and other best pracitces like:
capacity and "index" are ints and not unsigned int (google's recomendation).
It is easier to detect underflow bugs like this
plus other minor improvements
Optimized loop of ccArrayGetIndexOfObject to remove the overhead of 3
pointer dereferences per iteration, and pre-increment the int for
speed. If this function is called a lot, and with a large list, this
will result in a good performance win.
This can probably be done with just pointers, but I haven't taken the
time to validate all function calls to make sure it would be
appropriate. Though I can guarantee that if this worked fine before, it
will work fine with this change.