[Mike Betts]

Both codes will work...

Raven_Writer's code requires two passed parameters at invocation... argc (an integer) and argv(a pointer to an array of characters (also known as a string)). However, neither is used by the function "main".

monsieurcoffee's code is more traditional and correct as a stand alone program. However, he needs to indent his code so that it is more readable... Without indenting, any non-trivial code is very hard to maintain.

Both Matt and djcapelis are correct but (IMHO) Matt's mindset is more correct for this project... C is a subset of C++, however, using C++ for the PIC processor (if you could) would be like hanging a picture with a sledgehammer. It can be done if you are very careful but, chances are, you will hit your thumb a few times quite unnecessarily.

Code for the robot should be simple and elegant with static variable structures. There is absolutely no need for C++ and all the excess baggage it brings with it.