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// <fstream>
11
12// template <class charT, class traits = char_traits<charT> >
13// class basic_fstream
14
15// void open(const wchar_t* s, ios_base::openmode mode = ios_base::in|ios_base::out);
16
17#include <fstream>
18#include <cassert>
19#include "platform_support.h"
20
21int main()
22{
23#ifdef _LIBCPP_HAS_OPEN_WITH_WCHAR
24    std::wstring temp = get_wide_temp_file_name();
25    {
26        std::fstream fs;
27        assert(!fs.is_open());
28        fs.open(temp.c_str(), std::ios_base::in | std::ios_base::out
29                                        | std::ios_base::trunc);
30        assert(fs.is_open());
31        double x = 0;
32        fs << 3.25;
33        fs.seekg(0);
34        fs >> x;
35        assert(x == 3.25);
36    }
37    _wremove(temp.c_str());
38    {
39        std::wfstream fs;
40        assert(!fs.is_open());
41        fs.open(temp.c_str(), std::ios_base::in | std::ios_base::out
42                                        | std::ios_base::trunc);
43        assert(fs.is_open());
44        double x = 0;
45        fs << 3.25;
46        fs.seekg(0);
47        fs >> x;
48        assert(x == 3.25);
49    }
50    _wremove(temp.c_str());
51#endif
52}
53