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Vl-string

Vl-string-p

Recognizer for vl-string structures.

Signature
(vl-string-p x) → *

Definitions and Theorems

Function: vl-string-p

(defun vl-string-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'vl-string-p))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :vl-string)
         (b* ((value (cdr x)))
           (stringp value)))))

Theorem: consp-when-vl-string-p

(defthm consp-when-vl-string-p
  (implies (vl-string-p x) (consp x))
  :rule-classes :compound-recognizer)

Subtopics

Vl-fast-string-p: Faster version of vl-string-p, given that vl-atomguts-p is already known.