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Tree-list-tuple3

Change-tree-list-tuple3

Modifying constructor for tree-list-tuple3 structures.

Syntax

(change-tree-list-tuple3 x 
                         [:1st <1st>] 
                         [:2nd <2nd>] 
                         [:3rd <3rd>])

This is an often useful alternative to make-tree-list-tuple3.

We construct a new tree-list-tuple3 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 fty::defprod.

Macro: change-tree-list-tuple3

(defmacro change-tree-list-tuple3 (x &rest args)
  (std::change-aggregate 'tree-list-tuple3
                         x args
                         '((:1st . tree-list-tuple3->1st)
                           (:2nd . tree-list-tuple3->2nd)
                           (:3rd . tree-list-tuple3->3rd))
                         'change-tree-list-tuple3
                         'nil))