35 #ifndef _BLAZE_MATH_EXPRESSIONS_DVECSVECMULTEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_DVECSVECMULTEXPR_H_ 88 template<
typename VT1
92 :
public VecVecMultExpr< SparseVector< DVecSVecMultExpr<VT1,VT2,TF>, TF > >
131 template<
typename VT >
134 enum :
bool { value = useAssign };
161 enum :
bool { smpAssignable =
false };
220 return Element( vec_[it_->index()] * it_->value(), it_->index() );
240 return vec_[it_->index()] * it_->value();
261 return it_ == rhs.
it_;
272 return it_ != rhs.
it_;
283 return it_ - rhs.
it_;
329 if( index >=
lhs_.size() ) {
332 return (*
this)[index];
361 inline size_t size() const noexcept {
372 return rhs_.nonZeros();
438 template<
typename T >
439 inline bool canAlias(
const T* alias )
const noexcept {
440 return (
lhs_.canAlias( alias ) ||
rhs_.canAlias( alias ) );
450 template<
typename T >
451 inline bool isAliased(
const T* alias )
const noexcept {
452 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
476 template<
typename VT >
493 for( ConstIterator element=y.begin(); element!=y.end(); ++element )
494 (~lhs)[element->index()] = x[element->index()] * element->value();
513 template<
typename VT >
530 for( ConstIterator element=y.begin(); element!=y.end(); ++element )
531 (~lhs).append( element->index(), x[element->index()] * element->value() );
550 template<
typename VT >
567 for( ConstIterator element=y.begin(); element!=y.end(); ++element )
568 (~lhs)[element->index()] += x[element->index()] * element->value();
591 template<
typename VT >
608 for( ConstIterator element=y.begin(); element!=y.end(); ++element )
609 (~lhs)[element->index()] -= x[element->index()] * element->value();
632 template<
typename VT >
649 const ConstIterator
end( y.end() );
650 ConstIterator
begin( y.begin() );
655 for( ; i<index; ++i )
661 for( ; i<(~lhs).
size(); ++i )
719 template<
typename VT1
722 inline decltype(
auto)
727 if( (~lhs).
size() != (~rhs).
size() ) {
747 template<
typename VT1,
typename VT2,
bool TF >
748 struct Size< DVecSVecMultExpr<VT1,VT2,TF> >
749 :
public Maximum< Size<VT1>, Size<VT2> >
#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.
LeftOperand vec_
Left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:289
Header file for auxiliary alias declarations.
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: DVecSVecMultExpr.h:219
ConstIterator(LeftOperand vec, IteratorType it)
Constructor for the ConstIterator class.
Definition: DVecSVecMultExpr.h:197
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:70
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: DVecSVecMultExpr.h:439
Header file for basic type definitions.
Header file for the SparseVector base class.
Header file for the serial shim.
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: DVecSVecMultExpr.h:451
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: DVecSVecMultExpr.h:229
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: DVecSVecMultExpr.h:143
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:560
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: DVecSVecMultExpr.h:341
Compile time value evaluation.The Maximum alias declaration selects the larger of the two given templ...
Definition: Maximum.h:73
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: DVecSVecMultExpr.h:394
typename MultTrait< T1, T2 >::Type MultTrait_
Auxiliary alias declaration for the MultTrait class template.The MultTrait_ alias declaration provide...
Definition: MultTrait.h:250
Expression object for dense vector-sparse vector multiplications.The DVecSVecMultExpr class represent...
Definition: DVecSVecMultExpr.h:91
Header file for the Computation base class.
ElementType_< ResultType > ElementType
Resulting element type.
Definition: DVecSVecMultExpr.h:144
Header file for the RequiresEvaluation type trait.
ReturnType_< VT2 > RN2
Return type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:100
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:343
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: DVecSVecMultExpr.h:361
RightOperand rhs_
Right-hand side sparse vector of the multiplication expression.
Definition: DVecSVecMultExpr.h:459
LeftOperand leftOperand() const noexcept
Returns the left-hand side dense vector operand.
Definition: DVecSVecMultExpr.h:417
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: DVecSVecMultExpr.h:282
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:363
Header file for the Maximum class template.
typename MultExprTrait< T1, T2 >::Type MultExprTrait_
Auxiliary alias declaration for the MultExprTrait class template.The MultExprTrait_ alias declaration...
Definition: MultExprTrait.h:112
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
MultTrait_< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: DVecSVecMultExpr.h:142
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: DVecSVecMultExpr.h:382
Header file for the ValueIndexPair class.
ConstIterator & operator++()
Pre-increment operator.
Definition: DVecSVecMultExpr.h:208
CompositeType_< VT2 > CT2
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:102
Header file for the IsTemporary type trait class.
Header file for the multiplication trait.
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: DVecSVecMultExpr.h:147
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Header file for the If class template.
MultExprTrait_< RN1, RN2 > ExprReturnType
Expression return type for the subscript operator.
Definition: DVecSVecMultExpr.h:117
#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
If_< IsExpression< VT2 >, const VT2, const VT2 &> RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:156
ResultType_< VT2 > RT2
Result type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:98
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:3087
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
If_< IsExpression< VT1 >, const VT1, const VT1 &> LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:153
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:61
TransposeType_< VT2 > TT2
Transpose type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:104
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: DVecSVecMultExpr.h:351
ConstIterator_< RemoveReference_< RightOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: DVecSVecMultExpr.h:175
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: DVecSVecMultExpr.h:427
Constraint on the data type.
Constraint on the data type.
Header file for the exception macros of the math module.
Header file for the VecVecMultExpr base class.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DVecSVecMultExpr.h:271
Constraint on the data type.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Header file for the EnableIf class template.
DVecSVecMultExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the DVecSVecMultExpr class.
Definition: DVecSVecMultExpr.h:301
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DVecSVecMultExpr.h:260
IteratorCategory iterator_category
The iterator category.
Definition: DVecSVecMultExpr.h:184
Iterator over the elements of the dense vector-sparse vector multiplication expression.
Definition: DVecSVecMultExpr.h:167
Header file for run time assertion macros.
ReturnType_< VT1 > RN1
Return type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:99
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: DVecSVecMultExpr.h:328
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:154
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: DVecSVecMultExpr.h:406
Header file for the reset shim.
#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
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DVecSVecMultExpr.h:315
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:819
#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.
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:224
ReturnType value() const
Access to the current value of the sparse element.
Definition: DVecSVecMultExpr.h:239
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: DVecSVecMultExpr.h:177
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:3082
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:73
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:108
LeftOperand lhs_
Left-hand side dense vector of the multiplication expression.
Definition: DVecSVecMultExpr.h:458
IfTrue_< useAssign, const ResultType, const DVecSVecMultExpr &> CompositeType
Data type for composite expression templates.
Definition: DVecSVecMultExpr.h:150
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:66
Compile time evaluation of the size of a vector.The Size type trait evaluates the size of the given v...
Definition: Size.h:74
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:130
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: DVecSVecMultExpr.h:371
ResultType_< VT1 > RT1
Result type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:97
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:423
IteratorType it_
Iterator over the elements of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:290
TransposeType_< VT1 > TT1
Transpose type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:103
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
Base class for all vector/vector multiplication expression templates.The VecVecMultExpr class serves ...
Definition: VecVecMultExpr.h:66
CompositeType_< VT1 > CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:101
#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 function trace functionality.
size_t index() const
Access to the current index of the sparse element.
Definition: DVecSVecMultExpr.h:249