https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120446
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Patrick Palka <[email protected]>: https://gcc.gnu.org/g:a9fd651fbb54024548158ee605eb13dce77afe26 commit r16-5921-ga9fd651fbb54024548158ee605eb13dce77afe26 Author: Patrick Palka <[email protected]> Date: Fri Dec 5 13:43:29 2025 -0500 libstdc++: Implement P2655R3 changes to common_reference bullet 1 We implement this paper as a DR against C++20 (as do MSVC and libc++). PR libstdc++/120446 libstdc++-v3/ChangeLog: * include/bits/version.def (common_reference): New. * include/bits/version.h: Regenerate. * include/std/type_traits (__glibcxx_want_common_reference): Define. (__common_reference_impl<T1, T2, 1>): Add pointer convertibility constraints as per P2655R3. * testsuite/20_util/common_reference/p2655r3.cc: New test. Reviewed-by: Tomasz KamiÅski <[email protected]> Reviewed-by: Jonathan Wakely <[email protected]>
