Divide an array of Obj-C objects into an arbitrary amount of smaller arrays.

DMArrayDivide

void DMArrayDivide(NSArray **slices, NSArray *inArray, NSUInteger parts) {
	if (parts == 0 || parts == 1) {
		*slices = inArray;
		return;
	}
	NSMutableArray *arrays = [NSMutableArray arrayWithCapacity:parts];
	for (int i = 0; i < parts; i++) {
		arrays[i] = @[].mutableCopy;
	}
	long int idx = 0;
	for (id object in inArray) {
		[arrays[idx] addObject:object];
		idx = (idx + 1) % parts;
	}
	*slices = arrays;
}