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// memory standard header #pragma once #ifndef _MEMORY_ #define _MEMORY_ #include <iterator> #include <xmemory>
#pragma pack(push,8) #pragma warning(push,3) _STD_BEGIN
// TEMPLATE FUNCTION get_temporary_buffer template<class _Ty> inline pair<_Ty _FARQ *, _PDFT> get_temporary_buffer(_PDFT _Count) { // get raw temporary buffer of up to _Count elements _Ty _FARQ *_Pbuf;
for (_Pbuf = 0; 0 < _Count; _Count /= 2) if ((_Pbuf = (_Ty _FARQ *)operator new( (_SIZT)_Count * sizeof (_Ty), nothrow)) != 0) break;
return (pair<_Ty _FARQ *, _PDFT>(_Pbuf, _Count)); }
// TEMPLATE FUNCTION return_temporary_buffer template<class _Ty> inline void return_temporary_buffer(_Ty *_Pbuf) { // delete raw temporary buffer operator delete(_Pbuf); }
// TEMPLATE FUNCTION uninitialized_copy template<class _InIt, class _FwdIt> inline _FwdIt uninitialized_copy(_InIt _First, _InIt _Last, _FwdIt _Dest) { // copy [_First, _Last) to raw _Dest return (_Uninit_copy(_First, _Last, _Dest, _Ptr_cat(_First, _Dest))); }
template<class _InIt, class _FwdIt> inline _FwdIt _Uninit_copy(_InIt _First, _InIt _Last, _FwdIt _Dest, _Nonscalar_ptr_iterator_tag) { // copy [_First, _Last) to raw _Dest, arbitrary type _FwdIt _Next = _Dest;
_TRY_BEGIN for (; _First != _Last; ++_Dest, ++_First) _Construct(&*_Dest, *_First); _CATCH_ALL for (; _Next != _Dest; ++_Next) _Destroy(&*_Next); _RERAISE; _CATCH_END return (_Dest); }
template<class _Ty> inline _Ty *_Uninit_copy(const _Ty *_First, const _Ty *_Last, _Ty *_Dest, _Scalar_ptr_iterator_tag) { // copy [_First, _Last) to raw _Dest, scalar type size_t _Count = (size_t)(_Last - _First); return ((_Ty *)memmove(&*_Dest, &*_First, _Count * sizeof (*_First)) + _Count); // NB: non-overlapping move }
// TEMPLATE FUNCTION _Uninitialized_copy WITH ALLOCATOR template<class _InIt, class _FwdIt, class _Alloc> inline _FwdIt _Uninitialized_copy(_InIt _First, _InIt _Last, _FwdIt _Dest, _Alloc& _Al) { // copy [_First, _Last) to raw _Dest, using _Al return (_Uninit_copy(_First, _Last, _Dest, _Al, _Ptr_cat(_First, _Dest))); }
template<class _InIt, class _FwdIt, class _Alloc> inline _FwdIt _Uninit_copy(_InIt _First, _InIt _Last, _FwdIt _Dest, _Alloc& _Al, _Nonscalar_ptr_iterator_tag) { // copy [_First, _Last) to raw _Dest, using _Al, arbitrary type _FwdIt _Next = _Dest;
_TRY_BEGIN for (; _First != _Last; ++_Dest, ++_First) _Al.construct(_Dest, *_First); _CATCH_ALL for (; _Next != _Dest; ++_Next) _Al.destroy(_Next); _RERAISE; _CATCH_END return (_Dest); }
template<class _Ty> inline _Ty *_Uninit_copy(const _Ty *_First, const _Ty *_Last, _Ty *_Dest, allocator<_Ty>&, _Scalar_ptr_iterator_tag) { // copy [_First, _Last) to raw _Dest, scalar type size_t _Count = (size_t)(_Last - _First); return ((_Ty *)memmove(&*_Dest, &*_First, _Count * sizeof (*_First)) + _Count); // NB: non-overlapping move }
// TEMPLATE FUNCTION uninitialized_fill template<class _FwdIt, class _Tval> inline void uninitialized_fill(_FwdIt _First, _FwdIt _Last, const _Tval& _Val) { // copy _Val throughout raw [_First, _Last) _Uninit_fill(_First, _Last, _Val, _Ptr_cat(_First, _First)); }
template<class _FwdIt, class _Tval> inline void _Uninit_fill(_FwdIt _First, _FwdIt _Last, const _Tval& _Val, _Nonscalar_ptr_iterator_tag) { // copy _Val throughout raw [_First, _Last), arbitrary type _FwdIt _Next = _First;
_TRY_BEGIN for (; _First != _Last; ++_First) _Construct(&*_First, _Val); _CATCH_ALL for (; _Next != _First; ++_Next) _Destroy(&*_Next); _RERAISE; _CATCH_END }
template<class _Ty, class _Tval> inline void _Uninit_fill(_Ty *_First, _Ty *_Last, const _Tval& _Val, _Scalar_ptr_iterator_tag) { // copy _Val throughout raw [_First, _Last), scalar type std::fill(_First, _Last, _Val); }
// TEMPLATE FUNCTION uninitialized_fill_n template<class _FwdIt, class _Diff, class _Tval> inline void uninitialized_fill_n(_FwdIt _First, _Diff _Count, const _Tval& _Val) { // copy _Count *_Val to raw _First _Uninit_fill_n(_First, _Count, _Val, _Ptr_cat(_First, _First)); }
