https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119427
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-15 branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>: https://gcc.gnu.org/g:0ff3b3122adfe0c479901da4fc28e367d89f185b commit r15-9659-g0ff3b3122adfe0c479901da4fc28e367d89f185b Author: Patrick Palka <ppa...@redhat.com> Date: Tue Apr 29 08:21:35 2025 -0400 libstdc++: Fix availability of std::erase_if(std::flat_foo) [PR119427] These std::erase_if overloads were wrongly implemented as hidden friends, visible only via ADL, so erase_if(x) would work but not std::erase_if(x). PR libstdc++/119427 libstdc++-v3/ChangeLog: * include/std/flat_map (_Flat_map_impl::erase_if): Replace this hidden friend with ... (_Flat_map_impl::_M_erase_if): ... this member function. (flat_map): Export _Flat_map_impl::_M_erase_if. (erase_if(flat_map)): Define. (flat_multimap): Export _Flat_map_impl::_M_erase_if. (erase_if(flat_multimap)): Define. * include/std/flat_set (_Flat_set_impl::erase_if): Replace with ... (_Flat_set_impl::_M_erase_if): ... this member function. (flat_set): Export _Flat_set_impl::_M_erase_if. (erase_if(flat_set)): Define. (flat_multiset): Export _Flat_set_impl::_M_erase_if. (erase_if(flat_multiset)): Define. * testsuite/23_containers/flat_map/1.cc (test07): New test. * testsuite/23_containers/flat_multimap/1.cc (test07): New test. * testsuite/23_containers/flat_multiset/1.cc (test09): New test. * testsuite/23_containers/flat_set/1.cc (test09): New test. Reviewed-by: Jonathan Wakely <jwak...@redhat.com> (cherry picked from commit aa93272cfd2233858da0792761387cc27f4d5ff3)
