bsl/is__union_8hpp_source.html

 #ifndef BSL_IS_UNION_HPP
 #define BSL_IS_UNION_HPP

 #include "bool_constant.hpp"

 namespace bsl
 {
     template<typename T>
     class is_union final :    // --
         public bool_constant<__is_union(T)>
     {};
 }

 #endif
bsl::integral_constant
If the provided type is an array type (taking into account const qualifications), provides the member...
Definition: integral_constant.hpp:45

bool_constant.hpp

bsl::is_union
If the provided type is a union type, provides the member constant value equal to true....
Definition: is_union.hpp:52