add_const Class
The latest version of this topic can be found at add_const Class.
Makes const type from type.
Syntax
template <class Ty>
struct add_const;
Parameters
Ty
The type to modify.
Remarks
An instance of the type modifier holds a modified-type that is Ty if Ty is a reference, a function, or a const-qualified type, otherwise const Ty.
Example
// std_tr1__type_traits__add_const.cpp
// compile with: /EHsc
#include <type_traits>
#include <iostream>
int main()
{
std::add_const<int>::type *p = (const int *)0;
p = p; // to quiet "unused" warning
std::cout << "add_const<int> == "
<< typeid(*p).name() << std::endl;
return (0);
}
add_const<int> == int
Requirements
Header: <type_traits>
Namespace: std