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File-option

File-optionp

Recognizer for file-option structures.

Signature
(file-optionp x) → *

Definitions and Theorems

Function: file-optionp

(defun file-optionp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'file-optionp))
    (declare (ignorable __function__))
    (cond ((not x) (b* nil t))
          (t (b* ((fty::val x)) (filep fty::val))))))