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authorBoris Kolpackov <boris@codesynthesis.com>2011-06-28 17:17:23 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2011-06-28 17:17:23 +0200
commitb51965dddbed68f23c5e8c169c23c794313ce5f6 (patch)
tree37bbdf4e5b1cdd34ea0694a5abd1483d1de2b3af /cutl/details/boost/detail/endian.hpp
parent5f06e7e30e4f511ce2fb27c5feefa6aeb6f00841 (diff)
Add boost subset as an implementation detail
Diffstat (limited to 'cutl/details/boost/detail/endian.hpp')
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+// Copyright 2005 Caleb Epstein
+// Copyright 2006 John Maddock
+// Copyright 2010 Rene Rivera
+// Distributed under the Boost Software License, Version 1.0. (See accompany-
+// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+/*
+ * Copyright (c) 1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/*
+ * Copyright notice reproduced from <cutl/details/boost/detail/limits.hpp>, from
+ * which this code was originally taken.
+ *
+ * Modified by Caleb Epstein to use <endian.h> with GNU libc and to
+ * defined the BOOST_ENDIAN macro.
+ */
+
+#ifndef BOOST_DETAIL_ENDIAN_HPP
+#define BOOST_DETAIL_ENDIAN_HPP
+
+// GNU libc offers the helpful header <endian.h> which defines
+// __BYTE_ORDER
+
+#if defined (__GLIBC__)
+# include <endian.h>
+# if (__BYTE_ORDER == __LITTLE_ENDIAN)
+# define BOOST_LITTLE_ENDIAN
+# elif (__BYTE_ORDER == __BIG_ENDIAN)
+# define BOOST_BIG_ENDIAN
+# elif (__BYTE_ORDER == __PDP_ENDIAN)
+# define BOOST_PDP_ENDIAN
+# else
+# error Unknown machine endianness detected.
+# endif
+# define BOOST_BYTE_ORDER __BYTE_ORDER
+#elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN) || \
+ defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__) || \
+ defined(_STLP_BIG_ENDIAN) && !defined(_STLP_LITTLE_ENDIAN)
+# define BOOST_BIG_ENDIAN
+# define BOOST_BYTE_ORDER 4321
+#elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN) || \
+ defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__) || \
+ defined(_STLP_LITTLE_ENDIAN) && !defined(_STLP_BIG_ENDIAN)
+# define BOOST_LITTLE_ENDIAN
+# define BOOST_BYTE_ORDER 1234
+#elif defined(__sparc) || defined(__sparc__) \
+ || defined(_POWER) || defined(__powerpc__) \
+ || defined(__ppc__) || defined(__hpux) || defined(__hppa) \
+ || defined(_MIPSEB) || defined(_POWER) \
+ || defined(__s390__)
+# define BOOST_BIG_ENDIAN
+# define BOOST_BYTE_ORDER 4321
+#elif defined(__i386__) || defined(__alpha__) \
+ || defined(__ia64) || defined(__ia64__) \
+ || defined(_M_IX86) || defined(_M_IA64) \
+ || defined(_M_ALPHA) || defined(__amd64) \
+ || defined(__amd64__) || defined(_M_AMD64) \
+ || defined(__x86_64) || defined(__x86_64__) \
+ || defined(_M_X64) || defined(__bfin__)
+
+# define BOOST_LITTLE_ENDIAN
+# define BOOST_BYTE_ORDER 1234
+#else
+# error The file boost/detail/endian.hpp needs to be set up for your CPU type.
+#endif
+
+
+#endif