xref: /llvm-project/libcxx/test/std/input.output/iostream.format/output.streams/ostream.cons/move.pass.cpp (revision f4c1258d5633fcf06385ff3fd1f4bf57ab971964)
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 // <ostream>
10 
11 // template <class charT, class traits = char_traits<charT> >
12 // class basic_ostream;
13 
14 // basic_ostream(basic_ostream&& rhs);
15 
16 #include <ostream>
17 #include <cassert>
18 
19 #include "test_macros.h"
20 
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 
main(int,char **)41 int main(int, char**)
42 {
43     {
44         testbuf<char> sb;
45         test_ostream<char> os1(&sb);
46         test_ostream<char> os(std::move(os1));
47         assert(os1.rdbuf() == &sb);
48         assert(os.rdbuf() == 0);
49         assert(os.tie() == 0);
50         assert(os.fill() == ' ');
51         assert(os.rdstate() == os.goodbit);
52         assert(os.exceptions() == os.goodbit);
53         assert(os.flags() == (os.skipws | os.dec));
54         assert(os.precision() == 6);
55         assert(os.getloc().name() == "C");
56     }
57 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
58     {
59         testbuf<wchar_t> sb;
60         test_ostream<wchar_t> os1(&sb);
61         test_ostream<wchar_t> os(std::move(os1));
62         assert(os1.rdbuf() == &sb);
63         assert(os.rdbuf() == 0);
64         assert(os.tie() == 0);
65         assert(os.fill() == L' ');
66         assert(os.rdstate() == os.goodbit);
67         assert(os.exceptions() == os.goodbit);
68         assert(os.flags() == (os.skipws | os.dec));
69         assert(os.precision() == 6);
70         assert(os.getloc().name() == "C");
71     }
72 #endif
73 
74   return 0;
75 }
76