CwiseUnaryOp.h
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1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2008-2010 Gael Guennebaud <gael.guennebaud@inria.fr>
5 // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
6 //
7 // This Source Code Form is subject to the terms of the Mozilla
8 // Public License v. 2.0. If a copy of the MPL was not distributed
9 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
10 
11 #ifndef EIGEN_CWISE_UNARY_OP_H
12 #define EIGEN_CWISE_UNARY_OP_H
13 
14 namespace Eigen {
15 
36 namespace internal {
37 template<typename UnaryOp, typename XprType>
38 struct traits<CwiseUnaryOp<UnaryOp, XprType> >
39  : traits<XprType>
40 {
41  typedef typename result_of<
42  UnaryOp(typename XprType::Scalar)
43  >::type Scalar;
44  typedef typename XprType::Nested XprTypeNested;
46  enum {
47  Flags = _XprTypeNested::Flags & (
50  CoeffReadCost = _XprTypeNested::CoeffReadCost + functor_traits<UnaryOp>::Cost
51  };
52 };
53 }
54 
55 template<typename UnaryOp, typename XprType, typename StorageKind>
57 
58 template<typename UnaryOp, typename XprType>
60  public CwiseUnaryOpImpl<UnaryOp, XprType, typename internal::traits<XprType>::StorageKind>
61 {
62  public:
63 
66 
67  inline CwiseUnaryOp(const XprType& xpr, const UnaryOp& func = UnaryOp())
68  : m_xpr(xpr), m_functor(func) {}
69 
70  EIGEN_STRONG_INLINE Index rows() const { return m_xpr.rows(); }
71  EIGEN_STRONG_INLINE Index cols() const { return m_xpr.cols(); }
72 
74  const UnaryOp& functor() const { return m_functor; }
75 
78  nestedExpression() const { return m_xpr; }
79 
82  nestedExpression() { return m_xpr.const_cast_derived(); }
83 
84  protected:
85  typename XprType::Nested m_xpr;
86  const UnaryOp m_functor;
87 };
88 
89 // This is the generic implementation for dense storage.
90 // It can be used for any expression types implementing the dense concept.
91 template<typename UnaryOp, typename XprType>
92 class CwiseUnaryOpImpl<UnaryOp,XprType,Dense>
93  : public internal::dense_xpr_base<CwiseUnaryOp<UnaryOp, XprType> >::type
94 {
95  public:
96 
100 
101  EIGEN_STRONG_INLINE const Scalar coeff(Index rowId, Index colId) const
102  {
103  return derived().functor()(derived().nestedExpression().coeff(rowId, colId));
104  }
105 
106  template<int LoadMode>
107  EIGEN_STRONG_INLINE PacketScalar packet(Index rowId, Index colId) const
108  {
109  return derived().functor().packetOp(derived().nestedExpression().template packet<LoadMode>(rowId, colId));
110  }
111 
112  EIGEN_STRONG_INLINE const Scalar coeff(Index index) const
113  {
114  return derived().functor()(derived().nestedExpression().coeff(index));
115  }
116 
117  template<int LoadMode>
118  EIGEN_STRONG_INLINE PacketScalar packet(Index index) const
119  {
120  return derived().functor().packetOp(derived().nestedExpression().template packet<LoadMode>(index));
121  }
122 };
123 
124 } // end namespace Eigen
125 
126 #endif // EIGEN_CWISE_UNARY_OP_H
#define EIGEN_GENERIC_PUBLIC_INTERFACE(Derived)
const UnaryOp & functor() const
Definition: CwiseUnaryOp.h:74
EIGEN_STRONG_INLINE const Scalar coeff(Index index) const
Definition: CwiseUnaryOp.h:112
EIGEN_STRONG_INLINE PacketScalar packet(Index index) const
Definition: CwiseUnaryOp.h:118
#define EIGEN_STRONG_INLINE
EIGEN_STRONG_INLINE Index rows() const
Definition: CwiseUnaryOp.h:70
const internal::remove_all< typename XprType::Nested >::type & nestedExpression() const
Definition: CwiseUnaryOp.h:78
CwiseUnaryOpImpl< UnaryOp, XprType, typename internal::traits< XprType >::StorageKind >::Base Base
Definition: CwiseUnaryOp.h:64
Definition: LDLT.h:16
internal::dense_xpr_base< CwiseUnaryOp< UnaryOp, XprType > >::type Base
Definition: CwiseUnaryOp.h:98
EIGEN_STRONG_INLINE PacketScalar packet(Index rowId, Index colId) const
Definition: CwiseUnaryOp.h:107
const unsigned int PacketAccessBit
Definition: Constants.h:81
const unsigned int AlignedBit
Definition: Constants.h:147
const unsigned int HereditaryBits
Definition: Constants.h:152
internal::remove_all< typename XprType::Nested >::type & nestedExpression()
Definition: CwiseUnaryOp.h:82
CwiseUnaryOp< UnaryOp, XprType > Derived
Definition: CwiseUnaryOp.h:97
#define EIGEN_DENSE_PUBLIC_INTERFACE(Derived)
const UnaryOp m_functor
Definition: CwiseUnaryOp.h:86
XprType::Nested m_xpr
Definition: CwiseUnaryOp.h:85
Generic expression where a coefficient-wise unary operator is applied to an expression.
Definition: CwiseUnaryOp.h:59
EIGEN_STRONG_INLINE Index cols() const
Definition: CwiseUnaryOp.h:71
remove_reference< XprTypeNested >::type _XprTypeNested
Definition: CwiseUnaryOp.h:45
const unsigned int LinearAccessBit
Definition: Constants.h:117
result_of< UnaryOp(typename XprType::Scalar) >::type Scalar
Definition: CwiseUnaryOp.h:43


tuw_aruco
Author(s): Lukas Pfeifhofer
autogenerated on Mon Jun 10 2019 15:40:47