35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECDVECDIVEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_SVECDVECDIVEXPR_H_ 91 template<
typename VT1
95 :
public VecVecDivExpr< SparseVector< SVecDVecDivExpr<VT1,VT2,TF>, TF > >
115 static constexpr
bool returnExpr = ( !IsTemporary_v<RN1> && !IsTemporary_v<RN2> );
129 static constexpr
bool useAssign = ( RequiresEvaluation_v<VT1> || RequiresEvaluation_v<VT2> );
132 template<
typename VT >
134 static constexpr
bool UseAssign_v =
useAssign;
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 >
488 for(
auto element=x.begin(); element!=x.end(); ++element )
489 (~lhs)[element->index()] = element->value() / y[element->index()];
508 template<
typename VT >
524 (~lhs).reserve( x.nonZeros() );
527 for(
auto element=x.begin(); element!=x.end(); ++element )
528 (~lhs).append( element->index(), element->value() / y[element->index()] );
547 template<
typename VT >
548 friend inline auto addAssign( DenseVector<VT,TF>& lhs,
const SVecDVecDivExpr& rhs )
549 -> EnableIf_t< UseAssign_v<VT> >
562 for(
auto element=x.begin(); element!=x.end(); ++element )
563 (~lhs)[element->index()] += element->value() / y[element->index()];
586 template<
typename VT >
587 friend inline auto subAssign( DenseVector<VT,TF>& lhs,
const SVecDVecDivExpr& rhs )
588 -> EnableIf_t< UseAssign_v<VT> >
601 for(
auto element=x.begin(); element!=x.end(); ++element )
602 (~lhs)[element->index()] -= element->value() / y[element->index()];
625 template<
typename VT >
626 friend inline auto multAssign( DenseVector<VT,TF>& lhs,
const SVecDVecDivExpr& rhs )
627 -> EnableIf_t< UseAssign_v<VT> >
640 const auto end( x.end() );
641 auto begin( x.begin() );
646 for( ; i<index; ++i )
652 for( ; i<rhs.size(); ++i )
697 template<
typename VT1
700 , DisableIf_t< IsZero_v<VT1> >* =
nullptr >
701 inline const SVecDVecDivExpr<VT1,VT2,TF>
702 svecdvecdiv(
const SparseVector<VT1,TF>& lhs,
const DenseVector<VT2,TF>& rhs )
708 return SVecDVecDivExpr<VT1,VT2,TF>( ~lhs, ~rhs );
727 template<
typename VT1
730 , EnableIf_t< IsZero_v<VT1> >* =
nullptr >
731 inline decltype(
auto)
732 svecdvecdiv( const SparseVector<VT1,TF>& lhs, const DenseVector<VT2,TF>& rhs )
740 using ReturnType =
const DivTrait_t< ResultType_t<VT1>, ResultType_t<VT2> >;
745 return ReturnType( (~lhs).
size() );
777 template<
typename VT1
780 inline decltype(
auto)
785 if( (~lhs).
size() != (~rhs).
size() ) {
789 return svecdvecdiv( ~lhs, ~rhs );
804 template<
typename VT1,
typename VT2,
bool TF >
805 struct Size< SVecDVecDivExpr<VT1,VT2,TF>, 0UL >
806 :
public Max_t< Size<VT1,0UL>, Size<VT2,0UL> >
#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.
Header file for auxiliary alias declarations.
ReferenceType reference
Reference return type.
Definition: SVecDVecDivExpr.h:187
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: SVecDVecDivExpr.h:115
Header file for the VecVecDivExpr base class.
Header file for basic type definitions.
Header file for the SparseVector base class.
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecDVecDivExpr.h:338
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
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecDVecDivExpr.h:312
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.
typename DivTrait< T1, T2 >::Type DivTrait_t
Auxiliary alias declaration for the DivTrait class template.The DivTrait_t alias declaration provides...
Definition: DivTrait.h:239
ResultType_t< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:100
ConstIterator_t< RemoveReference_t< LeftOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: SVecDVecDivExpr.h:175
If_t< useAssign, const ResultType, const SVecDVecDivExpr & > CompositeType
Data type for composite expression templates.
Definition: SVecDVecDivExpr.h:150
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:595
DivTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecDVecDivExpr.h:142
Constraint on the data type.
Header file for the MAYBE_UNUSED function template.
LeftOperand lhs_
Left-hand side sparse vector of the division expression.
Definition: SVecDVecDivExpr.h:455
Header file for the Computation base class.
Header file for the reset shim.
Constraint on the data type.
Header file for the RequiresEvaluation type trait.
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.The ReturnType_t alias declaration provides ...
