_Buf< _Elem > Struct Template Reference

Public Member Functions
	_Buf ()
	~_Buf () _NOEXCEPT
unsigned int	_Size () const
_Elem	_At (unsigned int _Idx) const
const _Elem *	_Str () const
void	_Insert (_Elem _Ch)
_Elem	_Del ()
template<class _FwdIt >
void	_Insert (_FwdIt _First, _FwdIt _Last)

Private Member Functions
void	_Expand (unsigned int _Len)

Private Attributes
unsigned int	_Sz
unsigned int	_Nchrs
_Elem *	_Chrs

Constructor & Destructor Documentation

template<class _Elem>

_Buf< _Elem >::_Buf ( )

inline

        : _Sz(0), _Nchrs(0), _Chrs(0)
        {   // construct
        }

template<class _Elem>

_Buf< _Elem >::~_Buf ( )

inline

        {   // destroy
        free(_Chrs);
        }

Member Function Documentation

template<class _Elem>

_Elem _Buf< _Elem >::_At ( unsigned int  _Idx ) const

inline

        {   // return character at _Idx
 #if _ITERATOR_DEBUG_LEVEL == 2
        if (_Nchrs <= _Idx)
            {
            _DEBUG_ERROR("regex buffer subscript out of range");
            }
 #else /* _ITERATOR_DEBUG_LEVEL == 2 */
        _SCL_SECURE_VALIDATE_RANGE(_Idx < _Nchrs);
 #endif /* _ITERATOR_DEBUG_LEVEL == 2 */

        return (_Chrs[_Idx]);
        }

template<class _Elem>

_Elem _Buf< _Elem >::_Del ( )

inline

        {   // remove and return last character
        return (_Chrs[--_Nchrs]);
        }

template<class _Elem>

void _Buf< _Elem >::_Expand ( unsigned int  _Len )

inlineprivate

        {   // expand buffer to hold _Len characters
        _Elem *_Tmp = (_Elem *)realloc(_Chrs, _Len * sizeof (_Elem));
        if (!_Tmp)
            _Xbad_alloc();
        _Chrs = _Tmp;
        _Sz = _Len;
        }

template<class _Elem>

void _Buf< _Elem >::_Insert ( _Elem  _Ch )

inline

        {   // append _Ch
        if (_Sz <= _Nchrs)
            _Expand(_Nchrs + _Buf_incr);
        _Chrs[_Nchrs++] = _Ch;
        }

template<class _Elem>

template<class _FwdIt >

void _Buf< _Elem >::_Insert ( _FwdIt  _First, _FwdIt  _Last  )

inline

        {   // append multiple characters
        while (_First != _Last)
            _Insert(*_First++);
        }

template<class _Elem>

unsigned int _Buf< _Elem >::_Size ( ) const

inline

        {   // return number of characters held in buffer
        return (_Nchrs);
        }

template<class _Elem>

const _Elem* _Buf< _Elem >::_Str ( ) const

inline

        {   // return pointer to first character
        return (_Chrs);
        }

Member Data Documentation

template<class _Elem>

_Elem* _Buf< _Elem >::_Chrs

private

template<class _Elem>

unsigned int _Buf< _Elem >::_Nchrs

private

template<class _Elem>

unsigned int _Buf< _Elem >::_Sz

private

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

• VS2017/inc/regex