gcc/testsuite/gcc.dg/torture/pr49079.c

   1 /* { dg-do run } */
   2
   3 extern void abort (void);
   4
   5 struct Ustr
   6 {
   7   unsigned char data[1];
   8 };
   9
  10 static unsigned int
  11 ustr_xi__embed_val_get(const unsigned char *data)
  12 {
  13   return (unsigned int)data[0];
  14 }
  15
  16 int __attribute__((noinline)) zero(void) { return 0; }
  17
  18 static unsigned int
  19 ustr_len(const struct Ustr *s1)
  20 {
  21   return ustr_xi__embed_val_get(s1->data + 1 + zero());
  22 }
  23
  24 int
  25 main()
  26 {
  27   if (ustr_len (((struct Ustr *) "\x01" "\x0002" "s2")) != 2)
  28     abort ();
  29
  30   return 0;
  31 }