C++ Convert string (or char*) to wstring (or wchar_t*)

Question

string s = \"おはよう\";
wstring ws = FUNCTION(s, ws);

How would i assign the contents of s to ws?

Searched google and used some techniques but

Answer 1

If you have QT and if you are lazy to implement a function and stuff you can use

std::string str;
QString(str).toStdWString()