35 #ifndef _BLAZE_MATH_EXPRESSIONS_DMATSVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_DMATSVECMULTEXPR_H_
117 template<
typename VT2 >
120 enum { value = useAssign };
151 enum { vectorizable = 0 };
154 enum { smpAssignable = !useAssign };
186 ConstIterator element( x.begin() );
189 if( element != x.end() ) {
190 res =
mat_( index, element->index() ) * element->value();
192 for( ; element!=x.end(); ++element )
193 res +=
mat_( index, element->index() ) * element->value();
239 template<
typename T >
241 return mat_.isAliased( alias ) ||
vec_.isAliased( alias );
251 template<
typename T >
253 return mat_.isAliased( alias ) ||
vec_.isAliased( alias );
263 return mat_.isAligned();
299 template<
typename VT1 >
311 if( x.nonZeros() == 0UL ) {
347 template<
typename VT1 >
381 template<
typename VT1 >
382 friend inline typename EnableIf< UseAssign<VT1> >::Type
393 if( x.nonZeros() == 0UL )
return;
430 template<
typename VT1 >
431 friend inline typename EnableIf< UseAssign<VT1> >::Type
442 if( x.nonZeros() == 0UL )
return;
479 template<
typename VT1 >
480 friend inline typename EnableIf< UseAssign<VT1> >::Type
553 template<
typename T1
555 inline const typename DisableIf< IsMatMatMultExpr<T1>, DMatSVecMultExpr<T1,T2> >::Type
560 if( (~mat).
columns() != (~vec).size() )
561 throw std::invalid_argument(
"Matrix and vector sizes do not match" );
589 template<
typename T1
592 inline const typename EnableIf< IsMatMatMultExpr<T1>, MultExprTrait<T1,T2> >::Type::Type
597 return (~mat).leftOperand() * ( (~mat).rightOperand() * vec );
612 template<
typename MT,
typename VT,
bool AF >
613 struct SubvectorExprTrait< DMatSVecMultExpr<MT,VT>, AF >
617 typedef typename MultExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type, VT >::Type Type;
bool isAligned() const
Returns whether the operands of the expression are properly aligned in memory.
Definition: DMatSVecMultExpr.h:262
Compile time check whether the given type is a computational expression template.This type trait clas...
Definition: IsComputation.h:89
void reset(DynamicMatrix< Type, SO > &m)
Resetting the given dense matrix.
Definition: DynamicMatrix.h:4579
const DMatDMatMultExpr< T1, T2 > operator*(const DenseMatrix< T1, false > &lhs, const DenseMatrix< T2, false > &rhs)
Multiplication operator for the multiplication of two row-major dense matrices ( ).
Definition: DMatDMatMultExpr.h:4075
DMatSVecMultExpr< MT, VT > This
Type of this DMatSVecMultExpr instance.
Definition: DMatSVecMultExpr.h:127
LeftOperand leftOperand() const
Returns the left-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:218
void smpSubAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:151
#define BLAZE_CONSTRAINT_MUST_BE_COLUMN_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a column dense or sparse vector type...
Definition: TransposeFlag.h:159
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:197
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a dense, N-dimensional matrix type...
Definition: DenseMatrix.h:79
void smpMultAssign(DenseVector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs)
Default implementation of the SMP multiplication assignment of a vector to a dense vector...
Definition: DenseVector.h:178
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2384
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:249
MultTrait< MRT, VRT >::Type ResultType
Result type for expression template evaluations.
Definition: DMatSVecMultExpr.h:128
Header file for the DenseVector base class.
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
LeftOperand mat_
Left-hand side dense matrix of the multiplication expression.
Definition: DMatSVecMultExpr.h:279
VT::ResultType VRT
Result type of the right-hand side sparse vector expression.
Definition: DMatSVecMultExpr.h:99
Base class for dense matrices.The DenseMatrix class is a base class for all dense matrix classes...
Definition: DenseMatrix.h:70
Constraint on the data type.
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: DMatSVecMultExpr.h:129
Constraint on the data type.
Header file for the MultExprTrait class template.
void smpAddAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:121
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:90
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:251
MCT LT
Type for the assignment of the left-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:143
Expression object for dense matrix-sparse vector multiplications.The DMatSVecMultExpr class represent...
