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Byte-value

Change-byte-value

Modifying constructor for byte-value structures.

Syntax

(change-byte-value x 
                   [:int <int>])

This is an often useful alternative to make-byte-value.

We construct a new byte-value 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-byte-value

(defmacro change-byte-value (x &rest args)
  (std::change-aggregate 'byte-value
                         x args '((:int . byte-value->int))
                         'change-byte-value
                         'nil))