gcc/testsuite/gdc.test/fail_compilation/fail302.d

   1 /*
   2 TEST_OUTPUT:
   3 ---
   4 fail_compilation/fail302.d(23): Error: cannot implicitly convert expression `1` of type `int` to `Bar`
   5 fail_compilation/fail302.d(23):        `bar = 1` is the first assignment of `bar` therefore it represents its initialization
   6 fail_compilation/fail302.d(23):        `opAssign` methods are not used for initialization, but for subsequent assignments
   7 ---
   8 */
   9
  10 struct Bar
  11 {
  12     uint num;
  13
  14     Bar opAssign(uint otherNum)
  15     {
  16         num = otherNum;
  17         return this;
  18     }
  19 }
  20
  21 void main()
  22 {
  23     Bar bar = 1;        // disallow because construction is not assignment
  24     auto x = bar.num;
  25 }