//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <istream>

// template <class charT, class traits = char_traits<charT> >
// class basic_istream;

// basic_istream(basic_istream const& rhs) = delete;
// basic_istream& operator=(basic_istream const&) = delete;

#include <istream>
#include <type_traits>
#include <cassert>

struct test_istream
    : public std::basic_istream<char>
{
    typedef std::basic_istream<char> base;

    test_istream(test_istream&& s)
        : base(std::move(s)) // OK
    {
    }

    test_istream& operator=(test_istream&& s) {
      base::operator=(std::move(s)); // OK
      return *this;
    }

    test_istream(test_istream const& s)
        : base(s) // expected-error {{call to deleted constructor of 'std::basic_istream<char>'}}
    {
    }

    test_istream& operator=(test_istream const& s) {
      base::operator=(s); // expected-error {{call to deleted member function 'operator='}}
      return *this;
    }

};

int main(int, char**)
{
  return 0;
}