File: variadic122.C

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gcc-arm-none-eabi 15%3A8-2019-q3-1
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// PR c++/52043
// { dg-do compile { target c++11 } }
// { dg-options "-Wreturn-type" }

template < class T > struct Container
{
  T f ();
};

template < class T >
T deref (T)
{}				// { dg-bogus "no return" }

template < class T, class ... Args >
auto deref (T u, int, Args ... args)->decltype (deref (u.f (), args ...))
{}				// { dg-warning "no return" }

void
foo ()
{
  Container < Container < int > > v;
  deref (v, 2);
}