Mercurial > hg > xemacs-beta
view lisp/special-mode.el @ 5736:3192994c49ca
Convert C (un)signed long long values to bignums properly.
This patch also does the following:
- Uses make_fixnum instead of make_integer when the argument is guaranteed to
be in the fixnum range.
- Introduces make_unsigned_integer so that we handle unsigned values with the
high bit set correctly.
- Introduces conversions between bignums and (un)signed long long values.
- Uses mp_set_memory_functions with the BSD MP code, if it exists.
- Eliminates some unnecessary consing in the Lisp + and * implementations.
- Fixes a problem with check_valid_xbm_inline(). This function is called
during intialization. It calls Ftimes. When using pdump, this is a
problem, because (a) the bignum code is not initialized until *after*
dumping, so we don't try to dump any bignums, and (b) multiplication of
integers is done inside bignums so we handle fixnum overflow correctly. I
decided that an XBM file with dimensions that don't fit into fixnums is
probably not something we want to try to handle anyway, and did the
arithmetic with C values instead of Lisp values. Doing that broke one test,
which started getting a different error message from the one it expected, so
I adjusted the test to match the new reality.
- Fixes a few miscellaneous bugs in the BSD MP code.
See <CAHCOHQk0u0=eD1fUMHTNWi2Yh=1WgiYyCXdMbsGzHBNhdqYz4w@mail.gmail.com> in
xemacs-patches, as well as followup messages.
author | Jerry James <james@xemacs.org> |
---|---|
date | Mon, 17 Jun 2013 10:23:00 -0600 |
parents | dc37764a105b |
children |
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;;; special-mode.el --- Special major mode to view specially formatted data ;; Copyright (C) 2011 Didier Verna <didier@xemacs.org> ;; Maintainer: Didier Verna <didier@xemacs.org> ;; Keywords: 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 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 file is dumped with XEmacs. ;;; Code: ;; This code is imported from GNU Emacs 23.3.1 -- dvl (defvar special-mode-map (let ((map (make-sparse-keymap))) (suppress-keymap map) (define-key map "q" 'quit-window) (define-key map " " 'scroll-up) (define-key map "\C-?" 'scroll-down) (define-key map "?" 'describe-mode) (define-key map ">" 'end-of-buffer) (define-key map "<" 'beginning-of-buffer) (define-key map "g" 'revert-buffer) map)) (put 'special-mode 'mode-class 'special) (define-derived-mode special-mode nil "Special" "Parent major mode from which special major modes should inherit." (setq buffer-read-only t)) ;;; special-mode.el ends here