Function: error--p
error--p is a byte-compiled function defined in subr.el.gz.
Signature
(error--p OBJECT)
Documentation
Return non-nil if OBJECT looks like a valid error descriptor.
Source Code
;; Defined in /usr/src/emacs/lisp/subr.el.gz
(defun error--p (object)
"Return non-nil if OBJECT looks like a valid error descriptor."
(let ((type (car-safe object)))
(and type (symbolp type) (listp (cdr object))
(error-type-p type))))