35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECDVECKRONEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_SVECDVECKRONEXPR_H_ 86 template<
typename VT1
89 class SVecDVecKronExpr
90 :
public VecVecKronExpr< SparseVector< SVecDVecKronExpr<VT1,VT2,TF>, TF > >
110 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_.size();
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() );
280 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
281 for(
size_t j=0UL; j<N; ++j ) {
282 (~lhs)[xelem->index()*N+j] = xelem->value() * y[j];
301 template<
typename VT >
308 if( rhs.size() == 0UL ) {
315 const size_t N( y.size() );
316 const auto xend( x.end() );
318 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
319 for(
size_t j=0UL; j<N; ++j ) {
320 (~lhs).append( xelem->index()*N+j, xelem->value() * y[j], true );
339 template<
typename VT >
340 friend inline void addAssign( DenseVector<VT,TF>& lhs,
const SVecDVecKronExpr& rhs )
346 if( rhs.size() == 0UL ) {
353 const size_t N( y.size() );
354 const auto xend( x.end() );
356 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
357 for(
size_t j=0UL; j<N; ++j ) {
358 (~lhs)[xelem->index()*N+j] += xelem->value() * y[j];
382 template<
typename VT >
383 friend inline void subAssign( DenseVector<VT,TF>& lhs,
const SVecDVecKronExpr& rhs )
389 if( rhs.size() == 0UL ) {
396 const size_t N( y.size() );
397 const auto xend( x.end() );
399 for(
auto xelem=x.begin(); xelem!=xend; ++xelem ) {
400 for(
size_t j=0UL; j<N; ++j ) {
401 (~lhs)[xelem->index()*N+j] -= xelem->value() * y[j];
425 template<
typename VT >
426 friend inline void multAssign( DenseVector<VT,TF>& lhs,
const SVecDVecKronExpr& rhs )
432 if( rhs.size() == 0UL ) {
439 const size_t N( y.size() );
440 const auto xend( x.end() );
443 for(
auto xelem=x.begin(); xelem!=xend; ++xelem, ++i )
445 for( ; i<xelem->index(); ++i ) {
446 for(
size_t j=0UL; j<N; ++j )
447 reset( (~lhs)[i*N+j] );
450 for(
size_t j=0UL; j<N; ++j ) {
451 (~lhs)[xelem->index()*N+j] *= xelem->value() * y[j];
455 for( ; i<x.size(); ++i ) {
456 for(
size_t j=0UL; j<N; ++j )
457 reset( (~lhs)[i*N+j] );
502 template<
typename VT1
505 , DisableIf_t< IsZero_v<VT1> >* =
nullptr >
506 inline const SVecDVecKronExpr<VT1,VT2,TF>
507 svecdveckron(
const SparseVector<VT1,TF>& lhs,
const DenseVector<VT2,TF>& rhs )
511 return SVecDVecKronExpr<VT1,VT2,TF>( ~lhs, ~rhs );
530 template<
typename VT1
533 , EnableIf_t< IsZero_v<VT1> >* =
nullptr >
534 inline decltype(
auto)
535 svecdveckron( const SparseVector<VT1,TF>& lhs, const DenseVector<VT2,TF>& rhs )
539 using ReturnType =
const KronTrait_t< ResultType_t<VT1>, ResultType_t<VT2> >;
544 return ReturnType( (~lhs).
size()*(~rhs).
size() );
572 template<
typename VT1
575 inline decltype(
auto)
580 return svecdveckron( ~lhs, ~rhs );
Header file for auxiliary alias declarations.
Header file for the alignment flag values.
Header file for basic type definitions.
Header file for the SparseVector base class.
typename If< Condition, T1, T2 >::Type If_t
Auxiliary alias template for the If class template.The If_t alias template provides a convenient shor...
Definition: If.h:109
KronTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecDVecKronExpr.h:120
ReturnType_t< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:98
typename T::ResultType ResultType_t
Alias declaration for nested ResultType type definitions.The ResultType_t alias declaration provides ...
Definition: Aliases.h:390
CompositeType_t< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:100
Header file for the serial shim.
const ResultType CompositeType
Data type for composite expression templates.
Definition: SVecDVecKronExpr.h:128
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:595
Constraint on the data type.
