https://gcc.gnu.org/g:f037fdeb95bb2b179d79ef634ced1b488560975a
commit r16-7546-gf037fdeb95bb2b179d79ef634ced1b488560975a Author: Jakub Jelinek <[email protected]> Date: Tue Feb 17 11:37:52 2026 +0100 libstdc++: Fix up submdspan std exports On Mon, Feb 16, 2026 at 01:34:50PM +0100, Tomasz Kamiński wrote: > This patch implements LWG 4491, addressing C++26 NB comments. > > libstdc++-v3/ChangeLog: > > * include/std/mdspan (std::submdspan_extents): Rename to... > (std::subextents): Rename of submdspan_extents. > (std::submdspan_canonicalize_slices): Rename to... > (std::canonical_slices): This broke +FAIL: g++.dg/modules/compile-std1.C -std=c++26 (test for excess errors) +FAIL: g++.dg/modules/compile-std1.C module-cmi std (gcm.cache/std.gcm) +FAIL: g++.dg/modules/compile-std1.C module-cmi std.compat (gcm.cache/std.compat.gcm) on all targets. The following patch fixes it. 2026-02-17 Jakub Jelinek <[email protected]> * src/c++23/std.cc.in (std::submdspan_canonicalize_slices, std::submdspan_extents): Remove exports. (std::canonical_slices, std::subextents): New exports. Diff: --- libstdc++-v3/src/c++23/std.cc.in | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libstdc++-v3/src/c++23/std.cc.in b/libstdc++-v3/src/c++23/std.cc.in index bcaa0cb51b60..514ac5939fef 100644 --- a/libstdc++-v3/src/c++23/std.cc.in +++ b/libstdc++-v3/src/c++23/std.cc.in @@ -1915,8 +1915,8 @@ export namespace std using std::full_extent_t; using std::full_extent; using std::submdspan_mapping_result; - using std::submdspan_canonicalize_slices; - using std::submdspan_extents; + using std::canonical_slices; + using std::subextents; using std::submdspan; #endif }
