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G-apply

Change-g-apply

Modifying constructor for g-apply structures.

Syntax

(change-g-apply x 
                [:fn <fn>] 
                [:args <args>])

This is an often useful alternative to make-g-apply.

We construct a new g-apply 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-g-apply

(defmacro change-g-apply (x &rest args)
  (std::change-aggregate 'g-apply
                         x args
                         '((:fn . g-apply->fn)
                           (:args . g-apply->args))
                         'change-g-apply
                         'nil))