35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATSCALARDIVEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATSCALARDIVEXPR_H_
100 class SMatScalarDivExpr :
public SparseMatrix< SMatScalarDivExpr<MT,ST,SO>, SO >
101 ,
private MatScalarDivExpr
102 ,
private Computation
135 template<
typename MT2 >
138 enum { value = useAssign };
407 template<
typename T >
409 return matrix_.canAlias( alias );
419 template<
typename T >
421 return matrix_.isAliased( alias );
445 template<
typename MT2
455 assign( ~lhs, rhs.matrix_ );
456 (~lhs) /= rhs.scalar_;
475 template<
typename MT2
485 assign( ~lhs, rhs.matrix_ );
486 (~lhs) /= rhs.scalar_;
505 template<
typename MT2
507 friend inline typename EnableIf< UseAssign<MT2> >::Type
542 template<
typename MT2
544 friend inline typename EnableIf< UseAssign<MT2> >::Type
617 template<
typename T1
620 inline const typename EnableIf< IsNumeric<T2>,
typename DivExprTrait<T1,T2>::Type >::Type
628 typedef typename ReturnType::RightOperand ScalarType;
631 return ReturnType( ~mat, ScalarType(1)/ScalarType(scalar) );
661 template<
typename MT
665 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST2,ST1>::Type >
666 ,
typename MultExprTrait< SMatScalarDivExpr<MT,ST1,SO>, ST2 >::Type >::Type
667 operator*(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
671 return mat.leftOperand() * ( scalar / mat.rightOperand() );
690 template<
typename ST1
694 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST1,ST2>::Type >
695 ,
typename MultExprTrait< ST1, SMatScalarDivExpr<MT,ST2,SO> >::Type >::Type
696 operator*( ST1 scalar,
const SMatScalarDivExpr<MT,ST2,SO>& mat )
700 return mat.leftOperand() * ( scalar / mat.rightOperand() );
719 template<
typename MT
723 inline const typename EnableIf< IsNumeric<ST2>
724 ,
typename DivExprTrait<MT,typename MultTrait<ST1,ST2>::Type>::Type >::Type
725 operator/(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
731 typedef typename MultTrait<ST1,ST2>::Type MultType;
732 typedef typename DivExprTrait<MT,MultType>::Type
ReturnType;
733 typedef typename ReturnType::RightOperand ScalarType;
735 if( IsMultExpr<ReturnType>::value ) {
736 return ReturnType( mat.leftOperand(), ScalarType(1)/( mat.rightOperand() * scalar ) );
739 return ReturnType( mat.leftOperand(), mat.rightOperand() * scalar );
756 template<
typename MT,
typename ST1,
typename ST2 >
757 struct SMatScalarMultExprTrait< SMatScalarDivExpr<MT,ST1,false>, ST2 >
761 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
765 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
766 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,false>, ST2,
false > T2;
771 typedef typename SelectType< IsSparseMatrix<MT>::value && IsRowMajorMatrix<MT>::value &&
772 IsNumeric<ST1>::value && IsNumeric<ST2>::value
773 ,
typename SelectType<condition,T1,T2>::Type
774 , INVALID_TYPE >::Type Type;
791 template<
typename MT,
typename ST1,
typename ST2 >
792 struct TSMatScalarMultExprTrait< SMatScalarDivExpr<MT,ST1,true>, ST2 >
796 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
800 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
801 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,true>, ST2,
true > T2;
806 typedef typename SelectType< IsSparseMatrix<MT>::value && IsColumnMajorMatrix<MT>::value &&
807 IsNumeric<ST1>::value && IsNumeric<ST2>::value
808 ,
typename SelectType<condition,T1,T2>::Type
809 , INVALID_TYPE >::Type Type;
826 template<
typename MT,
typename ST,
bool SO >
827 struct SubmatrixExprTrait< SMatScalarDivExpr<MT,ST,SO> >
831 typedef typename DivExprTrait< typename SubmatrixExprTrait<const MT>::Type, ST >::Type Type;
848 template<
typename MT,
typename ST,
bool SO >
849 struct RowExprTrait< SMatScalarDivExpr<MT,ST,SO> >
853 typedef typename DivExprTrait< typename RowExprTrait<const MT>::Type, ST >::Type Type;
870 template<
typename MT,
typename ST,
bool SO >
871 struct ColumnExprTrait< SMatScalarDivExpr<MT,ST,SO> >
875 typedef typename DivExprTrait< typename ColumnExprTrait<const MT>::Type, ST >::Type Type;
Pointer difference type of the Blaze library.
Constraint on the data type.
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite data type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:158
#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
DivExprTrait< RN, ST >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: SMatScalarDivExpr.h:121
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
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
PointerType pointer
Pointer return type.
Definition: SMatScalarDivExpr.h:186
Header file for the IsSparseMatrix type trait.
#define BLAZE_CONSTRAINT_MUST_BE_MATRIX_WITH_STORAGE_ORDER(T, SO)
Constraint on the data type.In case the given data type T is not a dense or sparse matrix type and in...
Definition: StorageOrder.h:242
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:196
Header file for the ColumnExprTrait class template.
ConstIterator begin(size_t i) const
Returns an iterator to the first non-zero element of row i.
Definition: SMatScalarDivExpr.h:324
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: SMatScalarDivExpr.h:311
Header file for the IsColumnMajorMatrix type trait.
ValueType value_type
Type of the underlying pointers.
