Comparing character sets

cmpcs.m

#import <Foundation/Foundation.h>

int main(int argc, char **argv) {
	@autoreleasepool {
		NSCharacterSet *charactersInWord = [NSCharacterSet characterSetWithCharactersInString:@"secretagogue"];
		NSMutableCharacterSet *guessedCharacters = [NSMutableCharacterSet characterSetWithCharactersInString:@""];
		[guessedCharacters addCharactersInString:@"s"];
		[guessedCharacters addCharactersInString:@"e"];
		[guessedCharacters addCharactersInString:@"c"];
		[guessedCharacters addCharactersInString:@"r"];
		//[guessedCharacters addCharactersInString:@"e"];
		[guessedCharacters addCharactersInString:@"t"];
		[guessedCharacters addCharactersInString:@"a"];
		[guessedCharacters addCharactersInString:@"g"];
		[guessedCharacters addCharactersInString:@"o"];
		//[guessedCharacters addCharactersInString:@"g"];
		[guessedCharacters addCharactersInString:@"u"];
		//[guessedCharacters addCharactersInString:@"e"];

		//Fun bonus variant: Uncomment the above lines and see what result you get then.

		//Fun bonus variant #2: Uncomment either or both of the following lines instead.
		//charactersInWord = [NSCharacterSet characterSetWithBitmapRepresentation:[charactersInWord bitmapRepresentation]];
		//guessedCharacters = [NSMutableCharacterSet characterSetWithBitmapRepresentation:[guessedCharacters bitmapRepresentation]];

		//Fun bonus variant #3: Uncomment the following line.
		//[guessedCharacters formIntersectionWithCharacterSet:guessedCharacters];

		NSLog(@"%@", [guessedCharacters isEqual:charactersInWord] ? @"YES": @"NO");
	}
	return EXIT_SUCCESS;
}

cmpcs.out

2012-07-22 12:24:19.948 cmpcs[22579:707] NO