Mercurial > hg > xemacs-beta
view lisp/special-mode.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 | 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