isSorted method
Checks if the elements of this slice are sorted. That is, for each element a and its following element b, a <= b must hold.
Implementation
bool isSorted() {
for (int i = _start; i < _end - 1; i++) {
if (_list[i].compareTo(_list[i + 1]) > 0) {
return false;
}
}
return true;
}