1 #ifndef _LIBCPP_TYPE_TRAITS 2 #define _LIBCPP_TYPE_TRAITS 3 4 5 template <class _Tp> 6 struct underlying_type 7 { 8 typedef __underlying_type(_Tp) type; 9 }; 10 11 #endif // _LIBCPP_TYPE_TRAITS 12 13 #include "B.h" 14
