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    • Symbol-value-option-none

    Change-symbol-value-option-none

    Modifying constructor for symbol-value-option-none structures.

    Syntax
    (change-symbol-value-option-none x 
                                     ) 
    

    This is an often useful alternative to make-symbol-value-option-none.

    We construct a new symbol-value-option-none 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-symbol-value-option-none

    (defmacro change-symbol-value-option-none (x &rest args)
      (std::change-aggregate 'symbol-value-option-none
                             x args 'nil
                             'change-symbol-value-option-none
                             'nil))