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<h1>XMLAbstractDoubleFloat.hpp</h1><a href="XMLAbstractDoubleFloat_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright 2001,2004 The Apache Software Foundation.</span>
00003 <span class="comment"> * </span>
00004 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span>
00005 <span class="comment"> * you may not use this file except in compliance with the License.</span>
00006 <span class="comment"> * You may obtain a copy of the License at</span>
00007 <span class="comment"> * </span>
00008 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
00009 <span class="comment"> * </span>
00010 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
00011 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
00012 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
00013 <span class="comment"> * See the License for the specific language governing permissions and</span>
00014 <span class="comment"> * limitations under the License.</span>
00015 <span class="comment"> */</span>
00016
00017 <span class="comment">/*</span>
00018 <span class="comment"> * $Id: XMLAbstractDoubleFloat.hpp 191054 2005-06-17 02:56:35Z jberry $</span>
00019 <span class="comment"> */</span>
00020
00021 <span class="preprocessor">#ifndef XML_ABSTRACT_DOUBLE_FLOAT_HPP</span>
00022 <span class="preprocessor"></span><span class="preprocessor">#define XML_ABSTRACT_DOUBLE_FLOAT_HPP</span>
00023 <span class="preprocessor"></span>
00024 <span class="preprocessor">#include <<a class="code" href="XMLNumber_8hpp.html">xercesc/util/XMLNumber.hpp</a>></span>
00025 <span class="preprocessor">#include <<a class="code" href="PlatformUtils_8hpp.html">xercesc/util/PlatformUtils.hpp</a>></span>
00026
00027 <a class="code" href="XercesDefs_8hpp.html#a3">XERCES_CPP_NAMESPACE_BEGIN</a>
00028
00029 <span class="comment">/***</span>
00030 <span class="comment"> * 3.2.5.1 Lexical representation</span>
00031 <span class="comment"> *</span>
00032 <span class="comment"> * double values have a lexical representation consisting of a mantissa followed,</span>
00033 <span class="comment"> * optionally, by the character "E" or "e", followed by an exponent.</span>
00034 <span class="comment"> *</span>
00035 <span class="comment"> * The exponent �must� be an integer.</span>
00036 <span class="comment"> * The mantissa must be a decimal number.</span>
00037 <span class="comment"> * The representations for exponent and mantissa must follow the lexical rules</span>
00038 <span class="comment"> * for integer and decimal.</span>
00039 <span class="comment"> *</span>
00040 <span class="comment"> * If the "E" or "e" and the following exponent are omitted,</span>
00041 <span class="comment"> * an exponent value of 0 is assumed.</span>
00042 <span class="comment">***/</span>
00043
00044 <span class="comment">/***</span>
00045 <span class="comment"> * 3.2.4.1 Lexical representation</span>
00046 <span class="comment"> *</span>
00047 <span class="comment"> * float values have a lexical representation consisting of a mantissa followed,</span>
00048 <span class="comment"> * optionally, by the character "E" or "e", followed by an exponent.</span>
00049 <span class="comment"> *</span>
00050 <span class="comment"> * The exponent �must� be an integer.</span>
00051 <span class="comment"> * The mantissa must be a decimal number.</span>
00052 <span class="comment"> * The representations for exponent and mantissa must follow the lexical rules</span>
00053 <span class="comment"> * for integer and decimal.</span>
00054 <span class="comment"> *</span>
00055 <span class="comment"> * If the "E" or "e" and the following exponent are omitted,</span>
00056 <span class="comment"> * an exponent value of 0 is assumed.</span>
00057 <span class="comment">***/</span>
00058
<a name="l00059"></a><a class="code" href="classXMLAbstractDoubleFloat.html">00059</a> <span class="keyword">class </span><a class="code" href="XercesDefs_8hpp.html#a9"></a> XMLAbstractDoubleFloat : <span class="keyword">public</span> <a class="code" href="classXMLNumber.html">XMLNumber</a>
00060 {
00061 <span class="keyword">public</span>:
00062
<a name="l00063"></a><a class="code" href="classXMLAbstractDoubleFloat.html#w5">00063</a> <span class="keyword">enum</span> LiteralType
00064 {
00065 NegINF,
00066 PosINF,
00067 NaN,
00068 SpecialTypeNum,
00069 Normal
00070 };
00071
