libio/tests/tstdiomisc.c

   1 #ifndef STDIO_H
   2 #define STDIO_H <iostdio.h>
   3 #endif
   4 #include STDIO_H
   5
   6 void
   7 t1 ()
   8 {
   9   int n = -1;
  10   sscanf ("abc  ", "abc %n", &n);
  11   printf ("t1: count=%d\n", n);
  12 }
  13
  14 void
  15 t2 ()
  16 {
  17   int n;
  18   long N;
  19   int retval;
  20 #define SCAN(INPUT, FORMAT, VAR) \
  21   VAR = -1; \
  22   retval = sscanf (INPUT, FORMAT,  &VAR); \
  23   printf ("sscanf (\"%s\", \"%s\", &x) => %d, x = %ld\n", \
  24           INPUT, FORMAT, retval, (long)VAR);
  25
  26   SCAN ("12345", "%ld", N);
  27   SCAN ("12345", "%llllld", N);
  28   SCAN ("12345", "%LLLLLd", N);
  29   SCAN ("test ", "%*s%n",  n);
  30   SCAN ("test ",   "%2*s%n",  n);
  31   SCAN ("12 ",   "%l2d",  n);
  32   SCAN ("12 ",   "%2ld",  N);
  33 }
  34
  35 int
  36 main ()
  37 {
  38   t1 ();
  39   t2 ();
  40
  41   fflush (stdout);
  42   return 0;
  43 }