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, c++11, c++14
10 // UNSUPPORTED: c++filesystem-disabled
11 
12 // <fstream>
13 
14 // plate <class charT, class traits = char_traits<charT> >
15 // class basic_ofstream
16 
17 // explicit basic_ofstream(const filesystem::path& s, ios_base::openmode mode = ios_base::out);
18 
19 #include <fstream>
20 #include <filesystem>
21 #include <cassert>
22 #include "test_macros.h"
23 #include "platform_support.h"
24 
25 namespace fs = std::filesystem;
26 
27 int main(int, char**) {
28   fs::path p = get_temp_file_name();
29   {
30     static_assert(!std::is_convertible<fs::path, std::ofstream>::value,
31                   "ctor should be explicit");
32     static_assert(std::is_constructible<std::ofstream, fs::path const&,
33                                         std::ios_base::openmode>::value,
34                   "");
35   }
36   {
37     std::ofstream stream(p);
38     stream << 3.25;
39   }
40   {
41     std::ifstream stream(p);
42     double x = 0;
43     stream >> x;
44     assert(x == 3.25);
45   }
46   {
47     std::ifstream stream(p, std::ios_base::out);
48     double x = 0;
49     stream >> x;
50     assert(x == 3.25);
51   }
52   std::remove(p.c_str());
53   {
54     std::wofstream stream(p);
55     stream << 3.25;
56   }
57   {
58     std::wifstream stream(p);
59     double x = 0;
60     stream >> x;
61     assert(x == 3.25);
62   }
63   {
64     std::wifstream stream(p, std::ios_base::out);
65     double x = 0;
66     stream >> x;
67     assert(x == 3.25);
68   }
69   std::remove(p.c_str());
70 
71   return 0;
72 }
73