public int Compare(ISeq <A> x, ISeq <A> y)
{
if (ReferenceEquals(x, y))
{
return(0);
}
if (ReferenceEquals(x, null))
{
return(-1);
}
if (ReferenceEquals(y, null))
{
return(1);
}
var enumx = x.GetEnumerator();
var enumy = y.GetEnumerator();
while (true)
{
bool r1 = enumx.MoveNext();
bool r2 = enumy.MoveNext();
if (!r1 && !r2)
{
return(0);
}
if (!r1)
{
return(-1);
}
if (!r2)
{
return(1);
}
var cmp = default(ORD).Compare(enumx.Current, enumy.Current);
if (cmp != 0)
{
return(cmp);
}
}
}
public IEnumerator <T> GetEnumerator()
{
return(innerSeq.GetEnumerator());
}
public override IEnumerator <U> GetEnumerator() => seq.GetEnumerator().Select(fn);
public override IEnumerator <T> GetEnumerator() => seq.GetEnumerator().Skip(start).Take(count);
