Mercurial > hg > xemacs-beta
view src/dump-data.c @ 4329:d9eb5ea14f65
Provide %b in #'format; use it for converting between ints and bit vectors.
lisp/ChangeLog addition:
2007-12-17 Aidan Kehoe <kehoea@parhasard.net>
* subr.el (integer-to-bit-vector): New.
* subr.el (bit-vector-to-integer): New.
Provide naive implementations using the Lisp reader for these.
src/ChangeLog addition:
2007-12-17 Aidan Kehoe <kehoea@parhasard.net>
* doprnt.c (emacs_doprnt_1):
Add support for formatted printing of both longs and bignums as
base 2.
* editfns.c (Fformat):
Document the new %b escape for #'format.
* lisp.h:
Make ulong_to_bit_string available beside long_to_string.
* lread.c:
Fix a bug where the integer base was being ignored in certain
contexts; thank you Sebastian Freundt. This is necessary for
correct behaviour of #'integer-to-bit-vector and
#'bit-vector-to-integer, just added to subr.el
* print.c (ulong_to_bit_string): New.
Analagous to long_to_string, but used all the time when %b is
encountered, since we can't pass that to sprintf.
man/ChangeLog addition:
2007-12-17 Aidan Kehoe <kehoea@parhasard.net>
* lispref/strings.texi (Formatting Strings):
Document %b for binary output.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Mon, 17 Dec 2007 08:44:14 +0100 |
parents | ecf1ebac70d8 |
children | 308d34e9f07d |
line wrap: on
line source
/* Static array to put the dumped data in and its management Copyright (C) 2003 Olivier Galibert 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: Not in FSF. */ /* Mule-ized? Mwahahahahahaha */ /* Magic values by Larry McVoy to prevent every known compiler, including an especially perverse HP-UX one, from putting the array in BSS. */ #include <config.h> #include "lisp.h" #include "dump-data.h" /* 4 bytes for the data size, 4096 for alignment */ static Rawbyte dumped_data[MAX_SIZE+4096+4] = { 255, 6, 1, 2, 3, 4, 255, 3, 9, 62, 255, 10, 4, 61, 255 }; size_t dumped_data_size (void) { return dumped_data[0] | (dumped_data[1] << 8) | (dumped_data[2] << 16) | (dumped_data[3] << 24); } size_t dumped_data_max_size (void) { return MAX_SIZE; } size_t dumped_data_align_offset (void) { EMACS_INT iptr = (EMACS_INT) dumped_data; EMACS_INT iptr2; iptr2 = (iptr + 4 + 4095) & ~(EMACS_INT) 4095; return iptr2 - iptr; } Rawbyte * dumped_data_get (void) { EMACS_INT iptr = (EMACS_INT) dumped_data; iptr = (iptr + 4 + 4095) & ~(EMACS_INT) 4095; return (Rawbyte *) iptr; }