{"id":2229750,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2229750/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/20260428171341.1433009-1-jwakely@redhat.com/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/1.1/projects/17/?format=json","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":"<20260428171341.1433009-1-jwakely@redhat.com>","date":"2026-04-28T17:10:16","name":"libstdc++: Update C++23 status table","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"679862e3fb5df30bdbf5fa3dd11f5e995d83a1d2","submitter":{"id":48004,"url":"http://patchwork.ozlabs.org/api/1.1/people/48004/?format=json","name":"Jonathan Wakely","email":"jwakely@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/20260428171341.1433009-1-jwakely@redhat.com/mbox/","series":[{"id":501907,"url":"http://patchwork.ozlabs.org/api/1.1/series/501907/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501907","date":"2026-04-28T17:10:16","name":"libstdc++: Update C++23 status table","version":1,"mbox":"http://patchwork.ozlabs.org/series/501907/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2229750/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2229750/checks/","tags":{},"headers":{"Return-Path":"","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=DbdpjNsA;\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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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1777396430;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding;\n bh=Kkf9BMEw6DgIv1GpBDyXnyIgD/7xB6UTnjIwib4F8+o=;\n b=DbdpjNsAFjr+vQwHs20k1Aj2OQJnq/Rn4y2zrqIUp3Ax4ierGnVCBr5CKtT7sy+kDxRubW\n gEVf/i7YcZfabHg/k6We76lNh/8GDuVcDyYkZ70M0dRkXwkAK3GaRU28fOfDc/RO5gKFw3\n 63O/T6QgJy3/IedsgYY/cUMmEKyb7dw=","X-MC-Unique":"eIziJMWdP0aH-3B1yGUdEg-1","X-Mimecast-MFC-AGG-ID":"eIziJMWdP0aH-3B1yGUdEg_1777396424","From":"Jonathan Wakely ","To":"gcc-patches@gcc.gnu.org,\n\tlibstdc++@gcc.gnu.org","Subject":"[PATCH] libstdc++: Update C++23 status table","Date":"Tue, 28 Apr 2026 18:10:16 +0100","Message-ID":"<20260428171341.1433009-1-jwakely@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.93","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"CPTqriWgGA0DMq8xn3Jyo6qgXOLOEDYKxgISaOrbg3w_1777396424","X-Mimecast-Originator":"redhat.com","Content-Type":"text/plain","Content-Transfer-Encoding":"8bit","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"This hasn't been updated to reflect the new features in GCC 16 (and one\nthat was backported to gcc-15 for GCC 15.3 but not released yet).\n\nlibstdc++-v3/ChangeLog:\n\n\t* doc/xml/manual/status_cxx2023.xml: Update status table.\n\t* doc/html/manual/status.html: Regenerate.\n---\n\nI plan to push this to trunk.\n\nOK for the gcc-16 branch too?\n\n libstdc++-v3/doc/html/manual/status.html | 55 ++++++++++---------\n .../doc/xml/manual/status_cxx2023.xml | 52 +++++++-----------\n 2 files changed, 48 insertions(+), 59 deletions(-)","diff":"diff --git a/libstdc++-v3/doc/html/manual/status.html b/libstdc++-v3/doc/html/manual/status.html\nindex 64a484082689..c8b441b727bd 100644\n--- a/libstdc++-v3/doc/html/manual/status.html\n+++ b/libstdc++-v3/doc/html/manual/status.html\n@@ -1976,11 +1976,11 @@ or any notes about the implementation.\n \n P2432R1\n \n- 12.1   starts_with and ends_with \n+ 12.1   starts_with and ends_with \n \n P1659R3\n \n- __cpp_lib_ranges_starts_ends_with >= 202106L zip \n+ 16.1 __cpp_lib_ranges_starts_ends_with >= 202106L zip \n \n P2321R2\n \n@@ -2037,11 +2037,11 @@ or any notes about the implementation.\n \n \t__cpp_lib_ranges_to_container >= 202202L,\n \t__cpp_lib_containers_ranges >= 202202L\n- Ranges iterators as inputs to non-Ranges algorithms \n+ Ranges iterators as inputs to non-Ranges algorithms \n \n P2408R5\n \n- \n+ 16.1 \n \t__cpp_lib_algorithm_iterator_requirements >= 202207L\n Pipe support for user-defined range adaptors \n \n@@ -2050,14 +2050,17 @@ or any notes about the implementation.