CODEWITHSUNDEEP
objective-ccocoansarrayenumeration
Kenny Winker
Kenny Winker

Reputation: 12107

Sort/Enumerate an NSArray from somewhere in the middle?

I have an NSArray, with objects ordered like so:

I would like to enumerate through this array in this order:

i.e. starting at some point that is not the beginning, but hitting all the items.

I imagine this is a matter of sorting first and then enumerating the array, but I'm not sure if that's the best technique... or, frankly, how to sort the array like this.

Edit

Adding details: These will be relatively small arrays, varying from 3 to 10 objects. No concurrent access. I'd like to permanently alter the sort order of the array each time I do this operation.

Upvotes: 0

Views: 340

Answers (1)

Marcelo Cantos
Marcelo Cantos

Reputation: 185988

NSUInteger n = arr.count;
for (NSUInteger i = 0; i < n; ++i) {
    id e = [arr objectAtIndex:(start + i)%n];
    // ...
}

Upvotes: 1

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