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// <strstream>
11
12// class istrstream
13//     : public basic_istream<char>
14// {
15//     ...
16
17#include <strstream>
18#include <type_traits>
19
20int main()
21{
22    static_assert((std::is_base_of<std::istream, std::istrstream>::value), "");
23}
24