Question

cout is an object of the ostream class.
Also, when we write:

filebuf   objFileBuf;
objFileBuf.open ("test.txt", ios :: out);

ostream objOstream (&objFileBuf);
objOstream << "Test sentence\n";

objFileBuf.close();

the text gets written to the file.

How to specify the “console” as a file to write through ostream?

Answer 1

You can do this:

ostream objOstream (cout.rdbuf());
objOstream << "Test sentence goes to console\n";

Or you can do this:

ostream & objOstream = cout;
objOstream << "Test sentence goes to console\n";

The second one doesn’t work with streambuf, rather you just create a reference to the std::cout, and use the reference.