1  #include <stdio.h>
       2  #include <stdlib.h>
       3  
       4  int
       5  main(int argc, char *argv[])
       6  {
       7    int a, b;
       8  
       9    a = b = -1;
      10    sscanf ("12ab", "%dab%n", &a, &b);
      11    printf ("%d, %d\n", a, b);
      12    if (a != 12 || b != 4)
      13      abort ();
      14  
      15    a = b = -1;
      16    sscanf ("12ab100", "%dab%n100", &a, &b);
      17    printf ("%d, %d\n", a, b);
      18    if (a != 12 || b != 4)
      19      abort ();
      20    return 0;
      21  }