// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2014 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_BINARY_OP_H
#define EIGEN_SPARSE_CWISE_BINARY_OP_H
namespace Eigen {
// Here we have to handle 3 cases:
// 1 - sparse op dense
// 2 - dense op sparse
// 3 - sparse op sparse
// We also need to implement a 4th iterator for:
// 4 - dense op dense
// Finally, we also need to distinguish between the product and other operations :
// configuration returned mode
// 1 - sparse op dense product sparse
// generic dense
// 2 - dense op sparse product sparse
// generic dense
// 3 - sparse op sparse product sparse
// generic sparse
// 4 - dense op dense product dense
// generic dense
//
// TODO to ease compiler job, we could specialize product/quotient with a scalar
// and fallback to cwise-unary evaluator using bind1st_op and bind2nd_op.
template<typename BinaryOp, typename Lhs, typename Rhs>
class CwiseBinaryOpImpl<BinaryOp, Lhs, Rhs, Sparse>
: public SparseMatrixBase<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
{
public:
typedef CwiseBinaryOp<BinaryOp, Lhs, Rhs> Derived;
typedef SparseMatrixBase<Derived> Base;
EIGEN_SPARSE_PUBLIC_INTERFACE(Derived)
CwiseBinaryOpImpl()
{
EIGEN_STATIC_ASSERT((
(!internal::is_same<typename internal::traits<Lhs>::StorageKind,
typename internal::traits<Rhs>::StorageKind>::value)
|| ((internal::evaluator<Lhs>::Flags&RowMajorBit) == (internal::evaluator<Rhs>::Flags&RowMajorBit))),
THE_STORAGE_ORDER_OF_BOTH_SIDES_MUST_MATCH);
}
};
namespace internal {
// Generic "sparse OP sparse"
template<typename XprType> struct binary_sparse_evaluator;
template<typename BinaryOp, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<BinaryOp, Lhs, Rhs>, IteratorBased, IteratorBased>
: evaluator_base<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
{
protected:
typedef typename evaluator<Lhs>::InnerIterator LhsIterator;
typedef typename evaluator<Rhs>::InnerIterator RhsIterator;
typedef CwiseBinaryOp<BinaryOp, Lhs, Rhs> XprType;
typedef typename traits<XprType>::Scalar Scalar;
typedef typename XprType::StorageIndex StorageIndex;
public:
class InnerIterator
{
public:
EIGEN_STRONG_INLINE InnerIterator(const binary_evaluator& aEval, Index outer)
: m_lhsIter(aEval.m_lhsImpl,outer), m_rhsIter(aEval.m_rhsImpl,outer), m_functor(aEval.m_functor)
{
this->operator++();
}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{
if (m_lhsIter && m_rhsIter && (m_lhsIter.index() == m_rhsIter.index()))
{
m_id = m_lhsIter.index();
m_value = m_functor(m_lhsIter.value(), m_rhsIter.value());
++m_lhsIter;
++m_rhsIter;
}
else if (m_lhsIter && (!m_rhsIter || (m_lhsIter.index() < m_rhsIter.index())))
{
m_id = m_lhsIter.index();
m_value = m_functor(m_lhsIter.value(), Scalar(0));
++m_lhsIter;
}
else if (m_rhsIter && (!m_lhsIter || (m_lhsIter.index() > m_rhsIter.index())))
{
m_id = m_rhsIter.index();
m_value = m_functor(Scalar(0), m_rhsIter.value());
++m_rhsIter;
}
else
{
m_value = 0; // this is to avoid a compilation warning
m_id = -1;
}
return *this;
}
EIGEN_STRONG_INLINE Scalar value() const { return m_value; }
EIGEN_STRONG_INLINE StorageIndex index() const { return m_id; }
EIGEN_STRONG_INLINE Index outer() const { return m_lhsIter.outer(); }
EIGEN_STRONG_INLINE Index row() const { return Lhs::IsRowMajor ? m_lhsIter.row() : index(); }
EIGEN_STRONG_INLINE Index col() const { return Lhs::IsRowMajor ? index() : m_lhsIter.col(); }
EIGEN_STRONG_INLINE operator bool() const { return m_id>=0; }
protected:
LhsIterator m_lhsIter;
RhsIterator m_rhsIter;
const BinaryOp& m_functor;
Scalar m_value;
StorageIndex m_id;
};
enum {
