countedpointer.hpp

来自「IBM的解析xml的工具Xerces的源代码」· HPP 代码 · 共 99 行

/*
 * Copyright 1999-2000,2004 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.
 */

/*
 * $Log: CountedPointer.hpp,v $
 * Revision 1.4  2004/09/08 13:56:21  peiyongz
 * Apache License Version 2.0
 *
 * Revision 1.3  2003/05/16 06:01:52  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.2  2002/11/04 15:22:03  tng
 * C++ Namespace Support.
 *
 * Revision 1.1.1.1  2002/02/01 22:22:10  peiyongz
 * sane_include
 *
 * Revision 1.4  2000/03/02 19:54:39  roddey
 * This checkin includes many changes done while waiting for the
 * 1.1.0 code to be finished. I can't list them all here, but a list is
 * available elsewhere.
 *
 * Revision 1.3  2000/02/24 20:05:24  abagchi
 * Swat for removing Log from API docs
 *
 * Revision 1.2  2000/02/06 07:48:01  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.1.1.1  1999/11/09 01:04:13  twl
 * Initial checkin
 *
 * Revision 1.2  1999/11/08 20:45:06  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */


#if !defined(COUNTEDPOINTERTO_HPP)
#define COUNTEDPOINTERTO_HPP

#include <xercesc/util/NullPointerException.hpp>

XERCES_CPP_NAMESPACE_BEGIN

template <class T> class CountedPointerTo : public XMemory
{
public:
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    CountedPointerTo(const CountedPointerTo<T>& toCopy);
    CountedPointerTo(T* p = 0);
    ~CountedPointerTo();


    // -----------------------------------------------------------------------
    //  Operators
    // -----------------------------------------------------------------------
    CountedPointerTo<T>& operator=(const CountedPointerTo<T>& other);
    operator T*();
    const T* operator->() const;
    T* operator->();
    const T& operator*() const;
    T& operator*();


private:
    // -----------------------------------------------------------------------
    //  Data members
    //
    //  fPtr
    //      The pointer that we are counting. The T type must implement the
    //      addRef() and removeRef() APIs but it doesn't have to derive from
    //      any particular type.
    // -----------------------------------------------------------------------
    T*  fPtr;
};

XERCES_CPP_NAMESPACE_END

#if !defined(XERCES_TMPLSINC)
#include <xercesc/util/CountedPointer.c>
#endif

#endif