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 // <ostream>
11 
12 // template <class charT, class traits = char_traits<charT> >
13 // class basic_ostream;
14 
15 // basic_ostream(basic_ostream&& rhs);
16 
17 #include <ostream>
18 #include <cassert>
19 
20 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
21 
22 template <class CharT>
23 struct testbuf
24     : public std::basic_streambuf<CharT>
25 {
testbuftestbuf26     testbuf() {}
27 };
28 
29 template <class CharT>
30 struct test_ostream
31     : public std::basic_ostream<CharT>
32 {
33     typedef std::basic_ostream<CharT> base;
test_ostreamtest_ostream34     test_ostream(testbuf<CharT>* sb) : base(sb) {}
35 
test_ostreamtest_ostream36     test_ostream(test_ostream&& s)
37         : base(std::move(s)) {}
38 };
39 
40 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
41 
main()42 int main()
43 {
44 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
45     {
46         testbuf<char> sb;
47         test_ostream<char> os1(&sb);
48         test_ostream<char> os(std::move(os1));
49         assert(os1.rdbuf() == &sb);
50         assert(os.rdbuf() == 0);
51         assert(os.tie() == 0);
52         assert(os.fill() == ' ');
53         assert(os.rdstate() == os.goodbit);
54         assert(os.exceptions() == os.goodbit);
55         assert(os.flags() == (os.skipws | os.dec));
56         assert(os.precision() == 6);
57         assert(os.getloc().name() == "C");
58     }
59     {
60         testbuf<wchar_t> sb;
61         test_ostream<wchar_t> os1(&sb);
62         test_ostream<wchar_t> os(std::move(os1));
63         assert(os1.rdbuf() == &sb);
64         assert(os.rdbuf() == 0);
65         assert(os.tie() == 0);
66         assert(os.fill() == L' ');
67         assert(os.rdstate() == os.goodbit);
68         assert(os.exceptions() == os.goodbit);
69         assert(os.flags() == (os.skipws | os.dec));
70         assert(os.precision() == 6);
71         assert(os.getloc().name() == "C");
72     }
73 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
74 }
75