gcc/testsuite/gdc.test/fail_compilation/dbitfields.d

   1 /* REQUIRED_ARGS: -preview=bitfields
   2  * TEST_OUTPUT:
   3 ---
   4 fail_compilation/dbitfields.d(118): Error: reinterpretation through overlapped field `e` is not allowed in CTFE
   5 fail_compilation/dbitfields.d(121):        called from here: `testu()`
   6 fail_compilation/dbitfields.d(121):        while evaluating: `static assert(testu() == 1)`
   7 ---
   8  */
   9
  10 #line 100
  11
  12 union U
  13 {
  14     uint a:3;
  15     uint b:1;
  16     ulong c:64;
  17
  18     int d:3;
  19     int e:1;
  20     long f:64;
  21
  22     int i;
  23 }
  24
  25 int testu()
  26 {
  27     U u;
  28     u.d = 9;
  29     return u.e;
  30 }
  31
  32 static assert(testu() == 1);