On Fri, 12 May 2023, Florian Weimer wrote: > This sone seems to be a good candidate for additional errors, though: > > warned_here = pedwarn > (loc, warn_return_type >= 0 ? OPT_Wreturn_type : 0, > "%<return%> with no value, in function returning non-void"); > > It's a clear type volation that can lead to obscure bugs. Maybe the > converse as well.
This one is valid before C99 (the pedwarn is conditional on flag_isoc99, otherwise it's a warning). The converse is unconditionally invalid (though the case where the returned expression from the function with void return type itself has void type is valid in C++ and only a pedwarn-if-pedantic for C; that case is a reasonable extension). -- Joseph S. Myers jos...@codesourcery.com
