arraytempl.h

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#ifndef __ARRAYTEMPL_H__
#define __ARRAYTEMPL_H__
#include <afxtempl.h>

template < class TYPE, class ARG_TYPE >
class CMyArray : public CArray< TYPE, ARG_TYPE >
{
public:

	//find element == "toFind" and return the index
	//return -1 if not found
	int  Find( ARG_TYPE toFind, int nStart = 0 ) const;

	//add the "toAdd" in order
	//return the index to element just added
	int  AddInOrder( ARG_TYPE toAdd );

	//delete all items what is in "toCmp"
	//for example:
	//this array has value: 1, 2, 7, 8, 4, 4
	//to toCmp has value: 2, 4, 8
	//after this operation, values in this array may be: 1, 7 ( 2, 8, 4 ) is deleted
	//return number of items deleted
	int  RemoveDupItem( const CMyArray<TYPE,ARG_TYPE> &toCmp ); 

	//delete all items with value same to (toDel)
	//return the number of items deleted
	int  RemoveItem( ARG_TYPE toDel ); 

	const CMyArray<TYPE, ARG_TYPE> &operator = ( const CMyArray<TYPE, ARG_TYPE>& toCopy );

protected:

	//compare the ele1 and ele2 
	inline int Compare( ARG_TYPE ele1, ARG_TYPE ele2 ) const; 
};

//NOTE:
template < class TYPE, class ARG_TYPE >
int  CMyArray< TYPE, ARG_TYPE > ::
Find(  ARG_TYPE toFind, int nStart ) const
{
	int nNumber = GetSize();
	for( int i = nStart; i < nNumber; i ++ )
		if( 0 == Compare(GetAt(i), toFind) ) return i;

	return -1;
}


template < class TYPE, class ARG_TYPE >
int  CMyArray< TYPE, ARG_TYPE > ::
AddInOrder( ARG_TYPE toAdd  )
{
	//find position to insert
	int nSize = GetSize();
	int i = 0;

	while( i < nSize )
		if( Compare( GetAt( i++ ), toAdd ) >= 0 ) break;	//the first element >= toAdd

	//insert
	InsertAt( i, toAdd );

	return i;
}


template < class TYPE, class ARG_TYPE >
const CMyArray<TYPE, ARG_TYPE>& CMyArray<TYPE, ARG_TYPE>::
operator = ( const CMyArray<TYPE, ARG_TYPE>& toCopy )
{
	RemoveAll();
	Copy( toCopy );
	return *this;
}

template < class TYPE, class ARG_TYPE >
int  CMyArray<TYPE, ARG_TYPE>::
RemoveDupItem( const CMyArray<TYPE,ARG_TYPE> &toCmp  )
{
	int nSize = GetSize();
	int nDeleted = 0;
	
	int i  = 0;
	while( i < nSize )
	{
		if( toCmp.Find( GetAt(i) ) >= 0 ) 
		{
			RemoveAt(i);
			nSize--;		//i not changed
			nDeleted++;
		}
		else
			i++;
	}
	
	return nDeleted;
}

template < class TYPE, class ARG_TYPE >
int  CMyArray<TYPE, ARG_TYPE>::
RemoveItem( ARG_TYPE toDel  )
{
	int nSize = GetSize();
	int nDeleted = 0;

	int i = 0;
	while( i < nSize )
	{
		if( Compare( GetAt(i), toDel ) == 0  )
		{
			RemoveAt(i);
			nDeleted++;
			nSize--;
		}
		else
			i ++;		
	}
	
	return nDeleted;
}

template < class TYPE, class ARG_TYPE >
int CMyArray<TYPE, ARG_TYPE>::
Compare( ARG_TYPE ele1, ARG_TYPE ele2 ) const
{
	return ele1 - ele2;		//default
}


#endif //__ARRAYTEMPL_H__