https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121539
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:4bed19cf6170541ff757ee1b21d9fec9eb0c6541 commit r16-3224-g4bed19cf6170541ff757ee1b21d9fec9eb0c6541 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Aug 15 22:34:59 2025 +0200 c++: Fix default argument parsing in non-comma variadic methods [PR121539] While the non-comma variadic functions/methods were deprecated in C++26, they are still valid and they are valid without deprecation in C++98 to C++23. We parse default arguments followed by ...) outside of classes or for out of class definitions of methods, but I think since C++11 support in GCC 4.9 or so we consider ... to be a part of a default argument and error on it. I think a default argument can't validly contain a pack expansion that ends the expression with ..., so I think we can simply handle ...) if at depth 0 as not part of the default argument. 2025-08-15 Jakub Jelinek <ja...@redhat.com> PR c++/121539 * parser.cc (cp_parser_cache_defarg): Set done to true for CPP_ELLIPSIS followed by CPP_CLOSE_PAREN in !nsdmi at depth 0. * g++.dg/parse/defarg20.C: New test.
