00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * Copyright (c) 2001 The Apache Software Foundation. All rights 00005 * reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 00014 * 2. Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in 00016 * the documentation and/or other materials provided with the 00017 * distribution. 00018 * 00019 * 3. The end-user documentation included with the redistribution, 00020 * if any, must include the following acknowledgment: 00021 * "This product includes software developed by the 00022 * Apache Software Foundation (http://www.apache.org/)." 00023 * Alternately, this acknowledgment may appear in the software itself, 00024 * if and wherever such third-party acknowledgments normally appear. 00025 * 00026 * 4. The names "Xerces" and "Apache Software Foundation" must 00027 * not be used to endorse or promote products derived from this 00028 * software without prior written permission. For written 00029 * permission, please contact apache\@apache.org. 00030 * 00031 * 5. Products derived from this software may not be called "Apache", 00032 * nor may "Apache" appear in their name, without prior written 00033 * permission of the Apache Software Foundation. 00034 * 00035 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00036 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00037 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00038 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00039 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00040 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00041 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00042 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00043 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00044 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00045 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00046 * SUCH DAMAGE. 00047 * ==================================================================== 00048 * 00049 * This software consists of voluntary contributions made by many 00050 * individuals on behalf of the Apache Software Foundation, and was 00051 * originally based on software copyright (c) 2001 International 00052 * Business Machines, Inc., http://www.ibm.com . For more information 00053 * on the Apache Software Foundation, please see 00054 * <http://www.apache.org/>. 00055 */ 00056 00057 /* 00058 * $Id: XMLBigInteger.hpp,v 1.1 2002/05/11 21:17:24 bhavani Exp $ 00059 */ 00060 00061 #ifndef XML_BIGINTEGER_HPP 00062 #define XML_BIGINTEGER_HPP 00063 00064 #include <xercesc/util/XercesDefs.hpp> 00065 #include <xercesc/util/XMLString.hpp> 00066 00067 class XMLUTIL_EXPORT XMLBigInteger 00068 { 00069 public: 00070 00082 XMLBigInteger(const XMLCh* const strValue); 00083 00084 ~XMLBigInteger(); 00085 00086 XMLBigInteger(const XMLBigInteger& toCopy); 00087 00088 static void parseBigInteger(const XMLCh* const toConvert 00089 , XMLCh* const retBuffer 00090 , int& signValue); 00091 00092 static int compareValues(const XMLBigInteger* const lValue 00093 ,const XMLBigInteger* const rValue); 00094 00095 00096 void multiply(const unsigned int byteToShift); 00097 00098 void divide(const unsigned int byteToShift); 00099 00100 int getTotalDigit() const; 00101 00107 XMLCh* toString() const; 00108 00119 bool operator==(const XMLBigInteger& toCompare) const; 00120 00125 int getSign() const; 00126 00127 int intValue() const; 00128 00129 private: 00130 00131 void setSign(int); 00132 00133 /* 00134 * The number is internally stored in "minimal" sign-fMagnitude format 00135 * (i.e., no BigIntegers have a leading zero byte in their magnitudes). 00136 * Zero is represented with a signum of 0 (and a zero-length fMagnitude). 00137 * Thus, there is exactly one representation for each value. 00138 */ 00139 // ----------------------------------------------------------------------- 00140 // Private data members 00141 // 00142 // fSign 00143 // to represent the sign of the number. 00144 // 00145 // fMagnitude 00146 // the buffer holding the number. 00147 // 00148 // ----------------------------------------------------------------------- 00149 00150 int fSign; 00151 XMLCh* fMagnitude; //null terminated 00152 00153 }; 00154 00155 inline int XMLBigInteger::getSign() const 00156 { 00157 return fSign; 00158 } 00159 00160 inline int XMLBigInteger::getTotalDigit() const 00161 { 00162 return ((getSign() ==0) ? 0 : XMLString::stringLen(fMagnitude)); 00163 } 00164 00165 inline bool XMLBigInteger::operator==(const XMLBigInteger& toCompare) const 00166 { 00167 return ( compareValues(this, &toCompare) ==0 ? true : false); 00168 } 00169 00170 inline void XMLBigInteger::setSign(int newSign) 00171 { 00172 fSign = newSign; 00173 } 00174 00175 #endif