Basic constructor macro for reference-value-null structures.
(make-reference-value-null )
This is the usual way to construct reference-value-null structures. It simply conses together a structure with the specified fields.
This macro generates a new reference-value-null structure from scratch. See also change-reference-value-null, which can "change" an existing structure, instead.
This is an ordinary
Macro:
(defmacro make-reference-value-null (&rest args) (std::make-aggregate 'reference-value-null args 'nil 'make-reference-value-null nil))
Function:
(defun reference-value-null nil (declare (xargs :guard t)) (let ((__function__ 'reference-value-null)) (declare (ignorable __function__)) (cons :null (list))))