[cfe-dev] Function accepting rvalue and lvalue references

[Michael Lehn]

Assume I have some templated class

   template <typename T>
   struct Dummy {
       // ...
   };

and that I want to overload a fucntion 'foo' such that it accepts a lvalue or
rvalue reference of it.  I can do this using some 'IsDummy trait' as follows:

   template <typename A>
   std::enable_if<IsDummy<A>::value, void>
   foo(A &&dummy)
   {
       // ....
   }

So this is not the problem.  However, I somehow think that for some time a function
like

   template <typename A>
   void
   foo(Dummy<A> &&dummy)
   {
       // ....
   }

was capturing both, lvalue and rvalue reference.  Does my memory trick me?  Was it
a compiler bug (I am not sure whether I was using gcc or clang)?

Cheers,

Michael