http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60333
Bug ID: 60333
Summary: type_traits make_signed, make_unsigned missing support
for long long enumerations
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: harald at gigawatt dot nl
#include <type_traits>
enum E { e = 0x100000000 };
static_assert(sizeof(std::make_signed<E>::type) == sizeof(E), "");
static_assert(sizeof(std::make_unsigned<E>::type) == sizeof(E), "");
This fails on x86, because make_signed and make_unsigned never return a larger
type than (un)signed long.
