Function: 1value

1value is a macro defined in subr.el.gz.

Signature

(1value FORM)

Documentation

Evaluate FORM, expecting a constant return value.

If FORM returns differing values when running under Testcover, Testcover will raise an error.

View in manual

Probably introduced at or before Emacs version 22.1.

Source Code

;; Defined in /usr/src/emacs/lisp/subr.el.gz
(defmacro 1value (form)
  "Evaluate FORM, expecting a constant return value.
If FORM returns differing values when running under Testcover,
Testcover will raise an error."
  (declare (debug t))
  form)