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TSV.cpp

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#include <math.h>
#include "TSV.h"
#include "Debug.h"


int CompareTSVElement(const void* elem1, const void* elem2) 
{
        double& e1 = *(double*)elem1;
        double& e2 = *(double*)elem2;

        ASSERT(e1 >= 0 && e2 >= 0);

        if (e1 < e2)
                return 1;
        else if (e1 > e2)
                return -1;
        else
                return 0;
}

double TSV::Norm2() const
{
        const double* pData = GetData();
        double d = 0.0;

        for(int i = 0; i < GetSize(); i++)
                d += pData[i] * pData[i];

        return sqrt(d);
}

TSV TSV::operator-(const TSV& rhs) const
{
        bool bRhsIsBigger = rhs.GetSize() > GetSize();
        int i, nMinSize, nMaxSize;

        if (bRhsIsBigger) {
                nMinSize = GetSize();
                nMaxSize = rhs.GetSize();
        }
        else {
                nMinSize = rhs.GetSize();
                nMaxSize = GetSize();
        }

        TSV r(nMaxSize);

        for(i = 0; i < nMinSize; i++)
                r[i] = operator[](i) - rhs[i];

        if (bRhsIsBigger)
                for(; i < nMaxSize; i++)
                        r[i] = -rhs[i];
        else
                for(; i < nMaxSize; i++)
                        r[i] = operator[](i);

/*      int size = GetSize();
        TSV r(size);

        ASSERT(size == rhs.GetSize());

        for(int i = 0; i < size; i++)
                r[i] = operator[](i) - rhs[i];*/

        return r;
}

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