how to convert a range to NSArray in Objective-C

Question

I know how to do it in Ruby, converting a range of numbers to an array. But how is it possible in Objective-C?

Ruby: (1..100).to_a

Answer 1

You've got to do it manually:

// Assuming you've got a "NSRange range;"
NSMutableArray *array = [NSMutableArray array];
for (NSUInteger i = range.location; i < range.location + range.length; i++) {
    [array addObject:[NSNumber numberWithUnsignedInteger:i]];
}

Answer 2

You might want to try NSIndexSet instead.

NSIndexSet *indexSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(1, 100)];