xref: /llvm-project/libcxx/test/std/input.output/file.streams/fstreams/fstream.assign/move_assign.pass.cpp (revision 7fc6a55688c816f5fc1a5481ae7af25be7500356)
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++98, c++03
10 
11 // <fstream>
12 
13 // template <class charT, class traits = char_traits<charT> >
14 // class basic_fstream
15 
16 // basic_fstream& operator=(basic_fstream&& rhs);
17 
18 #include <fstream>
19 #include <cassert>
20 #include "test_macros.h"
21 #include "platform_support.h"
22 
23 int main(int, char**)
24 {
25     std::string temp = get_temp_file_name();
26     {
27         std::fstream fso(temp.c_str(), std::ios_base::in | std::ios_base::out
28                                                  | std::ios_base::trunc);
29         std::fstream fs;
30         fs = move(fso);
31         double x = 0;
32         fs << 3.25;
33         fs.seekg(0);
34         fs >> x;
35         assert(x == 3.25);
36     }
37     std::remove(temp.c_str());
38     {
39         std::wfstream fso(temp.c_str(), std::ios_base::in | std::ios_base::out
40                                                   | std::ios_base::trunc);
41         std::wfstream fs;
42         fs = move(fso);
43         double x = 0;
44         fs << 3.25;
45         fs.seekg(0);
46         fs >> x;
47         assert(x == 3.25);
48     }
49     std::remove(temp.c_str());
50 
51   return 0;
52 }
53