Iphone: reverse an array

In iphone sdk no way to reverse an array.

So to solve this problem, we just implement the small function.

Like below: use as it is.

- (NSMutableArray *)reverseArray:(NSMutableArray *)arr{

NSUInteger i = 0;

NSUInteger j = [arr count] - 1;

while (i < j) {

[arr exchangeObjectAtIndex:i withObjectAtIndex:j];

i++;

j--;

}

 return arr;

}

that retain you array with reverse value.