35#ifndef _BLAZE_MATH_EXPRESSIONS_SVECDVECKRONEXPR_H_
36#define _BLAZE_MATH_EXPRESSIONS_SVECDVECKRONEXPR_H_
90 :
public VecVecKronExpr< SparseVector< SVecDVecKronExpr<VT1,VT2,TF>, TF > >
110 static constexpr bool returnExpr = ( !IsTemporary_v<RN1> && !IsTemporary_v<RN2> );
178 if( index >=
lhs_.size() ) {
181 return (*
this)[index];
190 inline size_t size() const noexcept {
201 return lhs_.nonZeros() *
rhs_.size();
231 template<
typename T >
232 inline bool canAlias(
const T* alias )
const noexcept {
233 return (
lhs_.canAlias( alias ) ||
rhs_.canAlias( alias ) );
243 template<
typename T >
244 inline bool isAliased(
const T* alias )
const noexcept {
245 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
267 template<
typename VT >
274 if( rhs.
size() == 0UL ) {
281 const size_t N( y.size() );
282 const auto xend( x.end() );
284 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
285 for(
size_t j=0UL; j<N; ++j ) {
286 (*lhs)[xelem->index()*N+j] = xelem->value() * y[j];
305 template<
typename VT >
312 if( rhs.
size() == 0UL ) {
319 const size_t N( y.size() );
320 const auto xend( x.end() );
322 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
323 for(
size_t j=0UL; j<N; ++j ) {
324 (*lhs).append( xelem->index()*N+j, xelem->value() * y[j],
true );
343 template<
typename VT >
344 friend inline void addAssign( DenseVector<VT,TF>& lhs,
const SVecDVecKronExpr& rhs )
350 if( rhs.size() == 0UL ) {
357 const size_t N( y.size() );
358 const auto xend( x.end() );
360 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
361 for(
size_t j=0UL; j<N; ++j ) {
362 (*lhs)[xelem->index()*N+j] += xelem->value() * y[j];
386 template<
typename VT >
387 friend inline void subAssign( DenseVector<VT,TF>& lhs,
const SVecDVecKronExpr& rhs )
393 if( rhs.size() == 0UL ) {
400 const size_t N( y.size() );
401 const auto xend( x.end() );
403 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
404 for(
size_t j=0UL; j<N; ++j ) {
405 (*lhs)[xelem->index()*N+j] -= xelem->value() * y[j];
429 template<
typename VT >
430 friend inline void multAssign( DenseVector<VT,TF>& lhs,
const SVecDVecKronExpr& rhs )
436 if( rhs.size() == 0UL ) {
443 const size_t N( y.size() );
444 const auto xend( x.end() );
447 for(
auto xelem=x.begin(); xelem!=xend; ++xelem, ++i )
449 for( ; i<xelem->index(); ++i ) {
450 for(
size_t j=0UL; j<N; ++j )
451 reset( (*lhs)[i*N+j] );
454 for(
size_t j=0UL; j<N; ++j ) {
455 (*lhs)[xelem->index()*N+j] *= xelem->value() * y[j];
459 for( ; i<x.size(); ++i ) {
460 for(
size_t j=0UL; j<N; ++j )
461 reset( (*lhs)[i*N+j] );
506template<
typename VT1
509 , DisableIf_t< IsZero_v<VT1> >* =
nullptr >
510inline const SVecDVecKronExpr<VT1,VT2,TF>
511 svecdveckron(
const SparseVector<VT1,TF>& lhs,
const DenseVector<VT2,TF>& rhs )
515 return SVecDVecKronExpr<VT1,VT2,TF>( *lhs, *rhs );
534template<
typename VT1
537 , EnableIf_t< IsZero_v<VT1> >* =
nullptr >
539 svecdveckron(
const SparseVector<VT1,TF>& lhs,
const DenseVector<VT2,TF>& rhs )
543 using ReturnType =
const KronTrait_t< ResultType_t<VT1>, ResultType_t<VT2> >;
548 return ReturnType( (*lhs).size()*(*rhs).size() );
576template<
typename VT1
584 return svecdveckron( *lhs, *rhs );
Header file for auxiliary alias declarations.
typename T::CompositeType CompositeType_t
Alias declaration for nested CompositeType type definitions.
Definition: Aliases.h:110
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.
Definition: Aliases.h:470
typename T::ResultType ResultType_t
Alias declaration for nested ResultType type definitions.
Definition: Aliases.h:450
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.
