C++模板类的用法实例

//#include "StdAfx.h #ifndef __AFXTLS_H__ #define __AFXTLS_H__ #include <Windows.h> class CSimpleList { public:   CSimpleList(int nNextOffset=0);   void Construct(int nNextOffset);   //接口   BOOL IsEmpty() const;   void AddHead(void *p);   void RemoveAll();   void* GetHead() const;   void* GetNext(void* preElement) const;   BOOL Remove(void* p);    //为实现接口所需的成员   void  *m_pHead;   size_t m_nextOffset;   void** GetNextPtr(void* preElement) const; };  //类的内联函数 inline CSimpleList::CSimpleList(int nNextOffset)   {m_pHead = NULL; m_nextOffset = nNextOffset;  }  inline void CSimpleList::Construct(int nNextOffset)   {m_nextOffset = nNextOffset;  }  inline BOOL CSimpleList::IsEmpty() const {   return m_pHead==NULL; } //inline void AddHead(void *p) //{ // //} inline void CSimpleList::RemoveAll() {   m_pHead = NULL; } inline void* CSimpleList::GetHead() const {   return m_pHead; } inline void* CSimpleList::GetNext(void* preElement) const {   return *GetNextPtr(preElement); } //inline BOOL CSimpleList::Remove(void* p) //{ // //} inline void**  CSimpleList::GetNextPtr(void* preElement) const {   return (void**)((BYTE*)preElement+m_nextOffset); }   //定义模板类 template<class TYPE>  class CTypedSimpleList:public CSimpleList { public:   CTypedSimpleList(int nNextOffset=0)     :CSimpleList(nNextOffset){}   void Construct(int nNextOffset);   //接口   void AddHead(TYPE p)   {     CSimpleList::AddHead((void*)p);   }   TYPE GetHead()   {     return (TYPE)CSimpleList::GetHead();   }   TYPE GetNext(TYPE preElement)   {     return (TYPE)CSimpleList::GetNext((void*)preElement);   }   BOOL Remove(TYPE p)   {     return CSimpleList::Remove(p);   }      //直接引用类的对象会调用此函数   operator TYPE()   {     return (TYPE)CSimpleList::GetHead();   } }; #endif 

//测试模板类   MyThreadData* pTempData;   CTypedSimpleList<MyThreadData*> templateList;   list.Construct(offsetof(MyThreadData, pNext));   //向链表中加数据   for (int i=100;i<110;i++)   {     pTempData = new MyThreadData;     pTempData->nShortData = i;     templateList.AddHead(pTempData);   }    //遍历链表，释放对象占用的资源   pTempData = templateList;   while (pTempData)   {     MyThreadData* pNextTempData = pTempData->pNext;     printf("TemplateDateList=%d/n",pTempData->nShortData);     delete pTempData;     pTempData = pNextTempData;   }