Analysis of Auto_ptr source code under VC and Linux

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1.vctemplate<class _ty>class auto_ptr{public:typedef _ty element_type;auto_ptr (_Ty  *_p = 0)  : _owns (_p != 0),  _ptr (_p) {}//copy construction    _y management _Owns  = false  after release, assign the pointer to the past auto_ptr (const auto_ptr<_ty>& _y)  : _owns (_y._ owns),  _ptr (_y.release ()) {}auto_ptr<_ty>& operator= (const auto_ptr<_ty>&  _y)  _throw0 () {if (this != &_y)//Prevent Word assignment {   if  (_ptr != _ Y.get ())    {   if  (_owns) delete _ptr;//when owns is true, release the space it refers to as Ptr     _Owns = _Y._Owns;    }   else if  (_y._owns)  _owns = true;   _ptr = _y.release ();//}return  (*this);  }~ Auto_ptr () {///The destructor is called at the end of the program, freeing Space if  (_owns) delete _ptr;} Overload * After having a similar access form to the pointer _ty& operator* ()  const _throw0 () {return  (*get ());} _ty *operator-> ()  const _throw0 () { return  (get ());  }_ty *get ()   Const _throw0 () {return  (_ptr);} _ty *release ()  const _throw0 ()//Just set the owns to false without changing the pointer to {((auto_ptr<_ty> *) this) _owns = false;return  (_ptr); }private:bool _owns;_ty *_ptr;}; Int main () {    int *p =  (int *) malloc (sizeof (int)); *p =  3;        int *q =  (int *) malloc (sizeof (int) ); *q = 5;auto_ptr<int> pa (P); AUTO_PTR&LT;INT&GT;&NBSP;PB (q);p a = pb;cout< <*pa<<endl;//at this time the output is 5cout<<*pb<<endl;//output 5    return 0;} such as 2.linux

template<class _ty>class auto_ptr{       public:                 explicit auto_ PTR (_ty *p = 0): _m_ptr (P) {}~auto_ptr () {    delete _m_ptr;} Auto_ptr (auto_ptr<_ty> &_y): _m_ptr (_y.release ()) {}_ty& operator * () {     return *_m_ptr;} _ty& operator -> () {    return  (*this)->_M_Ptr;} auto_ptr<_ty> &operator = (auto_ptr<_ty> & _y)//Difference {                     reset (_ Y.release ());       return *this;} _ty* release () {                      _ty *_tmp = _M_Ptr;                      _m_ptr = 0;//linux the pointer to null, if Access transfer permission     return  _tmp;} Void reset (_ty *_ptr = 0)//Reset the management of the pointer {   _ty * _pt = _m_ ptr;                    if (_ptr!=_pt)    {delete _pt;//Delete the space of the front pointer first to avoid a memory leak    }                    _m _ptr = _ptr;} private:_ty* _m_ptr;//and VC under different is no permission flag};

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PB even the opportunity to access also lost .....

If there are errors, welcome the predecessors to guide, hey.

Analysis of Auto_ptr source code under VC and Linux