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Character-result

Character-resultp

Recognizer for character-result structures.

Signature
(character-resultp x) → *

Definitions and Theorems

Function: character-resultp

(defun character-resultp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'character-resultp))
    (declare (ignorable __function__))
    (cond ((characterp x)
           (b* ((get x)) (characterp get)))
          (t (b* ((get x)) (fty::reserrp get))))))