sortRange method

*<Null safety>*

void sortRange (int start, int end, int compare(E a, E b))

Implementation

void sortRange(int start, int end, int Function(E a, E b) compare) {
  if (source.length != _initialSize) {
    throw ConcurrentModificationError(source);
  }
  source.sortRange(start, end, compare);
}