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Value-group

Change-value-group

Modifying constructor for value-group structures.

Syntax

(change-value-group x 
                    [:get <get>])

This is an often useful alternative to make-value-group.

We construct a new value-group 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-value-group

(defmacro change-value-group (x &rest args)
  (std::change-aggregate 'value-group
                         x args '((:get . value-group->get))
                         'change-value-group
                         'nil))