[Bug c++/71537] GCC rejects consetxpr boolean conversions and comparisons on the result of pointer arithmetic.
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Sun Dec 4 13:21:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71537
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #7)
> Unfortunately, __builtin_memchr is not usable in constexpr contexts. Hardly
> any of these builtins are.
Can you explain why? Most of the builtins that can fold on GENERIC should be
usable in constexpr contexts. The constexpr folder invokes the middle-end
builtin folder.
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