Function: TAIL

Documentation

Returns the last HOW-MANY elements of the sequence SEQ. HOW-MANY is greater than (length SEQ) then all of SEQ is returned.

Source

(defun tail (seq &optional (how-many 1))
  "Returns the last HOW-MANY elements of the sequence SEQ. HOW-MANY is
  greater than (length SEQ) then all of SEQ is returned."
  (let ((seq-length (length seq)))
    (cond
      ((<= 0 how-many seq-length)
       (subseq seq (- seq-length how-many)))
      ((< seq-length how-many)
       (copy-seq seq))
      (t ; (< how-many 0)
       (head seq (- how-many))))))