https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77292
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> --- (In reply to Manuel López-Ibáñez from comment #4) > Note that Clang suggests two ways to silence the warning: > > prog.cc:9:10: note: add parentheses after the '!' to evaluate the comparison > first > return !a == b; > ^ > ( ) > prog.cc:9:10: note: add parentheses around left hand side expression to > silence this warning > return !a == b; > ^ > ( ) I guess I should employ here the fix-it feature we now have... > Also, we do not warn for actual booleans (bool). This is intentional. > To be able to not warn based on the runtime range of variables, we would > need something like VRP in the FE, and that is unlikely to be implemented in > the medium future. ...if ever.
