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Expression-sum-test

Change-expression-sum-test

Modifying constructor for expression-sum-test structures.

Syntax

(change-expression-sum-test x 
                            [:type <type>] 
                            [:target <target>] 
                            [:alternative <alternative>])

This is an often useful alternative to make-expression-sum-test.

We construct a new expression-sum-test 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-expression-sum-test

(defmacro change-expression-sum-test (x &rest args)
  (std::change-aggregate
       'expression-sum-test
       x args
       '((:type . expression-sum-test->type)
         (:target . expression-sum-test->target)
         (:alternative . expression-sum-test->alternative))
       'change-expression-sum-test
       'nil))