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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>The Polynomials Templates Library: FloatSpecs.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.5 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>FloatSpecs.h</h1><a href="a00092.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef FLOATSPECS_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define FLOATSPECS_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00028"></a>00028 <span class="preprocessor">#include <float.h></span><a name="l00029"></a>00029 <a name="l00035"></a>00035 <span class="keyword">template</span> < <span class="keyword">class</span> Float ><a name="l00036"></a><a class="code" href="a00089.html">00036</a> <span class="keyword">class </span><a class="code" href="a00089.html">FloatSpecs</a> {<a name="l00037"></a>00037 <span class="keyword">public</span>:<a name="l00038"></a><a class="code" href="a00089.html#5e567bf650640c58e9455ad2eb4b05bc">00038</a> Float <a class="code" href="a00089.html#5e567bf650640c58e9455ad2eb4b05bc">ETA</a>; <a name="l00040"></a><a class="code" href="a00089.html#e7b1a5c82772e0e055096008cb9883ef">00040</a> Float <a class="code" href="a00089.html#e7b1a5c82772e0e055096008cb9883ef">BASE</a>; <a name="l00041"></a><a class="code" href="a00089.html#7fce7d8806caf8595e993e7f1258e57d">00041</a> Float <a class="code" href="a00089.html#7fce7d8806caf8595e993e7f1258e57d">INFINY</a>; <a name="l00042"></a><a class="code" href="a00089.html#ce3bf7fb1752f8ff96a483091285536d">00042</a> Float <a class="code" href="a00089.html#ce3bf7fb1752f8ff96a483091285536d">SMALNO</a>; <a name="l00043"></a><a class="code" href="a00089.html#6cf389757399a3d8def3269f8d1f7e81">00043</a> Float <a class="code" href="a00089.html#6cf389757399a3d8def3269f8d1f7e81">ARE</a>; <a name="l00044"></a><a class="code" href="a00089.html#97e449a72a34fb15bd9a60055852130e">00044</a> Float <a class="code" href="a00089.html#97e449a72a34fb15bd9a60055852130e">MRE</a>; <a name="l00045"></a><a class="code" href="a00089.html#21fb6e241507492d75c488a9c65d12fe">00045</a> Float <a class="code" href="a00089.html#21fb6e241507492d75c488a9c65d12fe">LOG_BASE</a>; <a name="l00047"></a>00047 <span class="keyword">public</span>:<a name="l00049"></a><a class="code" href="a00089.html#cc4637b908da4d68b624b23a12d5d234">00049</a> <a class="code" href="a00089.html#cc4637b908da4d68b624b23a12d5d234">FloatSpecs</a>() {<a name="l00050"></a>00050 initConstants();<a name="l00051"></a>00051 }<a name="l00052"></a>00052 <a name="l00053"></a>00053 <span class="keyword">private</span>:<a name="l00054"></a>00054 <a name="l00056"></a>00056 <span class="keywordtype">void</span> initConstants() {<a name="l00057"></a>00057 getFPSpecs(<a class="code" href="a00089.html#5e567bf650640c58e9455ad2eb4b05bc">ETA</a>, <a class="code" href="a00089.html#7fce7d8806caf8595e993e7f1258e57d">INFINY</a>, <a class="code" href="a00089.html#ce3bf7fb1752f8ff96a483091285536d">SMALNO</a>, <a class="code" href="a00089.html#e7b1a5c82772e0e055096008cb9883ef">BASE</a>);<a name="l00058"></a>00058 <a class="code" href="a00089.html#6cf389757399a3d8def3269f8d1f7e81">ARE</a> = <a class="code" href="a00089.html#5e567bf650640c58e9455ad2eb4b05bc">ETA</a>;<a name="l00059"></a>00059 <a class="code" href="a00089.html#97e449a72a34fb15bd9a60055852130e">MRE</a> = 2 * sqrt(Float(2.0)) * <a class="code" href="a00089.html#5e567bf650640c58e9455ad2eb4b05bc">ETA</a>;<a name="l00060"></a>00060 <a class="code" href="a00089.html#21fb6e241507492d75c488a9c65d12fe">LOG_BASE</a> = log(<a class="code" href="a00089.html#e7b1a5c82772e0e055096008cb9883ef">BASE</a>);<a name="l00061"></a>00061 }<a name="l00062"></a>00062 <a name="l00064"></a>00064 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> getFPSpecs(<span class="keywordtype">float</span> & eta, <span class="keywordtype">float</span> & infiny, <span class="keywordtype">float</span> & smalno, <span class="keywordtype">float</span> & base) {<a name="l00065"></a>00065 base = FLT_RADIX;<a name="l00066"></a>00066 eta = FLT_EPSILON;<a name="l00067"></a>00067 infiny = FLT_MAX;<a name="l00068"></a>00068 smalno = FLT_MIN;<a name="l00069"></a>00069 }<a name="l00070"></a>00070 <a name="l00072"></a>00072 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> getFPSpecs(<span class="keywordtype">double</span> & eta, <span class="keywordtype">double</span> & infiny, <span class="keywordtype">double</span> & smalno, <span class="keywordtype">double</span> & base) {<a name="l00073"></a>00073 base = DBL_RADIX;<a name="l00074"></a>00074 eta = DBL_EPSILON;<a name="l00075"></a>00075 infiny = DBL_MAX;<a name="l00076"></a>00076 smalno = DBL_MIN;<a name="l00077"></a>00077 }<a name="l00078"></a>00078 <a name="l00080"></a>00080 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> getFPSpecs(<span class="keywordtype">long</span> <span class="keywordtype">double</span> & eta, <span class="keywordtype">long</span> <span class="keywordtype">double</span> & infiny, <span class="keywordtype">long</span> <span class="keywordtype">double</span> & smalno, <span class="keywordtype">long</span> <span class="keywordtype">double</span> & base) {<a name="l00081"></a>00081 base = LDBL_RADIX;<a name="l00082"></a>00082 eta = LDBL_EPSILON;<a name="l00083"></a>00083 infiny = LDBL_MAX;<a name="l00084"></a>00084 smalno = LDBL_MIN;<a name="l00085"></a>00085 }<a name="l00086"></a>00086 };<a name="l00087"></a>00087 <a name="l00088"></a>00088 <span class="preprocessor">#endif //FLOATSPECS_H</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Aug 21 21:57:25 2006 for The Polynomials Templates Library by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.5 </small></address></body></html>⌨️ 快捷键说明
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