https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69939
Bug ID: 69939
Summary: Ambiguous forward in experimental/tuple
Product: gcc
Version: 5.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: padhi at cs dot ucla.edu
Target Milestone: ---
In the line 57 of gcc/libstdc++-v3/include/experimental/tuple (from
gcc-5-branch), `forward` should be `std::forward`:
```
template <typename _Fn, typename _Tuple, std::size_t... _Idx>
constexpr decltype(auto)
__apply_impl(_Fn&& f, _Tuple&& t, std::index_sequence<_Idx...>)
{ return std::forward<_Fn>(f)(get<_Idx>(forward<_Tuple>(t))...); }
```
(https://github.com/gcc-mirror/gcc/blob/gcc-5-branch/libstdc%2B%2B-v3/include/experimental/tuple#L57)
