[Bug c/109056] cppcheck: no warning for suspicious return type

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109056

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> -Wconversion is needed for this warning in GCC.

Which turns on -Wsign-conversion .