https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108347
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #2) > Created attachment 54223 [details] > testcase that removes the C++17isms and convert it over to C++11 The reason why I did this is because I wanted to see if older versions of GCC rejected this code and they do in a similar fashion. (MSVC still ICEs).