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

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