#include <iostream>
#include <cstdlib>
#include <new>   //for nothrow, bad_alloc, set_new_handler
using namespace std;

const char *progname;
void my_new_handler();

int main(int argc, char **argv)
{
	progname = argv[0];

	cout << "How many bytes do you want to allocate? ";
	size_t n;
	cin >> n;

	char *const p1 = new(nothrow) char [n];   //return 0 on error
	if (p1 == 0) {
		cerr << progname << ": out of store\n";
		return EXIT_FAILURE;
	}
	delete[] p1;

	try {
		char *const p2 = new char [n];        //throw exception on error
		delete[] p2;
	}
	catch (const bad_alloc& bad) {
		cerr << progname << ": out of store: " << bad.what() << "\n";
		return EXIT_FAILURE;
	}

	set_new_handler(my_new_handler);
	char *const p3 = new char [n];            //call my_new_handler on error
	delete[] p3;

	return EXIT_SUCCESS;
}

void my_new_handler()
{
	cerr << progname << ": out of store\n";
	exit(EXIT_FAILURE);
}