public static bool IsOneElementRange <T>(InputIterator <T> first, InputIterator <T> last)
{
first = IteratorUtil.Clone(first);
first.MoveNext();
return(first.Equals(last));
}
public static RandomAccessIterator <T> AdvanceCopy <T>(RandomAccessIterator <T> iter, int distance)
{
iter = IteratorUtil.Clone(iter);
Advance(iter, distance);
return(iter);
}
public static ListIterator <T> AdvanceCopy <T>(ListIterator <T> iter, int distance)
{
iter = IteratorUtil.Clone(iter);
Advance(iter, distance);
return(iter);
}
public static BidirectionalIterator <T> AdvanceCopy <T>(BidirectionalIterator <T> iter, int distance)
{
iter = IteratorUtil.Clone(iter);
Advance(iter, distance);
return(iter);
}