Definition: DMatSVecMultExpr.h:92
Compile time type selection.The SelectType class template selects one of the two given types T1 and T...
Definition: SelectType.h:59
Header file for the DisableIf class template.
Header file for the multiplication trait.
Header file for the dense vector SMP implementation.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2388
Header file for the IsMatMatMultExpr type trait class.
void assign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the assignment of a matrix to a matrix.
Definition: Matrix.h:179
RightOperand vec_
Right-hand side sparse vector of the multiplication expression.
Definition: DMatSVecMultExpr.h:280
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
#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:79
SelectType< IsExpression< VT >::value, const VT, const VT & >::Type RightOperand
Composite type of the right-hand side dense vector expression.
Definition: DMatSVecMultExpr.h:140
Constraint on the data type.
Base class for all matrix/vector multiplication expression templates.The MatVecMultExpr class serves ...
Definition: MatVecMultExpr.h:66
RightOperand rightOperand() const
Returns the right-hand side sparse vector operand.
Definition: DMatSVecMultExpr.h:228
#define BLAZE_CONSTRAINT_MUST_BE_REFERENCE_TYPE(T)
Constraint on the data type.In case the given data type T is not a reference type, a compilation error is created.
Definition: Reference.h:78
Constraints on the storage order of matrix types.
Constraint on the data type.
void multAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the multiplication assignment of a matrix to a matrix.
Definition: Matrix.h:269
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Header file for the EnableIf class template.
void smpAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:91
MT::CompositeType MCT
Composite type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:100
Header file for the SubmatrixExprTrait class template.
#define BLAZE_CONSTRAINT_MUST_BE_ROW_MAJOR_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a row-major dense or sparse matrix t...
Definition: StorageOrder.h:81
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
const size_t SMP_DMATSVECMULT_THRESHOLD
SMP row-major dense matrix/sparse vector multiplication threshold.This threshold represents the syste...
Definition: Thresholds.h:191
size_t size() const
Returns the current size/dimension of the vector.
Definition: DMatSVecMultExpr.h:208
Header file for run time assertion macros.
Base template for the MultTrait class.
Definition: MultTrait.h:141
void addAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the addition assignment of a matrix to a matrix.
Definition: Matrix.h:209
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:137
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
ResultType::ElementType ElementType
Resulting element type.
Definition: DMatSVecMultExpr.h:130
Header file for the reset shim.
void subAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the subtraction assignment of a matrix to matrix.
Definition: Matrix.h:239
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: DMatSVecMultExpr.h:240
Header file for the RemoveReference type trait.
#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:79
const ElementType ReturnType
Return type for expression template evaluations.
Definition: DMatSVecMultExpr.h:131
Header file for the IsComputation type trait class.
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: DMatSVecMultExpr.h:252
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:59
Header file for the sparse vector SMP implementation.
SelectType< IsComputation< VT >::value, const VRT, VCT >::Type RT
Type for the assignment of the right-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:146
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:105
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:157
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2379
size_t columns(const Matrix< MT, SO > &m)
Returns the current number of columns of the matrix.
Definition: Matrix.h:154
Header file for basic type definitions.
Header file for the SubvectorExprTrait class template.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DMatSVecMultExpr.h:177
Header file for the MatVecMultExpr base class.
SelectType< useAssign, const ResultType, const DMatSVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: DMatSVecMultExpr.h:134
DMatSVecMultExpr(const MT &mat, const VT &vec)
Constructor for the DMatSVecMultExpr class.
Definition: DMatSVecMultExpr.h:163
MT::ResultType MRT
Result type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:98
VT::CompositeType VCT
Composite type of the right-hand side sparse vector expression.
Definition: DMatSVecMultExpr.h:101
bool canSMPAssign() const
Returns whether the expression can be used in SMP assignments.
Definition: DMatSVecMultExpr.h:272
Header file for the thresholds for matrix/vector and matrix/matrix multiplications.
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.In case of an invalid run time expression, the program execution is terminated. The BLAZE_INTERNAL_ASSERT macro can be disabled by setting the BLAZE_USER_ASSERTION flag to zero or by defining NDEBUG during the compilation.
Definition: Assert.h:101
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.