2008-06-17 21:38:00 +02:00
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/* $Id$ */
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2009-08-21 22:21:05 +02:00
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/*
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* This file is part of OpenTTD.
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* OpenTTD 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, version 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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2008-06-17 21:38:00 +02:00
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/** @file endian_type.hpp Definition of various endian-dependant macros. */
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2009-02-17 03:08:53 +01:00
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#ifndef ENDIAN_TYPE_HPP
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#define ENDIAN_TYPE_HPP
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2008-06-17 21:38:00 +02:00
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#if defined(ARM) || defined(__arm__) || defined(__alpha__)
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2011-05-02 19:42:12 +02:00
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/** The architecture requires aligned access. */
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2008-06-17 21:38:00 +02:00
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#define OTTD_ALIGNMENT 1
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#else
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2011-05-02 19:42:12 +02:00
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/** The architecture does not require aligned access. */
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2008-06-17 21:38:00 +02:00
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#define OTTD_ALIGNMENT 0
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#endif
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2011-05-02 19:42:12 +02:00
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/** Little endian builds use this for TTD_ENDIAN. */
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2008-06-17 21:38:00 +02:00
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#define TTD_LITTLE_ENDIAN 0
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2011-05-02 19:42:12 +02:00
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/** Big endian builds use this for TTD_ENDIAN. */
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2008-06-17 21:38:00 +02:00
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#define TTD_BIG_ENDIAN 1
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/* Windows has always LITTLE_ENDIAN */
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2019-03-05 21:56:26 +01:00
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#if defined(_WIN32) || defined(__OS2__) || defined(__HAIKU__) || defined(__DJGPP__)
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2018-04-30 22:55:17 +02:00
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# define TTD_ENDIAN TTD_LITTLE_ENDIAN
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#elif defined(OSX)
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# include <sys/types.h>
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# if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
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# define TTD_ENDIAN TTD_LITTLE_ENDIAN
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# else
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# define TTD_ENDIAN TTD_BIG_ENDIAN
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# endif
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2008-06-17 21:38:00 +02:00
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#elif !defined(TESTING)
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2018-04-30 22:55:17 +02:00
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# include <sys/param.h>
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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# define TTD_ENDIAN TTD_LITTLE_ENDIAN
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# else
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# define TTD_ENDIAN TTD_BIG_ENDIAN
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# endif
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2018-12-09 02:28:14 +01:00
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#endif /* _WIN32 || __OS2__ */
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2008-06-17 21:38:00 +02:00
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#endif /* ENDIAN_TYPE_HPP */
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