Eigen::internal::lapacke_helpers::lapacke_llt< Scalar, Mode > Struct Template Reference

#include <LLT_LAPACKE.h>

Public Member Functions
	EIGEN_STATIC_ASSERT (((Mode==Lower)||(Mode==Upper)), MODE_MUST_BE_UPPER_OR_LOWER) template< typename MatrixType > static Index blocked(MatrixType &m)

Static Public Member Functions
template<typename MatrixType , typename VectorType >
static Index	rankUpdate (MatrixType &mat, const VectorType &vec, const typename MatrixType::RealScalar &sigma)

Member Function Documentation

EIGEN_STATIC_ASSERT()

template<typename Scalar , UpLoType Mode>

Eigen::internal::lapacke_helpers::lapacke_llt< Scalar, Mode >::EIGEN_STATIC_ASSERT ( ((Mode==Lower)||(Mode==Upper))  , MODE_MUST_BE_UPPER_OR_LOWER    ) &

inline

                                      {
    eigen_assert(m.rows() == m.cols());
    if (m.rows() == 0) {
      return -1;
    }
    /* Set up parameters for ?potrf */
    lapack_int size = to_lapack(m.rows());
    lapack_int matrix_order = lapack_storage_of(m);
    constexpr char uplo = Mode == Upper ? 'U' : 'L';
    Scalar *a = &(m.coeffRef(0, 0));
    lapack_int lda = to_lapack(m.outerStride());
 
    lapack_int info = potrf(matrix_order, uplo, size, to_lapack(a), lda);
    info = (info == 0) ? -1 : info > 0 ? info - 1 : size;
    return info;
  }

References a, eigen_assert, info, lapack_int, Eigen::internal::lapacke_helpers::lapack_storage_of(), lda, m, size, Eigen::internal::lapacke_helpers::to_lapack(), uplo, and Eigen::Upper.

rankUpdate()

template<typename Scalar , UpLoType Mode>

template<typename MatrixType , typename VectorType >

static Index Eigen::internal::lapacke_helpers::lapacke_llt< Scalar, Mode >::rankUpdate ( MatrixType &  mat, const VectorType &  vec, const typename MatrixType::RealScalar &  sigma  )

inlinestatic

                                                                                                              {
    return rank_update<Mode>::run(mat, vec, sigma);
  }

References run(), and calibrate::sigma.

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The documentation for this struct was generated from the following file:

• LLT_LAPACKE.h