https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103934
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Thomas Rodgers <rodge...@gcc.gnu.org>: https://gcc.gnu.org/g:56cf9372c0596c4df4003c72dc4665a306fbfe31 commit r13-5977-g56cf9372c0596c4df4003c72dc4665a306fbfe31 Author: Thomas W Rodgers <rodg...@twrodgers.com> Date: Fri Feb 10 10:09:06 2023 -0800 libstdc++: Add missing free functions for atomic_flag [PR103934] This patch adds - atomic_flag_wait atomic_flag_wait_explicit atomic_flag_notify atomic_flag_notify_explicit Which were missed when commit 83a1be introduced C++20 atomic wait. libstdc++-v3/ChangeLog: PR libstdc++/103934 * include/std/atomic (atomic_flag_wait): Add. (atomic_flag_wait_explicit): Add. (atomic_flag_notify): Add. (atomic_flag_notify_explicit): Add. * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Add test case to cover missing atomic_flag free functions.