xmemory

pwlib源码库

// xmemory internal header (from <memory>)

#if     _MSC_VER > 1000
#pragma once
#endif

/* This file is for use only in conjunction with a valid license for
Microsoft Visual C++ V5.0. Microsoft Corporation is in no way involved
with the production or release of this file. The file is offered on an
``as is'' basis.

DINKUMWARE, LTD. AND P.J. PLAUGER MAKE NO REPRESENTATIONS OR WARRANTIES
ABOUT THE SUITABILITY OF THIS FILE, EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. DINKUMWARE, LTD.
AND P.J. PLAUGER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
LICENSEE AS A RESULT OF USING THIS FILE.

For additional information, contact Dinkumware, Ltd. (+1-888-4DINKUM or
[e-mail]).
 */

#ifndef _XMEMORY_
#define _XMEMORY_
#include <cstdlib>
#include <new>

#ifdef  _MSC_VER
#pragma pack(push,8)
#endif  /* _MSC_VER */
 #include <utility>
#ifndef _FARQ	/* specify standard memory model */
 #define _FARQ
 #define _PDFT	ptrdiff_t
 #define _SIZT	size_t
#endif
 #define _POINTER_X(T, A)	T _FARQ *
 #define _REFERENCE_X(T, A)	T _FARQ &
_STD_BEGIN
		// TEMPLATE FUNCTION _Allocate
template<class _Ty> inline
	_Ty _FARQ *_Allocate(_PDFT _N, _Ty _FARQ *)
	{if (_N < 0)
		_N = 0;
	return ((_Ty _FARQ *)operator new(
		(_SIZT)_N * sizeof (_Ty))); }
		// TEMPLATE FUNCTION _Construct
template<class _T1, class _T2> inline
	void _Construct(_T1 _FARQ *_P, const _T2& _V)
	{new ((void _FARQ *)_P) _T1(_V); }
		// TEMPLATE FUNCTION _Destroy
template<class _Xyzzy> inline
	void _Destroy(_Xyzzy _FARQ *_P)
	{_DESTRUCTOR(_Xyzzy, _P); }
inline void _Destroy(char _FARQ *_P)
	{}
inline void _Destroy(wchar_t _FARQ *_P)
	{}
		// TEMPLATE CLASS allocator
template<class _Ty>
	class allocator {
public:
	typedef _SIZT size_type;
	typedef _PDFT difference_type;
	typedef _Ty _FARQ *pointer;
	typedef const _Ty _FARQ *const_pointer;
	typedef _Ty _FARQ& reference;
	typedef const _Ty _FARQ& const_reference;
	typedef _Ty value_type;
	pointer address(reference _X) const
		{return (&_X); }
	const_pointer address(const_reference _X) const
		{return (&_X); }
	pointer allocate(size_type _N, const void *)
		{return (_Allocate((difference_type)_N, (pointer)0)); }
	char _FARQ *_Charalloc(size_type _N)
		{return (_Allocate((difference_type)_N,
			(char _FARQ *)0)); }
	void deallocate(void _FARQ *_P, size_type)
		{operator delete(_P); }
	void construct(pointer _P, const _Ty& _V)
		{_Construct(_P, _V); }
	void destroy(pointer _P)
		{_Destroy(_P); }
	_SIZT max_size() const
		{_SIZT _N = (_SIZT)(-1) / sizeof (_Ty);
		return (0 < _N ? _N : 1); }
	};
template<class _Ty, class _U> inline
	bool operator==(const allocator<_Ty>&, const allocator<_U>&)
	{return (true); }
template<class _Ty, class _U> inline
	bool operator!=(const allocator<_Ty>&, const allocator<_U>&)
	{return (false); }
		// CLASS allocator<void>
template<> class _CRTIMP allocator<void> {
public:
	typedef void _Ty;
	typedef _Ty _FARQ *pointer;
	typedef const _Ty _FARQ *const_pointer;
	typedef _Ty value_type;
	};
_STD_END
#ifdef  _MSC_VER
#pragma pack(pop)
#endif  /* _MSC_VER */

#endif /* _XMEMORY_ */

/*
 * Copyright (c) 1995 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.
 */