Testing NSString compare:options:range: with a prefix range that is equal in both strings

gistfile1.m

#import <Foundation/Foundation.h>

//References:
//	http://stackoverflow.com/q/13918360/30461
//	http://lists.apple.com/archives/carbon-dev/2005/Aug/msg00525.html
//I ported this code to Objective-C/NSString.

int main(int argc, char *argv[]) {
	@autoreleasepool {
		NSString *string1 = @"http://idisk.mac.com/";
		NSString *string2 = @"http://idisk.mac.com/ktam2/";
		NSUInteger shortLength = [string1 length];
		NSComparisonResult result1 = [string1 compare:string2
			options:0
			range:(NSRange){ 0, shortLength }];
		NSLog(@"%ld", result1);
		NSComparisonResult result2 = [string2 compare:string1
					options:0
					range:(NSRange){ 0, shortLength }];
		NSLog(@"%ld", result2);
	}
}

Untitled.out

2012-12-17 21:27:34.211 Untitled[10696:707] -1
2012-12-17 21:27:34.219 Untitled[10696:707] 0