///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2002-2016, Open Design Alliance (the "Alliance").
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// All rights reserved.
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//
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// This software and its documentation and related materials are owned by
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// the Alliance. The software may only be incorporated into application
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// programs owned by members of the Alliance, subject to a signed
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// Membership Agreement and Supplemental Software License Agreement with the
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// Alliance. The structure and organization of this software are the valuable
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// trade secrets of the Alliance and its suppliers. The software is also
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// protected by copyright law and international treaty provisions. Application
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// programs incorporating this software must include the following statement
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// with their copyright notices:
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//
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// This application incorporates Teigha(R) software pursuant to a license
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// agreement with Open Design Alliance.
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// Teigha(R) Copyright (C) 2002-2016 by Open Design Alliance.
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// All rights reserved.
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//
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// By use of this software, its documentation or related materials, you
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// acknowledge and accept the above terms.
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _OD_MEMORY_H_
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#define _OD_MEMORY_H_
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#define STL_USING_MEMORY
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#include "OdaSTL.h"
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#include "OdPlatform.h"
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#include "OdAlloc.h"
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// TEMPLATE CLASS allocator
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// Some compilers don't have support for construct & destroy functions.
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#ifndef OD_STD_ALLOCATOR
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/** \details
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This template class extends the functionality of the standard STL class std::allocator
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for those compilers that not support for construct and destroy.
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\note
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If construct and destroy are supported, as indicated by #define OD_STD_ALLOCATOR,
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this class is does nothing to std::allocator.
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<group Other_Classes>
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*/
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template<class T>
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class OdAllocator : public std::allocator<T>
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{
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public:
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typedef typename std::allocator<T>::size_type size_type;
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typedef typename std::allocator<T>::difference_type difference_type;
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typedef typename std::allocator<T>::pointer pointer;
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typedef typename std::allocator<T>::const_pointer const_pointer;
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typedef typename std::allocator<T>::reference reference;
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typedef typename std::allocator<T>::const_reference const_reference;
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typedef typename std::allocator<T>::value_type value_type;
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private:
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inline void constructn(size_type N, pointer ptr, const T& _V = T())
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{
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while(N--) construct(ptr + N, _V);
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}
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inline void destroyn(size_type N, pointer ptr)
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{
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while(N--) destroy(ptr + N);
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}
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public:
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/** \details
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Allocates a block of memory sufficient to store the specified number of elements.
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\param N [in] Number of elements.
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\remarks
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Returns a pointer to the allocated memory.
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*/
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pointer allocate(size_type N, const void * = 0)
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{
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pointer res = NULL;
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if (N)
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{
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res = (pointer)::odrxAlloc(N * sizeof(T));
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constructn(N, res);
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}
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return res;
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}
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//!DOM For CodeWarrior
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pointer allocate(size_type N, const_pointer = 0)
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{
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pointer res = NULL;
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if (N)
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{
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res = (pointer)::odrxAlloc(N * sizeof(T));
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constructn(N, res);
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}
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return res;
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}
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#ifdef _MSC_VER
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#if _MSC_VER > 1600
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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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#endif //!DOM _MSC_VER > 1600
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/** \details
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Allocates a block of memory sufficient to store the specified number of characters.
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\param N [in] Number of characters.
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\remarks
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Returns a pointer to the allocated memory.
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\note
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Prevents "Freeing Mismatched Memory" errors in Purify.
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*/
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char _FARQ *_Charalloc(size_type N)
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{
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return (char _FARQ*)::odrxAlloc(N);
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}
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#endif
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/** \details
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Frees a block of memory allocated with allocate.
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\param P [in] Pointer to the memory.
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*/
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void deallocate(void* P, size_type = 0 ) { ::odrxFree(P); }
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};
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#else
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/** \details
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<group Other_Classes>
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*/
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template<class T>
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class OdAllocator : public std::allocator<T>
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{};
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#endif
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#endif //_OD_MEMORY_H_
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