gcc/testsuite/gdc.dg/torture/gdc198.d

   1 // https://bugzilla.gdcproject.org/show_bug.cgi?id=198
   2 // { dg-do run }
   3 // { dg-skip-if "needs gcc/config.d" { ! d_runtime } }
   4
   5 struct S198a
   6 {
   7     union
   8     {
   9         float[3] v;
  10         struct
  11         {
  12             float x;
  13             float y;
  14             float z;
  15         }
  16     }
  17
  18     this(float x_, float y_, float z_)
  19     {
  20         x = x_;
  21         y = y_;
  22         z = z_;
  23     }
  24
  25     ref S198a opOpAssign(string op)(S198a operand)
  26     if (op == "+")
  27     {
  28         x += operand.x;
  29         y += operand.y;
  30         z += operand.z;
  31         return this;
  32     }
  33 }
  34
  35 struct S198b
  36 {
  37     @property get()
  38     {
  39         union Buf
  40         {
  41             void[0] result;
  42         }
  43         const Buf buf = { };
  44         return buf.result;
  45     }
  46 }
  47
  48 struct S198c
  49 {
  50     @property get()
  51     {
  52         union Buf
  53         {
  54             TypeInfo info;
  55             void[0] result;
  56         }
  57         const Buf buf = { };
  58         return buf.result;
  59     }
  60 }
  61
  62
  63 void main()
  64 {
  65     S198a sum = S198a(0, 0, 0);
  66
  67     foreach(size_t v; 0 .. 3)
  68         sum += S198a(1, 2, 3);
  69
  70     assert(sum.v == [3, 6, 9]);
  71 }