https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103347
--- Comment #10 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:d71d019f63ed5d3fdb34579023bafa4dcf323f2c commit r12-5488-gd71d019f63ed5d3fdb34579023bafa4dcf323f2c Author: Marek Polacek <pola...@redhat.com> Date: Mon Nov 22 14:09:25 2021 -0500 c++: Fix missing NSDMI diagnostic in C++98 [PR103347] Here the problem is that we aren't detecting a NSDMI in C++98: struct A { void *x = NULL; }; because maybe_warn_cpp0x uses input_location and that happens to point to NULL which comes from a system header. Jakub suggested changing the location to the '=', thereby avoiding the system header problem. To that end, I've added a new location_t member into cp_declarator. This member is used when this declarator is part of an init-declarator. The rest of the changes is obvious. I've also taken the liberty of adding loc_or_input_loc, since I want to avoid checking for UNKNOWN_LOCATION. PR c++/103347 gcc/cp/ChangeLog: * cp-tree.h (struct cp_declarator): Add a location_t member. (maybe_warn_cpp0x): Add a location_t parameter with a default argument. (loc_or_input_loc): New. * decl.c (grokdeclarator): Use loc_or_input_loc. Pass init_loc down to maybe_warn_cpp0x. * error.c (maybe_warn_cpp0x): Add a location_t parameter. Use it. * parser.c (make_declarator): Initialize init_loc. (cp_parser_member_declaration): Set init_loc. (cp_parser_condition): Likewise. (cp_parser_init_declarator): Likewise. (cp_parser_parameter_declaration): Likewise. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/nsdmi-warn1.C: New test. * g++.dg/cpp0x/nsdmi-warn1.h: New file.