00072 <span class="keyword">virtual</span> ~XMLAbstractDoubleFloat();
00073
00074 <span class="keyword">static</span> XMLCh* getCanonicalRepresentation
00075 (
00076 <span class="keyword">const</span> XMLCh* <span class="keyword">const</span> rawData
00077 , <a class="code" href="classMemoryManager.html">MemoryManager</a>* <span class="keyword">const</span> memMgr = XMLPlatformUtils::fgMemoryManager
00078 );
00079
00085 <span class="keyword">virtual</span> XMLCh* <a class="code" href="classXMLNumber.html#a1">toString</a>() <span class="keyword">const</span>;
00086
00087 <span class="keyword">virtual</span> XMLCh* <a class="code" href="classXMLNumber.html#a2">getRawData</a>() <span class="keyword">const</span>;
00088
00089 <span class="keyword">virtual</span> <span class="keyword">const</span> XMLCh* <a class="code" href="classXMLNumber.html#a3">getFormattedString</a>() <span class="keyword">const</span>;
00090
00091 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classXMLNumber.html#a4">getSign</a>() <span class="keyword">const</span>;
00092
00093 <a class="code" href="classMemoryManager.html">MemoryManager</a>* getMemoryManager() <span class="keyword">const</span>;
00094
00095 <span class="keyword">inline</span> <span class="keywordtype">bool</span> isDataConverted() <span class="keyword">const</span>;
00096
00097 <span class="keyword">inline</span> <span class="keywordtype">bool</span> isDataOverflowed() <span class="keyword">const</span>;
00098
00099 <span class="keyword">inline</span> <span class="keywordtype">double</span> getValue() <span class="keyword">const</span>;
00100
00101 <span class="keyword">inline</span> LiteralType getType() <span class="keyword">const</span>;
00102
00103 <span class="comment">/***</span>
00104 <span class="comment"> *</span>
00105 <span class="comment"> * The decimal point delimiter for the schema double/float type is</span>
00106 <span class="comment"> * defined to be a period and is not locale-specific. So, it must</span>
00107 <span class="comment"> * be replaced with the local-specific delimiter before converting</span>
00108 <span class="comment"> * from string to double/float.</span>
00109 <span class="comment"> *</span>
00110 <span class="comment"> ***/</span>
00111 <span class="keyword">static</span> <span class="keywordtype">void</span> normalizeDecimalPoint(<span class="keywordtype">char</span>* <span class="keyword">const</span> toNormal);
00112
00113 <span class="comment">/***</span>
00114 <span class="comment"> * Support for Serialization/De-serialization</span>
00115 <span class="comment"> ***/</span>
00116 DECL_XSERIALIZABLE(XMLAbstractDoubleFloat)
00117
00118 protected:
00119
00120 <span class="comment">//</span>
00121 <span class="comment">// To be used by derived class exclusively</span>
00122 <span class="comment">//</span>
00123 XMLAbstractDoubleFloat(<a class="code" href="classMemoryManager.html">MemoryManager</a>* const manager = <a class="code" href="classXMLPlatformUtils.html">XMLPlatformUtils</a>::fgMemoryManager);
00124
00125 <span class="keywordtype">void</span> init(const XMLCh* const strValue);
00126
00140 static <span class="keywordtype">int</span> compareValues(const XMLAbstractDoubleFloat* const lValue
00141 , const XMLAbstractDoubleFloat* const rValue
00142 , <a class="code" href="classMemoryManager.html">MemoryManager</a>* const manager);
00143
00144 <span class="comment">//</span>
00145 <span class="comment">// to be overridden by derived class</span>
00146 <span class="comment">//</span>
00147 virtual <span class="keywordtype">void</span> checkBoundary(<span class="keywordtype">char</span>* const strValue) = 0;
00148
00149 <span class="keywordtype">void</span>
00150 convert(<span class="keywordtype">char</span>* const strValue);
00151
00152 private:
00153 <span class="comment">//</span>
00154 <span class="comment">// Unimplemented</span>
00155 <span class="comment">//</span>
00156 <span class="comment">// copy ctor</span>
00157 <span class="comment">// assignment ctor</span>
00158 <span class="comment">//</span>
00159 XMLAbstractDoubleFloat(const XMLAbstractDoubleFloat& toCopy);
00160 XMLAbstractDoubleFloat& operator=(const XMLAbstractDoubleFloat& toAssign);
00161
00162 <span class="keywordtype">void</span> normalizeZero(XMLCh* const);
00163
00164 inline <span class="keywordtype">bool</span> isSpecialValue() const;
00165
