blob: 90cd5611701bded9c813142e015828c568bcce0b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <fstream>
// template <class charT, class traits = char_traits<charT> >
// class basic_fstream
// void open(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out);
#include <fstream>
#include <cassert>
#include "platform_support.h"
int main(int, char**)
{
std::string temp = get_temp_file_name();
{
std::fstream fs;
assert(!fs.is_open());
fs.open(temp, std::ios_base::in | std::ios_base::out
| std::ios_base::trunc);
assert(fs.is_open());
double x = 0;
fs << 3.25;
fs.seekg(0);
fs >> x;
assert(x == 3.25);
}
std::remove(temp.c_str());
{
std::wfstream fs;
assert(!fs.is_open());
fs.open(temp, std::ios_base::in | std::ios_base::out
| std::ios_base::trunc);
assert(fs.is_open());
double x = 0;
fs << 3.25;
fs.seekg(0);
fs >> x;
assert(x == 3.25);
}
std::remove(temp.c_str());
return 0;
}
|
