35 #ifndef _BLAZE_MATH_EXPRESSIONS_DVECSVECKRONEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_DVECSVECKRONEXPR_H_ 88 template<
typename VT1
92 :
public VecVecKronExpr< SparseVector< DVecSVecKronExpr<VT1,VT2,TF>, TF > >
114 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_.size() *
rhs_.nonZeros();
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 yend( y.end() );
284 for(
size_t i=0UL; i<x.size(); ++i ) {
286 for(
auto yelem=y.begin(); yelem!=yend; ++yelem )
287 (~lhs)[i*N+yelem->index()] = x[i] * yelem->value();
306 template<
typename VT >
313 if( rhs.
size() == 0UL ) {
320 const size_t N( y.size() );
321 const auto yend( y.end() );
323 for(
size_t i=0UL; i<x.size(); ++i ) {
325 for(
auto yelem=y.begin(); yelem!=yend; ++yelem )
326 (~lhs).append( i*N+yelem->index(), x[i] * yelem->value(), true );
345 template<
typename VT >
346 friend inline void addAssign( DenseVector<VT,TF>& lhs,
const DVecSVecKronExpr& rhs )
352 if( rhs.size() == 0UL ) {
359 const size_t N( y.size() );
360 const auto yend( y.end() );
362 for(
size_t i=0UL; i<x.size(); ++i ) {
364 for(
auto yelem=y.begin(); yelem!=yend; ++yelem )
365 (~lhs)[i*N+yelem->index()] += x[i] * yelem->value();
389 template<
typename VT >
390 friend inline void subAssign( DenseVector<VT,TF>& lhs,
const DVecSVecKronExpr& rhs )
396 if( rhs.size() == 0UL ) {
403 const size_t N( y.size() );
404 const auto yend( y.end() );
406 for(
size_t i=0UL; i<x.size(); ++i ) {
408 for(
auto yelem=y.begin(); yelem!=yend; ++yelem )
409 (~lhs)[i*N+yelem->index()] -= x[i] * yelem->value();
433 template<
typename VT >
434 friend inline void multAssign( DenseVector<VT,TF>& lhs,
const DVecSVecKronExpr& rhs )
440 if( rhs.size() == 0UL ) {
447 const size_t N( y.size() );
448 const auto yend( y.end() );
450 for(
size_t i=0UL; i<x.size(); ++i ) {
455 for(
auto yelem=y.begin(); yelem!=yend; ++yelem, ++j ) {
456 for( ; j<yelem->index(); ++j )
457 reset( (~lhs)[i*N+j] );
458 (~lhs)[i*N+yelem->index()] *= x[i] * yelem->value();
462 reset( (~lhs)[i*N+j] );
465 for(
size_t j=0UL; j<N; ++j )
466 reset( (~lhs)[i*N+j] );
512 template<
typename VT1
515 , DisableIf_t< IsZero_v<VT2> >* =
nullptr >
516 inline const DVecSVecKronExpr<VT1,VT2,TF>
517 dvecsveckron(
const DenseVector<VT1,TF>& lhs,
const SparseVector<VT2,TF>& rhs )
521 return DVecSVecKronExpr<VT1,VT2,TF>( ~lhs, ~rhs );
540 template<
typename VT1
543 , EnableIf_t< IsZero_v<VT2> >* =
nullptr >
544 inline decltype(
auto)
545 dvecsveckron( const DenseVector<VT1,TF>& lhs, const SparseVector<VT2,TF>& rhs )
549 using ReturnType =
const KronTrait_t< ResultType_t<VT1>, ResultType_t<VT2> >;
554 return ReturnType( (~lhs).
size()*(~rhs).
size() );
582 template<
typename VT1
585 inline decltype(
auto)
590 return dvecsveckron( ~lhs, ~rhs );
Header file for auxiliary alias declarations.
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: DVecSVecKronExpr.h:177
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
typename T::ResultType ResultType_t
Alias declaration for nested ResultType type definitions.The ResultType_t alias declaration provides ...
Definition: Aliases.h:390
Header file for the serial shim.
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: DVecSVecKronExpr.h:129
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:595
TransposeType_t< VT1 > TT1
Transpose type of the left-hand side dense vector expression.
Definition: DVecSVecKronExpr.h:103
Constraint on the data type.
Header file for the DenseVector base class.
CompositeType_t< VT2 > CT2
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecKronExpr.h:102
Header file for the MAYBE_UNUSED function template.
Constraint on the data type.
ResultType_t< VT1 > RT1
Result type of the left-hand side dense vector expression.
Definition: DVecSVecKronExpr.h:97
decltype(std::declval< RN1 >()+std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: DVecSVecKronExpr.h:117
Header file for the Computation base class.
Header file for the reset shim.
LeftOperand lhs_
Left-hand side dense vector of the Kronecker product expression.
Definition: DVecSVecKronExpr.h:251
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.The ReturnType_t alias declaration provides ...
Definition: Aliases.h:410
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: DVecSVecKronExpr.h:114
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
DVecSVecKronExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the DVecSVecKronExpr class.
Definition: DVecSVecKronExpr.h:152
ResultType_t< VT2 > RT2
Result type of the right-hand side sparse vector expression.
Definition: DVecSVecKronExpr.h:98
Header file for the DisableIf class template.
Header file for the IsTemporary type trait class.
ReturnType_t< VT1 > RN1
Return type of the left-hand side dense vector expression.
Definition: DVecSVecKronExpr.h:99
Base class for all vector/vector Kronecker expression templates.The VecVecKronExpr class serves as a ...
Definition: VecVecKronExpr.h:67
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the If class template.
#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.
Header file for the Kron product trait.
Constraint on the data type.
Header file for the exception macros of the math module.
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: DVecSVecKronExpr.h:126
Constraint on the data type.
Expression object for dense vector-sparse vector Kronecker product.The DVecSVecKronExpr class represe...
Definition: DVecSVecKronExpr.h:91
Header file for the EnableIf class template.
KronTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: DVecSVecKronExpr.h:124
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
Header file for the Unique class template.
If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecKronExpr.h:135
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
const ResultType CompositeType
Data type for composite expression templates.
Definition: DVecSVecKronExpr.h:132
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: DVecSVecKronExpr.h:143
Header file for the isDefault shim.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: DVecSVecKronExpr.h:200
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
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: DVecSVecKronExpr.h:125
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: DVecSVecKronExpr.h:190
If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecKronExpr.h:138
TransposeType_t< VT2 > TT2
Transpose type of the right-hand side sparse vector expression.
Definition: DVecSVecKronExpr.h:104
#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
ReturnType_t< VT2 > RN2
Return type of the right-hand side sparse vector expression.
Definition: DVecSVecKronExpr.h:100
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: DVecSVecKronExpr.h:220
#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 all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:66
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:146
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: DVecSVecKronExpr.h:232
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: DVecSVecKronExpr.h:244
RightOperand rhs_
Right-hand side sparse vector of the Kronecker product expression.
Definition: DVecSVecKronExpr.h:252
bool isDefault(const DiagonalProxy< MT > &proxy)
Returns whether the represented element is in default state.
Definition: DiagonalProxy.h:635
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DVecSVecKronExpr.h:164
LeftOperand leftOperand() const noexcept
Returns the left-hand side dense vector operand.
Definition: DVecSVecKronExpr.h:210
CompositeType_t< VT1 > CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecKronExpr.h:101
#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.