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))
(cond ((not x) (b* nil t))
(t (b* ((fty::val x)) (filep fty::val)))))
