Enumerate Objects Using Block

gistfile1.txt

- (void)enumerateObjectsUsingBlock:(void (^)(id obj, NSUInteger idx, BOOL *stop))block {

    NSParameterAssert(block != NULL);

    NSUInteger idx = 0;

    for(id obj in self) {
            BOOL stop = NO;

            block(obj, idx++, &stop);

            if(stop) {
                break;
            }
        }
    }
}

I assume you meant obj instead of id check in the if statement, but non the less it's not necessary as you won't have nils inside an NSArray :)

oh shit, of course, damn insomnia =)
I must say, I am pedantic sometimes to check potentially risky things. But pre-optimization often is a evil ;)
Thanks!