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Statement-for

Change-statement-for

Modifying constructor for statement-for structures.

Syntax

(change-statement-for x 
                      [:init <init>] 
                      [:test <test>] 
                      [:update <update>] 
                      [:body <body>])

This is an often useful alternative to make-statement-for.

We construct a new statement-for 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-statement-for

(defmacro change-statement-for (x &rest args)
  (std::change-aggregate 'statement-for
                         x args
                         '((:init . statement-for->init)
                           (:test . statement-for->test)
                           (:update . statement-for->update)
                           (:body . statement-for->body))
                         'change-statement-for
                         'nil))