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Maybe-4vec-none

Change-maybe-4vec-none

Modifying constructor for maybe-4vec-none structures.

Syntax

(change-maybe-4vec-none x 
                        )

This is an often useful alternative to make-maybe-4vec-none.

We construct a new maybe-4vec-none 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-maybe-4vec-none

(defmacro change-maybe-4vec-none (x &rest args)
  (std::change-aggregate 'maybe-4vec-none
                         x args 'nil
                         'change-maybe-4vec-none
                         'nil))