gcc/testsuite/gdc.test/fail_compilation/fail7173.d

   1 /*
   2 TEST_OUTPUT:
   3 ---
   4 fail_compilation/fail7173.d(23): Error: expression `b1._a.opBinary(b2._a).fun()` is `void` and has no value
   5 ---
   6 */
   7 struct A{
   8
   9   A opBinary(string op)(A a){ A rt; return rt; }
  10
  11   void fun(){ }
  12 }
  13
  14 struct B{
  15
  16   A _a;
  17   alias _a this;
  18 }
  19
  20
  21 void main(){
  22
  23   B b1, b2, b3; b3 = (b1 - b2).fun();
  24 }