;;; float-sup.el --- detect absence of floating-point support in Emacs runtime
-;; Maintainer: FSF
-;; Last-Modified: 16 Mar 1992
-
;; Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
+;; Maintainer: FSF
+;; Keywords: internal
+
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
;;; Code:
;; Provide a meaningful error message if we are running on
;; bare (non-float) emacs.
-;; Can't test for 'floatp since that may be defined by float-imitation
-;; packages like float.el in this very directory.
(if (fboundp 'atan)
nil
;; provide an easy hook to tell if we are running with floats or not.
;; define pi and e via math-lib calls. (much less prone to killer typos.)
-(defconst pi (* 4 (atan 1)) "The value of Pi (3.1415926...)")
-(defconst e (exp 1) "The value of e (2.7182818...)")
+(defconst pi (* 4 (atan 1)) "The value of Pi (3.1415926...).")
+(defconst e (exp 1) "The value of e (2.7182818...).")
;; Careful when editing this file ... typos here will be hard to spot.
;; (defconst pi 3.14159265358979323846264338327
;; "The value of Pi (3.14159265358979323846264338327...)")
(defconst degrees-to-radians (/ pi 180.0)
- "Degrees to radian conversion constant")
+ "Degrees to radian conversion constant.")
(defconst radians-to-degrees (/ 180.0 pi)
- "Radian to degree conversion constant")
+ "Radian to degree conversion constant.")
;; these expand to a single multiply by a float when byte compiled
HCoop / bpt / emacs.git / blobdiff