https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119861
--- Comment #3 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:70bd97e89ddf8fcb8c14e84a8fd580404536eeb1 commit r16-2107-g70bd97e89ddf8fcb8c14e84a8fd580404536eeb1 Author: Tomasz KamiÅski <tkami...@redhat.com> Date: Tue Jul 8 10:04:41 2025 +0200 libstdc++: Do not expose set_brackets/set_separator for formatter with format_kind other than sequence [PR119861] The standard defines separate specializations of range-default-formatter, out of which only one for range_format::sequence provide the set_brackets and set_separator methods. We implemented it as one specialization and exposed this method for range_format other than string or debug_string, i.e. when range_formatter was used as underlying formatter. PR libstdc++/119861 libstdc++-v3/ChangeLog: * include/std/format (formatter<_Rg, _CharT>::set_separator) (formatter<_Rg, _CharT>::set_brackets): Constrain with (format_kind<_Rg> == range_format::sequence). * testsuite/std/format/ranges/pr119861_neg.cc: New test.
