iPhone dev Stupidity 49: Reverse a string

If you don't want to rewrite one, check this:

-(NSString *) reverseString
{
  NSMutableString *reversedStr;
  int len = [self length];
 
  // Auto released string
  reversedStr = [NSMutableString stringWithCapacity:len];     
 
  // Probably woefully inefficient...
  while (len > 0)
    [reversedStr appendString:
         [NSString stringWithFormat:@"%C", [self characterAtIndex:--len]]];   
 
  return reversedStr;
}