Updates to internals.texi -------------------- ChangeLog entries follow: -------------------- man/ChangeLog addition: 2010-03-04 Ben Wing <ben@xemacs.org> * internals/internals.texi (Top): * internals/internals.texi (list-to-texinfo): Removed. * internals/internals.texi (convert-list-to-texinfo): New. * internals/internals.texi (table-to-texinfo): Removed. * internals/internals.texi (convert-table-to-texinfo): New. Update Lisp functions at top to newest versions. * internals/internals.texi (A History of Emacs): * internals/internals.texi (Through Version 18): * internals/internals.texi (Lucid Emacs): * internals/internals.texi (XEmacs): * internals/internals.texi (The XEmacs Split): * internals/internals.texi (Modules for Other Aspects of the Lisp Interpreter and Object System): * internals/internals.texi (Introduction to Writing C Code): * internals/internals.texi (Writing Good Comments): * internals/internals.texi (Writing Macros): * internals/internals.texi (Major Textual Changes): * internals/internals.texi (Great Integral Type Renaming): * internals/internals.texi (How to Regression-Test): * internals/internals.texi (Creating a Branch): * internals/internals.texi (Dynamic Arrays): * internals/internals.texi (Allocation by Blocks): * internals/internals.texi (mark_object): * internals/internals.texi (gc_sweep): * internals/internals.texi (Byte-Char Position Conversion): * internals/internals.texi (Searching and Matching): * internals/internals.texi (Introduction to Multilingual Issues #3): * internals/internals.texi (Byte Types): * internals/internals.texi (Different Ways of Seeing Internal Text): * internals/internals.texi (Buffer Positions): * internals/internals.texi (Basic internal-format APIs): * internals/internals.texi (The DFC API): * internals/internals.texi (General Guidelines for Writing Mule-Aware Code): * internals/internals.texi (Mule-izing Code): * internals/internals.texi (Locales): * internals/internals.texi (More about code pages): * internals/internals.texi (More about locales): * internals/internals.texi (Unicode support under Windows): * internals/internals.texi (The Frame): * internals/internals.texi (The Non-Client Area): * internals/internals.texi (The Client Area): * internals/internals.texi (The Paned Area): * internals/internals.texi (Text Areas): * internals/internals.texi (The Displayable Area): * internals/internals.texi (Event Queues): * internals/internals.texi (Event Stream Callback Routines): * internals/internals.texi (Focus Handling): * internals/internals.texi (Future Work -- Autodetection): Replace " with ``, '' (not complete, maybe about halfway through).

;;; float-sup.el --- detect absence of floating-point support in XEmacs runtime

;; Copyright (C) 1985-7, 1997 Free Software Foundation, Inc.

;; Maintainer: FSF
;; Keywords: internal, dumped

;; This file is part of XEmacs.

;; XEmacs is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to the Free
;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
;; 02111-1307, USA.

;;; Synched up with: FSF 19.34.

;;; Code:

;; This file is dumped with XEmacs.

;; 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.

;; XEmacs change
(or (featurep 'lisp-float-type)
    (error "Floating point was disabled at compile time"))

;; 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...)")

;; 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")
(defconst radians-to-degrees (/ 180.0 pi)
  "Radian to degree conversion constant")

;; these expand to a single multiply by a float when byte compiled

(defmacro degrees-to-radians (x)
  "Convert ARG from degrees to radians."
  (list '* (/ pi 180.0) x))
(defmacro radians-to-degrees (x)
  "Convert ARG from radians to degrees."
  (list '* (/ 180.0 pi) x))

;; Provided in C code in XEmacs
;; (provide 'lisp-float-type)

;;; float-sup.el ends here