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| author | Stanislaw Halik <sthalik@misaki.pl> | 2019-03-03 21:09:10 +0100 |
|---|---|---|
| committer | Stanislaw Halik <sthalik@misaki.pl> | 2019-03-03 21:10:13 +0100 |
| commit | f0238cfb6997c4acfc2bd200de7295f3fa36968f (patch) | |
| tree | b215183760e4f615b9c1dabc1f116383b72a1b55 /eigen/blas/PackedTriangularSolverVector.h | |
| parent | 543edd372a5193d04b3de9f23c176ab439e51b31 (diff) | |
don't index Eigen
Diffstat (limited to 'eigen/blas/PackedTriangularSolverVector.h')
| -rw-r--r-- | eigen/blas/PackedTriangularSolverVector.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/eigen/blas/PackedTriangularSolverVector.h b/eigen/blas/PackedTriangularSolverVector.h deleted file mode 100644 index 5c0bb4b..0000000 --- a/eigen/blas/PackedTriangularSolverVector.h +++ /dev/null @@ -1,88 +0,0 @@ -// This file is part of Eigen, a lightweight C++ template library -// for linear algebra. -// -// Copyright (C) 2012 Chen-Pang He <jdh8@ms63.hinet.net> -// -// This Source Code Form is subject to the terms of the Mozilla -// Public License v. 2.0. If a copy of the MPL was not distributed -// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. - -#ifndef EIGEN_PACKED_TRIANGULAR_SOLVER_VECTOR_H -#define EIGEN_PACKED_TRIANGULAR_SOLVER_VECTOR_H - -namespace internal { - -template<typename LhsScalar, typename RhsScalar, typename Index, int Side, int Mode, bool Conjugate, int StorageOrder> -struct packed_triangular_solve_vector; - -// forward and backward substitution, row-major, rhs is a vector -template<typename LhsScalar, typename RhsScalar, typename Index, int Mode, bool Conjugate> -struct packed_triangular_solve_vector<LhsScalar, RhsScalar, Index, OnTheLeft, Mode, Conjugate, RowMajor> -{ - enum { - IsLower = (Mode&Lower)==Lower - }; - static void run(Index size, const LhsScalar* lhs, RhsScalar* rhs) - { - internal::conj_if<Conjugate> cj; - typedef Map<const Matrix<LhsScalar,Dynamic,1> > LhsMap; - typedef typename conj_expr_if<Conjugate,LhsMap>::type ConjLhsType; - - lhs += IsLower ? 0 : (size*(size+1)>>1)-1; - for(Index pi=0; pi<size; ++pi) - { - Index i = IsLower ? pi : size-pi-1; - Index s = IsLower ? 0 : 1; - if (pi>0) - rhs[i] -= (ConjLhsType(LhsMap(lhs+s,pi)) - .cwiseProduct(Map<const Matrix<RhsScalar,Dynamic,1> >(rhs+(IsLower ? 0 : i+1),pi))).sum(); - if (!(Mode & UnitDiag)) - rhs[i] /= cj(lhs[IsLower ? i : 0]); - IsLower ? lhs += pi+1 : lhs -= pi+2; - } - } -}; - -// forward and backward substitution, column-major, rhs is a vector -template<typename LhsScalar, typename RhsScalar, typename Index, int Mode, bool Conjugate> -struct packed_triangular_solve_vector<LhsScalar, RhsScalar, Index, OnTheLeft, Mode, Conjugate, ColMajor> -{ - enum { - IsLower = (Mode&Lower)==Lower - }; - static void run(Index size, const LhsScalar* lhs, RhsScalar* rhs) - { - internal::conj_if<Conjugate> cj; - typedef Map<const Matrix<LhsScalar,Dynamic,1> > LhsMap; - typedef typename conj_expr_if<Conjugate,LhsMap>::type ConjLhsType; - - lhs += IsLower ? 0 : size*(size-1)>>1; - for(Index pi=0; pi<size; ++pi) - { - Index i = IsLower ? pi : size-pi-1; - Index r = size - pi - 1; - if (!(Mode & UnitDiag)) - rhs[i] /= cj(lhs[IsLower ? 0 : i]); - if (r>0) - Map<Matrix<RhsScalar,Dynamic,1> >(rhs+(IsLower? i+1 : 0),r) -= - rhs[i] * ConjLhsType(LhsMap(lhs+(IsLower? 1 : 0),r)); - IsLower ? lhs += size-pi : lhs -= r; - } - } -}; - -template<typename LhsScalar, typename RhsScalar, typename Index, int Mode, bool Conjugate, int StorageOrder> -struct packed_triangular_solve_vector<LhsScalar, RhsScalar, Index, OnTheRight, Mode, Conjugate, StorageOrder> -{ - static void run(Index size, const LhsScalar* lhs, RhsScalar* rhs) - { - packed_triangular_solve_vector<LhsScalar,RhsScalar,Index,OnTheLeft, - ((Mode&Upper)==Upper ? Lower : Upper) | (Mode&UnitDiag), - Conjugate,StorageOrder==RowMajor?ColMajor:RowMajor - >::run(size, lhs, rhs); - } -}; - -} // end namespace internal - -#endif // EIGEN_PACKED_TRIANGULAR_SOLVER_VECTOR_H |
