id summary reporter owner description type status milestone component version severity resolution keywords cc 12944 wchar_t conflict for common_factor_rt.hpp in visual studio lamar.moore@… John Maddock When attempting to use `common_factor.hpp` I ran into an error where `gcd_traits<>` had multiple explicit specializations for `unsigned short`. Upon further inspection I realised the vc runtime defines `wchar_t` as `typdef unsigned short wchar_t` when the option `-Zc:wchar_t (wchar_t Is Native Type)` is switched off. I had to patch the `common_factor.hpp` header in order to use this (since I do not want `wchar_t` to be a built-in type). Is there any other way around this? Am I misusing this interface? Support Requests closed To Be Determined math Boost 1.63.0 Problem fixed lamar.moore@…