description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | |||
---|---|---|---|---|---|---|---|---|
Learn more about: is_member_function_pointer Class |
is_member_function_pointer Class |
11/04/2016 |
|
|
02e372c4-2714-40f2-b376-2e10ca91c8ed |
Tests if type is a pointer to member function.
template <class Ty>
struct is_member_function_pointer;
Ty
The type to query.
An instance of the type predicate holds true if the type Ty is a pointer to member function or a cv-qualified
pointer to member function, otherwise it holds false.
// std__type_traits__is_member_function_pointer.cpp
// compile with: /EHsc
#include <type_traits>
#include <iostream>
struct trivial
{
int val;
};
struct functional
{
int f();
};
int main()
{
std::cout << "is_member_function_pointer<trivial *> == "
<< std::boolalpha
<< std::is_member_function_pointer<trivial *>::value
<< std::endl;
std::cout << "is_member_function_pointer<int trivial::*> == "
<< std::boolalpha
<< std::is_member_function_pointer<int trivial::*>::value
<< std::endl;
std::cout << "is_member_function_pointer<int (functional::*)()> == "
<< std::boolalpha
<< std::is_member_function_pointer<int (functional::*)()>::value
<< std::endl;
return (0);
}
is_member_function_pointer<trivial *> == false
is_member_function_pointer<int trivial::*> == false
is_member_function_pointer<int (functional::*)()> == true
Header: <type_traits>
Namespace: std