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Modifying constructor for command-instruction structures.
(change-command-instruction x
[:get <get>])
This is an often useful alternative to make-command-instruction.
We construct a new command-instruction structure that is a copy of
This is an ordinary
Macro:
(defmacro change-command-instruction (x &rest args) (std::change-aggregate 'command-instruction x args '((:get . command-instruction->get)) 'change-command-instruction 'nil))