Definition: SMatScalarDivExpr.h:185
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2375
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:248
Header file for the Computation base class.
const Element operator*() const
Direct access to the sparse matrix element at the current iterator position.
Definition: SMatScalarDivExpr.h:216
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatScalarDivExpr.h:148
Header file for the RequiresEvaluation type trait.
MT::ResultType RT
Result type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:106
ConstIterator(IteratorType matrix, RightOperand scalar)
Constructor for the ConstIterator class.
Definition: SMatScalarDivExpr.h:194
Base class for dense matrices.The DenseMatrix class is a base class for all dense matrix classes...
Definition: DenseMatrix.h:70
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes...
Definition: Forward.h:104
ReturnType value() const
Access to the current value of the sparse element.
Definition: SMatScalarDivExpr.h:236
ValueType * PointerType
Pointer return type.
Definition: SMatScalarDivExpr.h:179
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatScalarDivExpr.h:408
Constraint on the data type.
Header file for the SparseMatrix base class.
SMatScalarDivExpr(const MT &matrix, ST scalar)
Constructor for the SMatScalarDivExpr class.
Definition: SMatScalarDivExpr.h:298
Header file for the DivExprTrait class template.
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:428
Evaluation of the resulting expression type of a division.Via this type trait it is possible to evalu...
Definition: DivExprTrait.h:87
Constraint on the data type.
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
ResultType::OppositeType OppositeType
Result type with opposite storage order for expression template evaluations.
Definition: SMatScalarDivExpr.h:147
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:250
Header file for the ValueIndexPair class.
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SMatScalarDivExpr.h:161
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.
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SMatScalarDivExpr.h:177
Header file for the IsFloatingPoint type trait.
Iterator over the elements of the sparse matrix/scalar division expression.
Definition: SMatScalarDivExpr.h:167
RemoveReference< LeftOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:175
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatScalarDivExpr.h:420
Header file for the IsMultExpr type trait class.
MultTrait< RT, ST >::Type ResultType
Result type for expression template evaluations.
Definition: SMatScalarDivExpr.h:146
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2379
IteratorCategory iterator_category
The iterator category.
Definition: SMatScalarDivExpr.h:184
MT::CompositeType CT
Composite type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:108
size_t rows() const
Returns the current number of rows of the matrix.
Definition: SMatScalarDivExpr.h:345
ReferenceType reference
Reference return type.
Definition: SMatScalarDivExpr.h:187
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
DifferenceType difference_type
Difference between two iterators.
Definition: SMatScalarDivExpr.h:188
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatScalarDivExpr.h:386
#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
ResultType::ElementType ElementType
Resulting element type.
Definition: SMatScalarDivExpr.h:149
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:257
#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
Constraints on the storage order of matrix types.
SMatScalarDivExpr< MT, ST, SO > This
Type of this SMatScalarDivExpr instance.
Definition: SMatScalarDivExpr.h:145
Header file for the SelectType class template.
Header file for the RowExprTrait class template.
Header file for all forward declarations for expression class templates.
size_t columns() const
Returns the current number of columns of the matrix.
Definition: SMatScalarDivExpr.h:355
SelectType< useAssign, const ResultType, const SMatScalarDivExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatScalarDivExpr.h:155
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SMatScalarDivExpr.h:152
Header file for the EnableIf class template.
Header file for the BaseElementType type trait.
RightOperand rightOperand() const
Returns the right-hand side scalar operand.
Definition: SMatScalarDivExpr.h:396
Header file for the IsNumeric type trait.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:268
Header file for the SubmatrixExprTrait class template.
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
ValueType & ReferenceType
Reference return type.
Definition: SMatScalarDivExpr.h:180
Header file for run time assertion macros.
size_t index() const
Access to the current index of the sparse element.
Definition: SMatScalarDivExpr.h:246
Utility type for generic codes.
Base template for the MultTrait class.
Definition: MultTrait.h:141
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
Expression object for sparse matrix-scalar divisions.The SMatScalarMult class represents the compile ...
Definition: Forward.h:91
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SMatScalarDivExpr.h:279
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
size_t nonZeros(size_t i) const
Returns the number of non-zero elements in the specified row.
Definition: SMatScalarDivExpr.h:376
ConstIterator & operator++()
Pre-increment operator.
Definition: SMatScalarDivExpr.h:205
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
Element ValueType
Type of the underlying pointers.
Definition: SMatScalarDivExpr.h:178
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
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:287
Header file for the RemoveReference type trait.
IteratorType matrix_
Iterator over the elements of the left-hand side sparse matrix expression.
Definition: SMatScalarDivExpr.h:286
#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
const ConstIterator * operator->() const
Direct access to the sparse matrix element at the current iterator position.
Definition: SMatScalarDivExpr.h:226
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:69
Header file for the IsRowMajorMatrix type trait.
Header file for the IsComputation type trait class.
LeftOperand matrix_
Left-hand side sparse matrix of the division expression.
Definition: SMatScalarDivExpr.h:427
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SMatScalarDivExpr.h:181
#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
Header file for basic type definitions.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse matrix.
Definition: SMatScalarDivExpr.h:365
Header file for the MatScalarDivExpr base class.
ValueIndexPair< ElementType > Element
Element type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:172
ConstIterator end(size_t i) const
Returns an iterator just past the last non-zero element of row i.
Definition: SMatScalarDivExpr.h:335
#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
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional matrix type...
Definition: SparseMatrix.h:79
MT::ReturnType RN
Return type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:107
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.