Category 

Type Trait Functions 

Syntax 

bool __is_class(typename T) 

Returns true if and only if T is a class type, and NOT a union type. 

Returns true for classes declared with the class key class or struct. 

Returns false for reference/pointer to class type. 

Returns true for specialization of a class template. 

Ill-formed if called with the name of a template, without specifying the template parameters. A template is not a type; it is a type generator.