stdio-common/scanf3.c

   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 }