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#if !defined(__MY_SMART_PTR_TEMPLATE_H__)
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#define __MY_SMART_PTR_TEMPLATE_H__
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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//<2F>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ģ<EFBFBD><C4A3>
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template<typename TYPE>
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class RefPtr
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{
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8>ȫ<EFBFBD><C8AB>Ϊprivate<74><65><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ֱ<EFBFBD><D6B1>ʹ<EFBFBD>ø<EFBFBD><C3B8><EFBFBD>
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template<typename TYPE> friend class Sptr;
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RefPtr(TYPE *ptr):p(ptr), count(1) { }
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~RefPtr() { delete p; }
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TYPE *GetPtr(){return p;}
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int count; //<2F><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>
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TYPE *p; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
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};
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template<typename TYPE>
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class Sptr
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{
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public:
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Sptr(TYPE *ptr):rp(new RefPtr<TYPE>(ptr)) { } //<2F><><EFBFBD>캯<EFBFBD><ECBAAF>
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Sptr(const Sptr &sp):rp(sp.rp) { ++rp->count; } //<2F><><EFBFBD>ƹ<EFBFBD><C6B9>캯<EFBFBD><ECBAAF>
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Sptr& operator=(const Sptr& rhs)
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{ //<2F><><EFBFBD>ظ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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++rhs.rp->count; //<2F><><EFBFBD>Ƚ<EFBFBD><C8BD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31>
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if(--rp->count == 0) //Ȼ<><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>Ը<EFBFBD>ֵ
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delete rp;
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rp = rhs.rp;
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return *this;
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}
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~Sptr()
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{
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if(--rp->count == 0) //<2F><><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>Ϊ0ʱ<30><CAB1>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>룬<EFBFBD>Ӷ<EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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delete rp;
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}
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//<2F><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>Ϊ
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TYPE &operator*() { return *rp->p; }
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TYPE *operator->() { return rp->p; }
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const TYPE &operator*() const { return *rp->p; }
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const TYPE *operator->() const { return rp->p; }
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TYPE *GetPtr(){return rp->GetPtr();}//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
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bool IsNull()
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{
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if(rp->GetPtr())
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return false;
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else
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return true;
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}
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private:
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RefPtr<TYPE> *rp; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
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};
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#endif//__MY_SMART_PTR_TEMPLATE_H__
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