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Pointer-null

Make-pointer-null

Basic constructor macro for pointer-null structures.

Syntax

(make-pointer-null )

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

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

Definition

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

Macro: make-pointer-null

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

Function: pointer-null

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