Function: calcFunc-dnonzero

calcFunc-dnonzero is an autoloaded and byte-compiled function defined in calc-arith.el.gz.

Signature

(calcFunc-dnonzero EXPR)

Source Code

;; Defined in /usr/src/emacs/lisp/calc/calc-arith.el.gz
(defun calcFunc-dnonzero (expr)
  (let ((signs (math-possible-signs expr)))
    (if (memq signs '(1 4 5 8 9 12 13)) 1
      (if (eq signs 2) 0
	(math-reject-arg expr 'nonzerop 'quiet)))))