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Jliteral-null

Change-jliteral-null

Modifying constructor for jliteral-null structures.

Syntax

(change-jliteral-null x 
                      )

This is an often useful alternative to make-jliteral-null.

We construct a new jliteral-null 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-jliteral-null

(defmacro change-jliteral-null (x &rest args)
  (std::change-aggregate 'jliteral-null
                         x args 'nil
                         'change-jliteral-null
                         'nil))