diff options
Diffstat (limited to 'lisp/emacs-lisp/cl-macs.el')
| -rw-r--r-- | lisp/emacs-lisp/cl-macs.el | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/cl-macs.el b/lisp/emacs-lisp/cl-macs.el index 8673b360319..d3d4524028d 100644 --- a/lisp/emacs-lisp/cl-macs.el +++ b/lisp/emacs-lisp/cl-macs.el @@ -3576,7 +3576,10 @@ Of course, we really can't know that for sure, so it's just a heuristic." ;;;###autoload (defmacro cl-check-type (form type &optional string) "Verify that FORM is of type TYPE; signal an error if not. -STRING is an optional description of the desired type." +STRING is an optional description of the desired type. + +Hint: To check the type of an object, use `cl-type-of'. +To define new types, see `cl-deftype'." (declare (debug (place cl-type-spec &optional stringp))) (and (or (not (macroexp-compiling-p)) (< cl--optimize-speed 3) (= cl--optimize-safety 3)) |