xmlabstractdoublefloat.hpp

基于属性证书的访问控制源代码,由c++编写,包括openssl,xercesc等

/*
 * 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",
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 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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 * 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/>.
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/*
 * $Id: XMLAbstractDoubleFloat.hpp,v 1.20 2004/01/29 11:48:46 cargilld Exp $
 * $Log: XMLAbstractDoubleFloat.hpp,v $
 * Revision 1.20  2004/01/29 11:48:46  cargilld
 * Code cleanup changes to get rid of various compiler diagnostic messages.
 *
 * Revision 1.19  2004/01/13 19:50:56  peiyongz
 * remove parseContent()
 *
 * Revision 1.17  2003/12/17 00:18:35  cargilld
 * Update to memory management so that the static memory manager (one used to call Initialize) is only for static data.
 *
 * Revision 1.16  2003/12/11 21:38:12  peiyongz
 * support for Canonical Representation for Datatype
 *
 * Revision 1.15  2003/10/15 14:50:01  peiyongz
 * Bugzilla#22821: locale-sensitive function used to validate 'double' type, patch
 * from [e-mail] (Jeff Sweeney)
 *
 * Revision 1.14  2003/09/23 18:16:07  peiyongz
 * Inplementation for Serialization/Deserialization
 *
 * Revision 1.13  2003/05/18 14:02:05  knoaman
 * Memory manager implementation: pass per instance manager.
 *
 * Revision 1.12  2003/05/16 06:01:53  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.11  2003/05/15 19:07:46  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.10  2003/05/09 15:13:46  peiyongz
 * Deprecated toString() in XMLNumber family
 *
 * Revision 1.9  2003/03/10 20:55:58  peiyongz
 * Schema Errata E2-40 double/float
 *
 * Revision 1.8  2003/02/02 23:54:43  peiyongz
 * getFormattedString() added to return original and converted value.
 *
 * Revision 1.7  2003/01/30 21:55:22  tng
 * Performance: create getRawData which is similar to toString but return the internal data directly, user is not required to delete the returned memory.
 *
 * Revision 1.6  2002/12/11 00:20:02  peiyongz
 * Doing businesss in value space. Converting out-of-bound value into special values.
 *
 * Revision 1.5  2002/11/04 15:22:05  tng
 * C++ Namespace Support.
 *
 * Revision 1.4  2002/03/06 19:13:12  peiyongz
 * Patch: more valid lexcial representation for positive/negative zero
 *
 * Revision 1.3  2002/03/01 18:47:37  peiyongz
 * fix: more valid lexcial representation forms for "neural zero"
 *
 * Revision 1.2  2002/02/20 18:17:02  tng
 * [Bug 5977] Warnings on generating apiDocs.
 *
 * Revision 1.1.1.1  2002/02/01 22:22:14  peiyongz
 * sane_include
 *
 * Revision 1.4  2001/11/28 15:39:26  peiyongz
 * return Type& for operator=
 *
 * Revision 1.3  2001/11/22 21:39:00  peiyongz
 * Allow "0.0" to be a valid lexcial representation of ZERO.
 *
 * Revision 1.2  2001/11/22 20:23:00  peiyongz
 * _declspec(dllimport) and inline warning C4273
 *
 * Revision 1.1  2001/11/19 21:33:42  peiyongz
 * Reorganization: Double/Float
 *
 *
 */

#ifndef XML_ABSTRACT_DOUBLE_FLOAT_HPP
#define XML_ABSTRACT_DOUBLE_FLOAT_HPP

#include <xercesc/util/XMLNumber.hpp>
#include <xercesc/util/PlatformUtils.hpp>

XERCES_CPP_NAMESPACE_BEGIN

/***
 * 3.2.5.1 Lexical representation
 *
 *   double values have a lexical representation consisting of a mantissa followed,
 *   optionally, by the character "E" or "e", followed by an exponent.
 *
 *   The exponent 穖ust