https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118875
--- Comment #2 from Eyal Rozenberg <eyalroz1 at gmx dot com> --- (In reply to Jonathan Wakely from comment #1) > (In reply to Eyal Rozenberg from comment #0) > I think you're assuming there's some specific code to deal the uppercase > form, but it just looks for a close match and suggests it. Ok, point taken. I still think it is worthwhile and more appropriate also accept the uppercase versions of the identifiers for C/C++ language standards.