https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82018
--- Comment #7 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- I expect strong negative feedback if -Wextra starts emitting lots of warnings about code which is not problematic. This would diminish the usefulness of -Wextra, and people will simply remove it from their Makefiles. Another alternative would be to have three flags: -Wconversion like now -Wconversion-extra which catches stuff like i=2.0 (without rounding errors), to be enabled by -Wextra -Wconversion-all which also catches stuff which is always harmless, like i8=i4, c4=r4 etc.
