objective c, NSMutableArray: indexOfObject

Question

int k = 0;
k = [myArray  indexOfObject:_endNode];

I only have a few objects added to the array and _endNode isn't one of them.

I expect my k value to be -1. But, my k on the second line gives me a value of 21787887.

Answer 1

It's actually NSNotFound, which is defined as NSIntegerMax.

This, by the way, is quite explicit in the documentation.