/**
* @param mixed $key
* @param integer $begin
* @param integer|null &$insertIndex
*
* @return integer|null
*/
private function binarySearch($key, $begin = 0, &$insertIndex = null)
{
$comparator = $this->comparator;
return Collection::binarySearch($this->elements, array($key, null), function ($lhs, $rhs) use($comparator) {
return call_user_func($comparator, $lhs[0], $rhs[0]);
}, $begin, null, $insertIndex);
}
/**
* @param mixed $element
* @param integer $begin
* @param integer|null &$insertIndex
*
* @return integer|null
*/
private function binarySearch($element, $begin = 0, &$insertIndex = null)
{
return Collection::binarySearch($this->elements, $element, $this->comparator, $begin, null, $insertIndex);
}
