_Yarn< _Elem > Class Template Reference

Public Types
typedef _Yarn< _Elem >	_Myt

Public Member Functions
__CLR_OR_THIS_CALL	_Yarn ()
__CLR_OR_THIS_CALL	_Yarn (const _Myt &_Right)
__CLR_OR_THIS_CALL	_Yarn (const _Elem *_Right)
_Myt &__CLR_OR_THIS_CALL	operator= (const _Myt &_Right)
_Myt &__CLR_OR_THIS_CALL	operator= (const _Elem *_Right)
__CLR_OR_THIS_CALL	~_Yarn () _NOEXCEPT
bool __CLR_OR_THIS_CALL	empty () const
_Ret_z_ const _Elem *__CLR_OR_THIS_CALL	c_str () const
bool __CLR_OR_THIS_CALL	_Empty () const
_Ret_z_ const _Elem *__CLR_OR_THIS_CALL	_C_str () const

Private Member Functions
void __CLR_OR_THIS_CALL	_Tidy ()

Private Attributes
_Elem *	_Myptr
_Elem	_Nul

Member Typedef Documentation

template<class _Elem>

typedef _Yarn<_Elem> _Yarn< _Elem >::_Myt

Constructor & Destructor Documentation

template<class _Elem>

__CLR_OR_THIS_CALL _Yarn< _Elem >::_Yarn ( )

inline

        : _Myptr(0), _Nul(0)
        {   // default construct
        }

template<class _Elem>

__CLR_OR_THIS_CALL _Yarn< _Elem >::_Yarn ( const _Myt &  _Right )

inline

        : _Myptr(0), _Nul(0)
        {   // construct from _Yarn
        *this = _Right;
        }

template<class _Elem>

__CLR_OR_THIS_CALL _Yarn< _Elem >::_Yarn ( const _Elem *  _Right )

inline

        : _Myptr(0), _Nul(0)
        {   // construct from NTBS
        *this = _Right;
        }

template<class _Elem>

__CLR_OR_THIS_CALL _Yarn< _Elem >::~_Yarn ( )

inline

        {   // destroy the object
        _Tidy();
        }

Member Function Documentation

template<class _Elem>

_Ret_z_ const _Elem* __CLR_OR_THIS_CALL _Yarn< _Elem >::_C_str ( ) const

inline

        {   // return NTBS
        return (_Myptr != 0 ? _Myptr : &_Nul);
        }

template<class _Elem>

bool __CLR_OR_THIS_CALL _Yarn< _Elem >::_Empty ( ) const

inline

        {   // test if empty string
        return (_Myptr == 0);
        }

template<class _Elem>

void __CLR_OR_THIS_CALL _Yarn< _Elem >::_Tidy ( )

inlineprivate

        {   // discard any string
        if (_Myptr != 0)

 #ifdef _DEBUG
            _free_dbg(_Myptr, _CRT_BLOCK);

 #else /* _DEBUG */
            _CSTD free(_Myptr);
 #endif /* _DEBUG */

        _Myptr = 0;
        }

template<class _Elem>

_Ret_z_ const _Elem* __CLR_OR_THIS_CALL _Yarn< _Elem >::c_str ( ) const

inline

        {   // return NTBS
        return (_Myptr != 0 ? _Myptr : &_Nul);
        }

template<class _Elem>

bool __CLR_OR_THIS_CALL _Yarn< _Elem >::empty ( ) const

inline

        {   // test if empty string
        return (_Myptr == 0);
        }

template<class _Elem>

_Myt& __CLR_OR_THIS_CALL _Yarn< _Elem >::operator= ( const _Myt &  _Right )

inline

        {   // assign from _Yarn
        return (*this = _Right._Myptr);
        }

template<class _Elem>

_Myt& __CLR_OR_THIS_CALL _Yarn< _Elem >::operator= ( const _Elem *  _Right )

inline

        {   // assign from NTBS
        if (_Myptr != _Right)
            {   // new value, discard old and copy new
            _Tidy();

            if (_Right != 0)
                {   // new is not empty, copy it
                const _Elem *_Ptr = _Right;
                while (*_Ptr != (_Elem)0)
                    ++_Ptr;
                size_t _Count = ((const char *)++_Ptr - (const char *)_Right);

 #ifdef _DEBUG
                _Myptr = (_Elem *)_malloc_dbg(_Count, _CRT_BLOCK,
                    __FILE__, __LINE__);

 #else /* _DEBUG */
                _Myptr = (_Elem *)_CSTD malloc(_Count);
 #endif /* _DEBUG */

                if (_Myptr != 0)
                    _CSTD memcpy(_Myptr, _Right, _Count);
                }
            }

        return (*this);
        }

Member Data Documentation

template<class _Elem>

_Elem* _Yarn< _Elem >::_Myptr

private

template<class _Elem>

_Elem _Yarn< _Elem >::_Nul

private

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The documentation for this class was generated from the following file:

• VS2017/inc/xutility