/** @file list1301.cpp */
/** Listing 13-1. Copying Integers from a File to Standard Output */
#include <cstdio>
#include <fstream>
#include <iostream>
#include <istream>
#include <ostream>

int main()
{
  std::ifstream in("list1301.txt");
  if (not in)
    std::perror("list1301.txt");
  else
  {
    int x(0);
    while (in >> x)
      std::cout << x << '\n'; 
    in.close();
  }
}