		Search-engine friendly clone of the ACL2 documentation.

Vl-distitem

Change-vl-distitem

Modifying constructor for vl-distitem structures.

Syntax

(change-vl-distitem x 
                    [:left <left>] 
                    [:right <right>] 
                    [:type <type>] 
                    [:weight <weight>])

This is an often useful alternative to make-vl-distitem.

We construct a new vl-distitem structure that is a copy of x, except that you can explicitly change some particular fields. Any fields you don't mention just keep their values from x.

Definition

This is an ordinary change- macro introduced by defprod.

Macro: change-vl-distitem

(defmacro change-vl-distitem (x &rest args)
  (std::change-aggregate 'vl-distitem
                         x args
                         '((:left . vl-distitem->left)
                           (:right . vl-distitem->right)
                           (:type . vl-distitem->type)
                           (:weight . vl-distitem->weight))
                         'change-vl-distitem
                         'remake-vl-distitem))