35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECDVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECDVECMULTEXPR_H_
90 template<
typename VT1
93 class SVecDVecMultExpr :
public SparseVector< SVecDVecMultExpr<VT1,VT2,TF>, TF >
94 ,
private VecVecMultExpr
131 template<
typename VT >
134 enum :
bool { value = useAssign };
161 enum :
bool { smpAssignable =
false };
325 inline ReturnType
at(
size_t index )
const {
326 if( index >=
lhs_.size() ) {
329 return (*
this)[index];
358 inline size_t size() const noexcept {
369 return lhs_.nonZeros();
435 template<
typename T >
436 inline bool canAlias(
const T* alias )
const noexcept {
437 return (
lhs_.canAlias( alias ) ) || (
rhs_.canAlias( alias ) );
447 template<
typename T >
448 inline bool isAliased(
const T* alias )
const noexcept {
449 return (
lhs_.isAliased( alias ) ) || (
rhs_.isAliased( alias ) );
473 template<
typename VT >
483 CT1 x(
serial( rhs.lhs_ ) );
484 CT2 y(
serial( rhs.rhs_ ) );
490 for( ConstIterator element=x.begin(); element!=x.end(); ++element )
491 (~lhs)[element->index()] = element->value() * y[element->index()];
510 template<
typename VT >
520 CT1 x(
serial( rhs.lhs_ ) );
521 CT2 y(
serial( rhs.rhs_ ) );
527 for( ConstIterator element=x.begin(); element!=x.end(); ++element )
528 (~lhs).append( element->index(), element->value() * y[element->index()] );
547 template<
typename VT >
548 friend inline EnableIf_< UseAssign<VT> >
555 typedef ConstIterator_< RemoveReference_<CT1> >
ConstIterator;
557 CT1 x(
serial( rhs.lhs_ ) );
558 CT2 y(
serial( rhs.rhs_ ) );
564 for( ConstIterator element=x.begin(); element!=x.end(); ++element )
565 (~lhs)[element->index()] += element->value() * y[element->index()];
588 template<
typename VT >
589 friend inline EnableIf_< UseAssign<VT> >
596 typedef ConstIterator_< RemoveReference_<CT1> >
ConstIterator;
598 CT1 x(
serial( rhs.lhs_ ) );
599 CT2 y(
serial( rhs.rhs_ ) );
605 for( ConstIterator element=x.begin(); element!=x.end(); ++element )
606 (~lhs)[element->index()] -= element->value() * y[element->index()];
629 template<
typename VT >
630 friend inline EnableIf_< UseAssign<VT> >
637 typedef ConstIterator_< RemoveReference_<CT1> >
ConstIterator;
639 CT1 x(
serial( rhs.lhs_ ) );
640 CT2 y(
serial( rhs.rhs_ ) );
646 const ConstIterator
end( x.end() );
647 ConstIterator
begin( x.begin() );
652 for( ; i<index; ++i )
658 for( ; i<rhs.size(); ++i )
716 template<
typename T1
719 inline const SVecDVecMultExpr<T1,T2,TF>
724 if( (~lhs).
size() != (~rhs).
size() ) {
743 template<
typename VT1,
typename VT2,
bool TF >
745 :
public Max< Size<VT1>, Size<VT2> >
761 template<
typename VT1,
typename VT2,
bool TF,
bool AF >
766 using Type = MultExprTrait_< SubvectorExprTrait_<const VT1,AF>
767 , SubvectorExprTrait_<const VT2,AF> >;
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exception.This macro encapsulates the default way o...
Definition: Exception.h:235
Pointer difference type of the Blaze library.
IfTrue_< useAssign, const ResultType, const SVecDVecMultExpr & > CompositeType
Data type for composite expression templates.
Definition: SVecDVecMultExpr.h:150
Header file for auxiliary alias declarations.
Header file for the Max class template.
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: SVecDVecMultExpr.h:172
ValueType value_type
Type of the underlying pointers.
Definition: SVecDVecMultExpr.h:185
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:70
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:7800
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecDVecMultExpr.h:348
Header file for basic type definitions.
Header file for the SparseVector base class.
MultTrait_< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecDVecMultExpr.h:142
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: SVecDVecMultExpr.h:403
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecDVecMultExpr.h:312
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecDVecMultExpr.h:325
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecDVecMultExpr.h:368
Header file for the serial shim.
PointerType pointer
Pointer return type.
Definition: SVecDVecMultExpr.h:186
ElementType_< ResultType > ElementType
Resulting element type.
Definition: SVecDVecMultExpr.h:144
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecDVecMultExpr.h:257
CompositeType_< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:104
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecDVecMultExpr.h:236
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:533
RightOperand rhs_
Right-hand side dense vector of the multiplication expression.
Definition: SVecDVecMultExpr.h:456
ReferenceType reference
Reference return type.
