VS2019, SDK 10.0.18362.0: std::char_traits moved #21
Description
in <string_ref.h> std::char_traits moved from <iosfwd> to <string>.
Solution:
//#include <iosfwd> // std::char_traits
#include <string> // std::char_traits
{{ message }}
in <string_ref.h> std::char_traits moved from <iosfwd> to <string>.
Solution:
//#include <iosfwd> // std::char_traits
#include <string> // std::char_traits