Deleting duplicates in NSMutableArray
Deleting duplicates in NSMutableArray
- Subject: Deleting duplicates in NSMutableArray
- From: Johan Kool <email@hidden>
- Date: Mon, 5 Jul 2004 00:04:58 +0200
Hi all,
I am a bit stuck with this piece of code that has to remove duplicate
NSStrings from a NSMutableArray. It fails when multiple duplicates come
right after each other in the array. It has to do something with
shifting indexes when an object is deleted, but can't think of how to
solve it.
// Delete duplicates
for (i=0; i < [mutArray count]; i++ ) {
for (j=(i+1); j < [mutArray count]; j++) {
if ([[mutArray objectAtIndex:i] isEqualTo:[mutArray
objectAtIndex:j]]) {
[mutArray removeObjectAtIndex:j];
}
}
}
What do I do wrong?!
Thanks already!
Johan
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