template<class _FwdIt, class _Diff, class _Tval> inline void _Uninit_fill_n(_FwdIt _First, _Diff _Count, const _Tval& _Val, _Nonscalar_ptr_iterator_tag) { // copy _Count *_Val to raw _First, arbitrary type _FwdIt _Next = _First;
_TRY_BEGIN for (; 0 < _Count; --_Count, ++_First) _Construct(&*_First, _Val); _CATCH_ALL for (; _Next != _First; ++_Next) _Destroy(&*_Next); _RERAISE; _CATCH_END }
template<class _Ty, class _Diff, class _Tval> inline void _Uninit_fill_n(_Ty *_First, _Diff _Count, const _Tval& _Val, _Scalar_ptr_iterator_tag) { // copy _Count *_Val to raw _First, scalar type std::fill_n(_First, _Count, _Val); }
// TEMPLATE FUNCTION _Uninitialized_fill_n WITH ALLOCATOR template<class _FwdIt, class _Diff, class _Tval, class _Alloc> inline void _Uninitialized_fill_n(_FwdIt _First, _Diff _Count, const _Tval& _Val, _Alloc& _Al) { // copy _Count *_Val to raw _First, using _Al _Uninit_fill_n(_First, _Count, _Val, _Al, _Ptr_cat(_First, _First)); }
template<class _FwdIt, class _Diff, class _Tval, class _Alloc> inline void _Uninit_fill_n(_FwdIt _First, _Diff _Count, const _Tval& _Val, _Alloc& _Al, _Nonscalar_ptr_iterator_tag) { // copy _Count *_Val to raw _First, using _Al, arbitrary type _FwdIt _Next = _First;
_TRY_BEGIN for (; 0 < _Count; --_Count, ++_First) _Al.construct(_First, _Val); _CATCH_ALL for (; _Next != _First; ++_Next) _Al.destroy(_Next); _RERAISE; _CATCH_END }
template<class _Ty, class _Diff, class _Tval> inline void _Uninit_fill_n(_Ty *_First, _Diff _Count, const _Tval& _Val, allocator<_Ty>&, _Scalar_ptr_iterator_tag) { // copy _Count *_Val to raw _First, using _Al, scalar type fill_n(_First, _Count, _Val); }
// TEMPLATE CLASS raw_storage_iterator template<class _FwdIt, class _Ty> class raw_storage_iterator : public _Outit { // wrap stores to raw buffer as output iterator public: typedef _FwdIt iterator_type; // retained typedef _FwdIt iter_type; // retained typedef _Ty element_type; // retained
explicit raw_storage_iterator(_FwdIt _First) : _Next(_First) { // construct with iterator }
raw_storage_iterator<_FwdIt, _Ty>& operator*() { // pretend to return designated value return (*this); }
raw_storage_iterator<_FwdIt, _Ty>& operator=(const _Ty& _Val) { // construct value designated by stored iterator _Construct(&*_Next, _Val); return (*this); }
raw_storage_iterator<_FwdIt, _Ty>& operator++() { // preincrement ++_Next; return (*this); }
raw_storage_iterator<_FwdIt, _Ty> operator++(int) { // postincrement raw_storage_iterator<_FwdIt, _Ty> _Ans = *this; ++_Next; return (_Ans); }
private: _FwdIt _Next; // the stored iterator };
// TEMPLATE CLASS _Temp_iterator template<class _Ty> class _Temp_iterator : public _Outit { // wrap stores to temporary buffer as output iterator public: typedef _Ty _FARQ *_Pty;
_Temp_iterator(_PDFT _Count = 0) { // construct from desired temporary buffer size pair<_Pty, _PDFT> _Pair = std::get_temporary_buffer<_Ty>(_Count); _Buf._Begin = _Pair.first; _Buf._Current = _Pair.first; _Buf._Hiwater = _Pair.first; _Buf._Size = _Pair.second; _Pbuf = &_Buf; }
_Temp_iterator(const _Temp_iterator<_Ty>& _Right) { // construct from _Right (share active buffer) _Buf._Begin = 0; // clear stored buffer, to be tidy _Buf._Current = 0; _Buf._Hiwater = 0; _Buf._Size = 0; *this = _Right; }
~_Temp_iterator() { // destroy the object if (_Buf._Begin != 0) { // destroy any constructed elements in buffer for (_Pty _Next = _Buf._Begin; _Next != _Buf._Hiwater; ++_Next) _Destroy(&*_Next); std::return_temporary_buffer(_Buf._Begin); } }
_Temp_iterator<_Ty>& operator=(const _Temp_iterator<_Ty>& _Right) { // assign _Right (share active buffer) _Pbuf = _Right._Pbuf; return (*this); }
_Temp_iterator<_Ty>& operator=(const _Ty& _Val) { // assign or construct value into active buffer, and increment if (_Pbuf->_Current < _Pbuf->_Hiwater) *_Pbuf->_Current++ = _Val; // below high water mark, assign else { // above high water mark, construct _Construct(&*_Pbuf->_Current, _Val); _Pbuf->_Hiwater = ++_Pbuf->_Current; } return (*this); }
