https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64679
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:a733dea9e7c39352ce9f72059938833eaa819467 commit r13-121-ga733dea9e7c39352ce9f72059938833eaa819467 Author: Marek Polacek <pola...@redhat.com> Date: Fri Apr 29 15:01:12 2022 -0400 c++: wrong parse with functors [PR64679] Consider struct F { F(int) {} F operator()(int) const { return *this; } }; and F(i)(0)(0); where we're supposed to first call the constructor and then invoke the operator() twice. However, we parse this as an init-declarator: "(i)" looks like a perfectly valid declarator, then we see an '(' and think it must be an initializer, so we commit and we're toast. My fix is to look a little bit farther before deciding we've seen an initializer. This is only a half of c++/64679, the other part of the PR is unrelated: there the problem is that we are calling pushdecl while parsing tentatively (in cp_parser_parameter_declaration_list), which is bad. PR c++/64679 gcc/cp/ChangeLog: * parser.cc (cp_parser_init_declarator): Properly handle a series of operator() calls, they are not part of an init-declarator. gcc/testsuite/ChangeLog: * g++.dg/parse/functor1.C: New test.
