https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95146
--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> --- (In reply to Thomas Koenig from comment #5) > Moving to the non-traditional C preprocessor will cause havoc with > the // operator in Fortran. > c = 'a' // 'b' would then be turned into c = 'a', probably not intended :-) That's one of the reasons that PR 28662 is still pending; it requires a special Fortran mode for libcpp. — See PR 28662 comment 4 to 10. – Still useful, but not trivial.
