?? xmemory.hpp
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/* * Copyright 2003,2004 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *//* * $Id: XMemory.hpp,v 1.7 2004/09/08 13:56:25 peiyongz Exp $ */#if !defined(XMEMORY_HPP)#define XMEMORY_HPP#include <xercesc/util/XercesDefs.hpp>#include <stdlib.h>XERCES_CPP_NAMESPACE_BEGINclass MemoryManager;/** * This class makes it possible to override the C++ memory management by * adding new/delete operators to this base class. * * This class is used in conjuction with the pluggable memory manager. It * allows applications to control Xerces memory management. */class XMLUTIL_EXPORT XMemory{public : // ----------------------------------------------------------------------- // The C++ memory management // ----------------------------------------------------------------------- /** @name The C++ memory management */ //@{ /** * This method overrides operator new * * @param size The requested memory size */ void* operator new(size_t size);#if defined(XML_VISUALCPP) /** * This method overrides the MFC debug version of the operator new * * @param size The requested memory size * @param file The file where the allocation was requested * @param line The line where the allocation was requested */ void* operator new(size_t size, const char* file, int line); /** * This method provides a matching delete for the MFC debug new * * @param p The pointer to the allocated memory * @param file The file where the allocation was requested * @param line The line where the allocation was requested */ void operator delete(void* p, const char* file, int line);#endif /** * This method overrides placement operator new * * @param size The requested memory size * @param memMgr An application's memory manager */ void* operator new(size_t size, MemoryManager* memMgr); /** * This method overrides operator delete * * @param p The pointer to the allocated memory */ void operator delete(void* p); //The Borland compiler is complaining about duplicate overloading of delete#if !defined(XML_BORLAND) /** * This method provides a matching delete for the placement new * * @param p The pointer to the allocated memory * @param memMgr An application's memory manager */ void operator delete(void* p, MemoryManager* memMgr);#endif //@}protected : // ----------------------------------------------------------------------- // Hidden Constructors // ----------------------------------------------------------------------- /** @name Constructor */ //@{ /** * Protected default constructor and copy constructor */ XMemory() { } XMemory(const XMemory&) { } //@}#if defined(XML_BORLAND) virtual ~XMemory() { }#endifprivate: // ----------------------------------------------------------------------- // Unimplemented operators // ----------------------------------------------------------------------- XMemory& operator=(const XMemory&);};XERCES_CPP_NAMESPACE_END#endif
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