1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03
10 
11 // <ostream>
12 
13 // template <class charT, class traits = char_traits<charT> >
14 // class basic_ostream;
15 
16 // basic_ostream& operator=(basic_ostream&& rhs);
17 
18 #include <ostream>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 
23 
24 template <class CharT>
25 struct testbuf
26     : public std::basic_streambuf<CharT>
27 {
testbuftestbuf28     testbuf() {}
29 };
30 
31 template <class CharT>
32 struct test_ostream
33     : public std::basic_ostream<CharT>
34 {
35     typedef std::basic_ostream<CharT> base;
test_ostreamtest_ostream36     test_ostream(testbuf<CharT>* sb) : base(sb) {}
37 
operator =test_ostream38     test_ostream& operator=(test_ostream&& s)
39         {base::operator=(std::move(s)); return *this;}
40 };
41 
42 
main(int,char **)43 int main(int, char**)
44 {
45     {
46         testbuf<char> sb1;
47         testbuf<char> sb2;
48         test_ostream<char> os1(&sb1);
49         test_ostream<char> os2(&sb2);
50         os2 = (std::move(os1));
51         assert(os1.rdbuf() == &sb1);
52         assert(os1.tie() == 0);
53         assert(os1.fill() == ' ');
54         assert(os1.rdstate() == os1.goodbit);
55         assert(os1.exceptions() == os1.goodbit);
56         assert(os1.flags() == (os1.skipws | os1.dec));
57         assert(os1.precision() == 6);
58         assert(os1.getloc().name() == "C");
59         assert(os2.rdbuf() == &sb2);
60         assert(os2.tie() == 0);
61         assert(os2.fill() == ' ');
62         assert(os2.rdstate() == os2.goodbit);
63         assert(os2.exceptions() == os2.goodbit);
64         assert(os2.flags() == (os2.skipws | os2.dec));
65         assert(os2.precision() == 6);
66         assert(os2.getloc().name() == "C");
67     }
68     {
69         testbuf<wchar_t> sb1;
70         testbuf<wchar_t> sb2;
71         test_ostream<wchar_t> os1(&sb1);
72         test_ostream<wchar_t> os2(&sb2);
73         os2 = (std::move(os1));
74         assert(os1.rdbuf() == &sb1);
75         assert(os1.tie() == 0);
76         assert(os1.fill() == ' ');
77         assert(os1.rdstate() == os1.goodbit);
78         assert(os1.exceptions() == os1.goodbit);
79         assert(os1.flags() == (os1.skipws | os1.dec));
80         assert(os1.precision() == 6);
81         assert(os1.getloc().name() == "C");
82         assert(os2.rdbuf() == &sb2);
83         assert(os2.tie() == 0);
84         assert(os2.fill() == ' ');
85         assert(os2.rdstate() == os2.goodbit);
86         assert(os2.exceptions() == os2.goodbit);
87         assert(os2.flags() == (os2.skipws | os2.dec));
88         assert(os2.precision() == 6);
89         assert(os2.getloc().name() == "C");
90     }
91 
92   return 0;
93 }
94