| Defined in header <type_traits> | ||||
|---|---|---|---|---|
| (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.
Template parameters
| T | - | a type to check |
Helper variable template
| (since C++17) |
Inherited from std::integral_constant
Member constants
| value [static] | 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) |
| operator() (C++14) | returns value (public member function) |
Member types
| Type | Definition |
|---|---|
value_type | bool |
type | std::integral_constant<bool, value> |
Possible implementation
|
Example
1 2 3 4 5 6 7 8 9 10 11 12 13 | #include <type_traits> class A {public: void member() { }}; int main(){ // fails at compile time if A::member is a data member and not a function static_assert(std::is_member_function_pointer<decltype(&A::member)>::value, "A::member is not a member function."); } |
See also
| (C++11) | checks if a type is a pointer type (class template) |
| (C++11) | checks if a type is a pointer to a non-static member object (class template) |
| (C++11) | checks if a type is a pointer to a non-static member function or object (class template) |
| std::experimental::is_member_function_pointer_v_v
(library fundamentals TS) | variable template alias of std::is_member_function_pointer_v::value (variable template) |
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