gcc/testsuite/g++.dg/torture/pr56768.C

   1 // { dg-do compile }
   2 // { dg-options "-std=c++0x" }
   3
   4 struct Iter
   5 {
   6   int& operator* ();
   7   void operator++ ();
   8 };
   9
  10 bool operator!= (Iter &, Iter &) { }
  11
  12 struct Container
  13 {
  14   Iter begin () const;
  15   Iter end () const;
  16 };
  17
  18 struct J
  19 {
  20   virtual J *mutable_child ();
  21 };
  22
  23 struct M
  24 {
  25   M (const Container &);
  26   J ns_;
  27 };
  28 namespace
  29 {
  30   J MakeNamespace (const Container &src)
  31     {
  32       J a;
  33       J *b = 0;
  34       for (const int &c: src)
  35         b = b ? b->mutable_child () : &a;
  36       return a;
  37     }
  38 }
  39 M::M (const Container &ns):ns_ (MakeNamespace (ns))
  40 {
  41 }