Definition: SVecDVecMultExpr.h:187
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecMultExpr.h:216
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:723
typename MultTrait< T1, T2 >::Type MultTrait_
Auxiliary alias declaration for the MultTrait class template.The MultTrait_ alias declaration provide...
Definition: MultTrait.h:245
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:323
Constraint on the data type.
typename IfTrue< Condition, T1, T2 >::Type IfTrue_
Auxiliary alias declaration for the IfTrue class template.The IfTrue_ alias declaration provides a co...
Definition: If.h:109
typename T::ReturnType ReturnType_
Alias declaration for nested ReturnType type definitions.The ReturnType_ alias declaration provides a...
Definition: Aliases.h:343
ConstIterator(IteratorType it, RightOperand vec)
Constructor for the ConstIterator class.
Definition: SVecDVecMultExpr.h:194
typename MultExprTrait< T1, T2 >::Type MultExprTrait_
Auxiliary alias declaration for the MultExprTrait class template.The MultExprTrait_ alias declaration...
Definition: MultExprTrait.h:344
Header file for the MultExprTrait class template.
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:72
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecDVecMultExpr.h:143
ValueType & ReferenceType
Reference return type.
Definition: SVecDVecMultExpr.h:180
Header file for the ValueIndexPair class.
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: SVecDVecMultExpr.h:391
Header file for the IsTemporary type trait class.
Header file for the multiplication trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
If_< IsExpression< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:156
Header file for the If class template.
DifferenceType difference_type
Difference between two iterators.
Definition: SVecDVecMultExpr.h:188
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SVecDVecMultExpr.h:181
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2647
#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
IteratorType it_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:286
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
ConstIterator_< RemoveReference_< LeftOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: SVecDVecMultExpr.h:175
#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
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecDVecMultExpr.h:177
Constraint on the data type.
ResultType_< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:100
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecDVecMultExpr.h:279
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecDVecMultExpr.h:268
Constraint on the data type.
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: SVecDVecMultExpr.h:424
Header file for the exception macros of the math module.
SVecDVecMultExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecDVecMultExpr class.
Definition: SVecDVecMultExpr.h:298
Header file for the VecVecMultExpr base class.
CompositeType_< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:103
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: SVecDVecMultExpr.h:379
Constraint on the data type.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Iterator over the elements of the sparse vector-dense vector multiplication expression.
Definition: SVecDVecMultExpr.h:167
ConstIterator & operator++()
Pre-increment operator.
Definition: SVecDVecMultExpr.h:205
Header file for the EnableIf class template.
ReturnType_< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:102
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecDVecMultExpr.h:147
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecDVecMultExpr.h:436
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecDVecMultExpr.h:358
LeftOperand lhs_
Left-hand side sparse vector of the multiplication expression.
Definition: SVecDVecMultExpr.h:455
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecDVecMultExpr.h:448
Header file for run time assertion macros.
typename If< T1, T2, T3 >::Type If_
Auxiliary alias declaration for the If class template.The If_ alias declaration provides a convenient...
Definition: If.h:160
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecDVecMultExpr.h:414
Header file for the reset shim.
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecDVecMultExpr.h:338
size_t index() const
Access to the current index of the sparse element.
Definition: SVecDVecMultExpr.h:246
#define BLAZE_CONSTRAINT_MUST_NOT_REQUIRE_EVALUATION(T)
Constraint on the data type.In case the given data type T requires an intermediate evaluation within ...
Definition: RequiresEvaluation.h:81
Header file for the RemoveReference type trait.
SVecDVecMultExpr< VT1, VT2, TF > This
Type of this SVecDVecMultExpr instance.
Definition: SVecDVecMultExpr.h:141
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:223
typename T::ConstIterator ConstIterator_
Alias declaration for nested ConstIterator type definitions.The ConstIterator_ alias declaration prov...
Definition: Aliases.h:103
#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
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:70
Constraint on the data type.
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECMULTEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecMultExpr.h:109
ReturnType_< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:101
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:110
#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
ElementType ValueType
Type of the underlying pointers.
Definition: SVecDVecMultExpr.h:178
ResultType_< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:99
Header file for the SubvectorExprTrait class template.
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecMultExpr.h:226
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:403
ValueType * PointerType
Pointer return type.
Definition: SVecDVecMultExpr.h:179
RightOperand vec_
Right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:287
IteratorCategory iterator_category
The iterator category.
Definition: SVecDVecMultExpr.h:184
If_< IsExpression< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:153
MultExprTrait_< RN1, RN2 > ExprReturnType
Expression return type for the subscript operator.
Definition: SVecDVecMultExpr.h:117
Header file for the Size type trait.
#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, 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.
Expression object for sparse vector-dense vector multiplications.The SVecDVecMultExpr class represent...
Definition: Forward.h:113