RealSchur_LAPACKE.h
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27  ********************************************************************************
28  * Content : Eigen bindings to LAPACKe
29  * Real Schur needed to real unsymmetrical eigenvalues/eigenvectors.
30  ********************************************************************************
31 */
32 
33 #ifndef EIGEN_REAL_SCHUR_LAPACKE_H
34 #define EIGEN_REAL_SCHUR_LAPACKE_H
35 
36 namespace Eigen {
37 
40 #define EIGEN_LAPACKE_SCHUR_REAL(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX, LAPACKE_PREFIX_U, EIGCOLROW, LAPACKE_COLROW) \
41 template<> template<typename InputType> inline \
42 RealSchur<Matrix<EIGTYPE, Dynamic, Dynamic, EIGCOLROW> >& \
43 RealSchur<Matrix<EIGTYPE, Dynamic, Dynamic, EIGCOLROW> >::compute(const EigenBase<InputType>& matrix, bool computeU) \
44 { \
45  eigen_assert(matrix.cols() == matrix.rows()); \
46 \
47  lapack_int n = internal::convert_index<lapack_int>(matrix.cols()), sdim, info; \
48  lapack_int matrix_order = LAPACKE_COLROW; \
49  char jobvs, sort='N'; \
50  LAPACK_##LAPACKE_PREFIX_U##_SELECT2 select = 0; \
51  jobvs = (computeU) ? 'V' : 'N'; \
52  m_matU.resize(n, n); \
53  lapack_int ldvs = internal::convert_index<lapack_int>(m_matU.outerStride()); \
54  m_matT = matrix; \
55  lapack_int lda = internal::convert_index<lapack_int>(m_matT.outerStride()); \
56  Matrix<EIGTYPE, Dynamic, Dynamic> wr, wi; \
57  wr.resize(n, 1); wi.resize(n, 1); \
58  info = LAPACKE_##LAPACKE_PREFIX##gees( matrix_order, jobvs, sort, select, n, (LAPACKE_TYPE*)m_matT.data(), lda, &sdim, (LAPACKE_TYPE*)wr.data(), (LAPACKE_TYPE*)wi.data(), (LAPACKE_TYPE*)m_matU.data(), ldvs ); \
59  if(info == 0) \
60  m_info = Success; \
61  else \
62  m_info = NoConvergence; \
63 \
64  m_isInitialized = true; \
65  m_matUisUptodate = computeU; \
66  return *this; \
67 \
68 }
69 
74 
75 } // end namespace Eigen
76 
77 #endif // EIGEN_REAL_SCHUR_LAPACKE_H
#define LAPACK_COL_MAJOR
Definition: lapacke.h:123
Namespace containing all symbols from the Eigen library.
Definition: jet.h:637
DiscreteKey S(1, 2)
#define EIGEN_LAPACKE_SCHUR_REAL(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX, LAPACKE_PREFIX_U, EIGCOLROW, LAPACKE_COLROW)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:122
RealScalar s


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autogenerated on Tue Jul 4 2023 02:35:30