35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_ 100 template<
typename VT
103 class SVecScalarDivExpr
104 :
public VecScalarDivExpr< SparseVector< SVecScalarDivExpr<VT,ST,TF>, TF > >
105 ,
private Computation
138 template<
typename VT2 >
141 enum :
bool { value = useAssign };
154 template<
typename VT2 >
155 struct UseSMPAssign {
156 enum :
bool { value = ( !VT2::smpAssignable || !VT::smpAssignable ) && useAssign };
183 enum :
bool { smpAssignable =
false };
346 if( index >=
vector_.size() ) {
349 return (*
this)[index];
378 inline size_t size() const noexcept {
455 template<
typename T >
456 inline bool canAlias(
const T* alias )
const noexcept {
457 return vector_.canAlias( alias );
467 template<
typename T >
468 inline bool isAliased(
const T* alias )
const noexcept {
469 return vector_.isAliased( alias );
493 template<
typename VT2 >
501 assign( ~lhs, rhs.vector_ );
502 (~lhs) /= rhs.scalar_;
521 template<
typename VT2 >
529 assign( ~lhs, rhs.vector_ );
530 (~lhs) /= rhs.scalar_;
549 template<
typename VT2 >
550 friend inline EnableIf_< UseAssign<VT2> >
562 addAssign( ~lhs, tmp );
585 template<
typename VT2 >
586 friend inline EnableIf_< UseAssign<VT2> >
598 subAssign( ~lhs, tmp );
621 template<
typename VT2 >
622 friend inline EnableIf_< UseAssign<VT2> >
634 multAssign( ~lhs, tmp );
665 template<
typename VT2 >
666 friend inline EnableIf_< UseSMPAssign<VT2> >
701 template<
typename VT2 >
702 friend inline EnableIf_< UseSMPAssign<VT2> >
737 template<
typename VT2 >
738 friend inline EnableIf_< UseSMPAssign<VT2> >
786 template<
typename VT
789 struct SVecScalarDivExprHelper
793 using ScalarType = If_< Or< IsFloatingPoint< UnderlyingBuiltin_<VT> >
794 , IsFloatingPoint< UnderlyingBuiltin_<ST> > >
795 , If_< And< IsComplex< UnderlyingNumeric_<VT> >
797 , DivTrait_< UnderlyingBuiltin_<VT>, ST >
798 , DivTrait_< UnderlyingNumeric_<VT>, ST > >
804 using Type = If_< IsInvertible<ScalarType>
805 , SVecScalarMultExpr<VT,ScalarType,TF>
806 , SVecScalarDivExpr<VT,ScalarType,TF> >;
836 template<
typename VT
839 ,
typename = EnableIf_< IsNumeric<ST> > >
840 inline decltype(
auto) operator/( const
SparseVector<VT,TF>& vec, ST scalar )
846 using ReturnType =
typename SVecScalarDivExprHelper<VT,ST,TF>::Type;
850 return ReturnType( ~vec, ScalarType(1)/ScalarType(scalar) );
880 template<
typename VT
889 return vec.leftOperand() * ( scalar / vec.rightOperand() );
908 template<
typename ST1
917 return vec.leftOperand() * ( scalar / vec.rightOperand() );
936 template<
typename VT
948 using ReturnType =
typename SVecScalarDivExprHelper<VT,MultType,TF>::Type;
952 return ReturnType( vec.leftOperand(), ScalarType(1)/( vec.rightOperand() * scalar ) );
955 return ReturnType( vec.leftOperand(), vec.rightOperand() * scalar );
972 template<
typename VT,
typename ST,
bool TF >
973 struct Size< SVecScalarDivExpr<VT,ST,TF> >
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:216
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecScalarDivExpr.h:378
#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:70
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:1073
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:197
size_t index() const
Access to the current index of the sparse element.
Definition: SVecScalarDivExpr.h:268
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:368
If_< IsExpression< VT >, const VT, const VT &> LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:175
typename MultTrait< T1, T2 >::Type MultTrait_
Auxiliary alias declaration for the MultTrait class template.The MultTrait_ alias declaration provide...
Definition: MultTrait.h:250
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
IteratorCategory iterator_category
The iterator category.
Definition: SVecScalarDivExpr.h:206
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:248
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:169
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:178
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:124
SVecScalarDivExpr(const VT &vector, ST scalar) noexcept
Constructor for the SVecScalarDivExpr class.
Definition: SVecScalarDivExpr.h:320
DivTrait_< RT, ST > ResultType
Result type for expression template evaluations.
Definition: SVecScalarDivExpr.h:164
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecScalarDivExpr.h:301
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:72
RightOperand scalar_
Right hand side scalar of the multiplication expression.
Definition: SVecScalarDivExpr.h:309
ReturnType_< VT > RN
Return type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:110
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:423
IfTrue_< useAssign, const ResultType, const SVecScalarDivExpr &> CompositeType
Data type for composite expression templates.
Definition: SVecScalarDivExpr.h:172
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:57
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:308
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:189
#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:3087
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
#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:258
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecScalarDivExpr.h:468
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:227
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:388
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: SVecScalarDivExpr.h:399
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SVecScalarDivExpr.h:476
typename DivTrait< T1, T2 >::Type DivTrait_
Auxiliary alias declaration for the DivTrait class template.The DivTrait_ alias declaration provides ...
Definition: DivTrait.h:250
CompositeType_< VT > CT
Composite type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:111
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:456
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:358
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:238
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecScalarDivExpr.h:199
RightOperand rightOperand() const noexcept
Returns the right-hand side scalar operand.
Definition: SVecScalarDivExpr.h:444
Header file for run time assertion macros.
Utility type for generic codes.
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:166
Compile time check for data types.This type trait tests whether or not the given template parameter i...
Definition: IsInvertible.h:83
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecScalarDivExpr.h:434
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
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:109
LeftOperand vector_
Left-hand side sparse vector of the division expression.
Definition: SVecScalarDivExpr.h:475
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:3082
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:411
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:279
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 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
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecScalarDivExpr.h:345
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:290
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:165
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:332
#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.