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// <ios>
11
12// template <class charT, class traits> class basic_ios
13
14// basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr);
15
16#include <ios>
17#include <cassert>
18
19int main()
20{
21    std::ios ios(0);
22    std::ostream* os = (std::ostream*)1;
23    std::ostream* r = ios.tie(os);
24    assert(r == 0);
25    assert(ios.tie() == os);
26}
27