http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56292
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-12
09:03:44 UTC ---
func() + 2 is evaluated as (unsigned char) (((int) func ()) + 2), so when the
-Wconversion warning is diagnosed before evaluating all the constexpr
expressions into constants if possible, the warning is reasonable.
Consider
constexpr std::uint8_t func() { return 0xff; }
std::uint8_t value = func() + 2;