CoeffReadCost = evaluator<Lhs>::CoeffReadCost + evaluator<Rhs>::CoeffReadCost + functor_traits<BinaryOp>::Cost,
Flags = XprType::Flags
};
explicit binary_evaluator(const XprType& xpr)
: m_functor(xpr.functor()),
m_lhsImpl(xpr.lhs()),
m_rhsImpl(xpr.rhs())
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<BinaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_lhsImpl.nonZerosEstimate() + m_rhsImpl.nonZerosEstimate();
}
protected:
const BinaryOp m_functor;
evaluator<Lhs> m_lhsImpl;
evaluator<Rhs> m_rhsImpl;
};
// dense op sparse
template<typename BinaryOp, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<BinaryOp, Lhs, Rhs>, IndexBased, IteratorBased>
: evaluator_base<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
{
protected:
typedef typename evaluator<Rhs>::InnerIterator RhsIterator;
typedef CwiseBinaryOp<BinaryOp, Lhs, Rhs> XprType;
typedef typename traits<XprType>::Scalar Scalar;
typedef typename XprType::StorageIndex StorageIndex;
public:
class InnerIterator
{
enum { IsRowMajor = (int(Rhs::Flags)&RowMajorBit)==RowMajorBit };
public:
EIGEN_STRONG_INLINE InnerIterator(const binary_evaluator& aEval, Index outer)
: m_lhsEval(aEval.m_lhsImpl), m_rhsIter(aEval.m_rhsImpl,outer), m_functor(aEval.m_functor), m_value(0), m_id(-1), m_innerSize(aEval.m_expr.rhs().innerSize())
{
this->operator++();
}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{
++m_id;
if(m_id<m_innerSize)
{
Scalar lhsVal = m_lhsEval.coeff(IsRowMajor?m_rhsIter.outer():m_id,
IsRowMajor?m_id:m_rhsIter.outer());
if(m_rhsIter && m_rhsIter.index()==m_id)
{
m_value = m_functor(lhsVal, m_rhsIter.value());
++m_rhsIter;
}
else
m_value = m_functor(lhsVal, Scalar(0));
}
return *this;
}
EIGEN_STRONG_INLINE Scalar value() const { eigen_internal_assert(m_id<m_innerSize); return m_value; }
EIGEN_STRONG_INLINE StorageIndex index() const { return m_id; }
EIGEN_STRONG_INLINE Index outer() const { return m_rhsIter.outer(); }
EIGEN_STRONG_INLINE Index row() const { return IsRowMajor ? m_rhsIter.outer() : m_id; }
EIGEN_STRONG_INLINE Index col() const { return IsRowMajor ? m_id : m_rhsIter.outer(); }
EIGEN_STRONG_INLINE operator bool() const { return m_id<m_innerSize; }
protected:
const evaluator<Lhs> &m_lhsEval;
RhsIterator m_rhsIter;
const BinaryOp& m_functor;
Scalar m_value;
StorageIndex m_id;
StorageIndex m_innerSize;
};
enum {
CoeffReadCost = evaluator<Lhs>::CoeffReadCost + evaluator<Rhs>::CoeffReadCost + functor_traits<BinaryOp>::Cost,
// Expose storage order of the sparse expression
Flags = (XprType::Flags & ~RowMajorBit) | (int(Rhs::Flags)&RowMajorBit)
};
explicit binary_evaluator(const XprType& xpr)
: m_functor(xpr.functor()),
m_lhsImpl(xpr.lhs()),
m_rhsImpl(xpr.rhs()),
m_expr(xpr)
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<BinaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_expr.size();
}
protected:
const BinaryOp m_functor;
evaluator<Lhs> m_lhsImpl;
evaluator<Rhs> m_rhsImpl;
const XprType &m_expr;
};
// sparse op dense
template<typename BinaryOp, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<BinaryOp, Lhs, Rhs>, IteratorBased, IndexBased>
: evaluator_base<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
{
protected:
typedef typename evaluator<Lhs>::InnerIterator LhsIterator;
typedef CwiseBinaryOp<BinaryOp, Lhs, Rhs> XprType;
typedef typename traits<XprType>::Scalar Scalar;
typedef typename XprType::StorageIndex StorageIndex;
public:
class InnerIterator
{
enum { IsRowMajor = (int(Lhs::Flags)&RowMajorBit)==RowMajorBit };
public:
EIGEN_STRONG_INLINE InnerIterator(const binary_evaluator& aEval, Index outer)
: m_lhsIter(aEval.m_lhsImpl,outer), m_rhsEval(aEval.m_rhsImpl), m_functor(aEval.m_functor), m_value(0), m_id(-1), m_innerSize(aEval.m_expr.lhs().innerSize())
