gcc/testsuite/gcc.c-torture/execute/20020619-1.c

   1 #if (__SIZEOF_INT__ == 4)
   2 typedef int int32;
   3 #elif (__SIZEOF_LONG__ == 4)
   4 typedef long int32;
   5 #else
   6 #error Add target support for int32
   7 #endif
   8 static int32 ref(void)
   9 {
  10   union {
  11     char c[5];
  12     int32 i;
  13   } u;
  14
  15   __builtin_memset (&u, 0, sizeof(u));
  16   u.c[0] = 1;
  17   u.c[1] = 2;
  18   u.c[2] = 3;
  19   u.c[3] = 4;
  20
  21   return u.i;
  22 }
  23
  24 int main()
  25 {
  26   int32 b = ref();
  27   if (b != 0x01020304
  28       && b != 0x04030201)
  29     abort ();
  30   return 0;
  31 }