Definition: Aliases.h:410
RightOperand rhs_
Right-hand side dense vector of the division expression.
Definition: SVecDVecDivExpr.h:456
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecDVecDivExpr.h:348
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.The ElementType_t alias declaration provide...
Definition: Aliases.h:170
CompositeType_t< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:104
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecDVecDivExpr.h:325
typename EnableIf< Condition, T >::Type EnableIf_t
Auxiliary type for the EnableIf class template.The EnableIf_t alias declaration provides a convenient...
Definition: EnableIf.h:138
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: SVecDVecDivExpr.h:172
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecDVecDivExpr.h:143
Header file for the ValueIndexPair class.
Header file for the IsTemporary type trait class.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the If class template.
Expression object for sparse vector-dense vector divisions.The SVecDVecDivExpr class represents the c...
Definition: Forward.h:148
#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
#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
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: SVecDVecDivExpr.h:161
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecDVecDivExpr.h:436
RightOperand vec_
Right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:287
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:76
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecDVecDivExpr.h:177
constexpr void MAYBE_UNUSED(const Args &...)
Suppression of unused parameter warnings.
Definition: MaybeUnused.h:81
#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
ValueType & ReferenceType
Reference return type.
Definition: SVecDVecDivExpr.h:180
decltype(std::declval< RN1 >()/std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: SVecDVecDivExpr.h:118
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecDVecDivExpr.h:358
Constraint on the data type.
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: SVecDVecDivExpr.h:391
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: SVecDVecDivExpr.h:144
If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:156
Constraint on the data type.
SVecDVecDivExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecDVecDivExpr class.
Definition: SVecDVecDivExpr.h:298
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecDivExpr.h:226
Header file for the exception macros of the math module.
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: SVecDVecDivExpr.h:424
size_t index() const
Access to the current index of the sparse element.
Definition: SVecDVecDivExpr.h:246
Constraint on the data type.
Constraint on the data type.
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecDVecDivExpr.h:236
Header file for the EnableIf class template.
ElementType ValueType
Type of the underlying pointers.
Definition: SVecDVecDivExpr.h:178
ValueType value_type
Type of the underlying pointers.
Definition: SVecDVecDivExpr.h:185
ConstIterator(IteratorType it, RightOperand vec)
Constructor for the ConstIterator class.
Definition: SVecDVecDivExpr.h:194
IteratorType it_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:286
ReturnType_t< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:102
IteratorCategory iterator_category
The iterator category.
Definition: SVecDVecDivExpr.h:184
ValueType * PointerType
Pointer return type.
Definition: SVecDVecDivExpr.h:179
ResultType_t< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:101
If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:153
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.
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecDVecDivExpr.h:257
typename T::CompositeType CompositeType_t
Alias declaration for nested CompositeType type definitions.The CompositeType_t alias declaration pro...
Definition: Aliases.h:90
ReturnType_t< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:103
Header file for the division trait.
Iterator over the elements of the sparse vector-dense vector division expression.
Definition: SVecDVecDivExpr.h:167
ConstIterator & operator++()
Pre-increment operator.
Definition: SVecDVecDivExpr.h:205
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
Header file for all forward declarations for expression class templates.
constexpr size_t size(const Matrix< MT, SO > &matrix) noexcept
Returns the total number of elements of the matrix.
Definition: Matrix.h:530
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecDVecDivExpr.h:368
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SVecDVecDivExpr.h:181
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:808
#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
const Element operator *() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecDivExpr.h:216
Header file for the RemoveReference type trait.
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: SVecDVecDivExpr.h:379
CompositeType_t< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:105
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecDVecDivExpr.h:414
typename T::ConstIterator ConstIterator_t
Alias declaration for nested ConstIterator type definitions.The ConstIterator_t alias declaration pro...
Definition: Aliases.h:110
#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
static constexpr bool useAssign
Compilation switch for the evaluation strategy of the division expression.
Definition: SVecDVecDivExpr.h:129
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECDIVEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecDivExpr.h:104
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: SVecDVecDivExpr.h:403
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecDVecDivExpr.h:268
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecDVecDivExpr.h:448
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:146
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecDVecDivExpr.h:279
Header file for the Max_t alias template.
PointerType pointer
Pointer return type.
Definition: SVecDVecDivExpr.h:186
Header file for the Size type trait.
#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
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecDVecDivExpr.h:147
#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.
If_t< Less_t< T1, T2 >::value, T2, T1 > Max_t
Compile time value evaluation.The Max_t alias template selects the larger of the two given template a...
Definition: Max.h:73