https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70389
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |diagnostic --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > (But somehow "x++" just increments the short unsigned int x with no such > implicit conversion, and so does not trigger the same -Wconversion error.) it does have an implicit conversion but it is assumed you understand there will always be a conversion and truncation happening.