\n 13.1 \n \t__cpp_lib_bind_pack >= 202202L,\n \t__cpp_lib_ranges >= 202202L\n- \n+ \n \tranges::iota, ranges::shift_left,\n and ranges::shift_right\n \n \n P2440R1\n \n- 13.1 (ranges::iota) \n+ \n+ 13.1 (ranges::iota)\n+ 16.1 (shift algos)\n+ \n \t__cpp_lib_ranges_iota >= 202202L,\n \t__cpp_lib_shift >= 202202L\n ranges::find_last \n@@ -2068,11 +2071,11 @@ or any notes about the implementation.\n \n P2302R4\n \n- 13.1 __cpp_lib_ranges_contains >= 202207L Making multi-param constructors of views explicit \n+ 13.1 __cpp_lib_ranges_contains >= 202207L Making multi-param constructors of views explicit \n \n P2711R1\n \n-   ranges::fold \n+ 16.1   ranges::fold \n \n P2322R6\n \n@@ -2120,25 +2123,25 @@ or any notes about the implementation.\n \n \n \t
13.1 (missing changes to std::tuple)
14.1 (complete)
\n- __cpp_lib_reference_from_temporary >= 202202L \n+ __cpp_lib_reference_from_temporary >= 202202L \n Move-only types for equality_comparable_with, totally_ordered_with,\n \tand three_way_comparable_with\n \n \n P2404R3\n \n- __cpp_lib_concepts >= 202207L A trait for implicit lifetime types \n+ 16.1 __cpp_lib_concepts >= 202207L A trait for implicit lifetime types \n \n P2674R1\n \n- __cpp_lib_is_implicit_lifetime >= 202302L \n+ 16.1 __cpp_lib_is_implicit_lifetime >= 202302L \n \tcommon_reference_t of reference_wrapper\n \tShould Be a Reference Type\n \n \n P2655R3\n \n- __cpp_lib_common_reference >= 202302L Deprecate numeric_limits::has_denorm \n+ 15.3 __cpp_lib_common_reference >= 202302L Deprecate numeric_limits::has_denorm \n \n P2614R2\n \n@@ -2152,11 +2155,11 @@ or any notes about the implementation.\n \n P1518R2\n \n- 12.1   Heterogeneous erasure overloads for associative containers \n+ 12.1   Heterogeneous erasure overloads for associative containers \n \n P2077R3\n \n- __cpp_lib_associative_heterogeneous_erasure >= 202110L <flat_map> \n+ 16.1 __cpp_lib_associative_heterogeneous_erasure >= 202110L <flat_map> \n \n P0429R9\n \n@@ -2164,35 +2167,35 @@ or any notes about the implementation.\n \n P1222R4\n \n- 15.1 __cpp_lib_flat_set >= 202207L mdspan \n+ 15.1 __cpp_lib_flat_set >= 202207L mdspan \n \n P0009R18\n \n- __cpp_lib_mdspan >= 202207L \n+ 16.1 __cpp_lib_mdspan >= 202207L \n \tindex_type & size_type\n \tin mdspan\n \n \n P2599R2\n \n- __cpp_lib_mdspan >= 202207L \n+ 16.1 __cpp_lib_mdspan >= 202207L \n \tmdspan: rename pointer and\n \tcontiguous\n \n \n P2604R0\n \n- __cpp_lib_mdspan >= 202207L Add the missing empty to mdspan \n+ 16.1 __cpp_lib_mdspan >= 202207L Add the missing empty to mdspan \n \n P2613R1\n \n- __cpp_lib_mdspan >= 202207L \n+ 16.1 __cpp_lib_mdspan >= 202207L \n \tlayout_stride static extents default constructor fix\n \n \n P2763R1\n \n-  \n+ 16.1  \n Strings and text\n string contains function \n \n@@ -2210,7 +2213,7 @@ or any notes about the implementation.\n \n P0448R4\n \n- 12.1 __cpp_lib_spanstream >= 202106L std::string::substr() && \n+ 12.1 __cpp_lib_spanstream >= 202106L std::string::substr() && \n \n P2438R2\n \n@@ -2368,28 +2371,28 @@ or any notes about the implementation.\n \n P1642R11\n \n- 13.1   Providing size feedback in the Allocator interface \n+ 13.1   Providing size feedback in the Allocator interface \n \n P0401R6\n \n- __cpp_lib_allocate_at_least >= 202306L \n+ 16.1 __cpp_lib_allocate_at_least >= 202306L \n \tDisallow User Specialization of allocator_traits\n \n \n P2652R2\n \n-   Explicit lifetime management \n+   Explicit lifetime management \n \n P2590R2\n \n- __cpp_lib_start_lifetime_as >= 202207L \n+ 16.1 __cpp_lib_start_lifetime_as >= 202207L \n \tFixing std::start_lifetime_as and\n \tstd::start_lifetime_as_array\n \n \n P2679R2\n \n-   out_ptr - a scalable output pointer abstraction \n+ 16.1   out_ptr - a scalable output pointer abstraction \n \n P1132R8\n \ndiff --git a/libstdc++-v3/doc/xml/manual/status_cxx2023.xml b/libstdc++-v3/doc/xml/manual/status_cxx2023.xml\nindex af40eabbd8c9..be44adfaccbf 100644\n--- a/libstdc++-v3/doc/xml/manual/status_cxx2023.xml\n+++ b/libstdc++-v3/doc/xml/manual/status_cxx2023.xml\n@@ -175,14 +175,13 @@ or any notes about the implementation.