1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <istream>
11
12// template <class charT, class traits = char_traits<charT> >
13// class basic_iostream :
14//     public basic_istream<charT,traits>,
15//     public basic_ostream<charT,traits>
16// {
17// public:
18//     // types:
19//     typedef charT                          char_type;
20//     typedef traits                         traits_type;
21//     typedef typename traits_type::int_type int_type;
22//     typedef typename traits_type::pos_type pos_type;
23//     typedef typename traits_type::off_type off_type;
24
25#include <istream>
26#include <type_traits>
27
28int main()
29{
30    static_assert((std::is_base_of<std::basic_istream<char>, std::basic_iostream<char> >::value), "");
31    static_assert((std::is_base_of<std::basic_ostream<char>, std::basic_iostream<char> >::value), "");
32    static_assert((std::is_same<std::basic_iostream<char>::char_type, char>::value), "");
33    static_assert((std::is_same<std::basic_iostream<char>::traits_type, std::char_traits<char> >::value), "");
34    static_assert((std::is_same<std::basic_iostream<char>::int_type, std::char_traits<char>::int_type>::value), "");
35    static_assert((std::is_same<std::basic_iostream<char>::pos_type, std::char_traits<char>::pos_type>::value), "");
36    static_assert((std::is_same<std::basic_iostream<char>::off_type, std::char_traits<char>::off_type>::value), "");
37}
38