add_pointer Class
Makes a pointer-to-type from a specified type.
template<class Ty>
struct add_pointer;
Parameters
- Ty
The type to modify.
Remarks
The member typedef type names the same type as remove_reference<T>::type*.
Because it is invalid to make a pointer from a reference, add_pointer removes the reference, if any, from the specified type before it makes a pointer-to-type. Consequently, you can use a type with add_pointer without being concerned about whether the type is a reference.
Example
The following example demonstrates that add_pointer of a type is the same as a pointer to that type.
// std_tr1__type_traits__add_pointer.cpp
// compile with: /EHsc
#include <type_traits>
#include <iostream>
int main()
{
std::add_pointer<int>::type *p = (int **)0;
p = p; // to quiet "unused" warning
std::cout << "add_pointer<int> == "
<< typeid(*p).name() << std::endl;
return (0);
}
add_pointer<int> == int *
Requirements
Header: <type_traits>
Namespace: std