Mercurial > hg > xemacs-beta
annotate lisp/cus-file.el @ 4678:b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
lisp/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (ceiling*, floor*, round*, truncate*):
Implement these in terms of the C functions; mark them as
obsolete.
(mod*, rem*): Use #'nth-value with the C functions, not #'nth with
the CL emulation functions.
man/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* lispref/numbers.texi (Bigfloat Basics):
Correct this documentation (ignoring for the moment that it breaks
off in mid-sentence).
tests/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test the new Common Lisp-compatible rounding functions available in
C.
(generate-rounding-output): Provide a function useful for
generating the data for the rounding functions tests.
src/ChangeLog addition:
2009-08-11 Aidan Kehoe <kehoea@parhasard.net>
* floatfns.c (ROUNDING_CONVERT, CONVERT_WITH_NUMBER_TYPES)
(CONVERT_WITHOUT_NUMBER_TYPES, MAYBE_TWO_ARGS_BIGNUM)
(MAYBE_ONE_ARG_BIGNUM, MAYBE_TWO_ARGS_RATIO)
(MAYBE_ONE_ARG_RATIO, MAYBE_TWO_ARGS_BIGFLOAT)
(MAYBE_ONE_ARG_BIGFLOAT, MAYBE_EFF, MAYBE_CHAR_OR_MARKER):
New macros, used in the implementation of the rounding functions.
(ceiling_two_fixnum, ceiling_two_bignum, ceiling_two_ratio)
(ceiling_two_bigfloat, ceiling_one_ratio, ceiling_one_bigfloat)
(ceiling_two_float, ceiling_one_float, ceiling_one_mundane_arg)
(floor_two_fixnum, floor_two_bignum, floor_two_ratio)
(floor_two_bigfloat, floor_one_ratio, floor_one_bigfloat)
(floor_two_float, floor_one_mundane_arg, round_two_fixnum)
(round_two_bignum_1, round_two_bignum, round_two_ratio)
(round_one_bigfloat_1, round_two_bigfloat, round_one_ratio)
(round_one_bigfloat, round_two_float, round_one_float)
(round_one_mundane_arg, truncate_two_fixnum)
(truncate_two_bignum, truncate_two_ratio, truncate_two_bigfloat)
(truncate_one_ratio, truncate_one_bigfloat, truncate_two_float)
(truncate_one_float, truncate_one_mundane_arg):
New functions, used in the implementation of the rounding
functions.
(Fceiling, Ffloor, Fround, Ftruncate, Ffceiling, Fffloor)
(Ffround, Fftruncate):
Revise to fully support Common Lisp conventions. This means:
-- All functions have optional DIVISOR arguments
-- All functions return multiple values; see #'values
-- All functions do their arithmetic with the correct number types
according to the contamination rules.
-- #'round and #'fround always round towards the even number
in ambiguous cases.
* doprnt.c (emacs_doprnt_1):
* number.c (internal_coerce_number):
Call Ftruncate with two arguments, not one.
* floatfns.c (Ffloat):
Correct this, if NUMBER is a bignum.
* lisp.h:
Declare Ftruncate as taking two arguments.
* number.c:
Provide scratch_ratio2, init it appropriately.
* number.h:
Make scratch_ratio2 available.
* number.h (BIGFLOAT_ARITH_RETURN):
* number.h (BIGFLOAT_ARITH_RETURN1):
Correct these functions.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 11 Aug 2009 17:59:23 +0100 |
| parents | abe6d1db359e |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 442 | 1 ;;; cus-file.el --- Manage location of the customize init file |
| 2 | |
| 3 ;; Copyright (C) 2000 by Free Software Foundation, Inc. | |
| 4 | |
| 5 ;; Author: Mike Sperber <mike@xemacs.org> | |
| 6 ;; Keywords: internal | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
| 10 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 11 ;; under the terms of the GNU General Public License as published by | |
| 12 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 13 ;; any later version. | |
| 14 | |
| 15 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 ;; General Public License for more details. | |
| 19 | |
| 20 ;; You should have received a copy of the GNU General Public License | |
| 21 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
| 22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 23 ;; 02111-1307, USA. | |
| 24 | |
| 25 ;;; Synched up with: Not in FSF | |
| 26 | |
| 27 ;;; Commentary: | |
| 28 | |
| 29 ;; This file manages the location of the custom init file without | |
| 30 ;; loading all of the custom code itself. | |
| 31 | |
| 32 | |
| 33 ;;; Code: | |
| 34 (provide 'cus-file) | |
| 35 | |
| 36 ;;;###autoload | |
| 37 (defconst custom-file-base "custom.el" | |
| 38 "Base of file name for storing customization information.") | |
| 39 | |
| 40 ;;;###autoload | |
| 41 (defvar custom-file nil | |
| 42 "File used for storing customization information. | |
| 43 If you change this from the default you need to | |
| 44 explicitly load that file for the settings to take effect.") | |
| 45 | |
| 46 ;;;###autoload | |
| 47 (defun make-custom-file-name (init-file &optional force-new) | |
| 48 "Construct the default custom file name from the init file name. | |
| 49 If FORCE-NEW is non-nil, force post-migration location." | |
| 50 (let ((init-file (or init-file user-init-file))) | |
| 51 (if (or force-new | |
| 52 (not init-file) | |
| 53 (string= (file-name-directory init-file) | |
| 54 (expand-file-name | |
| 55 (file-name-as-directory user-init-directory)))) | |
| 56 (expand-file-name custom-file-base user-init-directory) | |
| 57 init-file))) | |
| 58 | |
| 59 ;;; cus-file.el ends here |