Support for standard streams in Qt?

Question

Qt

I create a simple C++ project in Qt, I include the iostream.h library, and then I want to overload the "<<" operation on an object of the ostream class, but it doesn't work. Qt doesn't even see that such a class exists. I included iostream.h, so the istream and ostream classes must be defined? What's the matter?

Answer 1

Program text and error text?
I believe that after all std::istream and std::ostream.

Answer 2

and in Qt iostream is connected as <iostream.h>and not <iostream>..?
And of course, don't forget about namespaces.