https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107761
--- Comment #10 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tomasz Kaminski <tkami...@gcc.gnu.org>: https://gcc.gnu.org/g:b7b8eb90abaeaaf4a51325e087cd43a4dac8d25a commit r16-2098-gb7b8eb90abaeaaf4a51325e087cd43a4dac8d25a Author: Luc Grosheintz <luc.groshei...@gmail.com> Date: Tue Jul 8 10:24:26 2025 +0200 libstdc++: Implement mdspan and tests [PR107761]. Implements the class mdspan as described in N4950, i.e. without P3029. It also adds tests for mdspan. This commit completes the implementation of P0009, i.e. the C++23 part <mdspan>. PR libstdc++/107761 libstdc++-v3/ChangeLog: * include/std/mdspan (mdspan): New class. * src/c++23/std.cc.in (mdspan): Add. * testsuite/23_containers/mdspan/class_mandate_neg.cc: New test. * testsuite/23_containers/mdspan/mdspan.cc: New test. * testsuite/23_containers/mdspan/layout_like.h: Add class LayoutLike which models a user-defined layout. Reviewed-by: Tomasz KamiÅski <tkami...@redhat.com> Signed-off-by: Luc Grosheintz <luc.groshei...@gmail.com>