35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATSCALARDIVEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATSCALARDIVEXPR_H_
101 class SMatScalarDivExpr :
public SparseMatrix< SMatScalarDivExpr<MT,ST,SO>, SO >
102 ,
private MatScalarDivExpr
103 ,
private Computation
136 template<
typename MT2 >
139 enum { value = useAssign };
295 enum { smpAssignable = 0 };
413 template<
typename T >
415 return matrix_.canAlias( alias );
425 template<
typename T >
427 return matrix_.isAliased( alias );
451 template<
typename MT2
461 assign( ~lhs, rhs.matrix_ );
462 (~lhs) /= rhs.scalar_;
481 template<
typename MT2
491 assign( ~lhs, rhs.matrix_ );
492 (~lhs) /= rhs.scalar_;
511 template<
typename MT2
513 friend inline typename EnableIf< UseAssign<MT2> >::Type
548 template<
typename MT2
550 friend inline typename EnableIf< UseAssign<MT2> >::Type
623 template<
typename T1
626 inline const typename EnableIf< IsNumeric<T2>,
typename DivExprTrait<T1,T2>::Type >::Type
634 typedef typename ReturnType::RightOperand ScalarType;
637 return ReturnType( ~mat, ScalarType(1)/ScalarType(scalar) );
667 template<
typename MT
671 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST2,ST1>::Type >
672 ,
typename MultExprTrait< SMatScalarDivExpr<MT,ST1,SO>, ST2 >::Type >::Type
673 operator*(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
677 return mat.leftOperand() * ( scalar / mat.rightOperand() );
696 template<
typename ST1
700 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST1,ST2>::Type >
701 ,
typename MultExprTrait< ST1, SMatScalarDivExpr<MT,ST2,SO> >::Type >::Type
702 operator*( ST1 scalar,
const SMatScalarDivExpr<MT,ST2,SO>& mat )
706 return mat.leftOperand() * ( scalar / mat.rightOperand() );
725 template<
typename MT
729 inline const typename EnableIf< IsNumeric<ST2>
730 ,
typename DivExprTrait<MT,typename MultTrait<ST1,ST2>::Type>::Type >::Type
731 operator/(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
737 typedef typename MultTrait<ST1,ST2>::Type MultType;
738 typedef typename DivExprTrait<MT,MultType>::Type
ReturnType;
739 typedef typename ReturnType::RightOperand ScalarType;
741 if( IsMultExpr<ReturnType>::value ) {
742 return ReturnType( mat.leftOperand(), ScalarType(1)/( mat.rightOperand() * scalar ) );
745 return ReturnType( mat.leftOperand(), mat.rightOperand() * scalar );
762 template<
typename MT,
typename ST1,
typename ST2 >
763 struct SMatScalarMultExprTrait< SMatScalarDivExpr<MT,ST1,false>, ST2 >
767 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
771 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
772 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,false>, ST2,
false > T2;
777 typedef typename SelectType< IsSparseMatrix<MT>::value && IsRowMajorMatrix<MT>::value &&
778 IsNumeric<ST1>::value && IsNumeric<ST2>::value
779 ,
typename SelectType<condition,T1,T2>::Type
780 , INVALID_TYPE >::Type Type;
797 template<
typename MT,
typename ST1,
typename ST2 >
798 struct TSMatScalarMultExprTrait< SMatScalarDivExpr<MT,ST1,true>, ST2 >
802 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
806 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
807 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,true>, ST2,
true > T2;
812 typedef typename SelectType< IsSparseMatrix<MT>::value && IsColumnMajorMatrix<MT>::value &&
813 IsNumeric<ST1>::value && IsNumeric<ST2>::value
814 ,
typename SelectType<condition,T1,T2>::Type
815 , INVALID_TYPE >::Type Type;
832 template<
typename MT,
typename ST,
bool SO,
bool AF >
833 struct SubmatrixExprTrait< SMatScalarDivExpr<MT,ST,SO>, AF >
837 typedef typename DivExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type, ST >::Type Type;
854 template<
typename MT,
typename ST,
bool SO >
855 struct RowExprTrait< SMatScalarDivExpr<MT,ST,SO> >
859 typedef typename DivExprTrait< typename RowExprTrait<const MT>::Type, ST >::Type Type;
876 template<
typename MT,
typename ST,
bool SO >
877 struct ColumnExprTrait< SMatScalarDivExpr<MT,ST,SO> >
881 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:159
#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:122
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:4075
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:772
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
void smpSubAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:151
PointerType pointer
Pointer return type.
Definition: SMatScalarDivExpr.h:187
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:197
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:330
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: SMatScalarDivExpr.h:317
Header file for the IsColumnMajorMatrix type trait.
ValueType value_type
Type of the underlying pointers.
Definition: SMatScalarDivExpr.h:186
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2384
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:249
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:217
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatScalarDivExpr.h:149
Header file for the RequiresEvaluation type trait.
MT::ResultType RT
Result type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:107
ConstIterator(IteratorType matrix, RightOperand scalar)
Constructor for the ConstIterator class.
Definition: SMatScalarDivExpr.h:195
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:237
ValueType * PointerType
Pointer return type.
Definition: SMatScalarDivExpr.h:180
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatScalarDivExpr.h:414
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:304
Header file for the DivExprTrait class template.
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:434
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.
void smpAddAssign(DenseMatrix< 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:121
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:148
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:251
Header file for the ValueIndexPair class.
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SMatScalarDivExpr.h:162
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:178
Header file for the IsFloatingPoint type trait.
Iterator over the elements of the sparse matrix/scalar division expression.
Definition: SMatScalarDivExpr.h:168
RemoveReference< LeftOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:176
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatScalarDivExpr.h:426
Header file for the IsMultExpr type trait class.
MultTrait< RT, ST >::Type ResultType
Result type for expression template evaluations.
Definition: SMatScalarDivExpr.h:147
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2388
IteratorCategory iterator_category
The iterator category.
Definition: SMatScalarDivExpr.h:185
MT::CompositeType CT
Composite type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:109
size_t rows() const
Returns the current number of rows of the matrix.
Definition: SMatScalarDivExpr.h:351
Header file for the dense matrix SMP implementation.
ReferenceType reference
Reference return type.
Definition: SMatScalarDivExpr.h:188
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:189
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatScalarDivExpr.h:392
#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:150
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:258
#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:146
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:361
SelectType< useAssign, const ResultType, const SMatScalarDivExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatScalarDivExpr.h:156
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SMatScalarDivExpr.h:153
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:402
Header file for the IsNumeric type trait.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:269
Header file for the SubmatrixExprTrait class template.
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2383
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:181
Header file for run time assertion macros.
size_t index() const
Access to the current index of the sparse element.
Definition: SMatScalarDivExpr.h:247
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:280
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:382
ConstIterator & operator++()
Pre-increment operator.
Definition: SMatScalarDivExpr.h:206
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:179
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:288
Header file for the RemoveReference type trait.
IteratorType matrix_
Iterator over the elements of the left-hand side sparse matrix expression.
Definition: SMatScalarDivExpr.h:287
#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:227
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:433
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SMatScalarDivExpr.h:182
#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:2379
Header file for basic type definitions.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse matrix.
Definition: SMatScalarDivExpr.h:371
Header file for the MatScalarDivExpr base class.
ValueIndexPair< ElementType > Element
Element type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:173
ConstIterator end(size_t i) const
Returns an iterator just past the last non-zero element of row i.
Definition: SMatScalarDivExpr.h:341
#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:108
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.