Files
OCCT/src/NCollection/NCollection_LocalArray.hxx
abv ddf2fe8eeb 0024911: Avoid using virtual functions in NCollection classes
NCollection_BaseCollection class, relevant header files, and macro DEFINE_BASECOLLECTION removed.
Hence methods Assign() from other compatible (via inheritance of BaseCollection) collections are not available any more, as well as base Iterator class.

All methods of Iterator classes are made non-virtual, allowing their inline expansion for better performance.

OCCT-specific operators new and delete added to collection classes and removed from iterator classes.
2014-06-05 14:12:18 +04:00

79 lines
1.8 KiB
C++

// Created on: 2009-09-23
// Copyright (c) 2009-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _NCollection_LocalArray_HeaderFile
#define _NCollection_LocalArray_HeaderFile
#include <Standard.hxx>
#include <Standard_TypeDef.hxx>
//! Auxiliary class optimizing creation of array buffer
//! (using stack allocation for small arrays).
template<class theItem> class NCollection_LocalArray
{
public:
// 1K * sizeof (theItem)
static const size_t MAX_ARRAY_SIZE = 1024;
NCollection_LocalArray (const size_t theSize)
: myPtr (myBuffer)
{
Allocate(theSize);
}
NCollection_LocalArray ()
: myPtr (myBuffer) {}
~NCollection_LocalArray()
{
Deallocate();
}
void Allocate (const size_t theSize)
{
Deallocate();
if (theSize > MAX_ARRAY_SIZE)
myPtr = (theItem*)Standard::Allocate (theSize * sizeof(theItem));
else
myPtr = myBuffer;
}
operator theItem*() const
{
return myPtr;
}
private:
NCollection_LocalArray (const NCollection_LocalArray& );
NCollection_LocalArray& operator= (const NCollection_LocalArray& );
protected:
void Deallocate()
{
if (myPtr != myBuffer)
Standard::Free (myPtr);
}
protected:
theItem myBuffer[MAX_ARRAY_SIZE];
theItem* myPtr;
};
#endif // _NCollection_LocalArray_HeaderFile