c++ question

[whatever]

Here's a couple of links that might help:

General operator overloading:
http://www.codersource.net/cpp_overloading.html

Stream operator overloading:
http://www.codersource.net/cpp_stream_operators.html

BTW, I hate cygwin. I just make my machine dual boot with windows/linux. I only use windows when I have too. It pretty easy to install either red hat or suse onto a windows box. I'd recommend doing that instead of using cygwin.