1/people/90409/?format=api", "name": "Tomasz Kamiński", "email": "tkaminsk@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/20260414143908.930196-1-tkaminsk@redhat.com/mbox/", "series": [ { "id": 499858, "url": "http://patchwork.ozlabs.org/api/1.1/series/499858/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=499858", "date": "2026-04-14T14:35:22", "name": "libstdc++: Define __cpp_lib_stdbit_h and __cpp_lib_stdckdint_h feature test macros.", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499858/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223148/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223148/checks/", "tags": {}, "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=UicQ4aiv;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; 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charset=\"US-ASCII\"; x-default=true", "X-BeenThere": "gcc-patches@gcc.gnu.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Gcc-patches mailing list <gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>", "List-Archive": "<https://gcc.gnu.org/pipermail/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-request@gcc.gnu.org?subject=help>", "List-Subscribe": "<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "This implements LWG4550: Need new feature test macros for <stdckdint.h>\nand <stdbit.h>.\n\nlibstdc++-v3/ChangeLog:\n\n\t* include/bits/version.def (stdbit_h, stdckdint_h): Define.\n\t* include/bits/version.h: Regenerate.\n\t* include/c_compatibility/stdbit.h (__cpp_lib_stdbit_h): Define\n\tand use it in guards.\n\t* include/c_compatibility/stdckdint.h (__cpp_lib_stdckdint_h):\n\tDefine and use it in guards.\n---\nTesting on x86_64-linux. Dedicated tests 20_util/stdbit* and 26_numerics/stdckint*\nalready passes, so valus seem correct. \n\n libstdc++-v3/include/bits/version.def | 16 +++++++++++++++\n libstdc++-v3/include/bits/version.h | 20 +++++++++++++++++++\n libstdc++-v3/include/c_compatibility/stdbit.h | 8 ++++++--\n .../include/c_compatibility/stdckdint.h | 8 ++++++--\n 4 files changed, 48 insertions(+), 4 deletions(-)", "diff": "diff --git a/libstdc++-v3/include/bits/version.def b/libstdc++-v3/include/bits/version.def\nindex 94fc1f85993..13dba4d6378 100644\n--- a/libstdc++-v3/include/bits/version.def\n+++ b/libstdc++-v3/include/bits/version.def\n@@ -1871,6 +1871,22 @@ ftms = {\n };\n };\n \n+ftms = {\n+ name = stdbit_h;\n+ values = {\n+ v = 202603;\n+ cxxmin = 26;\n+ };\n+};\n+\n+ftms = {\n+ name = stdckdint_h;\n+ values = {\n+ v = 202603;\n+ cxxmin = 26;\n+ };\n+};\n+\n ftms = {\n name = adaptor_iterator_pair_constructor;\n values = {\ndiff --git a/libstdc++-v3/include/bits/version.h b/libstdc++-v3/include/bits/version.h\nindex 402e67580eb..743f7e29fe2 100644\n--- a/libstdc++-v3/include/bits/version.h\n+++ b/libstdc++-v3/include/bits/version.h\n@@ -2076,6 +2076,26 @@\n #endif /* !defined(__cpp_lib_stdatomic_h) */\n #undef __glibcxx_want_stdatomic_h\n \n+#if !defined(__cpp_lib_stdbit_h)\n+# if (__cplusplus > 202302L)\n+# define __glibcxx_stdbit_h 202603L\n+# if defined(__glibcxx_want_all) || defined(__glibcxx_want_stdbit_h)\n+# define __cpp_lib_stdbit_h 202603L\n+# endif\n+# endif\n+#endif /* !defined(__cpp_lib_stdbit_h) */\n+#undef __glibcxx_want_stdbit_h\n+\n+#if !defined(__cpp_lib_stdckdint_h)\n+# if (__cplusplus > 202302L)\n+# define __glibcxx_stdckdint_h 202603L\n+# if defined(__glibcxx_want_all) || defined(__glibcxx_want_stdckdint_h)\n+# define __cpp_lib_stdckdint_h 202603L\n+# endif\n+# endif\n+#endif /* !defined(__cpp_lib_stdckdint_h) */\n+#undef __glibcxx_want_stdckdint_h\n+\n #if !defined(__cpp_lib_adaptor_iterator_pair_constructor)\n # if (__cplusplus >= 202100L) && _GLIBCXX_HOSTED\n # define __glibcxx_adaptor_iterator_pair_constructor 202106L\ndiff --git a/libstdc++-v3/include/c_compatibility/stdbit.h b/libstdc++-v3/include/c_compatibility/stdbit.h\nindex 1fb691e36c1..fa4ec0414c6 100644\n--- a/libstdc++-v3/include/c_compatibility/stdbit.h\n+++ b/libstdc++-v3/include/c_compatibility/stdbit.h\n@@ -29,7 +29,11 @@\n #ifndef _GLIBCXX_STDBIT_H\n #define _GLIBCXX_STDBIT_H\n \n-#if __cplusplus > 202302L\n+#define __glibcxx_want_stdbit_h\n+#include <bits/version.h>\n+\n+#ifdef __cpp_lib_stdbit_h // C++ >= 26\n+\n #include <bit>\n \n #define __STDC_VERSION_STDBIT_H__ 202311L\n@@ -577,6 +581,6 @@ _GLIBCXX_STDBIT_FUNC(stdc_bit_floor);\n _GLIBCXX_STDBIT_FUNC(stdc_bit_ceil);\n #undef _GLIBCXX_STDBIT_FUNC\n #endif // !DOXYGEN\n-#endif // C++26\n+#endif // __cpp_lib_stdbit_h\n \n #endif // _GLIBCXX_STDBIT_H\ndiff --git a/libstdc++-v3/include/c_compatibility/stdckdint.h b/libstdc++-v3/include/c_compatibility/stdckdint.h\nindex 5bdf4dc7b24..0f0b30cc899 100644\n--- a/libstdc++-v3/include/c_compatibility/stdckdint.h\n+++ b/libstdc++-v3/include/c_compatibility/stdckdint.h\n@@ -29,7 +29,11 @@\n #ifndef _GLIBCXX_STDCKDINT_H\n #define _GLIBCXX_STDCKDINT_H\n \n-#if __cplusplus > 202302L\n+#define __glibcxx_want_stdckdint_h\n+#include <bits/version.h>\n+\n+#ifdef __cpp_lib_stdckdint_h // C++ >= 26\n+\n #include <type_traits>\n #include <concepts>\n \n@@ -96,6 +100,6 @@ using __gnu_cxx::ckd_sub;\n using __gnu_cxx::ckd_mul;\n #endif\n \n-#endif // C++26\n+#endif // __cpp_lib_stdckdint_h\n \n #endif // _GLIBCXX_STDCKDINT_H\n", "prefixes": [] }