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[LastPoet]

So, since cout doesn't return and simply spits things out to standard output, it will give you a prompt each loop.

std::cout should always return the std::ostream& of itself. It is used to concatenate ostream operations like:

std:: cout << something << another_thing << one_other_thing << std::endl;

Yep, instead of adding a carriage return and line feed when cout-ing, one should use std::endl. It's more portable code and flushes the stream, making it safer, thread wise.

Lets say I have a class called LastPoet, and I wanted to overload the ostream operator to print whatever that class does into whatever cout is defined to do (usually console out). I needed to declare inside the class declaration:

friend std::ostream& operator<<(std::ostream& out, const LastPoet& obj); // that return is usefull, but not to boolean evaluation