1  #include <stdio.h>
       2  #include <stdlib.h>
       3  
       4  int
       5  main(int arc, char *argv[])
       6  {
       7    int n, res;
       8    unsigned int val;
       9    char s[] = "111";
      10  
      11    val = n = -1;
      12    res = sscanf(s, "%u %n", &val, &n);
      13    printf("Result of sscanf = %d\n", res);
      14    printf("Scanned format %%u = %u\n", val);
      15    printf("Possibly scanned format %%n = %d\n", n);
      16    if (n != 3 || val != 111 || res != 1)
      17      abort ();
      18  
      19    val = n = -1;
      20    res = sscanf(s, "%u%n", &val, &n);
      21    printf("Result of sscanf = %d\n", res);
      22    printf("Scanned format %%u = %u\n", val);
      23    printf("Possibly scanned format %%n = %d\n", n);
      24    if (n != 3 || val != 111 || res != 1)
      25      abort ();
      26  
      27    return 0;
      28  }