Defined in header <type_traits>
template< class T >
struct is_member_function_pointer;
(since C++11)

Checks whether T is a non-static member function pointer. Provides the member constant value which is equal to true, if T is a non-static member function pointer type. Otherwise, value is equal to false.

The behavior of a program that adds specializations for is_member_function_pointer or is_member_function_pointer_v (since C++17) is undefined.

Template parameters

T - a type to check

Helper variable template

template< class T >
inline constexpr bool is_member_function_pointer_v = is_member_function_pointer<T>::value;
(since C++17)

Inherited from std::integral_constant

Member constants

true if T is a member function pointer type , false otherwise
(public static member constant)

Member functions

operator bool
converts the object to bool, returns value
(public member function)
returns value
(public member function)

Member types

Type Definition
value_type bool
type std::integral_constant<bool, value>

Possible implementation

template< class T >
struct is_member_function_pointer_helper : std::false_type {};
template< class T, class U>
struct is_member_function_pointer_helper<T U::*> : std::is_function<T> {};
template< class T >
struct is_member_function_pointer 
  : is_member_function_pointer_helper< typename std::remove_cv<T>::type > {};


#include <type_traits>
class A {
    void member() { }
int main()
    // fails at compile time if A::member is a data member and not a function
                  "A::member is not a member function."); 

See also

checks if a type is a pointer type
(class template)
checks if a type is a pointer to a non-static member object
(class template)
checks if a type is a pointer to an non-static member function or object
(class template)

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