Header file for the DenseVector base class.
Constraint on the data type.
Header file for the Computation base class.
Header file for the reset shim.
LeftOperand lhs_
Left-hand side sparse vector of the Kronecker product expression.
Definition: SVecDVecKronExpr.h:247
CompositeType_t< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:99
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.The ReturnType_t alias declaration provides ...
Definition: Aliases.h:410
decltype(auto) kron(const DenseMatrix< MT1, SO1 > &lhs, const DenseMatrix< MT2, SO2 > &rhs)
Computes the Kronecker product of two dense matrices ( ).
Definition: DMatDMatKronExpr.h:954
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.The ElementType_t alias declaration provide...
Definition: Aliases.h:170
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: SVecDVecKronExpr.h:216
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: SVecDVecKronExpr.h:110
SVecDVecKronExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecDVecKronExpr class.
Definition: SVecDVecKronExpr.h:148
Header file for the DisableIf class template.
Header file for the IsTemporary type trait class.
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecDVecKronExpr.h:186
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the If class template.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecDVecKronExpr.h:196
#define BLAZE_CONSTRAINT_MUST_BE_ZERO_TYPE(T)
Constraint on the data type.In case the given data type T is not a zero vector or matrix type,...
Definition: Zero.h:61
typename KronTrait< T1, T2 >::Type KronTrait_t
Auxiliary alias declaration for the KronTrait class template.The KronTrait_t alias declaration provid...
Definition: KronTrait.h:163
#define BLAZE_THROW_OUT_OF_RANGE(MESSAGE)
Macro for the emission of a std::out_of_range exception.This macro encapsulates the default way of Bl...
Definition: Exception.h:331
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:76
Header file for the VecVecKronExpr base class.
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional vector type,...
Definition: SparseVector.h:61
Constraint on the data type.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecDVecKronExpr.h:160
Header file for the Kron product trait.
ReturnType_t< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:97
If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:134
Constraint on the data type.
Header file for the exception macros of the math module.
Constraint on the data type.
Header file for the EnableIf class template.
ResultType_t< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:95
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecDVecKronExpr.h:206
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecDVecKronExpr.h:228
typename T::TransposeType TransposeType_t
Alias declaration for nested TransposeType type definitions.The TransposeType_t alias declaration pro...
Definition: Aliases.h:470
Header file for run time assertion macros.
typename T::CompositeType CompositeType_t
Alias declaration for nested CompositeType type definitions.The CompositeType_t alias declaration pro...
Definition: Aliases.h:90
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: SVecDVecKronExpr.h:139
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecDVecKronExpr.h:125
Header file for the Unique class template.
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecDVecKronExpr.h:240
Expression object for sparse vector-dense vector Kronecker products.The SVecDVecKronExpr class repres...
Definition: Forward.h:149
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecDVecKronExpr.h:121
Header file for the IsZero type trait.
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:94
constexpr size_t size(const Matrix< MT, SO > &matrix) noexcept
Returns the total number of elements of the matrix.
Definition: Matrix.h:530
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:808
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: SVecDVecKronExpr.h:122
If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecKronExpr.h:131
ResultType_t< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: SVecDVecKronExpr.h:96
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a dense, N-dimensional vector type,...
Definition: DenseVector.h:61
decltype(std::declval< RN1 >() *std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: SVecDVecKronExpr.h:113
RightOperand rhs_
Right-hand side dense vector of the Kronecker product expression.
Definition: SVecDVecKronExpr.h:248
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecDVecKronExpr.h:173
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECKRONEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecKronExpr.h:102
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:146
#define BLAZE_CONSTRAINT_MUST_NOT_BE_ZERO_TYPE(T)
Constraint on the data type.In case the given data type T is a zero vector or matrix type,...
Definition: Zero.h:81
#define BLAZE_CONSTRAINT_MUST_BE_VECTOR_WITH_TRANSPOSE_FLAG(T, TF)
Constraint on the data type.In case the given data type T is not a dense or sparse vector type and in...
Definition: TransposeFlag.h:63
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.In case of an invalid run time expression,...
Definition: Assert.h:101
Header file for the IsExpression type trait class.
Header file for the function trace functionality.