\n \n \n \n- \n starts_with and ends_with \n \n \n P1659R3\n \n \n- \n+ 16.1 \n __cpp_lib_ranges_starts_ends_with >= 202106L \n \n \n@@ -331,14 +330,13 @@ or any notes about the implementation.\n \n \n \n- \n Ranges iterators as inputs to non-Ranges algorithms \n \n \n P2408R5\n \n \n- \n+ 16.1 \n \n \t__cpp_lib_algorithm_iterator_requirements >= 202207L\n \n@@ -359,7 +357,6 @@ or any notes about the implementation.\n \n \n \n- \n \n \tranges::iota, ranges::shift_left,\n and ranges::shift_right\n@@ -369,7 +366,10 @@ or any notes about the implementation.\n P2440R1\n \n \n- 13.1 (ranges::iota) \n+ \n+ 13.1 (ranges::iota)\n+ 16.1 (shift algos)\n+ \n \n \t__cpp_lib_ranges_iota >= 202202L,\n \t__cpp_lib_shift >= 202202L\n@@ -399,14 +399,13 @@ or any notes about the implementation.\n \n \n \n- \n Making multi-param constructors of views explicit \n \n \n P2711R1\n \n \n- \n+ 16.1 \n \n \n \n@@ -543,7 +542,6 @@ or any notes about the implementation.\n \n \n \n- \n \n Move-only types for equality_comparable_with, totally_ordered_with,\n \tand three_way_comparable_with\n@@ -553,24 +551,22 @@ or any notes about the implementation.\n P2404R3\n \n \n- \n+ 16.1 \n __cpp_lib_concepts >= 202207L \n \n \n \n- \n A trait for implicit lifetime types \n \n \n P2674R1\n \n \n- \n+ 16.1 \n __cpp_lib_is_implicit_lifetime >= 202302L \n \n \n \n- \n \n \tcommon_reference_t of reference_wrapper\n \tShould Be a Reference Type\n@@ -580,7 +576,7 @@ or any notes about the implementation.\n P2655R3\n \n \n- \n+ 15.3 \n __cpp_lib_common_reference >= 202302L \n \n \n@@ -625,14 +621,13 @@ or any notes about the implementation.\n \n \n \n- \n Heterogeneous erasure overloads for associative containers \n \n \n P2077R3\n \n \n- \n+ 16.1 \n __cpp_lib_associative_heterogeneous_erasure >= 202110L \n \n \n@@ -659,19 +654,17 @@ or any notes about the implementation.\n \n \n \n- \n mdspan \n \n \n P0009R18\n \n \n- \n+ 16.1 \n __cpp_lib_mdspan >= 202207L \n \n \n \n- \n \n \tindex_type & size_type\n \tin mdspan\n@@ -681,12 +674,11 @@ or any notes about the implementation.\n P2599R2\n \n \n- \n+ 16.1 \n __cpp_lib_mdspan >= 202207L \n \n \n \n- \n \n \tmdspan: rename pointer and\n \tcontiguous\n@@ -696,24 +688,22 @@ or any notes about the implementation.\n P2604R0\n \n \n- \n+ 16.1 \n __cpp_lib_mdspan >= 202207L \n \n \n \n- \n Add the missing empty to mdspan \n \n \n P2613R1\n \n \n- \n+ 16.1 \n __cpp_lib_mdspan >= 202207L \n \n \n \n- \n \n \tlayout_stride static extents default constructor fix\n \n@@ -722,7 +712,7 @@ or any notes about the implementation.\n P2763R1\n \n \n- \n+ 16.1 \n \n \n \n@@ -777,7 +767,6 @@ or any notes about the implementation.\n \n \n \n- \n std::string::substr() && \n \n \n@@ -1175,14 +1164,13 @@ or any notes about the implementation.\n \n \n \n- \n Providing size feedback in the Allocator interface \n \n \n P0401R6\n \n \n- \n+ 16.1 \n __cpp_lib_allocate_at_least >= 202306L \n \n \n@@ -1201,19 +1189,17 @@ or any notes about the implementation.\n \n \n \n- \n Explicit lifetime management \n \n \n P2590R2\n \n \n- \n+ 16.1 \n __cpp_lib_start_lifetime_as >= 202207L \n \n \n \n- \n \n \tFixing std::start_lifetime_as and\n \tstd::start_lifetime_as_array\n@@ -1223,7 +1209,7 @@ or any notes about the implementation.\n P2679R2\n \n \n- \n+ 16.1 \n \n \n \n","prefixes":[]}