stdext::allocators::cache_suballoc< _Sz, _Nelts > Class Template Reference

Public Member Functions
	cache_suballoc ()
_DECLSPEC_ALLOCATOR void *	allocate (size_t _Count)
void	deallocate (void *_Ptr, size_t)
bool	equals (const cache_suballoc< _Sz, _Nelts > &) const

Private Attributes
freelist< _Sz, max_unbounded >	_Helper
char *	_Begin
char *	_End

Constructor & Destructor Documentation

template<size_t _Sz, size_t _Nelts = 20>

stdext::allocators::cache_suballoc< _Sz, _Nelts >::cache_suballoc ( )

inline

        : _Begin(0), _End(0)
        {   // construct with empty list
        }

Member Function Documentation

template<size_t _Sz, size_t _Nelts = 20>

_DECLSPEC_ALLOCATOR void* stdext::allocators::cache_suballoc< _Sz, _Nelts >::allocate ( size_t  _Count )

inline

        {   // pop from free list or suballocate
        void *_Res = _Helper.pop();
        if (_Res == 0)
            {   // free list empty, suballocate
            if (_Begin == _End)
                {   // no room in block, allocate new block
                if (_Count * _Nelts < sizeof (void *))
                    _Begin = (char*)::operator new(sizeof (void *));
                else
                    _Begin = (char*)::operator new(_Count * _Nelts);

                _End = _Begin + _Count * _Nelts;
                _Helper.allocated(_Nelts);
                }
            _Res = _Begin;
            _Begin += _Count;
            }
        return (_Res);
        }

template<size_t _Sz, size_t _Nelts = 20>

void stdext::allocators::cache_suballoc< _Sz, _Nelts >::deallocate ( void *  _Ptr, size_t    )

inline

        {   // push onto free list
        _Helper.push(_Ptr);
        }

template<size_t _Sz, size_t _Nelts = 20>

bool stdext::allocators::cache_suballoc< _Sz, _Nelts >::equals ( const cache_suballoc< _Sz, _Nelts > &  ) const

inline

        {   // report that caches can share data
        return (true);
        }

Member Data Documentation

template<size_t _Sz, size_t _Nelts = 20>

char* stdext::allocators::cache_suballoc< _Sz, _Nelts >::_Begin

private

template<size_t _Sz, size_t _Nelts = 20>

char* stdext::allocators::cache_suballoc< _Sz, _Nelts >::_End

private

template<size_t _Sz, size_t _Nelts = 20>

freelist<_Sz, max_unbounded> stdext::allocators::cache_suballoc< _Sz, _Nelts >::_Helper

private

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

• VS2017/inc/allocators