From the way I was tought things, function programming is synonymous with procedural programming.

As for the "complexities" of operator overloading and pre-processor commands, I consider those complexities, because if you overload an operator, and you are developing a large application, the operator overloading can be lost in the lines, and become a serious source of frustration - something I've experienced in the past, and which has led me to keep away from C and C++. As for pre-processor commands, I just don't see a point for them aside from incorporating header files.

I'm a Lisp (primarily), Python, Perl, Java, BASIC, Expect and shell programmer by trade, and am learning Linux-based x86 assembly - all languages which have no imminent focus on pre-processor calls.

I know I didn't provide a complete definition of Object-Oriented Programming, but I got the ball rolling, and provided the OP with a direct link to information (Wikipedia), instead of just a "just google it" response.

Lisp is object-oriented, but not forcefully object-oriented, like Java. :cheesy: Not to mention, Lisp prides itself on not locking itself down to one solution per problem.