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Long-array

Long-arrayp

Recognizer for long-array structures.

Signature
(long-arrayp x) → *

Definitions and Theorems

Function: long-arrayp

(defun long-arrayp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'long-arrayp))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :long-array)
         (true-listp (cdr x))
         (eql (len (cdr x)) 1)
         (b* ((components (std::da-nth 0 (cdr x))))
           (and (long-value-listp components)
                (< (len components) (expt 2 31)))))))

Theorem: consp-when-long-arrayp

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