Function: derived-mode-p

derived-mode-p is a byte-compiled function defined in subr.el.gz.

Signature

(derived-mode-p &rest MODES)

Documentation

Non-nil if the current major mode is derived from one of MODES.

Uses the derived-mode-parent property of the symbol to trace backwards.

Probably introduced at or before Emacs version 27.1.

Aliases

epa--derived-mode-p (obsolete since 28.1)

Source Code

;; Defined in /usr/src/emacs/lisp/subr.el.gz
(defun derived-mode-p (&rest modes)
  "Non-nil if the current major mode is derived from one of MODES.
Uses the `derived-mode-parent' property of the symbol to trace backwards."
  (apply #'provided-mode-derived-p major-mode modes))