[Bug libstdc++/69116] [4.9/5/6 Regression] compile error when including valarray

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69116

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
It is trying to instantiate one of the std::end with valarray<x>
Like:
  template<class _Tp>
    inline const _Tp*
    end(const valarray<_Tp>& __va)
    { return std::__addressof(__va[0]) + __va.size(); }

This does not look right.