110 lines
3.1 KiB
Plaintext
110 lines
3.1 KiB
Plaintext
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// xmemory internal header (from <memory>)
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#ifndef _XMEMORY_
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#define _XMEMORY_
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#include <cstdlib>
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#include <new>
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#ifdef _MSC_VER
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#pragma pack(push,8)
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#endif /* _MSC_VER */
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#include <utility>
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#ifndef _FARQ /* specify standard memory model */
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#define _FARQ
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#define _PDFT ptrdiff_t
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#define _SIZT size_t
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#endif
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#define _POINTER_X(T, A) T _FARQ *
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#define _REFERENCE_X(T, A) T _FARQ &
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_STD_BEGIN
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// TEMPLATE FUNCTION _Allocate
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template<class _Ty> inline
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_Ty _FARQ *_Allocate(_PDFT _N, _Ty _FARQ *)
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{if (_N < 0)
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_N = 0;
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return ((_Ty _FARQ *)operator new(
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(_SIZT)_N * sizeof (_Ty))); }
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// TEMPLATE FUNCTION _Construct
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template<class _T1, class _T2> inline
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void _Construct(_T1 _FARQ *_P, const _T2& _V)
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{new ((void _FARQ *)_P) _T1(_V); }
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// TEMPLATE FUNCTION _Destroy
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template<class _Ty> inline
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void _Destroy(_Ty _FARQ *_P)
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{_DESTRUCTOR(_Ty, _P); }
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inline void _Destroy(char _FARQ *_P)
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{}
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inline void _Destroy(wchar_t _FARQ *_P)
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{}
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// TEMPLATE CLASS allocator
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template<class _Ty>
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class allocator {
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public:
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typedef _SIZT size_type;
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typedef _PDFT difference_type;
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typedef _Ty _FARQ *pointer;
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typedef const _Ty _FARQ *const_pointer;
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typedef _Ty _FARQ& reference;
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typedef const _Ty _FARQ& const_reference;
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typedef _Ty value_type;
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pointer address(reference _X) const
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{return (&_X); }
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const_pointer address(const_reference _X) const
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{return (&_X); }
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pointer allocate(size_type _N, const void *)
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{return (_Allocate((difference_type)_N, (pointer)0)); }
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char _FARQ *_Charalloc(size_type _N)
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{return (_Allocate((difference_type)_N,
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(char _FARQ *)0)); }
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void deallocate(void _FARQ *_P, size_type)
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{operator delete(_P); }
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void construct(pointer _P, const _Ty& _V)
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{_Construct(_P, _V); }
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void destroy(pointer _P)
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{_Destroy(_P); }
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_SIZT max_size() const
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{_SIZT _N = (_SIZT)(-1) / sizeof (_Ty);
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return (0 < _N ? _N : 1); }
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};
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template<class _Ty, class _U> inline
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bool operator==(const allocator<_Ty>&, const allocator<_U>&)
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{return (true); }
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template<class _Ty, class _U> inline
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bool operator!=(const allocator<_Ty>&, const allocator<_U>&)
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{return (false); }
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// CLASS allocator<void>
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template<> class _CRTIMP2 allocator<void> {
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public:
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typedef void _Ty;
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typedef _Ty _FARQ *pointer;
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typedef const _Ty _FARQ *const_pointer;
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typedef _Ty value_type;
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};
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_STD_END
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif /* _MSC_VER */
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#endif /* _XMEMORY_ */
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/*
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* Copyright (c) 1995 by P.J. Plauger. ALL RIGHTS RESERVED.
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* Consult your license regarding permissions and restrictions.
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*/
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/*
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* This file is derived from software bearing the following
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* restrictions:
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this
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* software and its documentation for any purpose is hereby
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* granted without fee, provided that the above copyright notice
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* appear in all copies and that both that copyright notice and
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* this permission notice appear in supporting documentation.
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* Hewlett-Packard Company makes no representations about the
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* suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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*/
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