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

[redi at gcc dot gnu.org]

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

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEW
                 CC|                            |jason at gcc dot gnu.org
          Component|libstdc++                   |c++
      Known to fail|4.8.4                       |4.8.1

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The errors started with r196733, the library code didn't change.

namespace std
{
  template<typename _CharT>
    class basic_ostream
    {
    public:
      basic_ostream&
      operator<<(basic_ostream& (*__pf)(basic_ostream&))
      {
        return __pf(*this);
      }
    };

  typedef basic_ostream<char> ostream;

  template<typename _CharT>
    inline basic_ostream<_CharT>&
    endl(basic_ostream<_CharT>& __os)
    { return __os; }
}

template<class T> struct foo {
    T f();
    void g(T);
};
template<class T> void operator<<(const T&, const foo<T>&) {}

struct x : public std::ostream
{
  virtual void flush() = 0;
};

void bar(x& os)
{
  os << std::endl;
}