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File

Change-file

Modifying constructor for file structures.

Syntax

(change-file x 
             [:declons <declons>])

This is an often useful alternative to make-file.

We construct a new file 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-file

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