gcc/testsuite/gcc.c-torture/execute/920726-1.c

   1 #include <stdio.h>
   2 #include <stdarg.h>
   3
   4 void abort (void);
   5 void exit (int);
   6
   7 struct spurious
   8 {
   9     int anumber;
  10 };
  11
  12 int first(char *buf, char *fmt, ...)
  13 {
  14   int pos, number;
  15   va_list args;
  16   int dummy;
  17   char *bp = buf;
  18
  19   va_start(args, fmt);
  20   for (pos = 0; fmt[pos]; pos++)
  21     if (fmt[pos] == 'i')
  22       {
  23         number = va_arg(args, int);
  24         sprintf(bp, "%d", number);
  25         bp += __builtin_strlen(bp);
  26       }
  27     else
  28       *bp++ = fmt[pos];
  29
  30   va_end(args);
  31   *bp = 0;
  32   return dummy;
  33 }
  34
  35 struct spurious second(char *buf,char *fmt, ...)
  36 {
  37   int pos, number;
  38   va_list args;
  39   struct spurious dummy;
  40   char *bp = buf;
  41
  42   va_start(args, fmt);
  43   for (pos = 0; fmt[pos]; pos++)
  44     if (fmt[pos] == 'i')
  45       {
  46         number = va_arg(args, int);
  47         sprintf(bp, "%d", number);
  48         bp += __builtin_strlen(bp);
  49       }
  50     else
  51       *bp++ = fmt[pos];
  52
  53   va_end(args);
  54   *bp = 0;
  55   return dummy;
  56 }
  57
  58 int
  59 main(void)
  60 {
  61   char buf1[100], buf2[100];
  62   first(buf1, "i i ", 5, 20);
  63   second(buf2, "i i ", 5, 20);
  64   if (__builtin_strcmp ("5 20 ", buf1) || __builtin_strcmp ("5 20 ", buf2))
  65     abort();
  66   exit(0);
  67 }