Class is_wchar

tinyformat.h:215–215

// Detect when a type is not a wchar_t string
template<typename T> struct is_wchar { typedef int tinyformat_wchar_is_not_supported; };
template<> struct is_wchar<wchar_t*> {};
template<> struct is_wchar<const wchar_t*> {};
template<int n> struct is_wchar<const wchar_t[n]> {};