https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104966
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Created attachment 52642 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52642&action=edit Preprocessed source for the first issue This is the original unreduced preprocessed output for the test libstdc++-v3/testsuite/22_locale/money_get/cons/3.cc -std=gnu++20 -Wall -O2 gives four bogus warnings for this one.