{
this->operator++();
}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{
++m_id;
if(m_id<m_innerSize)
{
Scalar rhsVal = m_rhsEval.coeff(IsRowMajor?m_lhsIter.outer():m_id,
IsRowMajor?m_id:m_lhsIter.outer());
if(m_lhsIter && m_lhsIter.index()==m_id)
{
m_value = m_functor(m_lhsIter.value(), rhsVal);
++m_lhsIter;
}
else
m_value = m_functor(Scalar(0),rhsVal);
}
return *this;
}
EIGEN_STRONG_INLINE Scalar value() const { eigen_internal_assert(m_id<m_innerSize); return m_value; }
EIGEN_STRONG_INLINE StorageIndex index() const { return m_id; }
EIGEN_STRONG_INLINE Index outer() const { return m_lhsIter.outer(); }
EIGEN_STRONG_INLINE Index row() const { return IsRowMajor ? m_lhsIter.outer() : m_id; }
EIGEN_STRONG_INLINE Index col() const { return IsRowMajor ? m_id : m_lhsIter.outer(); }
EIGEN_STRONG_INLINE operator bool() const { return m_id<m_innerSize; }
protected:
LhsIterator m_lhsIter;
const evaluator<Rhs> &m_rhsEval;
const BinaryOp& m_functor;
Scalar m_value;
StorageIndex m_id;
StorageIndex m_innerSize;
};
enum {
CoeffReadCost = evaluator<Lhs>::CoeffReadCost + evaluator<Rhs>::CoeffReadCost + functor_traits<BinaryOp>::Cost,
// Expose storage order of the sparse expression
Flags = (XprType::Flags & ~RowMajorBit) | (int(Lhs::Flags)&RowMajorBit)
};
explicit binary_evaluator(const XprType& xpr)
: m_functor(xpr.functor()),
m_lhsImpl(xpr.lhs()),
m_rhsImpl(xpr.rhs()),
m_expr(xpr)
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<BinaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_expr.size();
}
protected:
const BinaryOp m_functor;
evaluator<Lhs> m_lhsImpl;
evaluator<Rhs> m_rhsImpl;
const XprType &m_expr;
};
template<typename T,
typename LhsKind = typename evaluator_traits<typename T::Lhs>::Kind,
typename RhsKind = typename evaluator_traits<typename T::Rhs>::Kind,
typename LhsScalar = typename traits<typename T::Lhs>::Scalar,
typename RhsScalar = typename traits<typename T::Rhs>::Scalar> struct sparse_conjunction_evaluator;
// "sparse .* sparse"
template<typename T1, typename T2, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs>, IteratorBased, IteratorBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "dense .* sparse"
template<typename T1, typename T2, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs>, IndexBased, IteratorBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "sparse .* dense"
template<typename T1, typename T2, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs>, IteratorBased, IndexBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_product_op<T1,T2>, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "sparse ./ dense"
template<typename T1, typename T2, typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_quotient_op<T1,T2>, Lhs, Rhs>, IteratorBased, IndexBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_quotient_op<T1,T2>, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_quotient_op<T1,T2>, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "sparse && sparse"
template<typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs>, IteratorBased, IteratorBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "dense && sparse"
template<typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs>, IndexBased, IteratorBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "sparse && dense"
template<typename Lhs, typename Rhs>
struct binary_evaluator<CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs>, IteratorBased, IndexBased>
: sparse_conjunction_evaluator<CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs> >
{
typedef CwiseBinaryOp<scalar_boolean_and_op, Lhs, Rhs> XprType;
