Mercurial > hg > xemacs-beta

view src/s/mach-bsd4-3.h @ 5736:3192994c49ca

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 1f0b15040456
children
line wrap: on
line source

/* Definitions file for XEmacs running on Mach (BSD 4.3)
   Copyright (C) 1985, 1986, 1993 Free Software Foundation, Inc.

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/>. */

/* Synched up with: FSF 19.31. */

/* I don't care if this doesn't do more than including bsd-common.h;
   Mach is not BSD and the moment you forget it chances are that
   you're in deep shit.  */

#include "bsd-common.h"

/* The rest of this stuff is XEmacs additions. */
 
/* SYSTEM_TYPE should indicate the kind of system you are using.
 It sets the Lisp variable system-type.  */

#undef SYSTEM_TYPE
#define SYSTEM_TYPE "mach"

/* Don't send signals to subprocesses by "typing" special chars at them. */
#undef SIGNALS_VIA_CHARACTERS

/* Delete defn of _POSIX_PATH_MAX -- we check for being defined before using
   it */

#ifndef NOT_C_CODE
typedef int pid_t;
/* XEmacs change */
typedef unsigned short mode_t;
#endif /* NOT_C_CODE */

#if (defined(i386) || defined(ibmrt))
  /* use drem() instead of fmod() -- this is a BUG in the compiler runtime. */
# define USE_DREM
#endif