is_member_pointer Class
Tests if type is a pointer to member.
Syntax
template <class Ty>
struct is_member_pointer;
Parameters
Ty
The type to query.
Remarks
An instance of the type predicate holds true if the type Ty is a pointer to member function or a pointer to member object, or a cv-qualified
form of one of them, otherwise it holds false.
Example
// std__type_traits__is_member_pointer.cpp
// compile with: /EHsc
#include <type_traits>
#include <iostream>
struct trivial
{
int val;
};
struct functional
{
int f();
};
int main()
{
std::cout << "is_member_pointer<trivial *> == "
<< std::boolalpha
<< std::is_member_pointer<trivial *>::value
<< std::endl;
std::cout << "is_member_pointer<int trivial::*> == "
<< std::boolalpha
<< std::is_member_pointer<int trivial::*>::value
<< std::endl;
std::cout << "is_member_pointer<int (functional::*)()> == "
<< std::boolalpha
<< std::is_member_pointer<int (functional::*)()>::value
<< std::endl;
return (0);
}
is_member_pointer<trivial *> == false
is_member_pointer<int trivial::*> == true
is_member_pointer<int (functional::*)()> == true
Requirements
Header: <type_traits>
Namespace: std
See also
<type_traits>
is_member_function_pointer Class
is_member_object_pointer Class
is_pointer Class
Feedback
https://aka.ms/ContentUserFeedback.
În curând: Pe parcursul anului 2024, vom elimina treptat Probleme legate de GitHub ca mecanism de feedback pentru conținut și îl vom înlocui cu un nou sistem de feedback. Pentru mai multe informații, consultați:Trimiteți și vizualizați feedback pentru