https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97663
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:c3a583316776a399fea9eb79019245138a2be181 commit r9-9392-gc3a583316776a399fea9eb79019245138a2be181 Author: Jakub Jelinek <ja...@redhat.com> Date: Tue Nov 3 21:42:51 2020 +0100 c++: Don't try to parse a function declaration as deduction guide [PR97663] While these function declarations have NULL decl_specifiers->type, they have still type specifiers specified from which the default int in the return type is added, so we shouldn't try to parse those as deduction guides. 2020-11-03 Jakub Jelinek <ja...@redhat.com> PR c++/97663 * parser.c (cp_parser_init_declarator): Don't try to parse C++17 deduction guides if there are any type specifiers even when type is NULL. * g++.dg/cpp1z/class-deduction75.C: New test. (cherry picked from commit cd41e4a1864c10c7f9141284e82e5cc0a3007806)
