gcc/testsuite/gcc.c-torture/execute/builtins/lib/printf.c

   1 #include <stdio.h>
   2 #include <stdarg.h>
   3 extern void abort (void);
   4 extern int inside_main;
   5
   6 __attribute__ ((__noinline__))
   7 int
   8 printf (const char *string, ...)
   9 {
  10   va_list ap;
  11   int r;
  12 #ifdef __OPTIMIZE__
  13   if (inside_main)
  14     abort();
  15 #endif
  16   va_start (ap, string);
  17   r = vprintf (string, ap);
  18   va_end (ap);
  19   return r;
  20 }
  21
  22
  23 /* Locking stdio doesn't matter for the purposes of this test.  */
  24 __attribute__ ((__noinline__))
  25 int
  26 printf_unlocked (const char *string, ...)
  27 {
  28   va_list ap;
  29   int r;
  30 #ifdef __OPTIMIZE__
  31   if (inside_main)
  32     abort();
  33 #endif
  34   va_start (ap, string);
  35   r = vprintf (string, ap);
  36   va_end (ap);
  37   return r;
  38 }