How to write a std::string to a UTF-8 text file

Question

I just want to write some few simple lines to a text file in C++, but I want them to be encoded in UTF-8. What is the easiest and simple way to do so?

Answer 1

std::wstring text = L"Привет";
QString qstr = QString::fromStdWString(text);
QByteArray byteArray(qstr.toUtf8());    
std::string str_std( byteArray.constData(), byteArray.length());