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Fconst

Fconst-kind

Get the kind (tag) of a fconst structure.

Signature
(fconst-kind x) → kind
Arguments: x — Guard (fconstp x).

Definitions and Theorems

Function: fconst-kind$inline

(defun fconst-kind$inline (x)
  (declare (xargs :guard (fconstp x)))
  (let ((__function__ 'fconst-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :dec)) :dec)
                      (t :hex))
         :exec (car x))))

Theorem: fconst-kind-possibilities

(defthm fconst-kind-possibilities
  (or (equal (fconst-kind x) :dec)
      (equal (fconst-kind x) :hex))
  :rule-classes
  ((:forward-chaining :trigger-terms ((fconst-kind x)))))