[136] | 1 | // This file is part of Eigen, a lightweight C++ template library
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| 2 | // for linear algebra.
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| 3 | //
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| 4 | // Copyright (C) 2008-2010 Gael Guennebaud <gael.guennebaud@inria.fr>
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| 5 | //
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| 6 | // This Source Code Form is subject to the terms of the Mozilla
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| 7 | // Public License v. 2.0. If a copy of the MPL was not distributed
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| 8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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| 9 |
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| 10 | #ifndef EIGEN_SPARSE_CWISE_UNARY_OP_H
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| 11 | #define EIGEN_SPARSE_CWISE_UNARY_OP_H
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| 12 |
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| 13 | namespace Eigen {
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| 14 |
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| 15 | template<typename UnaryOp, typename MatrixType>
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| 16 | class CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>
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| 17 | : public SparseMatrixBase<CwiseUnaryOp<UnaryOp, MatrixType> >
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| 18 | {
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| 19 | public:
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| 20 |
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| 21 | class InnerIterator;
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| 22 | class ReverseInnerIterator;
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| 23 |
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| 24 | typedef CwiseUnaryOp<UnaryOp, MatrixType> Derived;
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| 25 | EIGEN_SPARSE_PUBLIC_INTERFACE(Derived)
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| 26 |
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| 27 | protected:
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| 28 | typedef typename internal::traits<Derived>::_XprTypeNested _MatrixTypeNested;
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| 29 | typedef typename _MatrixTypeNested::InnerIterator MatrixTypeIterator;
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| 30 | typedef typename _MatrixTypeNested::ReverseInnerIterator MatrixTypeReverseIterator;
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| 31 | };
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| 32 |
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| 33 | template<typename UnaryOp, typename MatrixType>
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| 34 | class CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>::InnerIterator
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| 35 | : public CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>::MatrixTypeIterator
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| 36 | {
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| 37 | typedef typename CwiseUnaryOpImpl::Scalar Scalar;
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| 38 | typedef typename CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>::MatrixTypeIterator Base;
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| 39 | public:
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| 40 |
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| 41 | EIGEN_STRONG_INLINE InnerIterator(const CwiseUnaryOpImpl& unaryOp, typename CwiseUnaryOpImpl::Index outer)
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| 42 | : Base(unaryOp.derived().nestedExpression(),outer), m_functor(unaryOp.derived().functor())
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| 43 | {}
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| 44 |
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| 45 | EIGEN_STRONG_INLINE InnerIterator& operator++()
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| 46 | { Base::operator++(); return *this; }
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| 47 |
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| 48 | EIGEN_STRONG_INLINE typename CwiseUnaryOpImpl::Scalar value() const { return m_functor(Base::value()); }
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| 49 |
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| 50 | protected:
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| 51 | const UnaryOp m_functor;
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| 52 | private:
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| 53 | typename CwiseUnaryOpImpl::Scalar& valueRef();
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| 54 | };
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| 55 |
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| 56 | template<typename UnaryOp, typename MatrixType>
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| 57 | class CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>::ReverseInnerIterator
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| 58 | : public CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>::MatrixTypeReverseIterator
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| 59 | {
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| 60 | typedef typename CwiseUnaryOpImpl::Scalar Scalar;
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| 61 | typedef typename CwiseUnaryOpImpl<UnaryOp,MatrixType,Sparse>::MatrixTypeReverseIterator Base;
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| 62 | public:
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| 63 |
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| 64 | EIGEN_STRONG_INLINE ReverseInnerIterator(const CwiseUnaryOpImpl& unaryOp, typename CwiseUnaryOpImpl::Index outer)
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| 65 | : Base(unaryOp.derived().nestedExpression(),outer), m_functor(unaryOp.derived().functor())
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| 66 | {}
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| 67 |
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| 68 | EIGEN_STRONG_INLINE ReverseInnerIterator& operator--()
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| 69 | { Base::operator--(); return *this; }
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| 70 |
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| 71 | EIGEN_STRONG_INLINE typename CwiseUnaryOpImpl::Scalar value() const { return m_functor(Base::value()); }
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| 72 |
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| 73 | protected:
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| 74 | const UnaryOp m_functor;
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| 75 | private:
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| 76 | typename CwiseUnaryOpImpl::Scalar& valueRef();
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| 77 | };
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| 78 |
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| 79 | template<typename ViewOp, typename MatrixType>
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| 80 | class CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>
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| 81 | : public SparseMatrixBase<CwiseUnaryView<ViewOp, MatrixType> >
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| 82 | {
