public static IEnumerable <T> EnumerateRange <T>(
this ISequenceView <T> sequenceView,
int startIndex,
int rangeCount)
{
if (sequenceView == null)
{
throw new ArgumentNullException(nameof(sequenceView));
}
using (IEnumerator <T> enumerator = sequenceView.GetEnumerator(startIndex, rangeCount)) {
while (enumerator.MoveNext())
{
yield return(enumerator.Current);
}
}
}
public IEnumerator <T> GetEnumerator()
=> thisStartIndex < 0
? collection.GetEnumerator()
: collection.GetEnumerator(thisStartIndex, thisRangeCount);
