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• Lex-numbers

Vl-read-unsigned-number

unsigned_number ::= decimal_digit { _ | decimal_digit }.

Signature

(vl-read-unsigned-number echars) → (mv prefix remainder)

Arguments

echars — Guard (vl-echarlist-p echars).

Embedded spaces are not allowed.

Definitions and Theorems

Function: vl-read-unsigned-number$inline

(defun vl-read-unsigned-number$inline (echars)
  (declare (xargs :guard (vl-echarlist-p echars)))
  (let ((__function__ 'vl-read-unsigned-number))
    (declare (ignorable __function__))
    (if (or (atom echars)
            (not (vl-decimal-digit-echar-p (car echars))))
        (mv nil echars)
      (vl-read-while-underscore-or-decimal-digit echars))))

Theorem: prefix-of-vl-read-unsigned-number

(defthm prefix-of-vl-read-unsigned-number
 (and
  (true-listp (mv-nth 0 (vl-read-unsigned-number echars)))
  (implies
      (force (vl-echarlist-p echars))
      (vl-echarlist-p (mv-nth 0 (vl-read-unsigned-number echars)))))
 :rule-classes
 ((:rewrite)
  (:type-prescription
       :corollary
       (true-listp (mv-nth 0 (vl-read-unsigned-number echars))))))

Theorem: remainder-of-vl-read-unsigned-number

(defthm remainder-of-vl-read-unsigned-number
 (and
  (equal (true-listp (mv-nth 1 (vl-read-unsigned-number echars)))
         (true-listp echars))
  (implies
      (force (vl-echarlist-p echars))
      (vl-echarlist-p (mv-nth 1 (vl-read-unsigned-number echars)))))
 :rule-classes
 ((:rewrite)
  (:type-prescription
   :corollary
   (implies
        (true-listp echars)
        (true-listp (mv-nth 1 (vl-read-unsigned-number echars)))))))

Theorem: append-of-vl-read-unsigned-number

(defthm append-of-vl-read-unsigned-number
  (equal (append (mv-nth 0 (vl-read-unsigned-number echars))
                 (mv-nth 1 (vl-read-unsigned-number echars)))
         echars))

Theorem: no-change-loser-of-vl-read-unsigned-number

(defthm no-change-loser-of-vl-read-unsigned-number
  (implies (not (mv-nth 0 (vl-read-unsigned-number echars)))
           (equal (mv-nth 1 (vl-read-unsigned-number echars))
                  echars)))

Theorem: acl2-count-of-vl-read-unsigned-number-weak

(defthm acl2-count-of-vl-read-unsigned-number-weak
  (<= (acl2-count (mv-nth 1 (vl-read-unsigned-number echars)))
      (acl2-count echars))
  :rule-classes ((:rewrite) (:linear)))

Theorem: acl2-count-of-vl-read-unsigned-number-strong

(defthm acl2-count-of-vl-read-unsigned-number-strong
  (implies
       (mv-nth 0 (vl-read-unsigned-number echars))
       (< (acl2-count (mv-nth 1 (vl-read-unsigned-number echars)))
          (acl2-count echars)))
  :rule-classes ((:rewrite) (:linear)))

Subtopics

Vl-read-unsigned-number-prefix/remainder-thms

Prefix and remainder theorems for vl-read-unsigned-number, automatically generated by def-prefix/remainder-thms.