35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_ 102 class SVecScalarDivExpr
103 :
public VecScalarDivExpr< SparseVector< SVecScalarDivExpr<VT,ST,TF>, TF > >
104 ,
private Computation
137 template<
typename VT2 >
140 enum :
bool { value = useAssign };
153 template<
typename VT2 >
154 struct UseSMPAssign {
155 enum :
bool { value = ( !VT2::smpAssignable || !VT::smpAssignable ) && useAssign };
182 enum :
bool { smpAssignable =
false };
345 if( index >=
vector_.size() ) {
348 return (*
this)[index];
377 inline size_t size() const noexcept {
454 template<
typename T >
455 inline bool canAlias(
const T* alias )
const noexcept {
456 return vector_.canAlias( alias );
466 template<
typename T >
467 inline bool isAliased(
const T* alias )
const noexcept {
468 return vector_.isAliased( alias );
492 template<
typename VT2 >
500 assign( ~lhs, rhs.vector_ );
501 (~lhs) /= rhs.scalar_;
520 template<
typename VT2 >
528 assign( ~lhs, rhs.vector_ );
529 (~lhs) /= rhs.scalar_;
548 template<
typename VT2 >
549 friend inline EnableIf_< UseAssign<VT2> >
561 addAssign( ~lhs, tmp );
584 template<
typename VT2 >
585 friend inline EnableIf_< UseAssign<VT2> >
597 subAssign( ~lhs, tmp );
620 template<
typename VT2 >
621 friend inline EnableIf_< UseAssign<VT2> >
633 multAssign( ~lhs, tmp );
664 template<
typename VT2 >
665 friend inline EnableIf_< UseSMPAssign<VT2> >
700 template<
typename VT2 >
701 friend inline EnableIf_< UseSMPAssign<VT2> >
736 template<
typename VT2 >
737 friend inline EnableIf_< UseSMPAssign<VT2> >
785 template<
typename VT
788 struct SVecScalarDivExprHelper
792 using ScalarType = If_< Or< IsFloatingPoint< UnderlyingBuiltin_<VT> >
793 , IsFloatingPoint< UnderlyingBuiltin_<ST> > >
794 , If_< And< IsComplex< UnderlyingNumeric_<VT> >
796 , DivTrait_< UnderlyingBuiltin_<VT>, ST >
797 , DivTrait_< UnderlyingNumeric_<VT>, ST > >
803 using Type = If_< IsInvertible<ScalarType>
804 , SVecScalarMultExpr<VT,ScalarType,TF>
805 , SVecScalarDivExpr<VT,ScalarType,TF> >;
835 template<
typename VT
838 ,
typename = EnableIf_< IsNumeric<ST> > >
839 inline decltype(
auto) operator/( const
SparseVector<VT,TF>& vec, ST scalar )
845 using ReturnType =
typename SVecScalarDivExprHelper<VT,ST,TF>::Type;
849 return ReturnType( ~vec, ScalarType(1)/ScalarType(scalar) );
879 template<
typename VT
888 return vec.leftOperand() * ( scalar / vec.rightOperand() );
907 template<
typename ST1
916 return vec.leftOperand() * ( scalar / vec.rightOperand() );
935 template<
typename VT
947 using ReturnType =
typename SVecScalarDivExprHelper<VT,MultType,TF>::Type;
951 return ReturnType( vec.leftOperand(), ScalarType(1)/( vec.rightOperand() * scalar ) );
954 return ReturnType( vec.leftOperand(), vec.rightOperand() * scalar );
971 template<
typename VT,
typename ST,
bool TF >
972 struct Size< SVecScalarDivExpr<VT,ST,TF>, 0UL >
973 :
public Size<VT,0UL>
Header file for the UnderlyingNumeric type trait.
Pointer difference type of the Blaze library.
Header file for auxiliary alias declarations.
Constraint on the data type.
ConstIterator(IteratorType vector, RightOperand scalar)
Constructor for the ConstIterator class.
Definition: SVecScalarDivExpr.h:215
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecScalarDivExpr.h:377
#define BLAZE_USER_ASSERT(expr, msg)
Run time assertion macro for user checks.In case of an invalid run time expression, the program execution is terminated. The BLAZE_USER_ASSERT macro can be disabled by setting the BLAZE_USER_ASSERT flag to zero or by defining NDEBUG during the compilation.
Definition: Assert.h:117
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:69
Header file for basic type definitions.
Header file for the SparseVector base class.
Compile time check whether the given type is a multiplication expression template.This type trait class tests whether or not the given type Type is a multiplication expression template (i.e. an expression representing an element-wise vector multiplication, a matrix/vector multiplication, a vector/matrix multiplication, or a matrix multiplication). In order to qualify as a valid multiplication expression template, the given type has to derive publicly from the MultExpr base class. In case the given type is a valid multiplication expression template, the value member constant is set to true, the nested type definition Type is TrueType, and the class derives from TrueType. Otherwise value is set to false, Type is FalseType, and the class derives from FalseType.
Definition: IsMultExpr.h:97
decltype(auto) operator/(const DenseMatrix< MT, SO > &mat, ST scalar)
Division operator for the division of a dense matrix by a scalar value ( ).
Definition: DMatScalarDivExpr.h:1070
EnableIf_< IsDenseMatrix< MT1 > > smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:164
Header file for the serial shim.
ConstIterator_< RemoveReference_< LeftOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:196
size_t index() const
Access to the current index of the sparse element.
Definition: SVecScalarDivExpr.h:267
Header file for the VecScalarDivExpr base class.
EnableIf_< IsDenseVector< VT1 > > smpMultAssign(Vector< 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:193
Header file for the And class template.
