mayown_ptr< T, N > Class Template Reference

#include <mayown_ptr.h>

Public Member Functions
bool	empty () const
T const *	get () const
bool	isOwn () const
	mayown_ptr (T *ip=nullptr)
	mayown_ptr (T const &ip)
	mayown_ptr (mayown_ptr &)=delete
	mayown_ptr (mayown_ptr &&rh)
T const &	operator* () const
T const *	operator-> () const
mayown_ptr &	operator= (mayown_ptr &)=delete
mayown_ptr &	operator= (mayown_ptr &&rh)
T const *	raw () const
T const *	release ()
void	reset ()
void	reset (T *ip)
void	reset (T const &ip)
	~mayown_ptr ()

Private Member Functions
void	destroy ()
void	markOwn ()
T const *	pointer () const

Private Attributes
T const *	p =nullptr

Detailed Description

template<typename T, int N = sizeof(T*)>
class mayown_ptr< T, N >

Definition at line 13 of file mayown_ptr.h.

Constructor & Destructor Documentation

template<typename T, int N = sizeof(T*)>

mayown_ptr< T, N >::mayown_ptr ( T *  ip = nullptr )

inlineexplicit

Definition at line 43 of file mayown_ptr.h.

References mayown_ptr< T, N >::markOwn().

: p(ip) { markOwn();}

template<typename T, int N = sizeof(T*)>

mayown_ptr< T, N >::mayown_ptr ( T const &  ip )

inlineexplicit

Definition at line 44 of file mayown_ptr.h.

: p(&ip) {}

template<typename T, int N = sizeof(T*)>

mayown_ptr< T, N >::~mayown_ptr ( )

inline

Definition at line 45 of file mayown_ptr.h.

References mayown_ptr< T, N >::destroy().

{ destroy();}

template<typename T, int N = sizeof(T*)>

mayown_ptr< T, N >::mayown_ptr ( mayown_ptr< T, N > &  )

delete

template<typename T, int N = sizeof(T*)>

mayown_ptr< T, N >::mayown_ptr ( mayown_ptr< T, N > &&  rh )

inline

Definition at line 47 of file mayown_ptr.h.

: p(rh.p) { rh.p=nullptr;} 

Member Function Documentation

template<typename T, int N = sizeof(T*)>

void mayown_ptr< T, N >::destroy ( )

inlineprivate

Definition at line 39 of file mayown_ptr.h.

References mayown_ptr< T, N >::isOwn(), and mayown_ptr< T, N >::pointer().

Referenced by mayown_ptr< T, N >::operator=(), mayown_ptr< T, N >::reset(), and mayown_ptr< T, N >::~mayown_ptr().

                 {
    if (isOwn()) delete const_cast<T*>(pointer());
  }

template<typename T, int N = sizeof(T*)>

bool mayown_ptr< T, N >::empty ( ) const

inline

Definition at line 58 of file mayown_ptr.h.

References mayown_ptr< T, N >::p.

{ return nullptr==p;}

template<typename T, int N = sizeof(T*)>

T const* mayown_ptr< T, N >::get ( ) const

inline

Definition at line 53 of file mayown_ptr.h.

References mayown_ptr< T, N >::pointer().

Referenced by Options.Options::__getitem__().

{ return pointer();}

template<typename T, int N = sizeof(T*)>

bool mayown_ptr< T, N >::isOwn ( ) const

inline

Definition at line 25 of file mayown_ptr.h.

References N, and mayown_ptr< T, N >::p.

Referenced by mayown_ptr< T, N >::destroy().

                     {
    unsigned char buff[N]; memcpy(buff,&p,N);
    return 1==(buff[N-1]&1);
  }

template<typename T, int N = sizeof(T*)>

void mayown_ptr< T, N >::markOwn ( )

inlineprivate

Definition at line 17 of file mayown_ptr.h.

References assert(), N, and mayown_ptr< T, N >::p.

Referenced by mayown_ptr< T, N >::mayown_ptr(), and mayown_ptr< T, N >::reset().

