gcc/testsuite/g++.dg/cpp0x/variadic122.C

   1 // PR c++/52043
   2 // { dg-do compile { target c++11 } }
   3 // { dg-options "-Wreturn-type" }
   4
   5 template < class T > struct Container
   6 {
   7   T f ();
   8 };
   9
  10 template < class T >
  11 T deref (T)
  12 {}                              // { dg-bogus "no return" }
  13
  14 template < class T, class ... Args >
  15 auto deref (T u, int, Args ... args)->decltype (deref (u.f (), args ...))
  16 {}                              // { dg-warning "no return" }
  17
  18 void
  19 foo ()
  20 {
  21   Container < Container < int > > v;
  22   deref (v, 2);
  23 }