https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109278
--- Comment #5 from CVS 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:ee6ae8cb4793041590b479346433ed786a86985d commit r13-6941-gee6ae8cb4793041590b479346433ed786a86985d Author: Jakub Jelinek <ja...@redhat.com> Date: Thu Mar 30 09:34:12 2023 +0200 c++: Avoid informs without a warning [PR109278] On the following testcase we emit notes in maybe_inform_about_fndecl_for_bogus_argument_init despite no warning/error being printed before it. This is for the extended floating point type conversions where pedwarn is used, and complained is used there for 2 different purposes, one is whether an unspecific error should be emitted if we haven't complained otherwise, and one whether maybe_inform_about_fndecl_for_bogus_argument_init should be called. For the 2 pedwarns, currently it sets complained to true regardless of whether pedwarn succeeded, which results in the undesirable notes printed with -w. If complained is initialized to result of pedwarn, we would emit an error later on. So, the following patch makes complained a tristate, the additional error isn't printed if complained != 0, and maybe_inform_about_fndecl_for_bogus_argument_init is called only if complained == 1, so if pedwarn returns false, we can use complained = -1 to tell later code not to emit an error and not to call maybe_inform_about_fndecl_for_bogus_argument_init. 2023-03-30 Jakub Jelinek <ja...@redhat.com> PR c++/109278 * call.cc (convert_like_internal): If pedwarn for extended float type conversions doesn't report anything, avoid calling maybe_inform_about_fndecl_for_bogus_argument_init. * g++.dg/cpp23/ext-floating15.C: New test.
