1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2015 Gael Guennebaud <gael.guennebaud@inria.fr>
//
// 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_SPARSE_CWISE_UNARY_OP_H
#define EIGEN_SPARSE_CWISE_UNARY_OP_H
namespace Eigen {
namespace internal {
template<typename UnaryOp, typename ArgType>
struct unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>
: public evaluator_base<CwiseUnaryOp<UnaryOp,ArgType> >
{
public:
typedef CwiseUnaryOp<UnaryOp, ArgType> XprType;
class InnerIterator;
class ReverseInnerIterator;
enum {
CoeffReadCost = evaluator<ArgType>::CoeffReadCost + functor_traits<UnaryOp>::Cost,
Flags = XprType::Flags
};
explicit unary_evaluator(const XprType& op) : m_functor(op.functor()), m_argImpl(op.nestedExpression())
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<UnaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_argImpl.nonZerosEstimate();
}
protected:
typedef typename evaluator<ArgType>::InnerIterator EvalIterator;
// typedef typename evaluator<ArgType>::ReverseInnerIterator EvalReverseIterator;
const UnaryOp m_functor;
evaluator<ArgType> m_argImpl;
};
template<typename UnaryOp, typename ArgType>
class unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>::InnerIterator
: public unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>::EvalIterator
{
typedef typename XprType::Scalar Scalar;
typedef typename unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>::EvalIterator Base;
public:
EIGEN_STRONG_INLINE InnerIterator(const unary_evaluator& unaryOp, Index outer)
: Base(unaryOp.m_argImpl,outer), m_functor(unaryOp.m_functor)
{}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{ Base::operator++(); return *this; }
EIGEN_STRONG_INLINE Scalar value() const { return m_functor(Base::value()); }
protected:
const UnaryOp m_functor;
private:
Scalar& valueRef();
};
// template<typename UnaryOp, typename ArgType>
// class unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>::ReverseInnerIterator
// : public unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>::EvalReverseIterator
// {
// typedef typename XprType::Scalar Scalar;
// typedef typename unary_evaluator<CwiseUnaryOp<UnaryOp,ArgType>, IteratorBased>::EvalReverseIterator Base;
// public:
//
// EIGEN_STRONG_INLINE ReverseInnerIterator(const XprType& unaryOp, typename XprType::Index outer)
// : Base(unaryOp.derived().nestedExpression(),outer), m_functor(unaryOp.derived().functor())
// {}
//
// EIGEN_STRONG_INLINE ReverseInnerIterator& operator--()
// { Base::operator--(); return *this; }
//
// EIGEN_STRONG_INLINE Scalar value() const { return m_functor(Base::value()); }
//
// protected:
// const UnaryOp m_functor;
// private:
// Scalar& valueRef();
// };
template<typename ViewOp, typename ArgType>
struct unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>
: public evaluator_base<CwiseUnaryView<ViewOp,ArgType> >
{
public:
typedef CwiseUnaryView<ViewOp, ArgType> XprType;
class InnerIterator;
class ReverseInnerIterator;
enum {
CoeffReadCost = evaluator<ArgType>::CoeffReadCost + functor_traits<ViewOp>::Cost,
Flags = XprType::Flags
};
explicit unary_evaluator(const XprType& op) : m_functor(op.functor()), m_argImpl(op.nestedExpression())
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<ViewOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
protected:
typedef typename evaluator<ArgType>::InnerIterator EvalIterator;
// typedef typename evaluator<ArgType>::ReverseInnerIterator EvalReverseIterator;
const ViewOp m_functor;
evaluator<ArgType> m_argImpl;
};
template<typename ViewOp, typename ArgType>
class unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>::InnerIterator
: public unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>::EvalIterator
{
typedef typename XprType::Scalar Scalar;
typedef typename unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>::EvalIterator Base;
public:
EIGEN_STRONG_INLINE InnerIterator(const unary_evaluator& unaryOp, Index outer)
: Base(unaryOp.m_argImpl,outer), m_functor(unaryOp.m_functor)
{}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{ Base::operator++(); return *this; }
EIGEN_STRONG_INLINE Scalar value() const { return m_functor(Base::value()); }
EIGEN_STRONG_INLINE Scalar& valueRef() { return m_functor(Base::valueRef()); }
protected:
const ViewOp m_functor;
};
// template<typename ViewOp, typename ArgType>
// class unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>::ReverseInnerIterator
// : public unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>::EvalReverseIterator
// {
// typedef typename XprType::Scalar Scalar;
// typedef typename unary_evaluator<CwiseUnaryView<ViewOp,ArgType>, IteratorBased>::EvalReverseIterator Base;
// public:
//
// EIGEN_STRONG_INLINE ReverseInnerIterator(const XprType& unaryOp, typename XprType::Index outer)
// : Base(unaryOp.derived().nestedExpression(),outer), m_functor(unaryOp.derived().functor())
// {}
//
// EIGEN_STRONG_INLINE ReverseInnerIterator& operator--()
// { Base::operator--(); return *this; }
//
// EIGEN_STRONG_INLINE Scalar value() const { return m_functor(Base::value()); }
// EIGEN_STRONG_INLINE Scalar& valueRef() { return m_functor(Base::valueRef()); }
//
// protected:
// const ViewOp m_functor;
// };
} // end namespace internal
template<typename Derived>
EIGEN_STRONG_INLINE Derived&
SparseMatrixBase<Derived>::operator*=(const Scalar& other)
{
for (Index j=0; j<outerSize(); ++j)
for (typename Derived::InnerIterator i(derived(),j); i; ++i)
i.valueRef() *= other;
return derived();
}
template<typename Derived>
EIGEN_STRONG_INLINE Derived&
SparseMatrixBase<Derived>::operator/=(const Scalar& other)
{
for (Index j=0; j<outerSize(); ++j)
for (typename Derived::InnerIterator i(derived(),j); i; ++i)
i.valueRef() /= other;
return derived();
}
} // end namespace Eigen
#endif // EIGEN_SPARSE_CWISE_UNARY_OP_H
|