Definition: Aliases.h:190
typename T::TransposeType TransposeType_t
Alias declaration for nested TransposeType type definitions.
Definition: Aliases.h:550
Header file for the alignment flag enumeration.
Header file for run time assertion macros.
Header file for the EnableIf class template.
Header file for the function trace functionality.
Header file for the If class template.
Header file for the IsExpression type trait class.
Header file for the IsTemporary type trait class.
Header file for the Kron product trait.
Deactivation of problematic macros.
Header file for the type list functionality.
Constraint on the data type.
Base class for N-dimensional dense vectors.
Definition: DenseVector.h:77
Expression object for sparse vector-dense vector Kronecker products.
Definition: SVecDVecKronExpr.h:92
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecDVecKronExpr.h:164
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecDVecKronExpr.h:125
decltype(std::declval< RN1 >() *std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: SVecDVecKronExpr.h:113
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: SVecDVecKronExpr.h:143
CompositeType_t< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:100
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecDVecKronExpr.h:177
ResultType_t< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:96
If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:135
KronTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecDVecKronExpr.h:124
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: SVecDVecKronExpr.h:110
ReturnType_t< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:98
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: SVecDVecKronExpr.h:220
LeftOperand lhs_
Left-hand side sparse vector of the Kronecker product expression.
Definition: SVecDVecKronExpr.h:251
ReturnType_t< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:97
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecDVecKronExpr.h:129
const ResultType CompositeType
Data type for composite expression templates.
Definition: SVecDVecKronExpr.h:132
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecDVecKronExpr.h:210
ResultType_t< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:95
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecDVecKronExpr.h:232
CompositeType_t< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:99
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecDVecKronExpr.h:190
SVecDVecKronExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecDVecKronExpr class.
Definition: SVecDVecKronExpr.h:152
RightOperand rhs_
Right-hand side dense vector of the Kronecker product expression.
Definition: SVecDVecKronExpr.h:252
If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:138
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: SVecDVecKronExpr.h:126
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecDVecKronExpr.h:200
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecDVecKronExpr.h:244
Base class for sparse vectors.
Definition: SparseVector.h:72
Constraint on the data type.
Constraint on the data type.
Constraint on the data type.
Header file for the Computation base class.
Header file for the DenseVector base class.
Header file for the SparseVector base class.
Header file for the VecVecKronExpr base class.
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:812
decltype(auto) kron(const DenseMatrix< MT1, SO1 > &lhs, const DenseMatrix< MT2, SO2 > &rhs)
Computes the Kronecker product of two dense matrices ( ).
Definition: DMatDMatKronExpr.h:957
#define BLAZE_CONSTRAINT_MUST_BE_VECTOR_WITH_TRANSPOSE_FLAG(T, TF)
Constraint on the data type.
Definition: TransposeFlag.h:63
#define BLAZE_CONSTRAINT_MUST_NOT_BE_ZERO_TYPE(T)
Constraint on the data type.
Definition: Zero.h:81
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_VECTOR_TYPE(T)
Constraint on the data type.
Definition: SparseVector.h:61
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_VECTOR_TYPE(T)
Constraint on the data type.
Definition: DenseVector.h:61
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECKRONEXPR(T1, T2)
Constraint on the data type.
Definition: VecVecKronExpr.h:102
#define BLAZE_CONSTRAINT_MUST_BE_ZERO_TYPE(T)
Constraint on the data type.
Definition: Zero.h:61
typename KronTrait< T1, T2 >::Type KronTrait_t
Auxiliary alias declaration for the KronTrait class template.
Definition: KronTrait.h:137
constexpr void reset(Matrix< MT, SO > &matrix)
Resetting the given matrix.
Definition: Matrix.h:806
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.
Definition: Assert.h:101
typename If< Condition >::template Type< T1, T2 > If_t
Auxiliary alias template for the If class template.
Definition: If.h:108
#define BLAZE_THROW_OUT_OF_RANGE(MESSAGE)
Macro for the emission of a std::out_of_range exception.
Definition: Exception.h:331
#define BLAZE_FUNCTION_TRACE
Function trace macro.
Definition: FunctionTrace.h:94
Header file for the exception macros of the math module.
Constraint on the data type.
Header file for the reset shim.
Header file for the serial shim.
Base class for all compute expression templates.
Definition: Computation.h:68
Base class for all vector/vector Kronecker expression templates.
Definition: VecVecKronExpr.h:69
Header file for the IsZero type trait.
Header file for basic type definitions.