[eigen] VS2008 triangularView compiler error

["SHIROKOBROD Oleg" <Oleg.Shirokobrod@xxxxxxxxxx>]

Hello,

 

I’ve just updated Eigen development branch. I use MSVS 2008 for compiling this code:

 

// HelperTest.cpp

#include <Eigen\Core>

#include <Eigen\QR>

 

int main(int argc, char* argv[])

{

    typedef Eigen::Matrix<double, Eigen::Dynamic, Eigen::Dynamic> Matrix;

   

    int numberOfObservations = 100;

    int numberOfParameters = 10;

    Matrix J =Matrix::Random(numberOfObservations, numberOfParameters);

 

    Eigen::ColPivHouseholderQR<Matrix> colPivHouseholderQR;

    colPivHouseholderQR.compute(J);

 

    Matrix R = Matrix::Zero(numberOfParameters, numberOfParameters);

    R.triangularView<Eigen::Upper>() =

        colPivHouseholderQR.matrixQR().

        topLeftCorner(numberOfParameters, numberOfParameters).

        triangularView<Eigen::Upper>();                                        // Line 20

}

 

With recent version of Eigen the Compiler issues an error message

 

Compiling...

HelperTest.cpp

eigen\eigen\src\core\triangularmatrix.h(549) : error C2248: 'Eigen::TriangularView<_MatrixType,_Mode>::DenseMatrixType' : cannot access protected typedef declared in class 'Eigen::TriangularView<_MatrixType,_Mode>'

        with

        [

            _MatrixType=Eigen::Block<EIGEN::MATRIX,-1,-1,false>,

            _Mode=2

        ]

        eigen\eigen\src\core\triangularmatrix.h(160) : see declaration of 'Eigen::TriangularView<_MatrixType,_Mode>::DenseMatrixType'

        with

        [

            _MatrixType=Eigen::Block<EIGEN::MATRIX,-1,-1,false>,

            _Mode=2

        ]

        helpertest.cpp(20) : see reference to function template instantiation 

'Eigen::TriangularView<_MatrixType,_Mode> &Eigen::TriangularView<_MatrixType,_Mode>::operator =<EIGEN::TRIANGULARVIEW>(const Eigen::TriangularBase<EIGEN::TRIANGULARVIEW> &)' being compiled

        with

        [

            _MatrixType=Eigen::Matrix,

            _Mode=2,

            Derived=Eigen::Block<EIGEN::MATRIX,-1,-1,false>

        ]

 

 

What’s wrong with this code?

 

Thanks,

 

Oleg Shirokobrod

 

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