std::ptrdiff_t

std::ptrdiff_t , .

std::ptrdiff_t , . , , int, , , 64- , INT_MAX 32- .

C++ difference_type, typedef, std::ptrdiff_t.

( , ) .

( PTRDIFF_MAX , SIZE_MAX ), std::ptrdiff_t, .

PTRDIFF_MAX, std::ptrdiff_t std::size_t: std::intptr_t.

#include <cstddef>
#include <iostream>
int main()
{
    const std::size_t N = 10;
    int* a = new int[N];
    int* end = a + N;
    for (std::ptrdiff_t i = N; i > 0; --i)
        std::cout << (*(end - i) = i) << ' ';
    delete[] a;
}

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