|| || || || || || || ||

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UpoLut.h

Go to the documentation of this file.

#ifndef Impala_Core_Array_Trait_UpoLut_h
#define Impala_Core_Array_Trait_UpoLut_h

#include "Core/Array/Pattern/Categories.h"
#include <vector>

namespace Impala
{
namespace Core
{
namespace Array
{
namespace Trait
{


template<class DstArrayT, class SrcArrayT>
class UpoLut
{
public:

    typedef Pattern::TagTransInVar TransVarianceCategory;

    typedef Pattern::TagCallValue CallCategory;

    typedef typename DstArrayT::ArithType DstArithT;
    typedef typename SrcArrayT::ArithType SrcArithT;

    UpoLut(std::vector<int>* lut, int notInLutVal)
    {
        mLut = lut;
        mNotInLutVal = notInLutVal;
    }

    DstArithT
    DoIt(const SrcArithT& x)
    {
        if ((x < 0) || (x >= mLut->size()))
            return mNotInLutVal;
        return (*mLut)[x];
    }

private:

    std::vector<int>* mLut;
    int mNotInLutVal;
};

} // namespace Trait
} // namespace Array
} // namespace Core
} // namespace Impala

#endif

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