view lisp/site-load.el @ 5911:48386fd60fd0

GMP functions that take doubles choke on non-finite values, avoid that. src/ChangeLog addition: 2015-05-10 Aidan Kehoe <kehoea@parhasard.net> * floatfns.c (double_to_integer): Rename this from float_to_int to fit our newer, bignum-compatible terminology. GMP can signal SIGFPE when asked to turn NaN or infinity into a bignum, and we're not prepared to handle that signal if the OS float library routines don't do that, so check for those values explicitly. * floatfns.c (ceiling_two_float): * floatfns.c (ceiling_one_float): * floatfns.c (floor_two_float): * floatfns.c (floor_one_float): * floatfns.c (round_two_float): * floatfns.c (round_one_float): * floatfns.c (truncate_two_float): * floatfns.c (truncate_one_float): Call double_to_integer() with its new name. * number.c: Don't use the {bignum,ratio,bigfloat}_set_double functions directly here, with GMP they can choke when handed non-finite C doubles, call Ftruncate() and the new float_to_bigfloat() from floatfns.c. Maybe we should extend number-gmp.c with GMP-specific implementations that check for non-finite values. tests/ChangeLog addition: 2015-05-10 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el: Backslash a few parentheses in the first column for the sake of fontification. * automated/lisp-tests.el: Check that the rounding functions signal Lisp errors correctly when handed positive and negative infinity and NaN.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 10 May 2015 19:07:09 +0100
parents b9167d522a9a
children
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;;; site-load.el --- Template file for site-wide XEmacs customization
;; Copyright (C) 1997 Free Software Foundation, Inc.

;; Author: Steven L. Baur <steve@xemacs.org>
;; Keywords: internal

;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This is a prototype site-load.el file.
;; The site-load.el mechanism is provided so XEmacs installers can easily
;; dump lisp packages with XEmacs that do not get dumped standardly.

;; The file `site-packages' if it exists should look something like:
;; (setq site-load-packages '(
;; "../lisp/modes/cc-mode.elc"
;; "../lisp/utils/redo.elc"
;; "../lisp/packages/scroll-in-place.elc"
;; )
;; )

;; The first line and the last line must be exact.  Each of the packages
;; listed must be double quoted, have either an absolute path, or a relative
;; to the build src directory path *and* be bytecompiled prior to the attempt
;; to dump.  They also must explicitly have the .elc extension.

;; Because this is a trial implementation and the file is shared with
;; make-docfiles, syntax is strict and unforgiving.  So sue me.  It
;; is still better than the way it used to be.

;; Also note that site-packages belongs in the top level directory not the
;; lisp directory for use with --srcdir configurations.

;;; Code:
(defvar site-load-package-file "../site-packages"
  "File name containing the list of extra packages to dump with XEmacs.")
(defvar site-load-packages nil
  "A list of .elc files that should be dumped with XEmacs.
This variable should be set by `site-load-package-file'.")

;; Load site specific packages for dumping with the XEmacs binary.
(when (file-exists-p site-load-package-file) 
  (let ((file))
    (load site-load-package-file t t t)
    ;; The `pureload' macro is provided as a clue that a package is
    ;; being loaded in preparation of being dumped into XEmacs.
    (defmacro pureload (file)
      (list 'prog1 (list 'load file) '(garbage-collect)))
    (message "Loading site-wide packages for dumping...")
    (while site-load-packages
      (setq file (car site-load-packages))
      (pureload file)
      (setq site-load-packages (cdr site-load-packages)))
    (message "Loading site-wide packages for dumping...done")
    (fmakunbound 'pureload)))

;; This file is intended for end user additions.
;; Put other initialization here, like setting of language-environment, etc.
;; Perhaps this should really be in the site-init.el.

;;; site-load.el ends here