OdMemory.h

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// Copyright (C) 2002-2017, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Teigha(R) software pursuant to a license 
//   agreement with Open Design Alliance.
//   Teigha(R) Copyright (C) 2002-2017 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
 
 
 
 
#ifndef _OD_MEMORY_H_
#define _OD_MEMORY_H_
 
#define STL_USING_MEMORY
#include "OdaSTL.h"
 
#include "OdPlatform.h"
#include "OdAlloc.h"
 
// TEMPLATE CLASS allocator
// Some compilers don't have support for construct & destroy functions.
 
#ifndef OD_STD_ALLOCATOR
 
template<class T>
class OdAllocator : public std::allocator<T>
{
public:
  typedef typename std::allocator<T>::size_type       size_type;
  typedef typename std::allocator<T>::difference_type difference_type;
  typedef typename std::allocator<T>::pointer         pointer;
  typedef typename std::allocator<T>::const_pointer   const_pointer;
  typedef typename std::allocator<T>::reference       reference;
  typedef typename std::allocator<T>::const_reference const_reference;
  typedef typename std::allocator<T>::value_type      value_type;
 
private:
  inline void constructn(size_type N, pointer ptr, const T& _V = T())
  {
    while(N--) construct(ptr + N, _V);
  }
  inline void destroyn(size_type N, pointer ptr)
  {
    while(N--) destroy(ptr + N);
  }
public:
  pointer allocate(size_type N, const void * = 0)
  {
    pointer res = NULL;
    if (N)
    {
      res = (pointer)::odrxAlloc(N * sizeof(T));
      constructn(N, res);
    }
    return res;
  }
  
 
  pointer allocate(size_type N, const_pointer = 0)
  {
    pointer res = NULL;
    if (N)
    {
      res = (pointer)::odrxAlloc(N * sizeof(T));
      constructn(N, res);
    }
    return res;
  }
 
#ifdef _MSC_VER
 
#if _MSC_VER > 1600
#ifndef _FARQ /* specify standard memory model */
 #define _FARQ
 #define _PDFT ptrdiff_t
 #define _SIZT size_t
#endif
#endif 
 
  char _FARQ *_Charalloc(size_type N)
  {
    return (char _FARQ*)::odrxAlloc(N);
  }
#endif
 
  void deallocate(void* P, size_type = 0 ) { ::odrxFree(P); }
};
 
#else
 
template<class T>
class OdAllocator : public std::allocator<T>
{};
 
 
#endif
 
 
#endif //_OD_MEMORY_H_