Selection Array Sorting Method - C#

selection.cs

static int[] SelectionSort(int[] inputArray)
{
    int[] outputArray = inputArray;
    int temp, smallest;
    for (int i = 0; i < ARRAY_SIZE; i++)
    {
        smallest = i;
        for (int j = i + 1; j < ARRAY_SIZE; j++)
        {
            if (outputArray[j] < outputArray[smallest])
            {
                smallest = j;
            }
        }
        temp = outputArray[smallest];
        outputArray[smallest] = outputArray[i];
        outputArray[i] = temp;
    }
    return outputArray;
}