Category Function to reverse NSString

NSString Reverse

@interface NSString (reverse)
-(NSString *) reverseString;
@end


@implementation NSString (reverse)

-(NSString *) reverseString
{
NSMutableString *reversedStr;
int len = [selflength];

// Auto released string
reversedStr = [NSMutableStringstringWithCapacity:len];     

// Probably woefully inefficient...
while (len > 0)
[reversedStr appendString:
         [NSStringstringWithFormat:@"%C", [selfcharacterAtIndex:--len]]];   

return reversedStr;
}

@end