Eigen  3.3.90 (mercurial changeset d63bd3cb7378)
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SolverBase.h
1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2015 Gael Guennebaud <gael.guennebaud@inria.fr>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 
10 #ifndef EIGEN_SOLVERBASE_H
11 #define EIGEN_SOLVERBASE_H
12 
13 namespace Eigen {
14 
15 namespace internal {
16 
17 
18 
19 } // end namespace internal
20 
40 template<typename Derived>
41 class SolverBase : public EigenBase<Derived>
42 {
43  public:
44 
45  typedef EigenBase<Derived> Base;
46  typedef typename internal::traits<Derived>::Scalar Scalar;
47  typedef Scalar CoeffReturnType;
48 
49  enum {
50  RowsAtCompileTime = internal::traits<Derived>::RowsAtCompileTime,
51  ColsAtCompileTime = internal::traits<Derived>::ColsAtCompileTime,
52  SizeAtCompileTime = (internal::size_at_compile_time<internal::traits<Derived>::RowsAtCompileTime,
53  internal::traits<Derived>::ColsAtCompileTime>::ret),
54  MaxRowsAtCompileTime = internal::traits<Derived>::MaxRowsAtCompileTime,
55  MaxColsAtCompileTime = internal::traits<Derived>::MaxColsAtCompileTime,
56  MaxSizeAtCompileTime = (internal::size_at_compile_time<internal::traits<Derived>::MaxRowsAtCompileTime,
57  internal::traits<Derived>::MaxColsAtCompileTime>::ret),
58  IsVectorAtCompileTime = internal::traits<Derived>::MaxRowsAtCompileTime == 1
59  || internal::traits<Derived>::MaxColsAtCompileTime == 1
60  };
61 
64  {}
65 
66  ~SolverBase()
67  {}
68 
69  using Base::derived;
70 
73  template<typename Rhs>
74  inline const Solve<Derived, Rhs>
75  solve(const MatrixBase<Rhs>& b) const
76  {
77  eigen_assert(derived().rows()==b.rows() && "solve(): invalid number of rows of the right hand side matrix b");
78  return Solve<Derived, Rhs>(derived(), b.derived());
79  }
80 
82  typedef typename internal::add_const<Transpose<const Derived> >::type ConstTransposeReturnType;
91  {
93  }
94 
96  typedef typename internal::conditional<NumTraits<Scalar>::IsComplex,
97  CwiseUnaryOp<internal::scalar_conjugate_op<Scalar>, ConstTransposeReturnType>,
98  ConstTransposeReturnType
99  >::type AdjointReturnType;
109  inline AdjointReturnType adjoint() const
110  {
111  return AdjointReturnType(derived().transpose());
112  }
113 
114  protected:
115 };
116 
117 namespace internal {
118 
119 template<typename Derived>
120 struct generic_xpr_base<Derived, MatrixXpr, SolverStorage>
121 {
122  typedef SolverBase<Derived> type;
123 
124 };
125 
126 } // end namespace internal
127 
128 } // end namespace Eigen
129 
130 #endif // EIGEN_SOLVERBASE_H
AdjointReturnType adjoint() const
Definition: SolverBase.h:109
Derived & derived()
Definition: EigenBase.h:45
Index rows() const
Definition: EigenBase.h:59
Definition: EigenBase.h:29
const Solve< Derived, Rhs > solve(const MatrixBase< Rhs > &b) const
Definition: SolverBase.h:75
ConstTransposeReturnType transpose() const
Definition: SolverBase.h:90
SolverBase()
Definition: SolverBase.h:63
Expression of a diagonal/subdiagonal/superdiagonal in a matrix.
Definition: Diagonal.h:63
Pseudo expression representing a solving operation.
Definition: Solve.h:62
Generic expression where a coefficient-wise unary operator is applied to an expression.
Definition: CwiseUnaryOp.h:55
A base class for matrix decomposition and solvers.
Definition: SolverBase.h:41
Base class for all dense matrices, vectors, and expressions.
Definition: MatrixBase.h:48