Unless there is a lot of creative abuse of operator overloading or macros lurking in there that code really doesn't look too awful compared to some monstrosities I've had to work with.
I agree. At first glance, I thought that the NbrofA/AA/etc names were just gibberish. The most nonsensical part to me is starting the for-loop iterator at zero, and then only executing the function if the iterator is non-zero.
Hm, did you check that each loop worked with its own loop variable? If not, how do you _know_ it does what you think it does?
If you code like this, you will have to be paranoid with each line you read. That is what makes such code bad, even if it does what it appears to do at first sight.
