https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68979
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Marek Polacek from comment #1) > Why do you think this is a bug? Note that -1 << 4 is rejected in a context > where an integer constant expression is required only in C++11/14. I think that erroring out in this case is too harsh from a QOI standpoint. A warning should be sufficient.
