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distrib > Mandriva > 2010.0 > i586 > media > contrib-release > by-pkgid > 29c369053a983cc5d8c880dc6e0a2237 > files > 769

libdtn-devel-2.6.0-2mdv2009.1.i586.rpm

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<h1>brg_endian.h</h1><a href="brg__endian_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> ---------------------------------------------------------------------------</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (c) 1998-2006, Brian Gladman, Worcester, UK. All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> LICENSE TERMS</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment"> The free distribution and use of this software in both source and binary</span>
<a name="l00008"></a>00008 <span class="comment"> form is allowed (with or without changes) provided that:</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment">   1. distributions of this source code include the above copyright</span>
<a name="l00011"></a>00011 <span class="comment">      notice, this list of conditions and the following disclaimer;</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment">   2. distributions in binary form include the above copyright</span>
<a name="l00014"></a>00014 <span class="comment">      notice, this list of conditions and the following disclaimer</span>
<a name="l00015"></a>00015 <span class="comment">      in the documentation and/or other associated materials;</span>
<a name="l00016"></a>00016 <span class="comment"></span>
<a name="l00017"></a>00017 <span class="comment">   3. the copyright holder's name is not used to endorse products</span>
<a name="l00018"></a>00018 <span class="comment">      built using this software without specific written permission.</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> ALTERNATIVELY, provided that this notice is retained in full, this product</span>
<a name="l00021"></a>00021 <span class="comment"> may be distributed under the terms of the GNU General Public License (GPL),</span>
<a name="l00022"></a>00022 <span class="comment"> in which case the provisions of the GPL apply INSTEAD OF those given above.</span>
<a name="l00023"></a>00023 <span class="comment"></span>
<a name="l00024"></a>00024 <span class="comment"> DISCLAIMER</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> This software is provided 'as is' with no explicit or implied warranties</span>
<a name="l00027"></a>00027 <span class="comment"> in respect of its properties, including, but not limited to, correctness</span>
<a name="l00028"></a>00028 <span class="comment"> and/or fitness for purpose.</span>
<a name="l00029"></a>00029 <span class="comment"> ---------------------------------------------------------------------------</span>
<a name="l00030"></a>00030 <span class="comment"> Issue 20/10/2006</span>
<a name="l00031"></a>00031 <span class="comment">*/</span>
<a name="l00032"></a>00032 
<a name="l00033"></a>00033 <span class="preprocessor">#ifndef BRG_ENDIAN_H</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#define BRG_ENDIAN_H</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span>
<a name="l00036"></a><a class="code" href="brg__endian_8h.html#0fdc6fe49d3e76c9ed558321df1decef">00036</a> <span class="preprocessor">#define IS_BIG_ENDIAN      4321 </span><span class="comment">/* byte 0 is most significant (mc68k) */</span>
<a name="l00037"></a><a class="code" href="brg__endian_8h.html#30f87dfd7349d5165f116b550c35c6ed">00037</a> <span class="preprocessor">#define IS_LITTLE_ENDIAN   1234 </span><span class="comment">/* byte 0 is least significant (i386) */</span>
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <span class="comment">/* Include files where endian defines and byteswap functions may reside */</span>
<a name="l00040"></a>00040 <span class="preprocessor">#if defined( __sun__ )</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;sys/isa_defs.h&gt;</span>
<a name="l00042"></a>00042 <span class="preprocessor">#elif defined( __FreeBSD__ ) || defined( __OpenBSD__ ) || defined( __NetBSD__ )</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;sys/endian.h&gt;</span>
<a name="l00044"></a>00044 <span class="preprocessor">#elif defined( BSD ) &amp;&amp; ( BSD &gt;= 199103 ) || defined( __APPLE__ ) || \</span>
<a name="l00045"></a>00045 <span class="preprocessor">      defined( __CYGWIN32__ ) || defined( __DJGPP__ ) || defined( __osf__ )</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor">#  include &lt;machine/endian.h&gt;</span>
<a name="l00047"></a>00047 <span class="preprocessor">#elif defined( __linux__ ) || defined( __GNUC__ ) || defined( __GNU_LIBRARY__ )</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#  if !defined( __MINGW32__ )</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#    include &lt;endian.h&gt;</span>
<a name="l00050"></a>00050 <span class="preprocessor">#    if !defined( __BEOS__ )</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#      include &lt;byteswap.h&gt;</span>
<a name="l00052"></a>00052 <span class="preprocessor">#    endif</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#  endif</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="comment">/* Now attempt to set the define for platform byte order using any  */</span>
<a name="l00057"></a>00057 <span class="comment">/* of the four forms SYMBOL, _SYMBOL, __SYMBOL &amp; __SYMBOL__, which  */</span>
<a name="l00058"></a>00058 <span class="comment">/* seem to encompass most endian symbol definitions                 */</span>
<a name="l00059"></a>00059 
<a name="l00060"></a>00060 <span class="preprocessor">#if defined( BIG_ENDIAN ) &amp;&amp; defined( LITTLE_ENDIAN )</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#  if defined( BYTE_ORDER ) &amp;&amp; BYTE_ORDER == BIG_ENDIAN</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#  elif defined( BYTE_ORDER ) &amp;&amp; BYTE_ORDER == LITTLE_ENDIAN</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="preprocessor">#  endif</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span><span class="preprocessor">#elif defined( BIG_ENDIAN )</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="preprocessor">#elif defined( LITTLE_ENDIAN )</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span>
