Nyquist / XLISP 2.0  - 
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subsetp
  | Type: | - | Lisp function (closure) | 
  | Source: | - | xm.lsp | 
Syntax
- (subsetp list1 list2)
- listN - a list of symbols or numbers
 returns -  T  if list1 is a subset of list2, NIL otherwise
 
In Nyquist, 'subsetp' is implemented as a Lisp function:
(defun subsetp (a b)
  (let ((result t))
    (dolist (elem a)
      (cond ((not (member elem b))
             (setf result nil)
             (return nil))))
    result))
Description
The 'subsetp' function tests if all elements of 'list1' are
contained in 'list2'.
Examples
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Nyquist / XLISP 2.0  - 
Contents |
Tutorials |
Examples |
Reference