typedef sparse_conjunction_evaluator<XprType> Base;
explicit binary_evaluator(const XprType& xpr) : Base(xpr) {}
};
// "sparse ^ sparse"
template<typename XprType>
struct sparse_conjunction_evaluator<XprType, IteratorBased, IteratorBased>
: evaluator_base<XprType>
{
protected:
typedef typename XprType::Functor BinaryOp;
typedef typename XprType::Lhs LhsArg;
typedef typename XprType::Rhs RhsArg;
typedef typename evaluator<LhsArg>::InnerIterator LhsIterator;
typedef typename evaluator<RhsArg>::InnerIterator RhsIterator;
typedef typename XprType::StorageIndex StorageIndex;
typedef typename traits<XprType>::Scalar Scalar;
public:
class InnerIterator
{
public:
EIGEN_STRONG_INLINE InnerIterator(const sparse_conjunction_evaluator& aEval, Index outer)
: m_lhsIter(aEval.m_lhsImpl,outer), m_rhsIter(aEval.m_rhsImpl,outer), m_functor(aEval.m_functor)
{
while (m_lhsIter && m_rhsIter && (m_lhsIter.index() != m_rhsIter.index()))
{
if (m_lhsIter.index() < m_rhsIter.index())
++m_lhsIter;
else
++m_rhsIter;
}
}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{
++m_lhsIter;
++m_rhsIter;
while (m_lhsIter && m_rhsIter && (m_lhsIter.index() != m_rhsIter.index()))
{
if (m_lhsIter.index() < m_rhsIter.index())
++m_lhsIter;
else
++m_rhsIter;
}
return *this;
}
EIGEN_STRONG_INLINE Scalar value() const { return m_functor(m_lhsIter.value(), m_rhsIter.value()); }
EIGEN_STRONG_INLINE StorageIndex index() const { return m_lhsIter.index(); }
EIGEN_STRONG_INLINE Index outer() const { return m_lhsIter.outer(); }
EIGEN_STRONG_INLINE Index row() const { return m_lhsIter.row(); }
EIGEN_STRONG_INLINE Index col() const { return m_lhsIter.col(); }
EIGEN_STRONG_INLINE operator bool() const { return (m_lhsIter && m_rhsIter); }
protected:
LhsIterator m_lhsIter;
RhsIterator m_rhsIter;
const BinaryOp& m_functor;
};
enum {
CoeffReadCost = evaluator<LhsArg>::CoeffReadCost + evaluator<RhsArg>::CoeffReadCost + functor_traits<BinaryOp>::Cost,
Flags = XprType::Flags
};
explicit sparse_conjunction_evaluator(const XprType& xpr)
: m_functor(xpr.functor()),
m_lhsImpl(xpr.lhs()),
m_rhsImpl(xpr.rhs())
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<BinaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return (std::min)(m_lhsImpl.nonZerosEstimate(), m_rhsImpl.nonZerosEstimate());
}
protected:
const BinaryOp m_functor;
evaluator<LhsArg> m_lhsImpl;
evaluator<RhsArg> m_rhsImpl;
};
// "dense ^ sparse"
template<typename XprType>
struct sparse_conjunction_evaluator<XprType, IndexBased, IteratorBased>
: evaluator_base<XprType>
{
protected:
typedef typename XprType::Functor BinaryOp;
typedef typename XprType::Lhs LhsArg;
typedef typename XprType::Rhs RhsArg;
typedef evaluator<LhsArg> LhsEvaluator;
typedef typename evaluator<RhsArg>::InnerIterator RhsIterator;
typedef typename XprType::StorageIndex StorageIndex;
typedef typename traits<XprType>::Scalar Scalar;
public:
class InnerIterator
{
enum { IsRowMajor = (int(RhsArg::Flags)&RowMajorBit)==RowMajorBit };
public:
EIGEN_STRONG_INLINE InnerIterator(const sparse_conjunction_evaluator& aEval, Index outer)
: m_lhsEval(aEval.m_lhsImpl), m_rhsIter(aEval.m_rhsImpl,outer), m_functor(aEval.m_functor), m_outer(outer)
{}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{
++m_rhsIter;
return *this;
}
EIGEN_STRONG_INLINE Scalar value() const
{ return m_functor(m_lhsEval.coeff(IsRowMajor?m_outer:m_rhsIter.index(),IsRowMajor?m_rhsIter.index():m_outer), m_rhsIter.value()); }
EIGEN_STRONG_INLINE StorageIndex index() const { return m_rhsIter.index(); }
EIGEN_STRONG_INLINE Index outer() const { return m_rhsIter.outer(); }
EIGEN_STRONG_INLINE Index row() const { return m_rhsIter.row(); }
