view lisp/float-sup.el @ 5000:44d7bde26046

fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-07 Ben Wing <ben@xemacs.org> * emacs.c (make_argc_argv): Cast to Wexttext * to fix compile error. * nt.c (init_user_info): Cast to CIbyte * to fix compile error. * nt.c (open_unc_volume): To fix compile error, store pathname into an Extbyte * variable then write into the dest, casting to LPTSTR. * emacs.c (debug_can_access_memory): * fileio.c (Fmake_temp_name): * fileio.c (a_write): * fns.c: * fns.c (check_losing_bytecode): * fns.c (plists_differ): * fns.c (internal_equal_trapping_problems): * fns.c (base64_value_to_char): * fns.c (base64_conversion_error): * fns.c (STORE_BYTE): * fns.c (vars_of_fns): * lisp.h: * nt.c (init_user_info): * nt.c (mswindows_readdir): * nt.c (mswindows_executable_type): Replace raw `char *' or `unsigned char *' with characterized type -- Rawbyte, Binbyte, Boolbyte, Ibyte or Ascbyte. This should fix at least one real bug -- in a_write(), the "speedy insert" code that checks for an unchanged region declared the file data read in as char[] but then compared the value to an Ichar. Hence, any chars in the range 128-255 would always appear changed -- in particular, this algorithm would fail completely with binary data.
author Ben Wing <ben@xemacs.org>
date Sun, 07 Feb 2010 05:21:40 -0600
parents 576fb035e263
children 308d34e9f07d
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;;; 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