                 {
    if (nullptr==p) return;
    unsigned char buff[N]; memcpy(buff,&p,N);
    assert((buff[N-1]&1)==0);
    ++buff[N-1];
    memcpy(&p,buff,N);
  }

template<typename T, int N = sizeof(T*)>

T const& mayown_ptr< T, N >::operator* ( void  ) const

inline

Definition at line 51 of file mayown_ptr.h.

References mayown_ptr< T, N >::pointer().

{ return *pointer();}

template<typename T, int N = sizeof(T*)>

T const* mayown_ptr< T, N >::operator-> ( ) const

inline

Definition at line 52 of file mayown_ptr.h.

References mayown_ptr< T, N >::pointer().

{ return pointer();}    

template<typename T, int N = sizeof(T*)>

mayown_ptr& mayown_ptr< T, N >::operator= ( mayown_ptr< T, N > &  )

delete

template<typename T, int N = sizeof(T*)>

mayown_ptr& mayown_ptr< T, N >::operator= ( mayown_ptr< T, N > &&  rh )

inline

Definition at line 49 of file mayown_ptr.h.

References mayown_ptr< T, N >::destroy(), and mayown_ptr< T, N >::p.

{ destroy(); p=rh.p; rh.p=nullptr; return *this;}

template<typename T, int N = sizeof(T*)>

T const* mayown_ptr< T, N >::pointer ( ) const

inlineprivate

Definition at line 30 of file mayown_ptr.h.

References assert(), N, np, and mayown_ptr< T, N >::p.

Referenced by mayown_ptr< T, N >::destroy(), mayown_ptr< T, N >::get(), mayown_ptr< T, N >::operator*(), mayown_ptr< T, N >::operator->(), and mayown_ptr< T, N >::release().

                            {
    unsigned char buff[N]; memcpy(buff,&p,N);
    buff[N-1] &= 0xFE;
    assert((buff[N-1]&1)==0);
    T const * np;
    memcpy(&np,buff,N);
    return np;
  }

template<typename T, int N = sizeof(T*)>

T const* mayown_ptr< T, N >::raw ( ) const

inline

Definition at line 60 of file mayown_ptr.h.

References mayown_ptr< T, N >::p.

Referenced by operator==().

{ return p;}

template<typename T, int N = sizeof(T*)>

T const* mayown_ptr< T, N >::release ( )

inline

Definition at line 54 of file mayown_ptr.h.

References np, mayown_ptr< T, N >::p, and mayown_ptr< T, N >::pointer().

{ auto np=pointer(); p=nullptr; return np;}

template<typename T, int N = sizeof(T*)>

void mayown_ptr< T, N >::reset ( void  )

inline

Definition at line 55 of file mayown_ptr.h.

References mayown_ptr< T, N >::destroy(), and mayown_ptr< T, N >::p.

{ destroy(); p=nullptr;}              

template<typename T, int N = sizeof(T*)>

void mayown_ptr< T, N >::reset ( T *  ip )

inline

Definition at line 56 of file mayown_ptr.h.

References mayown_ptr< T, N >::destroy(), mayown_ptr< T, N >::markOwn(), and mayown_ptr< T, N >::p.

{ destroy(); p=ip; markOwn();}

template<typename T, int N = sizeof(T*)>

void mayown_ptr< T, N >::reset ( T const &  ip )

inline

Definition at line 57 of file mayown_ptr.h.

References mayown_ptr< T, N >::destroy(), and mayown_ptr< T, N >::p.

{ destroy(); p=&ip;}

Member Data Documentation

template<typename T, int N = sizeof(T*)>

T const* mayown_ptr< T, N >::p =nullptr

private

Definition at line 15 of file mayown_ptr.h.

Referenced by mayown_ptr< T, N >::empty(), mayown_ptr< T, N >::isOwn(), mayown_ptr< T, N >::markOwn(), mayown_ptr< T, N >::operator=(), mayown_ptr< T, N >::pointer(), mayown_ptr< T, N >::raw(), mayown_ptr< T, N >::release(), and mayown_ptr< T, N >::reset().