35#ifndef _BLAZE_MATH_EXPRESSIONS_SVECSVECKRONEXPR_H_
36#define _BLAZE_MATH_EXPRESSIONS_SVECSVECKRONEXPR_H_
89 :
public VecVecKronExpr< SparseVector< SVecSVecKronExpr<VT1,VT2,TF>, TF > >
109 static constexpr bool returnExpr = ( !IsTemporary_v<RN1> && !IsTemporary_v<RN2> );
174 if( index >=
lhs_.size() ) {
177 return (*
this)[index];
186 inline size_t size() const noexcept {
197 return lhs_.nonZeros() *
rhs_.nonZeros();
227 template<
typename T >
228 inline bool canAlias(
const T* alias )
const noexcept {
229 return (
lhs_.canAlias( alias ) ||
rhs_.canAlias( alias ) );
239 template<
typename T >
240 inline bool isAliased(
const T* alias )
const noexcept {
241 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
263 template<
typename VT >
270 if( rhs.
size() == 0UL ) {
277 const size_t N( y.size() );
278 const auto xend( x.end() );
279 const auto yend( y.end() );
281 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
282 for(
auto yelem=y.begin(); yelem!=yend; ++yelem ) {
283 (*lhs)[xelem->index()*N+yelem->index()] = xelem->value() * yelem->value();
302 template<
typename VT >
309 if( rhs.
size() == 0UL ) {
316 const size_t N( y.size() );
317 const auto xend( x.end() );
318 const auto yend( y.end() );
320 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
321 for(
auto yelem=y.begin(); yelem!=yend; ++yelem ) {
322 (*lhs).append( xelem->index()*N+yelem->index(), xelem->value() * yelem->value(),
true );
342 template<
typename VT >
343 friend inline void addAssign( DenseVector<VT,TF>& lhs,
const SVecSVecKronExpr& rhs )
349 if( rhs.size() == 0UL ) {
356 const size_t N( y.size() );
357 const auto xend( x.end() );
358 const auto yend( y.end() );
360 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
361 for(
auto yelem=y.begin(); yelem!=yend; ++yelem ) {
362 (*lhs)[xelem->index()*N+yelem->index()] += xelem->value() * yelem->value();
386 template<
typename VT >
387 friend inline void subAssign( DenseVector<VT,TF>& lhs,
const SVecSVecKronExpr& rhs )
393 if( rhs.size() == 0UL ) {
400 const size_t N( y.size() );
401 const auto xend( x.end() );
402 const auto yend( y.end() );
404 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
405 for(
auto yelem=y.begin(); yelem!=yend; ++yelem ) {
406 (*lhs)[xelem->index()*N+yelem->index()] -= xelem->value() * yelem->value();
430 template<
typename VT >
431 friend inline void multAssign( DenseVector<VT,TF>& lhs,
const SVecSVecKronExpr& rhs )
437 if( rhs.size() == 0UL ) {
444 const size_t N( y.size() );
445 const auto xend( x.end() );
446 const auto yend( y.end() );
449 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
450 for(
auto yelem=y.begin(); yelem!=yend; ++yelem, ++i ) {
451 const size_t index( xelem->index()*N+yelem->index() );
452 for( ; i<index; ++i )
454 (*lhs)[index] *= xelem->value() * yelem->value();
458 for( ; i<(*lhs).size(); ++i ) {
505template<
typename VT1
508 ,
DisableIf_t< ( IsZero_v<VT1> || IsZero_v<VT2> ) >* =
nullptr >
509inline const SVecSVecKronExpr<VT1,VT2,TF>
510 svecsveckron(
const SparseVector<VT1,TF>& lhs,
const SparseVector<VT2,TF>& rhs )
514 return SVecSVecKronExpr<VT1,VT2,TF>( *lhs, *rhs );
533template<
typename VT1
536 , EnableIf_t< IsZero_v<VT1> || IsZero_v<VT2> >* =
nullptr >
538 svecsveckron(
const SparseVector<VT1,TF>& lhs,
const SparseVector<VT2,TF>& rhs )
542 using ReturnType =
const KronTrait_t< ResultType_t<VT1>, ResultType_t<VT2> >;
547 return ReturnType( (*lhs).size()*(*rhs).size() );
574template<
typename VT1
582 return svecsveckron( *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 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 isDefault shim.
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-sparse vector Kronecker products.
Definition: SVecSVecKronExpr.h:91
CompositeType_t< VT2 > CT2
Composite type of the right-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:99
const ResultType CompositeType
Data type for composite expression templates.
Definition: SVecSVecKronExpr.h:131
ResultType_t< VT2 > RT2
Result type of the right-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:95
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecSVecKronExpr.h:228
CompositeType_t< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:98
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecSVecKronExpr.h:240
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecSVecKronExpr.h:128
LeftOperand lhs_
Left-hand side sparse vector of the Kronecker product expression.
Definition: SVecSVecKronExpr.h:247
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecSVecKronExpr.h:196
decltype(std::declval< RN1 >() *std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: SVecSVecKronExpr.h:112
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecSVecKronExpr.h:206
If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:137
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: SVecSVecKronExpr.h:142
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: SVecSVecKronExpr.h:109
ReturnType_t< VT2 > RN2
Return type of the right-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:97
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecSVecKronExpr.h:160
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: SVecSVecKronExpr.h:125
KronTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecSVecKronExpr.h:123
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecSVecKronExpr.h:173
If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:134
RightOperand rhs_
Right-hand side sparse vector of the Kronecker product expression.
Definition: SVecSVecKronExpr.h:248
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: SVecSVecKronExpr.h:216
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecSVecKronExpr.h:186
SVecSVecKronExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecSVecKronExpr class.
Definition: SVecSVecKronExpr.h:148
ResultType_t< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:94
ReturnType_t< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecSVecKronExpr.h:96
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecSVecKronExpr.h:124
Base class for sparse vectors.
Definition: SparseVector.h:72
Constraint on the data type.
Constraint on the data type.
Header file for the Computation 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_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
typename EnableIf<!Condition, T >::Type DisableIf_t
Auxiliary type for the EnableIf class template.
Definition: EnableIf.h:175
#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 all forward declarations for expression class templates.
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.