Listing 1

#include <stdio.h>

function ()
  {
  FILE *file_printer;    /* Pointer to a file */
  int x, y, z;

  x=5;
  y=6;
  z=x + y;

  /* Open the printer */
  file_printer = fopen("LST","w");

  /* Print the line */
  fprintf(file_printer, "The answer is %10d", z);

  /* Close the printer */
  fclose(file_printer);
  }