EIGEN_STRONG_INLINE Index col() const { return m_rhsIter.col(); }
EIGEN_STRONG_INLINE operator bool() const { return m_rhsIter; }
protected:
const LhsEvaluator &m_lhsEval;
RhsIterator m_rhsIter;
const BinaryOp& m_functor;
const Index m_outer;
};
enum {
CoeffReadCost = evaluator<LhsArg>::CoeffReadCost + evaluator<RhsArg>::CoeffReadCost + functor_traits<BinaryOp>::Cost,
// Expose storage order of the sparse expression
Flags = (XprType::Flags & ~RowMajorBit) | (int(RhsArg::Flags)&RowMajorBit)
};
explicit sparse_conjunction_evaluator(const XprType& xpr)
: m_functor(xpr.functor()),
m_lhsImpl(xpr.lhs()),
m_rhsImpl(xpr.rhs())
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<BinaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_rhsImpl.nonZerosEstimate();
}
protected:
const BinaryOp m_functor;
evaluator<LhsArg> m_lhsImpl;
evaluator<RhsArg> m_rhsImpl;
};
// "sparse ^ dense"
template<typename XprType>
struct sparse_conjunction_evaluator<XprType, IteratorBased, IndexBased>
: evaluator_base<XprType>
{
protected:
typedef typename XprType::Functor BinaryOp;
typedef typename XprType::Lhs LhsArg;
typedef typename XprType::Rhs RhsArg;
typedef typename evaluator<LhsArg>::InnerIterator LhsIterator;
typedef evaluator<RhsArg> RhsEvaluator;
typedef typename XprType::StorageIndex StorageIndex;
typedef typename traits<XprType>::Scalar Scalar;
public:
class InnerIterator
{
enum { IsRowMajor = (int(LhsArg::Flags)&RowMajorBit)==RowMajorBit };
public:
EIGEN_STRONG_INLINE InnerIterator(const sparse_conjunction_evaluator& aEval, Index outer)
: m_lhsIter(aEval.m_lhsImpl,outer), m_rhsEval(aEval.m_rhsImpl), m_functor(aEval.m_functor), m_outer(outer)
{}
EIGEN_STRONG_INLINE InnerIterator& operator++()
{
++m_lhsIter;
return *this;
}
EIGEN_STRONG_INLINE Scalar value() const
{ return m_functor(m_lhsIter.value(),
m_rhsEval.coeff(IsRowMajor?m_outer:m_lhsIter.index(),IsRowMajor?m_lhsIter.index():m_outer)); }
EIGEN_STRONG_INLINE StorageIndex index() const { return m_lhsIter.index(); }
EIGEN_STRONG_INLINE Index outer() const { return m_lhsIter.outer(); }
EIGEN_STRONG_INLINE Index row() const { return m_lhsIter.row(); }
EIGEN_STRONG_INLINE Index col() const { return m_lhsIter.col(); }
EIGEN_STRONG_INLINE operator bool() const { return m_lhsIter; }
protected:
LhsIterator m_lhsIter;
const evaluator<RhsArg> &m_rhsEval;
const BinaryOp& m_functor;
const Index m_outer;
};
enum {
CoeffReadCost = evaluator<LhsArg>::CoeffReadCost + evaluator<RhsArg>::CoeffReadCost + functor_traits<BinaryOp>::Cost,
// Expose storage order of the sparse expression
Flags = (XprType::Flags & ~RowMajorBit) | (int(LhsArg::Flags)&RowMajorBit)
};
explicit sparse_conjunction_evaluator(const XprType& xpr)
: m_functor(xpr.functor()),
m_lhsImpl(xpr.lhs()),
m_rhsImpl(xpr.rhs())
{
EIGEN_INTERNAL_CHECK_COST_VALUE(functor_traits<BinaryOp>::Cost);
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_lhsImpl.nonZerosEstimate();
}
protected:
const BinaryOp m_functor;
evaluator<LhsArg> m_lhsImpl;
evaluator<RhsArg> m_rhsImpl;
};
}
/***************************************************************************
* Implementation of SparseMatrixBase and SparseCwise functions/operators
***************************************************************************/
template<typename Derived>
template<typename OtherDerived>
Derived& SparseMatrixBase<Derived>::operator+=(const EigenBase<OtherDerived> &other)
{
call_assignment(derived(), other.derived(), internal::add_assign_op<Scalar,typename OtherDerived::Scalar>());
return derived();
}
template<typename Derived>
template<typename OtherDerived>
