CODEWITHSUNDEEP
c++unicode
Jugal Kishore
Jugal Kishore

Reputation: 33

c++ unicode writing is not working

I am trying to write some Russian unicode text in file by wfstream. Following piece of code has been used for it.

wfstream myfile;
locale AvailLocale("Russian");

myfile.imbue(AvailLocale);

myfile.open(L"d:\\example.txt",ios::out);
if (myfile.is_open()) 
{ 
    myfile << L"доброе утро" <<endl;
} 

myfile.flush();
myfile.close();

Something unrecognizable is written to the file by executing this code, I am using VS 2008.

Upvotes: 1

Views: 1697

Answers (2)

BertR
BertR

Reputation: 1697

If you use std::locale("Russian") the file will be encoded as "Cyrillic (Windows)" (and not some Unicode format) when you use VS2008. If you for example open it with Internet Explorer and change the encoding to Cyrillic (Windows) the characters become visable.

It is more common to store files in some Unicode format.

When I use:

const std::locale AvailLocale
      = std::locale(std::locale("Russian"), new std::codecvt_utf8<wchar_t>());

to store it as UTF-8 and open the file for example in notepad as an UTF-8 file. It see доброе утро

Similarly you can use codecvt_utf16 or some other coding scheme to encode the unicode characters.

codecvt_utf8 is specific for C++11.

Alternatively you can use boost: http://www.boost.org/doc/libs/1_46_0/libs/serialization/doc/codecvt.html Or implement something similar yourself (from looking at http://www.boost.org/doc/libs/1_40_0/boost/detail/utf8_codecvt_facet.hpp it doesn't seem that complicated).

Or this library: http://utfcpp.sourceforge.net/

Upvotes: 1

dreamlax
dreamlax

Reputation: 95315

I don't know much about imbuing locales in C++, but perhaps it isn't working because you're trying to write Cyrillic characters using the Greek locale?

Upvotes: 1

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