ex1b3.c

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#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

#include "nums.h"

int main(int argc, char** argv)
{
   const char* usage = "usage: %s filename\n";

   /* Check arguments, we need a filename.
    */
   if (argc < 2)
   {
      fprintf(stderr, usage, argv[0]);
      exit(EXIT_FAILURE);
   }

   /* we assume 32 bit integers, otherwise it will not work
    */
   assert(sizeof(int) == 4);
   
   NUMS* nsp = nums_read(argv[1]);

   if (NULL == nsp)
      return EXIT_FAILURE;

   fprintf(stderr, "Total numbers read = %zu\n", nums_used(nsp));

   nums_print(nsp);
   
   nums_free(nsp);
   
   return EXIT_SUCCESS;
}