examples/Base/ArraysAndLists/linkedlist/sgllist/src/adder.cpp

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/*
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Description: Contains definition of functions defined in the CAdder class.  
*/



#include "adder.h"

CAdder* CAdder::NewL(CLongNumber* aLongNumber)
        {
        CAdder* self = new (ELeave) CAdder(aLongNumber);
        return self;
        }

CAdder::CAdder(CLongNumber* aLongNumber):iLongNumber(aLongNumber)
        {
        }

TInt CAdder::Add()
        {
        // Set the iterator to the start of the list.
        iLongNumber->InitializeIter();

        // Initialize sum to 0.
        TInt num;
        TInt sum = 0;

        // Iterate the list.
        // The iterator is pointing to a valid node.
        // Get the digit represented by this node.
        while(iLongNumber->GetNumber(num))
                {
                // Update the sum.
                sum += num;
                // Go to the next digit.
                iLongNumber->Slide();
                }

        return sum;
        }

CAdder::~CAdder()
        {
        }

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