The C++ standard library type std::wofstream is a specialized std::wostream which uses a std::wfilebuf to write wide chars or wide strings to a file.
This is C++ std file output stream for data which has wide characters.
Questions tagged [wofstream]
70 questions
0
votes
0 answers
std::wofstream gets broken in binary mode in GCC but works in MSVC
The following piece of code produces a file with a single byte when compiled in MSVC, but when compiled by GCC 8.3 it produces an empty file.
std::wofstream out("tmpUTF16BrokenBOMFile.txt", std::ios_base::binary);
const wchar_t c = 0xFE;
// Both…
Ibraim Ganiev
- 8,934
- 3
- 33
- 52
0
votes
0 answers
Writing with std::string and std::wstring objects to the same file
I would like to know if writing to the same file with std::string and std::wstring objects is safe for sure. I have a snippet like this:
void foo(std::string&& msg) {
std::ofstream file{ "log.txt", std::ios_base::app };
file << msg <<…
Evelekk
- 159
- 7
0
votes
0 answers
C++ Write unicode (wchar_t) char by char to a file results in empty file
So, I need to read a unicode file first, then transform it using Huffman's algorithm (effectively compress it) and write it to a new file.
Reason for unicode is special chars like hyphen - the longer dash and other - without unicode, reading and…
dodancs
- 357
- 1
- 5
- 15
0
votes
0 answers
Why does wofstream output stop at a certain point
I am trying to write into a file wchar_t(s) from value 0 to max (FFFF or 65,535). The process is successful but when I opened the output file it ended at value 256 with no symbol. Why does this happen?
I've tried making the program sleep and instead…
Silverous Black
- 40
- 7
0
votes
1 answer
Failing to find a wchar_t that is present in a std::wstring
I was playing with std::wstring and std::wfstream, when I encountered a strange behaviour. Namely, it appears that std::basic_string::find fails to find certain characters. Consider the following code:
int main()
{
std::wifstream…
Fureeish
- 12,533
- 4
- 32
- 62
0
votes
1 answer
c++ wcout stops outputting, also wofstream stops outputting after some calls
I tried to output contents to a file
std::locale::global(std::locale());
std::wofstream file(outfilename , std::wofstream::binary);
for (const auto & j : grid[0]) {
try {
std::wcout << L"String in WideString " <<…
nabz_32x
- 3
- 2
0
votes
0 answers
std::wofstream failing to write long long
I have two streams, one to read from and one to write to (diff. files).
std::wofstream origin;
std::wifstream attach;
origin.open(m_SourceFile, std::ios_base::app | std::ios_base::binary);
attach.open(csAttachFilename, std::ios_base::in |…
User9123
- 53
- 7
0
votes
1 answer
C++ Cannot instantiate codecvt for writing unicode in txt file
Hell0,
i need to write a text file (csv file in facts, but nvm) supporting unicode with c++.
The source code i have to modify already works great, but only support ANSI.
It's working with a wofstream :
std::wofstream x;
CString stringToWrite;
/*
…
Spychopat
- 1
- 2
0
votes
1 answer
Runtime check failure #2 C/C++
I have encountered a problem in my program that has me somewhat stumped. I had a program that was working fine (it was working fine on VS 2010 this is not an I upgraded to .NET and this error started happening post) with a program that is mostly c…
njvb
- 1,377
- 3
- 18
- 36
0
votes
1 answer
Type of UTF-16 encoding, using wofstream in Windows
Recently, I want to write a text file in unicode (UTF-16) under Windows.
By refering to http://www.codeproject.com/KB/stl/upgradingstlappstounicode.aspx, here is the code I am applying.
When I use Notepad to open up the document, here is the…
Cheok Yan Cheng
- 47,586
- 132
- 466
- 875
0
votes
2 answers
c++ wofstream issue in unicode program
Using unicode compile in vs2008
How do you output many language characters to a file in C++ with wofstream?
I can do it in C code no problem e.g.
FILE *out;
if( (out = _wfopen( L"test.txt", L"wb" )) != NULL )
{
fwprintf(out,L"test\r\n");
…
user3725395
- 145
- 2
- 13
0
votes
1 answer
C++ Unresolved external symbol when using wofstream
I am compiling and linking this source code from a batch file and the libraries that I am importing right now are MSVCRT.LIB Kernel32.lib User32.lib
The code works until I include string iostream and fstream and create some wofstream objects. That's…
ali
- 10,927
- 20
- 89
- 138
0
votes
1 answer
Ustring error (during printing)
I want to parse UTF-8 file to ustring, I read this file in str.
There is an error:
terminate called after throwing an instance of 'Glib::ConvertError'.
What should I do?
char* cs = (char*) malloc(sizeof(char) * str.length());
strcpy(cs,…
user1635327
0
votes
1 answer
Writing class object to file using streams
I have this code to serialize/deserialize class objects to file, and it seems to work.
However, I have two questions.
What if instead two wstring's (as I have now) I want to have one wstring and one string member
variable in my class? (I think in…
pseudonym_127
- 357
- 7
- 16
0
votes
1 answer
Transactional File Saving in standard C++
Is it possible to implement transactional file saving in standard C++ without using system specific API calls like CopyFile, ReplaceFile, CreateFile etc.
Currently I am doing it as follows (using Win32 API specific code):
void TransactionalFileSave(…
Thomas Russell
- 5,870
- 4
- 33
- 68