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Address

Change-address

Modifying constructor for address structures.

Syntax

(change-address x 
                [:number <number>])

This is an often useful alternative to make-address.

We construct a new address 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-address

(defmacro change-address (x &rest args)
  (std::change-aggregate 'address
                         x args '((:number . address->number))
                         'change-address
                         'nil))