		Search-engine friendly clone of the ACL2 documentation.

Value-null

Make-value-null

Basic constructor macro for value-null structures.

Syntax

(make-value-null )

This is the usual way to construct value-null structures. It simply conses together a structure with the specified fields.

This macro generates a new value-null structure from scratch. See also change-value-null, which can "change" an existing structure, instead.

Definition

This is an ordinary make- macro introduced by fty::defprod.

Macro: make-value-null

(defmacro make-value-null (&rest args)
  (std::make-aggregate 'value-null
                       args 'nil
                       'make-value-null
                       nil))

Function: value-null

(defun value-null nil
  (declare (xargs :guard t))
  (let ((__function__ 'value-null))
    (declare (ignorable __function__))
    (cons :null (list))))