_Temp_iterator<_Ty>& operator*() { // pretend to return designated value return (*this); }
_Temp_iterator<_Ty>& operator++() { // pretend to preincrement return (*this); }
_Temp_iterator<_Ty>& operator++(int) { // pretend to postincrement return (*this); }
_Temp_iterator<_Ty>& _Init() { // set pointer at beginning of buffer _Pbuf->_Current = _Pbuf->_Begin; return (*this); }
_Pty _First() const { // return pointer to beginning of buffer return (_Pbuf->_Begin); }
_Pty _Last() const { // return pointer past end of buffer contents return (_Pbuf->_Current); }
_PDFT _Maxlen() const { // return size of buffer return (_Pbuf->_Size); }
private: struct _Bufpar { // control information for a temporary buffer _Pty _Begin; // pointer to beginning of buffer _Pty _Current; // pointer to next available element _Pty _Hiwater; // pointer to first unconstructed element _PDFT _Size; // length of buffer }; _Bufpar _Buf; // buffer control stored in iterator _Bufpar *_Pbuf; // pointer to active buffer control };
// TEMPLATE CLASS auto_ptr template<class _Ty> class auto_ptr;
template<class _Ty> struct auto_ptr_ref { // proxy reference for auto_ptr copying auto_ptr_ref(auto_ptr<_Ty>& _Right) : _Ref(_Right) { // construct from compatible auto_ptr }
auto_ptr<_Ty>& _Ref; // reference to constructor argument };
template<class _Ty> class auto_ptr { // wrap an object pointer to ensure destruction public: typedef _Ty element_type;
explicit auto_ptr(_Ty *_Ptr = 0) _THROW0() : _Myptr(_Ptr) { // construct from object pointer }
auto_ptr(auto_ptr<_Ty>& _Right) _THROW0() : _Myptr(_Right.release()) { // construct by assuming pointer from _Right auto_ptr }
auto_ptr(auto_ptr_ref<_Ty> _Right) _THROW0() : _Myptr(_Right._Ref.release()) { // construct by assuming pointer from _Right auto_ptr_ref }
template<class _Other> operator auto_ptr<_Other>() _THROW0() { // convert to compatible auto_ptr return (auto_ptr<_Other>(*this)); }
template<class _Other> operator auto_ptr_ref<_Other>() _THROW0() { // convert to compatible auto_ptr_ref return (auto_ptr_ref<_Other>(*this)); }
template<class _Other> auto_ptr<_Ty>& operator=(auto_ptr<_Other>& _Right) _THROW0() { // assign compatible _Right (assume pointer) reset(_Right.release()); return (*this); }
template<class _Other> auto_ptr(auto_ptr<_Other>& _Right) _THROW0() : _Myptr(_Right.release()) { // construct by assuming pointer from _Right }
auto_ptr<_Ty>& operator=(auto_ptr<_Ty>& _Right) _THROW0() { // assign compatible _Right (assume pointer) reset(_Right.release()); return (*this); }
auto_ptr<_Ty>& operator=(auto_ptr_ref<_Ty>& _Right) throw () { // assign compatible _Right._Ref (assume pointer) reset(_Right._Ref.release()); return (*this); }
~auto_ptr() { // destroy the object delete _Myptr; }
_Ty& operator*() const _THROW0() { // return designated value return (*get()); }
_Ty *operator->() const _THROW0() { // return pointer to class object return (get()); }
_Ty *get() const _THROW0() { // return wrapped pointer return (_Myptr); }
_Ty *release() _THROW0() { // return wrapped pointer and give up ownership _Ty *_Tmp = _Myptr; _Myptr = 0; return (_Tmp); }
void reset(_Ty* _Ptr = 0) { // destroy designated object and store new pointer if (_Ptr != _Myptr) delete _Myptr; _Myptr = _Ptr; }
private: _Ty *_Myptr; // the wrapped object pointer }; _STD_END #pragma warning(pop) #pragma pack(pop)
#endif /* _MEMORY_ */
/* * Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. */
/* * This file is derived from software bearing the following * restrictions: * * Copyright (c) 1994 * Hewlett-Packard Company * * Permission to use, copy, modify, distribute and sell this * software and its documentation for any purpose is hereby * granted without fee, provided that the above copyright notice * appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation. * Hewlett-Packard Company makes no representations about the * suitability of this software for any purpose. It is provided * "as is" without express or implied warranty. V3.10:0009 */
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