Copy small array from cyclical queue

Question

Hi,
I would like to know how to create a small array from a bigger one when the bigger one is cyclical. The problem is that i'm copying the values with Arrays.copyOfRange(array,from,to) until I end up to the final of the queue where it falls in a ArrayIndexOutOfBoundsException
Example:
cyclical_queue: [ 34 23 2 3 4 5]
if small_array has to be [4 5 34] i cannot use copyOfRange since it would end up in Arrays.copyOfRange(cyclical_queue,4,1) -> ArrayIndexOutOfBoundsException
P.S. I am trying to do it without loops since performance is important in my program
Thanks in advance for any help,
Rodo

Answer 1

Rodo1983 wrote:
I would like to know how to create a small array from a bigger one when the bigger one is cyclical. The problem is that i'm copying the values with Arrays.copyOfRange(array,from,to) until I end up to the final of the queue where it falls in a ArrayIndexOutOfBoundsExceptionYou can't use Arrays.copyOfRange for this if the array you're copying wraps around the end of the queue.
P.S. I am trying to do it without loops since performance is important in my programDon't bother. Looping isn't inefficient, and besides, I'm almost positive Array.copyOfRange() uses loops. Just start copying at the beginning index, wrapping to zero if you get to the end, and stop when you get to the ending index.