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:367
If_< IsExpression< VT >, const VT, const VT &> LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:174
typename MultTrait< T1, T2 >::Type MultTrait_
Auxiliary alias declaration for the MultTrait class template.The MultTrait_ alias declaration provide...
Definition: MultTrait.h:291
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
IteratorCategory iterator_category
The iterator category.
Definition: SVecScalarDivExpr.h:205
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:247
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:343
EnableIf_< IsDenseMatrix< MT1 > > smpAddAssign(Matrix< 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:133
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecScalarDivExpr.h:168
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
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SVecScalarDivExpr.h:177
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 DivExprTrait class template.
DivExprTrait_< RN, ST > ExprReturnType
Expression return type for the subscript operator.
Definition: SVecScalarDivExpr.h:123
SVecScalarDivExpr(const VT &vector, ST scalar) noexcept
Constructor for the SVecScalarDivExpr class.
Definition: SVecScalarDivExpr.h:319
DivTrait_< RT, ST > ResultType
Result type for expression template evaluations.
Definition: SVecScalarDivExpr.h:163
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecScalarDivExpr.h:300
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:71
RightOperand scalar_
Right hand side scalar of the multiplication expression.
Definition: SVecScalarDivExpr.h:308
ReturnType_< VT > RN
Return type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:109
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: SVecScalarDivExpr.h:422
IfTrue_< useAssign, const ResultType, const SVecScalarDivExpr &> CompositeType
Data type for composite expression templates.
Definition: SVecScalarDivExpr.h:171
Header file for the ValueIndexPair class.
Header file for the IsTemporary type trait class.
Header file for the multiplication trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the If class template.
Header file for the IsFloatingPoint type trait.
IteratorType vector_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:307
Header file for the UnderlyingBuiltin type trait.
Header file for the IsMultExpr type trait class.
Header file for the Or class template.
Iterator over the elements of the sparse vector/scalar multiplication expression. ...
Definition: SVecScalarDivExpr.h:188
#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
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:3085
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:76
#define BLAZE_CONSTRAINT_MUST_BE_SAME_TYPE(A, B)
Data type constraint.In case the two types A and B are not the same (ignoring all cv-qualifiers of bo...
Definition: SameType.h:71
#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.
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecScalarDivExpr.h:257
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecScalarDivExpr.h:467
Header file for the exception macros of the math module.
decltype(auto) operator*(const DenseMatrix< MT1, false > &lhs, const DenseMatrix< MT2, false > &rhs)
Multiplication operator for the multiplication of two row-major dense matrices ( ).
Definition: DMatDMatMultExpr.h:8893
Constraint on the data type.
Header file for all forward declarations for expression class templates.
ConstIterator & operator++()
Pre-increment operator.
Definition: SVecScalarDivExpr.h:226
Constraint on the data type.
Header file for the EnableIf class template.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecScalarDivExpr.h:387
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: SVecScalarDivExpr.h:398
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SVecScalarDivExpr.h:475
typename DivTrait< T1, T2 >::Type DivTrait_
Auxiliary alias declaration for the DivTrait class template.The DivTrait_ alias declaration provides ...
Definition: DivTrait.h:292
CompositeType_< VT > CT
Composite type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:110
Header file for the IsNumeric type trait.
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecScalarDivExpr.h:455
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:357
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:237
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecScalarDivExpr.h:198
RightOperand rightOperand() const noexcept
Returns the right-hand side scalar operand.
Definition: SVecScalarDivExpr.h:443
Header file for run time assertion macros.
Header file for the division trait.
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
Constraint on the data type.
#define BLAZE_CONSTRAINT_MUST_BE_NUMERIC_TYPE(T)
Constraint on the data type.In case the given data type T is not a numeric (integral or floating poin...
Definition: Numeric.h:61
#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
ElementType_< ResultType > ElementType
Resulting element type.
Definition: SVecScalarDivExpr.h:165
Compile time check for data types.This type trait tests whether or not the given template parameter i...
Definition: IsInvertible.h:82
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecScalarDivExpr.h:433
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:816
#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
Expression object for divisions of a sparse vector by a scalar.The SVecScalarDivExpr class represents...
Definition: Forward.h:138
ResultType_< VT > RT
Result type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:108
LeftOperand vector_
Left-hand side sparse vector of the division expression.
Definition: SVecScalarDivExpr.h:474
Header file for the RemoveReference type trait.
Header file for the IsInvertible 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
#define BLAZE_CONSTRAINT_MUST_NOT_BE_FLOATING_POINT_TYPE(T)
Constraint on the data type.In case the given data type T is a floating point data type...
Definition: FloatingPoint.h:81
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:3080
typename T::ConstIterator ConstIterator_
Alias declaration for nested ConstIterator type definitions.The ConstIterator_ alias declaration prov...
Definition: Aliases.h:103
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: SVecScalarDivExpr.h:410
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:73
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:278
Header file for the IsComputation type trait class.
Header file for the IsBuiltin type trait.
typename DivExprTrait< T1, T2 >::Type DivExprTrait_
Auxiliary alias declaration for the DivExprTrait class template.The DivExprTrait_ alias declaration p...
Definition: DivExprTrait.h:112
Compile time logical 'or' evaluation.The Or alias declaration performs at compile time a logical 'or'...
Definition: Or.h:76
Compile time evaluation of the size of vectors and matrices.The Size type trait evaluates the size of...
Definition: Size.h:80
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:130
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecScalarDivExpr.h:344
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:289
Header file for the IsComplex type trait.
typename T::RightOperand RightOperand_
Alias declaration for nested RightOperand type definitions.The RightOperand_ alias declaration provid...
Definition: Aliases.h:383
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:423
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecScalarDivExpr.h:164
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
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecScalarDivExpr.h:331
#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.