1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  
       4  typedef __SIZE_TYPE__ size_t;
       5  extern void __chk_fail (void);
       6  extern int snprintf (char *, size_t, const char *, ...);
       7  extern inline __attribute__((gnu_inline, always_inline)) int snprintf (char *a, size_t b, const char *fmt, ...)
       8  {
       9    if (__builtin_object_size (a, 0) != -1UL && __builtin_object_size (a, 0) < b)
      10      __chk_fail ();
      11    return __builtin_snprintf (a, b, fmt, __builtin_va_arg_pack ());
      12  }
      13  extern int snprintf (char *, size_t, const char *, ...) __asm ("mysnprintf");
      14  
      15  char buf[10];
      16  
      17  int
      18  main (void)
      19  {
      20    snprintf (buf, 10, "%d%d\n", 10, 10);
      21    return 0;
      22  }
      23  
      24  /* { dg-final { scan-assembler "mysnprintf" } } */
      25  /* { dg-final { scan-assembler-not "__chk_fail" } } */