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Vttree-branch

Make-vttree-branch

Basic constructor macro for vttree-branch structures.

Syntax

(make-vttree-branch [:left <left>] 
                    [:right <right>])

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

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

Definition

This is an ordinary make- macro introduced by defprod.

Macro: make-vttree-branch

(defmacro make-vttree-branch (&rest args)
  (std::make-aggregate 'vttree-branch
                       args '((:left) (:right))
                       'make-vttree-branch
                       nil))

Function: vttree-branch

(defun vttree-branch (left right)
  (declare (xargs :guard (and (vttree-p left) (vttree-p right))))
  (declare (xargs :guard t))
  (let ((__function__ 'vttree-branch))
    (declare (ignorable __function__))
    (b* ((left (mbe :logic (vttree-fix left)
                    :exec left))
         (right (mbe :logic (vttree-fix right)
                     :exec right)))
      (cons left right))))