00166 static <span class="keywordtype">int</span> compareSpecial(const XMLAbstractDoubleFloat* const specialValue
00167 , <a class="code" href="classMemoryManager.html">MemoryManager</a>* const manager);
00168
00169 <span class="keywordtype">void</span> formatString();
00170
00171 protected:
<a name="l00172"></a><a class="code" href="classXMLAbstractDoubleFloat.html#p0">00172</a> <span class="keywordtype">double</span> fValue;
<a name="l00173"></a><a class="code" href="classXMLAbstractDoubleFloat.html#p1">00173</a> LiteralType fType;
<a name="l00174"></a><a class="code" href="classXMLAbstractDoubleFloat.html#p2">00174</a> <span class="keywordtype">bool</span> fDataConverted;
<a name="l00175"></a><a class="code" href="classXMLAbstractDoubleFloat.html#p3">00175</a> <span class="keywordtype">bool</span> fDataOverflowed;
00176
00177 private:
00178 <span class="keywordtype">int</span> fSign;
00179 XMLCh* fRawData;
00180
00181 <span class="comment">//</span>
00182 <span class="comment">// If the original string is not lexcially the same as the five</span>
00183 <span class="comment">// special value notations, and the value is converted to</span>
00184 <span class="comment">// special value due underlying platform restriction on data</span>
00185 <span class="comment">// representation, then this string is constructed and</span>
00186 <span class="comment">// takes the form "original_string (special_value_notation)", </span>
00187 <span class="comment">// otherwise it is empty.</span>
00188 <span class="comment">//</span>
00189 XMLCh* fFormattedString;
00190 <a class="code" href="classMemoryManager.html">MemoryManager</a>* fMemoryManager;
00191
00192 };
00193
00194 inline <span class="keywordtype">bool</span> XMLAbstractDoubleFloat::isSpecialValue()<span class="keyword"> const</span>
00195 <span class="keyword"></span>{
00196 <span class="keywordflow">return</span> (fType < SpecialTypeNum);
00197 }
00198
<a name="l00199"></a><a class="code" href="classXMLAbstractDoubleFloat.html#a5">00199</a> <span class="keyword">inline</span> <a class="code" href="classMemoryManager.html">MemoryManager</a>* <a class="code" href="classXMLAbstractDoubleFloat.html#a5">XMLAbstractDoubleFloat::getMemoryManager</a>()<span class="keyword"> const</span>
00200 <span class="keyword"></span>{
00201 <span class="keywordflow">return</span> fMemoryManager;
00202 }
00203
<a name="l00204"></a><a class="code" href="classXMLAbstractDoubleFloat.html#a6">00204</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classXMLAbstractDoubleFloat.html#a6">XMLAbstractDoubleFloat::isDataConverted</a>()<span class="keyword"> const</span>
00205 <span class="keyword"></span>{
00206 <span class="keywordflow">return</span> <a class="code" href="classXMLAbstractDoubleFloat.html#p2">fDataConverted</a>;
00207 }
00208
<a name="l00209"></a><a class="code" href="classXMLAbstractDoubleFloat.html#a7">00209</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classXMLAbstractDoubleFloat.html#a7">XMLAbstractDoubleFloat::isDataOverflowed</a>()<span class="keyword"> const</span>
00210 <span class="keyword"></span>{
00211 <span class="keywordflow">return</span> <a class="code" href="classXMLAbstractDoubleFloat.html#p3">fDataOverflowed</a>;
00212 }
00213
<a name="l00214"></a><a class="code" href="classXMLAbstractDoubleFloat.html#a8">00214</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classXMLAbstractDoubleFloat.html#a8">XMLAbstractDoubleFloat::getValue</a>()<span class="keyword"> const</span>
00215 <span class="keyword"></span>{
00216 <span class="keywordflow">return</span> <a class="code" href="classXMLAbstractDoubleFloat.html#p0">fValue</a>;
00217 }
00218
<a name="l00219"></a><a class="code" href="classXMLAbstractDoubleFloat.html#a9">00219</a> <span class="keyword">inline</span> <a class="code" href="classXMLAbstractDoubleFloat.html#w5">XMLAbstractDoubleFloat::LiteralType</a> <a class="code" href="classXMLAbstractDoubleFloat.html#a9">XMLAbstractDoubleFloat::getType</a>()<span class="keyword"> const</span>
00220 <span class="keyword"></span>{
00221 <span class="keywordflow">return</span> <a class="code" href="classXMLAbstractDoubleFloat.html#p1">fType</a>;
00222 }
00223
00224 <a class="code" href="XercesDefs_8hpp.html#a4">XERCES_CPP_NAMESPACE_END</a>
00225
00226 <span class="preprocessor">#endif</span>
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