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 // <sstream>
11 
12 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
13 // class basic_ostringstream
14 
15 // basic_ostringstream& operator=(basic_ostringstream&& rhs);
16 
17 #include <sstream>
18 #include <cassert>
19 
main()20 int main()
21 {
22 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
23     {
24         std::ostringstream ss0(" 123 456");
25         std::ostringstream ss;
26         ss = std::move(ss0);
27         assert(ss.rdbuf() != 0);
28         assert(ss.good());
29         assert(ss.str() == " 123 456");
30         int i = 234;
31         ss << i << ' ' << 567;;
32         assert(ss.str() == "234 5676");
33     }
34     {
35         std::wostringstream ss0(L" 123 456");
36         std::wostringstream ss;
37         ss = std::move(ss0);
38         assert(ss.rdbuf() != 0);
39         assert(ss.good());
40         assert(ss.str() == L" 123 456");
41         int i = 234;
42         ss << i << ' ' << 567;;
43         assert(ss.str() == L"234 5676");
44     }
45 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
46 }
47