35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_
101 template<
typename VT
104 class SVecScalarDivExpr :
public SparseVector< SVecScalarDivExpr<VT,ST,TF>, TF >
105 ,
private VecScalarDivExpr
106 ,
private Computation
139 template<
typename VT2 >
142 enum :
bool { value = useAssign };
155 template<
typename VT2 >
156 struct UseSMPAssign {
157 enum :
bool { value = ( !VT2::smpAssignable || !VT::smpAssignable ) && useAssign };
184 enum :
bool { smpAssignable =
false };
346 inline ReturnType
at(
size_t index )
const {
347 if( index >=
vector_.size() ) {
350 return (*
this)[index];
379 inline size_t size() const noexcept {
456 template<
typename T >
457 inline bool canAlias(
const T* alias )
const noexcept {
458 return vector_.canAlias( alias );
468 template<
typename T >
469 inline bool isAliased(
const T* alias )
const noexcept {
470 return vector_.isAliased( alias );
494 template<
typename VT2 >
502 assign( ~lhs, rhs.vector_ );
503 (~lhs) /= rhs.scalar_;
522 template<
typename VT2 >
530 assign( ~lhs, rhs.vector_ );
531 (~lhs) /= rhs.scalar_;
550 template<
typename VT2 >
551 friend inline EnableIf_< UseAssign<VT2> >
562 const ResultType tmp(
serial( rhs ) );
563 addAssign( ~lhs, tmp );
586 template<
typename VT2 >
587 friend inline EnableIf_< UseAssign<VT2> >
598 const ResultType tmp(
serial( rhs ) );
599 subAssign( ~lhs, tmp );
622 template<
typename VT2 >
623 friend inline EnableIf_< UseAssign<VT2> >
634 const ResultType tmp(
serial( rhs ) );
635 multAssign( ~lhs, tmp );
666 template<
typename VT2 >
667 friend inline EnableIf_< UseSMPAssign<VT2> >
678 const ResultType tmp( rhs );
702 template<
typename VT2 >
703 friend inline EnableIf_< UseSMPAssign<VT2> >
714 const ResultType tmp( rhs );
738 template<
typename VT2 >
739 friend inline EnableIf_< UseSMPAssign<VT2> >
750 const ResultType tmp( rhs );
805 template<
typename T1
808 inline const EnableIf_< IsNumeric<T2>, DivExprTrait_<T1,T2> >
819 return ReturnType( ~vec, ScalarType(1)/ScalarType(scalar) );
849 template<
typename VT
853 inline const EnableIf_< And< IsNumeric<ST2>, Or< IsInvertible<ST1>, IsInvertible<ST2> > >
854 , MultExprTrait_< SVecScalarDivExpr<VT,ST1,TF>, ST2 > >
855 operator*(
const SVecScalarDivExpr<VT,ST1,TF>& vec, ST2 scalar )
859 return vec.leftOperand() * ( scalar / vec.rightOperand() );
878 template<
typename ST1
882 inline const EnableIf_< And< IsNumeric<ST1>, Or< IsInvertible<ST1>, IsInvertible<ST2> > >
883 , MultExprTrait_< ST1, SVecScalarDivExpr<VT,ST2,TF> > >
884 operator*( ST1 scalar,
const SVecScalarDivExpr<VT,ST2,TF>& vec )
888 return vec.leftOperand() * ( scalar / vec.rightOperand() );
907 template<
typename VT
911 inline const EnableIf_< IsNumeric<ST2>
912 , DivExprTrait_< VT, MultTrait_<ST1,ST2> > >
913 operator/(
const SVecScalarDivExpr<VT,ST1,TF>& vec, ST2 scalar )
919 typedef MultTrait_<ST1,ST2> MultType;
920 typedef DivExprTrait_<VT,MultType>
ReturnType;
921 typedef RightOperand_<ReturnType> ScalarType;
923 if( IsMultExpr<ReturnType>::value ) {
924 return ReturnType( vec.leftOperand(), ScalarType(1)/( vec.rightOperand() * scalar ) );
927 return ReturnType( vec.leftOperand(), vec.rightOperand() * scalar );
944 template<
typename VT,
typename ST,
bool TF >
961 template<
typename VT,
typename ST1,
typename ST2 >
966 using ScalarType = DivTrait_<ST2,ST1>;
971 using Type = If_< And< IsSparseVector<VT>, IsColumnVector<VT>
972 , IsNumeric<ST1>, IsNumeric<ST2> >
973 , If_< IsInvertible<ScalarType>
974 , SVecScalarMultExprTrait_<VT,ScalarType>
975 , SVecScalarMultExpr< SVecScalarDivExpr<VT,ST1,false>, ST2,
false > >
993 template<
typename VT,
typename ST1,
typename ST2 >
998 using ScalarType = DivTrait_<ST2,ST1>;
1003 using Type = If_< And< IsSparseVector<VT>, IsRowVector<VT>
1004 , IsNumeric<ST1>, IsNumeric<ST2> >
1005 , If_< IsInvertible<ScalarType>
1006 , SVecScalarMultExprTrait_<VT,ScalarType>
1007 , SVecScalarMultExpr< SVecScalarDivExpr<VT,ST1,true>, ST2,
true > >
1025 template<
typename VT,
typename ST,
bool TF,
bool AF >
1030 using Type = DivExprTrait_< SubvectorExprTrait_<const VT,AF>, ST >;
CompositeType_< VT > CT
Composite type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:112
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:217
#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
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:280
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
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 or privately) 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:73
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecScalarDivExpr.h:469
ConstIterator_< RemoveReference_< LeftOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:198
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: SVecScalarDivExpr.h:424
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:160
Header file for the serial shim.
