| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache\@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation, and was |
| * originally based on software copyright (c) 2001 International |
| * Business Machines, Inc., http://www.ibm.com . For more information |
| * on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| /* |
| * $Id$ |
| */ |
| |
| #ifndef XML_BIGINTEGER_HPP |
| #define XML_BIGINTEGER_HPP |
| |
| #include <xercesc/util/XercesDefs.hpp> |
| #include <xercesc/util/XMLString.hpp> |
| |
| class XMLUTIL_EXPORT XMLBigInteger |
| { |
| public: |
| |
| /** |
| * Constructs a newly allocated <code>XMLBigInteger</code> object that |
| * represents the value represented by the string. The string is |
| * converted to an int value as if by the <code>valueOf</code> method. |
| * |
| * @param strValue the <code>String</code> to be converted to an |
| * <code>XMLBigInteger</code>. |
| * @exception NumberFormatException if the <code>String</code> does not |
| * contain a parsable XMLBigInteger. |
| */ |
| |
| XMLBigInteger(const XMLCh* const strValue); |
| |
| ~XMLBigInteger(); |
| |
| XMLBigInteger(const XMLBigInteger& toCopy); |
| |
| static void parseBigInteger(const XMLCh* const toConvert |
| , XMLCh* const retBuffer |
| , int& signValue); |
| |
| static int compareValues(const XMLBigInteger* const lValue |
| ,const XMLBigInteger* const rValue); |
| |
| |
| void multiply(const unsigned int byteToShift); |
| |
| void divide(const unsigned int byteToShift); |
| |
| int getTotalDigit() const; |
| |
| /** |
| * Return a copy of the fMagnitue. |
| * A leading sign is ALWAYS in place and the caller of this method |
| * is responsible for the de-allocation of the memory. |
| */ |
| XMLCh* toString() const; |
| |
| /** |
| * Compares this object to the specified object. |
| * The result is <code>true</code> if and only if the argument is not |
| * <code>null</code> and is an <code>XMLBigInteger</code> object that contains |
| * the same <code>int</code> value as this object. |
| * |
| * @param toCompare the object to compare with. |
| * @return <code>true</code> if the objects are the same; |
| * <code>false</code> otherwise. |
| */ |
| bool operator==(const XMLBigInteger& toCompare) const; |
| |
| /** |
| * Returns the signum function of this number (i.e., -1, 0 or 1 as |
| * the value of this number is negative, zero or positive). |
| */ |
| int getSign() const; |
| |
| int intValue() const; |
| |
| private: |
| |
| void setSign(int); |
| |
| /* |
| * The number is internally stored in "minimal" sign-fMagnitude format |
| * (i.e., no BigIntegers have a leading zero byte in their magnitudes). |
| * Zero is represented with a signum of 0 (and a zero-length fMagnitude). |
| * Thus, there is exactly one representation for each value. |
| */ |
| // ----------------------------------------------------------------------- |
| // Private data members |
| // |
| // fSign |
| // to represent the sign of the number. |
| // |
| // fMagnitude |
| // the buffer holding the number. |
| // |
| // ----------------------------------------------------------------------- |
| |
| int fSign; |
| XMLCh* fMagnitude; //null terminated |
| |
| }; |
| |
| inline int XMLBigInteger::getSign() const |
| { |
| return fSign; |
| } |
| |
| inline int XMLBigInteger::getTotalDigit() const |
| { |
| return ((getSign() ==0) ? 0 : XMLString::stringLen(fMagnitude)); |
| } |
| |
| inline bool XMLBigInteger::operator==(const XMLBigInteger& toCompare) const |
| { |
| return ( compareValues(this, &toCompare) ==0 ? true : false); |
| } |
| |
| inline void XMLBigInteger::setSign(int newSign) |
| { |
| fSign = newSign; |
| } |
| |
| #endif |