[Bug c++/46394] [C++0X] [4.6 Regression] no matching function with default template parameter

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46394

--- Comment #2 from Marc Glisse <marc.glisse at normalesup dot org> 2010-12-17 
20:04:18 UTC ---
Note that if I change the function to:

        template<class...U,class=
                typename std::enable_if<
                !std::is_same<
                std::tuple<U&&...>,
                void
                        >::value
                        >::type
                        >
                        A(U&&...u) ;

I get:

sorry, unimplemented: use of 'type_pack_expansion' in template