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| 83 | public:
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| 84 |
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| 85 | class InnerIterator;
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| 86 | class ReverseInnerIterator;
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| 87 |
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| 88 | typedef CwiseUnaryView<ViewOp, MatrixType> Derived;
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| 89 | EIGEN_SPARSE_PUBLIC_INTERFACE(Derived)
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| 90 |
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| 91 | protected:
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| 92 | typedef typename internal::traits<Derived>::_MatrixTypeNested _MatrixTypeNested;
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| 93 | typedef typename _MatrixTypeNested::InnerIterator MatrixTypeIterator;
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| 94 | typedef typename _MatrixTypeNested::ReverseInnerIterator MatrixTypeReverseIterator;
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| 95 | };
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| 96 |
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| 97 | template<typename ViewOp, typename MatrixType>
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| 98 | class CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>::InnerIterator
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| 99 | : public CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>::MatrixTypeIterator
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| 100 | {
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| 101 | typedef typename CwiseUnaryViewImpl::Scalar Scalar;
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| 102 | typedef typename CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>::MatrixTypeIterator Base;
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| 103 | public:
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| 104 |
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| 105 | EIGEN_STRONG_INLINE InnerIterator(const CwiseUnaryViewImpl& unaryOp, typename CwiseUnaryViewImpl::Index outer)
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| 106 | : Base(unaryOp.derived().nestedExpression(),outer), m_functor(unaryOp.derived().functor())
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| 107 | {}
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| 108 |
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| 109 | EIGEN_STRONG_INLINE InnerIterator& operator++()
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| 110 | { Base::operator++(); return *this; }
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| 111 |
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| 112 | EIGEN_STRONG_INLINE typename CwiseUnaryViewImpl::Scalar value() const { return m_functor(Base::value()); }
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| 113 | EIGEN_STRONG_INLINE typename CwiseUnaryViewImpl::Scalar& valueRef() { return m_functor(Base::valueRef()); }
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| 114 |
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| 115 | protected:
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| 116 | const ViewOp m_functor;
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| 117 | };
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| 118 |
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| 119 | template<typename ViewOp, typename MatrixType>
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| 120 | class CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>::ReverseInnerIterator
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| 121 | : public CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>::MatrixTypeReverseIterator
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| 122 | {
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| 123 | typedef typename CwiseUnaryViewImpl::Scalar Scalar;
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| 124 | typedef typename CwiseUnaryViewImpl<ViewOp,MatrixType,Sparse>::MatrixTypeReverseIterator Base;
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| 125 | public:
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| 126 |
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| 127 | EIGEN_STRONG_INLINE ReverseInnerIterator(const CwiseUnaryViewImpl& unaryOp, typename CwiseUnaryViewImpl::Index outer)
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| 128 | : Base(unaryOp.derived().nestedExpression(),outer), m_functor(unaryOp.derived().functor())
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| 129 | {}
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| 130 |
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| 131 | EIGEN_STRONG_INLINE ReverseInnerIterator& operator--()
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| 132 | { Base::operator--(); return *this; }
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| 133 |
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| 134 | EIGEN_STRONG_INLINE typename CwiseUnaryViewImpl::Scalar value() const { return m_functor(Base::value()); }
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| 135 | EIGEN_STRONG_INLINE typename CwiseUnaryViewImpl::Scalar& valueRef() { return m_functor(Base::valueRef()); }
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| 136 |
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| 137 | protected:
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| 138 | const ViewOp m_functor;
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| 139 | };
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| 140 |
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| 141 | template<typename Derived>
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| 142 | EIGEN_STRONG_INLINE Derived&
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| 143 | SparseMatrixBase<Derived>::operator*=(const Scalar& other)
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| 144 | {
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| 145 | for (Index j=0; j<outerSize(); ++j)
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| 146 | for (typename Derived::InnerIterator i(derived(),j); i; ++i)
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| 147 | i.valueRef() *= other;
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| 148 | return derived();
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| 149 | }
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| 150 |
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| 151 | template<typename Derived>
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| 152 | EIGEN_STRONG_INLINE Derived&
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| 153 | SparseMatrixBase<Derived>::operator/=(const Scalar& other)
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| 154 | {
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| 155 | for (Index j=0; j<outerSize(); ++j)
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| 156 | for (typename Derived::InnerIterator i(derived(),j); i; ++i)
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| 157 | i.valueRef() /= other;
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| 158 | return derived();
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| 159 | }
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| 160 |
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| 161 | } // end namespace Eigen
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| 162 |
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| 163 | #endif // EIGEN_SPARSE_CWISE_UNARY_OP_H
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