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SVecScalarDivExpr.h:204
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:359
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:195
Header file for the IsRowVector type trait.
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.
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
Header file for the Computation base class.
DifferenceType difference_type
Difference between two iterators.
Definition: SVecScalarDivExpr.h:211
ValueType * PointerType
Pointer return type.
Definition: SVecScalarDivExpr.h:202
Header file for the RequiresEvaluation type trait.
PointerType pointer
Pointer return type.
Definition: SVecScalarDivExpr.h:209
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecScalarDivExpr.h:435
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:323
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:129
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecScalarDivExpr.h:389
DivTrait_< RT, ST > ResultType
Result type for expression template evaluations.
Definition: SVecScalarDivExpr.h:165
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
Header file for the DivExprTrait class template.
ReferenceType reference
Reference return type.
Definition: SVecScalarDivExpr.h:210
SVecScalarDivExpr(const VT &vector, ST scalar) noexcept
Constructor for the SVecScalarDivExpr class.
Definition: SVecScalarDivExpr.h:321
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
RightOperand scalar_
Right hand side scalar of the multiplication expression.
Definition: SVecScalarDivExpr.h:310
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
const EnableIf_< IsNumeric< T2 >, DivExprTrait_< T1, T2 > > operator/(const DenseMatrix< T1, SO > &mat, T2 scalar)
Division operator for the division of a dense matrix by a scalar value ( ).
Definition: DMatScalarDivExpr.h:966
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.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:291
IteratorType vector_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:309
Header file for the IsMultExpr type trait class.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2647
DivExprTrait_< RN, ST > ExprReturnType
Expression return type for the subscript operator.
Definition: SVecScalarDivExpr.h:125
Header file for the Or class template.
Iterator over the elements of the sparse vector/scalar multiplication expression. ...
Definition: SVecScalarDivExpr.h:190
#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
ResultType_< VT > RT
Result type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:110
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
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecScalarDivExpr.h:302
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecScalarDivExpr.h:200
#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.
#define BLAZE_CONSTRAINT_MUST_BE_REFERENCE_TYPE(T)
Constraint on the data type.In case the given data type T is not a reference type, a compilation error is created.
Definition: Reference.h:60
Header file for the exception macros of the math module.
ReturnType_< VT > RN
Return type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:111
Constraint on the data type.
Header file for all forward declarations for expression class templates.
ConstIterator & operator++()
Pre-increment operator.
Definition: SVecScalarDivExpr.h:228
Constraint on the data type.
Header file for the EnableIf class template.
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: SVecScalarDivExpr.h:412
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecScalarDivExpr.h:457
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SVecScalarDivExpr.h:477
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SVecScalarDivExpr.h:179
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecScalarDivExpr.h:259
typename DivTrait< T1, T2 >::Type DivTrait_
Auxiliary alias declaration for the DivTrait class template.The DivTrait_ alias declaration provides ...
Definition: DivTrait.h:245
Header file for the IsNumeric type trait.
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecScalarDivExpr.h:346
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecScalarDivExpr.h:379
Header file for the IsSparseVector type trait.
Header file for run time assertion macros.
Utility type for generic codes.
RightOperand rightOperand() const noexcept
Returns the right-hand side scalar operand.
Definition: SVecScalarDivExpr.h:445
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:160
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
ValueType & ReferenceType
Reference return type.
Definition: SVecScalarDivExpr.h:203
If_< IsExpression< VT >, const VT, const VT & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:176
#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:117
LeftOperand vector_
Left-hand side sparse vector of the division expression.
Definition: SVecScalarDivExpr.h:476
Element ValueType
Type of the underlying pointers.
Definition: SVecScalarDivExpr.h:201
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:223
#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 Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:239
ElementType_< ResultType > ElementType
Resulting element type.
Definition: SVecScalarDivExpr.h:167
typename T::ConstIterator ConstIterator_
Alias declaration for nested ConstIterator type definitions.The ConstIterator_ alias declaration prov...
Definition: Aliases.h:103
size_t index() const
Access to the current index of the sparse element.
Definition: SVecScalarDivExpr.h:269
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:70
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecScalarDivExpr.h:170
IfTrue_< useAssign, const ResultType, const SVecScalarDivExpr & > CompositeType
Data type for composite expression templates.
Definition: SVecScalarDivExpr.h:173
Header file for the IsComputation type trait class.
typename DivExprTrait< T1, T2 >::Type DivExprTrait_
Auxiliary alias declaration for the DivExprTrait class template.The DivExprTrait_ alias declaration p...
Definition: DivExprTrait.h:196
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecScalarDivExpr.h:333
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
SVecScalarDivExpr< VT, ST, TF > This
Type of this SVecScalarDivExpr instance.
Definition: SVecScalarDivExpr.h:164
Header file for the SubvectorExprTrait class template.
typename T::RightOperand RightOperand_
Alias declaration for nested RightOperand type definitions.The RightOperand_ alias declaration provid...
Definition: Aliases.h:363
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:403
Header file for the IsColumnVector type trait.
IteratorCategory iterator_category
The iterator category.
Definition: SVecScalarDivExpr.h:207
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:249
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
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:369
Header file for the IsExpression type trait class.
ValueType value_type
Type of the underlying pointers.
Definition: SVecScalarDivExpr.h:208
Header file for the FunctionTrace class.
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecScalarDivExpr.h:166
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: SVecScalarDivExpr.h:400