Derived& SparseMatrixBase<Derived>::operator-=(const EigenBase<OtherDerived> &other)
{
call_assignment(derived(), other.derived(), internal::assign_op<Scalar,typename OtherDerived::Scalar>());
return derived();
}
template<typename Derived>
template<typename OtherDerived>
EIGEN_STRONG_INLINE Derived &
SparseMatrixBase<Derived>::operator-=(const SparseMatrixBase<OtherDerived> &other)
{
return derived() = derived() - other.derived();
}
template<typename Derived>
template<typename OtherDerived>
EIGEN_STRONG_INLINE Derived &
SparseMatrixBase<Derived>::operator+=(const SparseMatrixBase<OtherDerived>& other)
{
return derived() = derived() + other.derived();
}
template<typename Derived>
template<typename OtherDerived>
Derived& SparseMatrixBase<Derived>::operator+=(const DiagonalBase<OtherDerived>& other)
{
call_assignment_no_alias(derived(), other.derived(), internal::add_assign_op<Scalar,typename OtherDerived::Scalar>());
return derived();
}
template<typename Derived>
template<typename OtherDerived>
Derived& SparseMatrixBase<Derived>::operator-=(const DiagonalBase<OtherDerived>& other)
{
call_assignment_no_alias(derived(), other.derived(), internal::sub_assign_op<Scalar,typename OtherDerived::Scalar>());
return derived();
}
template<typename Derived>
template<typename OtherDerived>
EIGEN_STRONG_INLINE const typename SparseMatrixBase<Derived>::template CwiseProductDenseReturnType<OtherDerived>::Type
SparseMatrixBase<Derived>::cwiseProduct(const MatrixBase<OtherDerived> &other) const
{
return typename CwiseProductDenseReturnType<OtherDerived>::Type(derived(), other.derived());
}
template<typename DenseDerived, typename SparseDerived>
EIGEN_STRONG_INLINE const CwiseBinaryOp<internal::scalar_sum_op<typename DenseDerived::Scalar,typename SparseDerived::Scalar>, const DenseDerived, const SparseDerived>
operator+(const MatrixBase<DenseDerived> &a, const SparseMatrixBase<SparseDerived> &b)
{
return CwiseBinaryOp<internal::scalar_sum_op<typename DenseDerived::Scalar,typename SparseDerived::Scalar>, const DenseDerived, const SparseDerived>(a.derived(), b.derived());
}
template<typename SparseDerived, typename DenseDerived>
EIGEN_STRONG_INLINE const CwiseBinaryOp<internal::scalar_sum_op<typename SparseDerived::Scalar,typename DenseDerived::Scalar>, const SparseDerived, const DenseDerived>
operator+(const SparseMatrixBase<SparseDerived> &a, const MatrixBase<DenseDerived> &b)
{
return CwiseBinaryOp<internal::scalar_sum_op<typename SparseDerived::Scalar,typename DenseDerived::Scalar>, const SparseDerived, const DenseDerived>(a.derived(), b.derived());
}
template<typename DenseDerived, typename SparseDerived>
EIGEN_STRONG_INLINE const CwiseBinaryOp<internal::scalar_difference_op<typename DenseDerived::Scalar,typename SparseDerived::Scalar>, const DenseDerived, const SparseDerived>
operator-(const MatrixBase<DenseDerived> &a, const SparseMatrixBase<SparseDerived> &b)
{
return CwiseBinaryOp<internal::scalar_difference_op<typename DenseDerived::Scalar,typename SparseDerived::Scalar>, const DenseDerived, const SparseDerived>(a.derived(), b.derived());
}
template<typename SparseDerived, typename DenseDerived>
EIGEN_STRONG_INLINE const CwiseBinaryOp<internal::scalar_difference_op<typename SparseDerived::Scalar,typename DenseDerived::Scalar>, const SparseDerived, const DenseDerived>
operator-(const SparseMatrixBase<SparseDerived> &a, const MatrixBase<DenseDerived> &b)
{
return CwiseBinaryOp<internal::scalar_difference_op<typename SparseDerived::Scalar,typename DenseDerived::Scalar>, const SparseDerived, const DenseDerived>(a.derived(), b.derived());
}
} // end namespace Eigen
#endif // EIGEN_SPARSE_CWISE_BINARY_OP_H