#include <iostream>   //C++ example
#include <cstdlib>
#include <new>        //for nothrow
using namespace std;

int main(int argc, char **argv)
{
	cout << "How many int's do you want to allocate? ";
	size_t n;
	cin >> n;

	int *const p = new(nothrow) int [n];
	if (p == 0) {
		cerr << argv[0] << ": can't allocate " << n << " int's\n";
		return EXIT_FAILURE;
	}

	p[0] = 10;
	p[1] = 20;
	p[2] = 30;
	//etc.
	p[n - 1] = 40;   //Warning: the subscripts only go up to n-1.

	delete[] p;
	return EXIT_SUCCESS;
}