Re: [boost] [type_traits] common_type and SFINAE

Hello, 05.10.2012 22:08, Lorenzo Caminiti wrote:

One a separate note, why the following SFINAE impl of EqualityComparable returns 0 on std::common_type<int, int>::type?

gcc-4.5.1 returns 1. Try this test on Clang: http://ideone.com/Pdube EqualityComparable<remove_refs<std::common_type<int,int>::type>::type>::value returns 1 on Clang 3.2. Note difference in printed types on GCC/Clang (rval ref). Best Regards, Evgeny