wchar_t conflict for common_factor_rt.hpp in visual studio

[lamar.moore@…]

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?

[John Maddock]

I've fixed this in ​https://github.com/boostorg/math/commit/8c9709b31778c634eef095db63fc308dfbb5b68c.

A quick workaround would be to use boost/integer/common_factor_rt.hpp and boost::integer::gcd instead.

[lamar.moore@…]

Thanks for the quick update