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G-cons

Make-g-cons

Basic constructor macro for g-cons structures.

Syntax

(make-g-cons [:car <car>] 
             [:cdr <cdr>])

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

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

Definition

This is an ordinary make- macro introduced by defprod.

Macro: make-g-cons

(defmacro make-g-cons (&rest args)
  (std::make-aggregate 'g-cons
                       args '((:car) (:cdr))
                       'make-g-cons
                       nil))

Function: g-cons

(defun g-cons (car cdr)
  (declare (xargs :guard (and (fgl-object-p car)
                              (fgl-object-p cdr))))
  (declare (xargs :guard t))
  (let ((__function__ 'g-cons))
    (declare (ignorable __function__))
    (b* ((car (mbe :logic (fgl-object-fix car)
                   :exec car))
         (cdr (mbe :logic (fgl-object-fix cdr)
                   :exec cdr)))
      (cons car cdr))))