bintools/rcomp/src/ARRAY.CPP
author Alex Gilkes <alex.gilkes@nokia.com>
Tue, 27 Oct 2009 16:36:35 +0000
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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include <stdio.h>
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#include <assert.h>
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#include "ARRAY.H"
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Array::Array():
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	iData(NULL),
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	iItemCount(0),
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	iItemAllocCount(0)
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	{}
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Array::~Array()
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	{
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	delete [] iData;
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	}
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Array::Array(const Array& aSource)
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	{
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	iItemCount=aSource.iItemCount;
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	iItemAllocCount=aSource.iItemAllocCount;
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	assert(iItemAllocCount>=iItemCount);
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	if (iItemAllocCount>0)
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		{
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		iData=new ArrayItem* [iItemAllocCount];
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		assert(iData!=0);
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		for(int i=0;i<iItemCount;i++)
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			{
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			iData[i]=aSource.iData[i];
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			}
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		}
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	}
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void Array::Empty()
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	{
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	delete [] iData;
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	iData = NULL;
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	iItemCount = 0;
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	iItemAllocCount = 0;
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	}
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Array& Array::operator= (const Array& aSource)
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	{
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	if(&aSource==this)
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		return *this;
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	DeleteAll();
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	iItemCount=aSource.iItemCount;
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	iItemAllocCount=aSource.iItemAllocCount;
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	assert(iItemAllocCount>=iItemCount);
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	if (iItemAllocCount>0)
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		{
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		iData=new ArrayItem* [iItemAllocCount];
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		assert(iData!=0);
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		for(int i=0;i<iItemCount;i++)
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			{
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			iData[i]=aSource.iData[i];
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			}
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		}
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	return *this;
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	}
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ArrayItem*& Array::operator[](int aIndex) const
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	{
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	assert(aIndex>=0);
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	assert(aIndex<iItemCount);
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	return iData[aIndex];
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	}
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int Array::Size() const
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	{
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	return iItemCount;
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	}
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void Array::Add(ArrayItem* aNewItem)
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	{
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	Add(iItemCount, aNewItem);
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	}
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void Array::Add(int aIndex, ArrayItem* aNewItem)
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	{
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	assert(aIndex>=0);
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	assert(aIndex<=iItemCount);
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	assert(iItemCount<=iItemAllocCount);
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	if (iItemCount<iItemAllocCount)
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		{
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		++iItemCount;
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		for (int i=iItemCount-1;i>aIndex;--i)
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			{
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			iData[i]=iData[i-1];
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			}
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		iData[aIndex]=aNewItem;
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		}
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	else
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		{
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		iItemAllocCount+=4;
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		ArrayItem** const data=new ArrayItem* [iItemAllocCount];
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		assert(data!=0);
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		++iItemCount;
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		int i;
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		for (i=iItemCount-1;i>aIndex;--i)
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			{
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			data[i]=iData[i-1];
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			}
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		data[aIndex]=aNewItem;
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		for (i=0;i<aIndex;++i)
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			{
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			data[i]=iData[i];
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			}
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		delete [] iData;
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		iData = data;
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		}
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	}
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void Array::Discard(ArrayItem* aItem)
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	{
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	// Find index of item to remove.
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	for(int i=0;i<iItemCount;++i)
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		{
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		if(iData[i]==aItem)
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			{
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			Discard(i);
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			break;
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			}
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		}
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	}
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void Array::Discard(int aIndex)
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	{
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	assert(aIndex>=0);
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	assert(aIndex<iItemCount);
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	delete iData[aIndex];
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	--iItemCount;
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	for (int i=aIndex;i<iItemCount;++i)
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		{
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		iData[i]=iData[i+1];
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		}
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	}
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void Array::DeleteAll()
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	{
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	for(int i=0;i<iItemCount;i++)
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		delete iData[i];
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	delete [] iData;
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	iData=NULL;
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	iItemCount = 0;
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	iItemAllocCount = 0;
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	}	
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ArrayIterator::ArrayIterator(const Array& aArray)
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	{
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	iArray=&aArray;
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	iCurrentIndex=0;
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	}
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ArrayItem * ArrayIterator::operator()()
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	{
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	if(iCurrentIndex>=iArray->Size())
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		return NULL;
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	ArrayItem* p=(*iArray)[iCurrentIndex++];
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	return p;
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	}
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void ArrayIterator::Reset()
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	{
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	iCurrentIndex=0;
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	}
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