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<h1>platform.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* source/headers/geos/platform.h. Generated from platform.h.in by configure. */</span>
<a name="l00002"></a>00002 <span class="preprocessor">#ifndef GEOS_PLATFORM_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_PLATFORM_H</span>
<a name="l00004"></a>00004 <span class="preprocessor"></span>
<a name="l00005"></a>00005 <span class="comment">/* Set to 1 if you have `int64_t' type */</span>
<a name="l00006"></a>00006 <span class="preprocessor">#define HAVE_INT64_T_64 </span>
<a name="l00007"></a>00007 <span class="preprocessor"></span>
<a name="l00008"></a>00008 <span class="comment">/* Set to 1 if `long int' is 64 bits */</span>
<a name="l00009"></a>00009 <span class="comment">/* #undef HAVE_LONG_INT_64 */</span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="comment">/* Set to 1 if `long long int' is 64 bits */</span>
<a name="l00012"></a>00012 <span class="comment">/* #undef HAVE_LONG_LONG_INT_64 */</span>
<a name="l00013"></a>00013
<a name="l00014"></a>00014 <span class="comment">/* Set to 1 if you have ieeefp.h */</span>
<a name="l00015"></a>00015 <span class="comment">/* #undef HAVE_IEEEFP_H */</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="comment">/* Has finite */</span>
<a name="l00018"></a>00018 <span class="preprocessor">#define HAVE_FINITE 1</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span>
<a name="l00020"></a>00020 <span class="comment">/* Has isfinite */</span>
<a name="l00021"></a>00021 <span class="comment">/* #undef HAVE_ISFINITE */</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="comment">/* Has isnan */</span>
<a name="l00024"></a>00024 <span class="preprocessor">#define HAVE_ISNAN 1</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span>
<a name="l00026"></a>00026 <span class="preprocessor">#ifdef HAVE_IEEEFP_H</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span>
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029 <span class="preprocessor">#include <ieeefp.h></span>
<a name="l00030"></a>00030 }
<a name="l00031"></a>00031 <span class="preprocessor">#endif</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span>
<a name="l00033"></a>00033 <span class="preprocessor">#ifdef HAVE_INT64_T_64</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span>
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <span class="preprocessor">#include <inttypes.h></span>
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038 <span class="preprocessor">#endif</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#if defined(__GNUC__) && defined(_WIN32)</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="comment">/* For MingW the appropriate definitions are included in</span>
<a name="l00042"></a>00042 <span class="comment"> math.h and float.h but the definitions in </span>
<a name="l00043"></a>00043 <span class="comment"> math.h are only included if __STRICT_ANSI__</span>
<a name="l00044"></a>00044 <span class="comment"> is not defined. Since GEOS is compiled with -ansi that</span>
<a name="l00045"></a>00045 <span class="comment"> means those definitions are not available. */</span>
<a name="l00046"></a>00046 <span class="preprocessor">#include <float.h></span>
<a name="l00047"></a>00047 <span class="preprocessor">#endif</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span>
<a name="l00049"></a>00049 <span class="preprocessor">#include <cmath></span> <span class="comment">// for finite()/isfinite() and isnan()</span>
<a name="l00050"></a>00050 <span class="preprocessor">#include <limits></span> <span class="comment">// for std::numeric_limits</span>
<a name="l00051"></a>00051
<a name="l00052"></a>00052
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="comment">//Defines NaN for intel platforms</span>
<a name="l00055"></a>00055 <span class="preprocessor">#define DoubleNotANumber std::numeric_limits<double>::quiet_NaN()</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span>
<a name="l00057"></a>00057 <span class="comment">//Don't forget to define infinities</span>
<a name="l00058"></a>00058 <span class="preprocessor">#define DoubleInfinity std::numeric_limits<double>::infinity()</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span><span class="preprocessor">#define DoubleNegInfinity -std::numeric_limits<double>::infinity()</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span>
<a name="l00061"></a>00061 <span class="preprocessor">#define DoubleMax std::numeric_limits<double>::max()</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span>
<a name="l00063"></a>00063 <span class="keyword">inline</span> <span class="keywordtype">bool</span>
<a name="l00064"></a>00064 isFinite(<span class="keywordtype">double</span> d)
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066 <span class="preprocessor">#if defined(HAVE_FINITE) && !defined(HAVE_ISFINITE) && !defined(__MINGW32__)</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span> <span class="keywordflow">return</span> (finite(d));
<a name="l00068"></a>00068 <span class="preprocessor">#else</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span> <span class="comment">// Put using namespace std; here if you have to</span>
<a name="l00070"></a>00070 <span class="comment">// put it anywhere.</span>
<a name="l00071"></a>00071 <span class="keyword">using namespace </span>std;
<a name="l00072"></a>00072 <span class="keywordflow">return</span> (isfinite(d));
<a name="l00073"></a>00073 <span class="preprocessor">#endif</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span>}
<a name="l00075"></a>00075 <span class="preprocessor">#define FINITE(x) ( isFinite(x) ) </span>
<a name="l00076"></a>00076 <span class="preprocessor"></span>
<a name="l00077"></a>00077 <span class="preprocessor">#ifdef HAVE_ISNAN</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor">#define ISNAN(x) ( isnan(x) )</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span><span class="comment">// Hack for OS/X <cmath> incorrectly re-defining isnan() into</span>
<a name="l00081"></a>00081 <span class="comment">// oblivion. It does leave a version in std.</span>
<a name="l00082"></a>00082 <span class="preprocessor">#define ISNAN(x) ( std::isnan(x) )</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span>
<a name="l00085"></a>00085 <span class="preprocessor">#ifdef HAVE_INT64_T_64</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span> <span class="keyword">typedef</span> int64_t int64;
<a name="l00087"></a>00087 <span class="preprocessor">#else</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span><span class="preprocessor"># ifdef HAVE_LONG_LONG_INT_64</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> <span class="keywordtype">int</span> int64;
<a name="l00090"></a>00090 <span class="preprocessor"># else</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keywordtype">long</span> <span class="keywordtype">int</span> int64;
<a name="l00092"></a>00092 <span class="preprocessor"># ifndef HAVE_LONG_INT_64</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span><span class="preprocessor"># define INT64_IS_REALLY32 1</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span><span class="preprocessor"># warning "Could not find 64bit integer definition!"</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00097"></a>00097 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span>
<a name="l00099"></a>00099 <span class="keyword">inline</span> <span class="keywordtype">int</span> getMachineByteOrder() {
<a name="l00100"></a>00100 <span class="keyword">static</span> <span class="keywordtype">int</span> endian_check = 1; <span class="comment">// don't modify !!</span>
<a name="l00101"></a>00101 <span class="keywordflow">return</span> *((<span class="keywordtype">char</span> *)&endian_check); <span class="comment">// 0 == big_endian | xdr,</span>
<a name="l00102"></a>00102 <span class="comment">// 1 == little_endian | ndr</span>
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="preprocessor">#endif</span>
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