35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECSCALARDIVEXPR_H_
98 class SVecScalarDivExpr :
public SparseVector< SVecScalarDivExpr<VT,ST,TF>, TF >
99 ,
private VecScalarDivExpr
100 ,
private Computation
133 template<
typename VT2 >
136 enum { value = useAssign };
379 template<
typename T >
381 return vector_.canAlias( alias );
391 template<
typename T >
393 return vector_.isAliased( alias );
417 template<
typename VT2 >
425 assign( ~lhs, rhs.vector_ );
426 (~lhs) /= rhs.scalar_;
445 template<
typename VT2 >
453 assign( ~lhs, rhs.vector_ );
454 (~lhs) /= rhs.scalar_;
473 template<
typename VT2 >
474 friend inline typename EnableIf< UseAssign<VT2> >::Type
509 template<
typename VT2 >
510 friend inline typename EnableIf< UseAssign<VT2> >::Type
545 template<
typename VT2 >
546 friend inline typename EnableIf< UseAssign<VT2> >::Type
612 template<
typename T1
615 inline const typename EnableIf< IsNumeric<T2>,
typename DivExprTrait<T1,T2>::Type >::Type
623 typedef typename ReturnType::RightOperand ScalarType;
626 return ReturnType( ~vec, ScalarType(1)/ScalarType(scalar) );
656 template<
typename VT
660 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST2,ST1>::Type >
661 ,
typename MultExprTrait< SVecScalarDivExpr<VT,ST1,TF>, ST2 >::Type >::Type
662 operator*(
const SVecScalarDivExpr<VT,ST1,TF>& vec, ST2 scalar )
666 return vec.leftOperand() * ( scalar / vec.rightOperand() );
685 template<
typename ST1
689 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST1,ST2>::Type >
690 ,
typename MultExprTrait< ST1, SVecScalarDivExpr<VT,ST2,TF> >::Type >::Type
691 operator*( ST1 scalar,
const SVecScalarDivExpr<VT,ST2,TF>& vec )
695 return vec.leftOperand() * ( scalar / vec.rightOperand() );
714 template<
typename VT
718 inline const typename EnableIf< IsNumeric<ST2>
719 ,
typename DivExprTrait<VT,typename MultTrait<ST1,ST2>::Type>::Type >::Type
720 operator/(
const SVecScalarDivExpr<VT,ST1,TF>& vec, ST2 scalar )
726 typedef typename MultTrait<ST1,ST2>::Type MultType;
727 typedef typename DivExprTrait<VT,MultType>::Type
ReturnType;
728 typedef typename ReturnType::RightOperand ScalarType;
730 if( IsMultExpr<ReturnType>::value ) {
731 return ReturnType( vec.leftOperand(), ScalarType(1)/( vec.rightOperand() * scalar ) );
734 return ReturnType( vec.leftOperand(), vec.rightOperand() * scalar );
751 template<
typename VT,
typename ST1,
typename ST2 >
752 struct SVecScalarMultExprTrait< SVecScalarDivExpr<VT,ST1,false>, ST2 >
756 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
760 typedef typename SVecScalarMultExprTrait<VT,typename DivTrait<ST1,ST2>::Type>::Type T1;
761 typedef SVecScalarMultExpr< SVecScalarDivExpr<VT,ST1,false>, ST2,
false > T2;
766 typedef typename SelectType< IsSparseVector<VT>::value && IsColumnVector<VT>::value &&
767 IsNumeric<ST1>::value && IsNumeric<ST2>::value
768 ,
typename SelectType<condition,T1,T2>::Type
769 , INVALID_TYPE >::Type Type;
786 template<
typename VT,
typename ST1,
typename ST2 >
787 struct TSVecScalarMultExprTrait< SVecScalarDivExpr<VT,ST1,true>, ST2 >
791 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
795 typedef typename SVecScalarMultExprTrait<VT,typename DivTrait<ST1,ST2>::Type>::Type T1;
796 typedef SVecScalarMultExpr< SVecScalarDivExpr<VT,ST1,true>, ST2,
true > T2;
801 typedef typename SelectType< IsSparseVector<VT>::value && IsRowVector<VT>::value &&
802 IsNumeric<ST1>::value && IsNumeric<ST2>::value
803 ,
typename SelectType<condition,T1,T2>::Type
804 , INVALID_TYPE >::Type Type;
821 template<
typename VT,
typename ST,
bool TF >
822 struct SubvectorExprTrait< SVecScalarDivExpr<VT,ST,TF> >
826 typedef typename DivExprTrait< typename SubvectorExprTrait<const VT>::Type, ST >::Type Type;
SVecScalarDivExpr< VT, ST, TF > This
Type of this SVecScalarDivExpr instance.
Definition: SVecScalarDivExpr.h:143
Pointer difference type of the Blaze library.
Constraint on the data type.
#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:87
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:3703
const EnableIf< IsNumeric< T2 >, typename DivExprTrait< T1, T2 >::Type >::Type operator/(const DenseMatrix< T1, SO > &mat, T2 scalar)
Division operator for the division of a dense matrix by a scalar value ( ).
Definition: DMatScalarDivExpr.h:745
PointerType pointer
Pointer return type.
Definition: SVecScalarDivExpr.h:183
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 enumeration is set to 1, the nested type definition Type is TrueType, and the class derives from TrueType. Otherwise value is set to 0, Type is FalseType, and the class derives from FalseType.
