public boolean isOutOfBounds(int lowValidIx, int highValidIx) {if(_offset < lowValidIx) {return true;}if(getLastIndex() > highValidIx) {return true;}return false;}
public bool IsOutOfBounds(int lowValidIx, int highValidIx){if (_offset < lowValidIx){return true;}if (LastIndex > highValidIx){return true;}return false;}