gcc/testsuite/gcc.c-torture/execute/930930-2.c

   1 int
   2 test_endianness()
   3 {
   4   union doubleword
   5     {
   6       double d;
   7       unsigned long u[2];
   8     } dw;
   9   dw.d = 10;
  10   return dw.u[0] != 0 ? 1 : 0;
  11 }
  12
  13 int
  14 test_endianness_vol()
  15 {
  16   union doubleword
  17     {
  18       volatile double d;
  19       volatile long u[2];
  20     } dw;
  21   dw.d = 10;
  22   return dw.u[0] != 0 ? 1 : 0;
  23 }
  24
  25 main ()
  26 {
  27   if (test_endianness () != test_endianness_vol ())
  28     abort ();
  29   exit (0);
  30 }