view src/sysfloat.h @ 2362:6aa56b089139

[xemacs-hg @ 2004-11-02 09:51:04 by ben] To: xemacs-patches@xemacs.org internals/index.texi: Deleted. Incorporated into internals.texi. Having a separate index file messes up texinfo-master-menu. internals/internals.texi: Add bunches and bunches and bunches and bunches of stuff, taken from documentation floating around in various places -- text.c, file-coding.c, other .c and .h files, stuff that I wrote up for an old XEmacs contract, proposals written up in the process of an e-mail discussion, etc. Fix up some mistakes, esp. in CCL. Extra crap from CCL, duplicated with Lispref, removed. Sections on Old Future Work and Future Work Discussion added. Bunches of other work. Add bunches of documentation taken from the source code. Fixup various places to use @strong{}, @code{}, @file{}. Create new Text chapter, split off from Buffers and Textual Representation. Create new chapter for MS Windows, mostly written from scratch. Consolidate all Mule info under "Multilingual Support". Break up chapter on modules and move some parts to the sections discussing the modules, for consolidation purposes. Add a big cross-reference table for all the modules to where they're discussed (or not). New chapter Asynchronous Events; Quit Checking. (Taken from various parts of the code.) New Introduction. New section on Focus Handling (from the code). NOTE that in the process, I discovered that we essentially have FOUR redundant introductions to Mule issues! Someone really needs to go through and clean them up and integrate them (sjt?).
author ben
date Tue, 02 Nov 2004 09:51:18 +0000
parents 943eaba38521
children 308d34e9f07d
line wrap: on
line source

/*
   Copyright (C) 1995 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 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 really in FSF. */

#ifndef INCLUDED_sysfloat_h_
#define INCLUDED_sysfloat_h_

#if defined(LINUX) && !(defined (__GLIBC__) && (__GLIBC__ >= 2))
/* These are redefined (correctly, but differently) in values.h.  */
#undef INTBITS
#undef LONGBITS
#undef SHORTBITS
#endif

#include <math.h>

#ifdef WIN32_NATIVE
/* A quirky way to obtain logb prototype */
#include <float.h>
#define logb _logb
#endif

#ifdef HAVE_MATHERR
/* Work around symbol conflict on Linux/glibc */
#ifndef DOMAIN
/* SysV matherr is not defined if _BSD_SOURCE is used, and on Linux X11 */
/* is compiled with _BSD_SOURCE which can also change the size of other */
/* types.  The configure test for matherr is broken. */
/* Bah.  Good riddance to bad rubbish. */
#undef HAVE_MATHERR
#endif
#endif

#ifdef NO_MATHERR
#undef HAVE_MATHERR
#endif

#ifdef HAVE_MATHERR
# ifdef FLOAT_CHECK_ERRNO
#  undef FLOAT_CHECK_ERRNO
# endif
# ifdef FLOAT_CHECK_DOMAIN
#  undef FLOAT_CHECK_DOMAIN
# endif
#endif

#ifndef NO_FLOAT_CHECK_ERRNO
#define FLOAT_CHECK_ERRNO
#endif

#ifdef FLOAT_CHECK_ERRNO
# include <errno.h>
#endif

#ifndef isnan
# define isnan(x) ((x) != (x))
#endif

#endif /* INCLUDED_sysfloat_h_ */