Definition: IsMultExpr.h:90
IteratorType vector_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:283
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecScalarDivExpr.h:348
VT::ResultType RT
Result type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:104
IteratorCategory iterator_category
The iterator category.
Definition: SVecScalarDivExpr.h:181
DivTrait< RT, ST >::Type ResultType
Result type for expression template evaluations.
Definition: SVecScalarDivExpr.h:144
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:196
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SVecScalarDivExpr.h:149
DivExprTrait< RN, ST >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: SVecScalarDivExpr.h:119
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2375
size_t index() const
Access to the current index of the sparse element.
Definition: SVecScalarDivExpr.h:243
Header file for the IsRowVector type trait.
Header file for the VecScalarDivExpr base class.
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:248
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecScalarDivExpr.h:276
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:265
ValueType & ReferenceType
Reference return type.
Definition: SVecScalarDivExpr.h:177
Constraint on the data type.
Header file for the DivExprTrait class template.
Evaluation of the resulting expression type of a division.Via this type trait it is possible to evalu...
Definition: DivExprTrait.h:87
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:90
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:213
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:250
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecScalarDivExpr.h:233
VT::ReturnType RN
Return type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:105
Header file for the ValueIndexPair class.
Compile time type selection.The SelectType class template selects one of the two given types T1 and T...
Definition: SelectType.h:59
Header file for the IsTemporary type trait class.
Header file for the multiplication trait.
RightOperand rightOperand() const
Returns the right-hand side scalar operand.
Definition: SVecScalarDivExpr.h:368
Header file for the IsFloatingPoint type trait.
Header file for the IsMultExpr type trait class.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2379
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:169
Element ValueType
Type of the underlying pointers.
Definition: SVecScalarDivExpr.h:175
Iterator over the elements of the sparse vector/scalar multiplication expression. ...
Definition: SVecScalarDivExpr.h:164
void assign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the assignment of a matrix to a matrix.
Definition: Matrix.h:179
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SVecScalarDivExpr.h:400
RightOperand scalar_
Right hand side scalar of the multiplication expression.
Definition: SVecScalarDivExpr.h:284
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SVecScalarDivExpr.h:392
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
RemoveReference< LeftOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:172
#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:89
#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:79
Constraint on the data type.
ConstIterator(IteratorType vector, RightOperand scalar)
Constructor for the ConstIterator class.
Definition: SVecScalarDivExpr.h:191
#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:78
SVecScalarDivExpr(const VT &vector, ST scalar)
Constructor for the SVecScalarDivExpr class.
Definition: SVecScalarDivExpr.h:295
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SVecScalarDivExpr.h:178
void multAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the multiplication assignment of a matrix to a matrix.
Definition: Matrix.h:269
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Header file for the EnableIf class template.
Header file for the BaseElementType type trait.
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SVecScalarDivExpr.h:158
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecScalarDivExpr.h:307
Header file for the IsNumeric type trait.
ValueType value_type
Type of the underlying pointers.
Definition: SVecScalarDivExpr.h:182
Header file for the IsSparseVector type trait.
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2374
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
Header file for run time assertion macros.
Utility type for generic codes.
Header file for the division trait.
void addAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the addition assignment of a matrix to a matrix.
Definition: Matrix.h:209
LeftOperand vector_
Left-hand side sparse vector of the division expression.
Definition: SVecScalarDivExpr.h:399
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecScalarDivExpr.h:254
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:318
SelectType< useAssign, const ResultType, const SVecScalarDivExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SVecScalarDivExpr.h:152
VT::CompositeType CT
Composite type of the sparse vector expression.
Definition: SVecScalarDivExpr.h:106
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
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:79
void subAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the subtraction assignment of a matrix to matrix.
Definition: Matrix.h:239
SelectType< IsExpression< VT >::value, const VT, const VT & >::Type LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecScalarDivExpr.h:155
ReferenceType reference
Reference return type.
Definition: SVecScalarDivExpr.h:184
Expression object for divisions of a sparse vector by a scalar.The SVecScalarDivExpr class represents...
Definition: Forward.h:111
ConstIterator & operator++()
Pre-increment operator.
Definition: SVecScalarDivExpr.h:202
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecScalarDivExpr.h:174
LeftOperand leftOperand() const
Returns the left-hand side sparse vector operand.
Definition: SVecScalarDivExpr.h:358
Header file for the RemoveReference type trait.
Base template for the DivTrait class.
Definition: DivTrait.h:141
#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:118
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SVecScalarDivExpr.h:380
ResultType::ElementType ElementType
Resulting element type.
Definition: SVecScalarDivExpr.h:146
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:69
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecScalarDivExpr.h:223
Header file for the IsComputation type trait class.
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:105
#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
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2370
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecScalarDivExpr.h:328
Header file for basic type definitions.
Header file for the SubvectorExprTrait class template.
DifferenceType difference_type
Difference between two iterators.
Definition: SVecScalarDivExpr.h:185
Header file for the IsColumnVector 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:238
#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
ValueType * PointerType
Pointer return type.
Definition: SVecScalarDivExpr.h:176
size_t size() const
Returns the current size/dimension of the vector.
Definition: SVecScalarDivExpr.h:338
Header file for the IsExpression type trait class.
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SVecScalarDivExpr.h:145
Header file for the FunctionTrace class.