<a name="l00072"></a>00072 <span class="preprocessor">#if defined( _BIG_ENDIAN ) &amp;&amp; defined( _LITTLE_ENDIAN )</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span><span class="preprocessor">#  if defined( _BYTE_ORDER ) &amp;&amp; _BYTE_ORDER == _BIG_ENDIAN</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor">#  elif defined( _BYTE_ORDER ) &amp;&amp; _BYTE_ORDER == _LITTLE_ENDIAN</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span><span class="preprocessor">#  endif</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor">#elif defined( _BIG_ENDIAN )</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span><span class="preprocessor">#elif defined( _LITTLE_ENDIAN )</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span>
<a name="l00084"></a>00084 <span class="preprocessor">#if defined( __BIG_ENDIAN ) &amp;&amp; defined( __LITTLE_ENDIAN )</span>
<a name="l00085"></a>00085 <span class="preprocessor"></span><span class="preprocessor">#  if defined( __BYTE_ORDER ) &amp;&amp; __BYTE_ORDER == __BIG_ENDIAN</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00087"></a>00087 <span class="preprocessor"></span><span class="preprocessor">#  elif defined( __BYTE_ORDER ) &amp;&amp; __BYTE_ORDER == __LITTLE_ENDIAN</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#  endif</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __BIG_ENDIAN )</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __LITTLE_ENDIAN )</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span>
<a name="l00096"></a>00096 <span class="preprocessor">#if defined( __BIG_ENDIAN__ ) &amp;&amp; defined( __LITTLE_ENDIAN__ )</span>
<a name="l00097"></a>00097 <span class="preprocessor"></span><span class="preprocessor">#  if defined( __BYTE_ORDER__ ) &amp;&amp; __BYTE_ORDER__ == __BIG_ENDIAN__</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span><span class="preprocessor">#  elif defined( __BYTE_ORDER__ ) &amp;&amp; __BYTE_ORDER__ == __LITTLE_ENDIAN__</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span><span class="preprocessor">#    define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00101"></a>00101 <span class="preprocessor"></span><span class="preprocessor">#  endif</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __BIG_ENDIAN__ )</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00104"></a>00104 <span class="preprocessor"></span><span class="preprocessor">#elif defined( __LITTLE_ENDIAN__ )</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00106"></a>00106 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span>
<a name="l00108"></a>00108 <span class="comment">/*  if the platform byte order could not be determined, then try to */</span>
<a name="l00109"></a>00109 <span class="comment">/*  set this define using common machine defines                    */</span>
<a name="l00110"></a>00110 <span class="preprocessor">#if !defined(PLATFORM_BYTE_ORDER)</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span>
<a name="l00112"></a>00112 <span class="preprocessor">#if   defined( __alpha__ ) || defined( __alpha ) || defined( i386 )       || \</span>
<a name="l00113"></a>00113 <span class="preprocessor">      defined( __i386__ )  || defined( _M_I86 )  || defined( _M_IX86 )    || \</span>
<a name="l00114"></a>00114 <span class="preprocessor">      defined( __OS2__ )   || defined( sun386 )  || defined( __TURBOC__ ) || \</span>
<a name="l00115"></a>00115 <span class="preprocessor">      defined( vax )       || defined( vms )     || defined( VMS )        || \</span>
<a name="l00116"></a>00116 <span class="preprocessor">      defined( __VMS )     || defined( _M_X64 )</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span>
<a name="l00119"></a>00119 <span class="preprocessor">#elif defined( AMIGA )   || defined( applec )    || defined( __AS400__ )  || \</span>
<a name="l00120"></a>00120 <span class="preprocessor">      defined( _CRAY )   || defined( __hppa )    || defined( __hp9000 )   || \</span>
<a name="l00121"></a>00121 <span class="preprocessor">      defined( ibm370 )  || defined( mc68000 )   || defined( m68k )       || \</span>
<a name="l00122"></a>00122 <span class="preprocessor">      defined( __MRC__ ) || defined( __MVS__ )   || defined( __MWERKS__ ) || \</span>
<a name="l00123"></a>00123 <span class="preprocessor">      defined( sparc )   || defined( __sparc)    || defined( SYMANTEC_C ) || \</span>
<a name="l00124"></a>00124 <span class="preprocessor">      defined( __VOS__ ) || defined( __TIGCC__ ) || defined( __TANDEM )   || \</span>
<a name="l00125"></a>00125 <span class="preprocessor">      defined( THINK_C ) || defined( __VMCMS__ )</span>
<a name="l00126"></a>00126 <span class="preprocessor"></span><span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span>
<a name="l00128"></a>00128 <span class="preprocessor">#elif 0     </span><span class="comment">/* **** EDIT HERE IF NECESSARY **** */</span>
<a name="l00129"></a>00129 <span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN</span>
<a name="l00130"></a>00130 <span class="preprocessor"></span><span class="preprocessor">#elif 0     </span><span class="comment">/* **** EDIT HERE IF NECESSARY **** */</span>
<a name="l00131"></a>00131 <span class="preprocessor">#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN</span>
<a name="l00132"></a>00132 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span><span class="preprocessor">#  error Please edit lines 126 or 128 in brg_endian.h to set the platform byte order</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span>
<a name="l00136"></a>00136 <span class="preprocessor">#endif</span>
<a name="l00137"></a>00137 <span class="preprocessor"></span>
<a name="l00138"></a>00138 <span class="preprocessor">#endif</span>
</pre></div></div>
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