Can't write wstring with Russian characters to file

Question

I'm trying to write wstrings (in Russian) in Linux, in C++ code in the following code:

ofstream outWFile;
outWFile.open("input.tab");
outWFile<< WStringToString(w->get_form());
outWFile<<"\t";
outWFile<<WStringToString(w->get_tag());

std::string WStringToString(const std::wstring& s)
{
    std::string temp(s.length(),' ');
    std::copy(s.begin(), s.end(), temp.begin());
    return temp;
}

input.tab contents are invalid

I have tried to do what is proposed in stackoverflow including Unable to write a std::wstring into wofstream However I didn't help. Thank you in advance

Answer 1

Your conversion function is at fault: it will end up messing up all characters that have a code point of 128/256 or larger (depending on your locale).

Use wcstombs instead (make sure to use a UTF-8 locale).

Answer 2

I think you will be better using directly the wstring content.

outWfile.write(w->get_tag()->data(), w->get_tag()->size()*sizeof(wchar_t));
// I used data() assuming the string and wstring methods are the same?
// Anyhow, get the pointer to wstring's data here.