[Interest] Is it safe to use QString::utf16() as a Windows wchar_t*?

[Nikos Chantziaras]

On Windows, I use this:

   void func(const wchar_t*);
   QString s;

   // ...

   func(reinterpret_cast<const wchar_t*>(s.utf16()));

This saves an allocation, a copy and a free since I don't have to use 
QString::toWCharArray(). However, is this actually safe? "It seems to 
work," and AFAIK, QString::d->data() is already in the format and 
encoding Windows excepts a wchar_t* to be. Is this correct?