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_istream
14 // : virtual public basic_ios<charT,traits>
15 // {
16 // public:
17 // // types (inherited from basic_ios (27.5.4)):
18 // typedef charT char_type;
19 // typedef traits traits_type;
20 // typedef typename traits_type::int_type int_type;
21 // typedef typename traits_type::pos_type pos_type;
22 // typedef typename traits_type::off_type off_type;
23
24 #include <istream>
25 #include <type_traits>
26
main()27 int main()
28 {
29 static_assert((std::is_base_of<std::basic_ios<char>, std::basic_istream<char> >::value), "");
30 static_assert((std::is_same<std::basic_istream<char>::char_type, char>::value), "");
31 static_assert((std::is_same<std::basic_istream<char>::traits_type, std::char_traits<char> >::value), "");
32 static_assert((std::is_same<std::basic_istream<char>::int_type, std::char_traits<char>::int_type>::value), "");
33 static_assert((std::is_same<std::basic_istream<char>::pos_type, std::char_traits<char>::pos_type>::value), "");
34 static_assert((std::is_same<std::basic_istream<char>::off_type, std::char_traits<char>::off_type>::value), "");
35 }
36