remove_extent Class
The latest version of this topic can be found at remove_extent Class.
Makes element type from array type.
Syntax
template <class T>
struct remove_extent;
template <class T>
using remove_extent_t = typename remove_extent<T>::type;
Parameters
T
The type to modify.
Remarks
An instance of remove_extent<T> holds a modified-type that is T1 when T is of the form T1[N], otherwise T.
Example
#include <type_traits>
#include <iostream>
int main()
{
std::cout << "remove_extent_t<int> == "
<< typeid(std::remove_extent_t<int>).name()
<< std::endl;T
std::cout << "remove_extent_t<int[5]> == "
<< typeid(std::remove_extent_t<int[5]>).name()
<< std::endl;T
std::cout << "remove_extent_t<int[5][10]> == "
<< typeid(std::remove_extent_t<int[5][10]>).name()
<< std::endl;
return (0);
}
remove_extent_t<int> == int
remove_extent_t<int[5]> == int
remove_extent_t<int[5][10]> == int [10]
Requirements
Header: <type_traits>
Namespace: std