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Cconst

Cconstp

Recognizer for cconst structures.

Signature
(cconstp x) → *

Definitions and Theorems

Function: cconstp

(defun cconstp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'cconstp))
    (declare (ignorable __function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x)
                                 '(prefix? cchars)))
              :exec (fty::alist-with-carsp x '(prefix? cchars)))
         (b* ((prefix? (cdr (std::da-nth 0 x)))
              (cchars (cdr (std::da-nth 1 x))))
           (and (cprefix-optionp prefix?)
                (c-char-listp cchars))))))

Theorem: consp-when-cconstp

(defthm consp-when-cconstp
  (implies (cconstp x) (consp x))
  :rule-classes :compound-recognizer)