array::difference_type
The type of a signed distance between two elements.
typedef std::ptrdiff_t difference_type;
Remarks
The signed integer type describes an object that can represent the difference between the addresses of any two elements in the controlled sequence. It is a synonym for the type std::ptrdiff_t.
Example
// std_tr1__array__array_difference_type.cpp
// compile with: /EHsc
#include <array>
#include <iostream>
typedef std::array<int, 4> Myarray;
int main()
{
Myarray c0 = {0, 1, 2, 3};
// display contents " 0 1 2 3"
for (Myarray::const_iterator it = c0.begin();
it != c0.end(); ++it)
std::cout << " " << *it;
std::cout << std::endl;
// display distance first-last " -4"
Myarray::difference_type diff = c0.begin() - c0.end();
std::cout << " " << diff;
std::cout << std::endl;
return (0);
}
0 1 2 3 -4
Requirements
Header: <array>
Namespace: std