Hi Derek,

The range argument only applies to the receiver of the message.
So, with your first example, you're comparing @"a" against @"ac".

Aki

On 2010/10/05, at 2:48, Derek Huby wrote:

> This method isn't doing what I expect it to do (which probably means that I'm 
> expecting the wrong thing.)
> 
> //=====================================================
> NSRange range = NSMakeRange(0,1);
>       
> NSString *s1 = @"ab";
> NSString *s2 = @"ac";
>       
> //Just compare the first character
> NSComparisonResult result1 = [s1 compare:s2 options:NSLiteralSearch 
> range:range locale:[NSLocale currentLocale]];
> NSLog(@"Result 1 = %d", result1);
> 
> //Now swap the order of the strings
> NSComparisonResult result2 = [s2 compare:s1 options:NSLiteralSearch 
> range:range locale:[NSLocale currentLocale]];
> NSLog(@"Result 2 = %d", result2);
> //=====================================================
> 
> I get a result of -1 both times. Since we are only comparing the first 
> character, shouldn't the result be 0?
> 
> Thanks for any illumination,
> 
> Derek Huby
> 
> 
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