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 };
152 template<
typename MT2 >
153 struct UseSMPAssign {
154 enum { value = ( !MT2::smpAssignable || !MT::smpAssignable ) && useAssign };
310 enum { smpAssignable = 0 };
428 template<
typename T >
430 return matrix_.canAlias( alias );
440 template<
typename T >
442 return matrix_.isAliased( alias );
466 template<
typename MT2
476 assign( ~lhs, rhs.matrix_ );
477 (~lhs) /= rhs.scalar_;
496 template<
typename MT2
506 assign( ~lhs, rhs.matrix_ );
507 (~lhs) /= rhs.scalar_;
526 template<
typename MT2
528 friend inline typename EnableIf< UseAssign<MT2> >::Type
563 template<
typename MT2
565 friend inline typename EnableIf< UseAssign<MT2> >::Type
616 template<
typename MT2
618 friend inline typename EnableIf< UseSMPAssign<MT2> >::Type
653 template<
typename MT2
655 friend inline typename EnableIf< UseSMPAssign<MT2> >::Type
728 template<
typename T1
731 inline const typename EnableIf< IsNumeric<T2>,
typename DivExprTrait<T1,T2>::Type >::Type
739 typedef typename ReturnType::RightOperand ScalarType;
742 return ReturnType( ~mat, ScalarType(1)/ScalarType(scalar) );
772 template<
typename MT
776 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST2,ST1>::Type >
777 ,
typename MultExprTrait< SMatScalarDivExpr<MT,ST1,SO>, ST2 >::Type >::Type
778 operator*(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
782 return mat.leftOperand() * ( scalar / mat.rightOperand() );
801 template<
typename ST1
805 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST1,ST2>::Type >
806 ,
typename MultExprTrait< ST1, SMatScalarDivExpr<MT,ST2,SO> >::Type >::Type
807 operator*( ST1 scalar,
const SMatScalarDivExpr<MT,ST2,SO>& mat )
811 return mat.leftOperand() * ( scalar / mat.rightOperand() );
830 template<
typename MT
834 inline const typename EnableIf< IsNumeric<ST2>
835 ,
typename DivExprTrait<MT,typename MultTrait<ST1,ST2>::Type>::Type >::Type
836 operator/(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
842 typedef typename MultTrait<ST1,ST2>::Type MultType;
843 typedef typename DivExprTrait<MT,MultType>::Type
ReturnType;
844 typedef typename ReturnType::RightOperand ScalarType;
846 if( IsMultExpr<ReturnType>::value ) {
847 return ReturnType( mat.leftOperand(), ScalarType(1)/( mat.rightOperand() * scalar ) );
850 return ReturnType( mat.leftOperand(), mat.rightOperand() * scalar );
867 template<
typename MT,
typename ST1,
typename ST2 >
872 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
876 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
877 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,false>, ST2,
false > T2;
882 typedef typename SelectType< IsSparseMatrix<MT>::value && IsRowMajorMatrix<MT>::value &&
883 IsNumeric<ST1>::value && IsNumeric<ST2>::value
884 ,
typename SelectType<condition,T1,T2>::Type
885 , INVALID_TYPE >::Type Type;
902 template<
typename MT,
typename ST1,
typename ST2 >
907 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
911 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
912 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,true>, ST2,
true > T2;
917 typedef typename SelectType< IsSparseMatrix<MT>::value && IsColumnMajorMatrix<MT>::value &&
918 IsNumeric<ST1>::value && IsNumeric<ST2>::value
919 ,
typename SelectType<condition,T1,T2>::Type
920 , INVALID_TYPE >::Type Type;
937 template<
typename MT,
typename ST,
bool SO,
bool AF >
942 typedef typename DivExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type, ST >::Type Type;
959 template<
typename MT,
typename ST,
bool SO >
964 typedef typename DivExprTrait< typename RowExprTrait<const MT>::Type, ST >::Type Type;
981 template<
typename MT,
typename ST,
bool SO >
986 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:174
#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:4329
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:930
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:152
PointerType pointer
Pointer return type.
Definition: SMatScalarDivExpr.h:202
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:199
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:345
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: SMatScalarDivExpr.h:332
Header file for the IsColumnMajorMatrix type trait.
ValueType value_type
Type of the underlying pointers.
Definition: SMatScalarDivExpr.h:201
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2408
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:251
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:690
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:232
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatScalarDivExpr.h:164
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:210
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:107
ReturnType value() const
Access to the current value of the sparse element.
Definition: SMatScalarDivExpr.h:252
ValueType * PointerType
Pointer return type.
Definition: SMatScalarDivExpr.h:195
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatScalarDivExpr.h:429
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:319
Header file for the DivExprTrait class template.
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:449
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:122
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:163
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:253
Header file for the ValueIndexPair class.
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SMatScalarDivExpr.h:177
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:193
Header file for the IsFloatingPoint type trait.
Iterator over the elements of the sparse matrix/scalar division expression.
Definition: SMatScalarDivExpr.h:183
RemoveReference< LeftOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:191
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatScalarDivExpr.h:441
Header file for the IsMultExpr type trait class.
MultTrait< RT, ST >::Type ResultType
Result type for expression template evaluations.
Definition: SMatScalarDivExpr.h:162
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2412
IteratorCategory iterator_category
The iterator category.
Definition: SMatScalarDivExpr.h:200
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:366
ReferenceType reference
Reference return type.
Definition: SMatScalarDivExpr.h:203
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:271
DifferenceType difference_type
Difference between two iterators.
Definition: SMatScalarDivExpr.h:204
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatScalarDivExpr.h:407
#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:165
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:273
#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:161
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:376
SelectType< useAssign, const ResultType, const SMatScalarDivExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatScalarDivExpr.h:171
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SMatScalarDivExpr.h:168
Header file for the EnableIf class template.
Header file for the serial shim.
Header file for the BaseElementType type trait.
RightOperand rightOperand() const
Returns the right-hand side scalar operand.
Definition: SMatScalarDivExpr.h:417
Header file for the IsNumeric type trait.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:284
Header file for the SubmatrixExprTrait class template.
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2407
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:196
Header file for run time assertion macros.
size_t index() const
Access to the current index of the sparse element.
Definition: SMatScalarDivExpr.h:262
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:301
Expression object for sparse matrix-scalar divisions.The SMatScalarMult class represents the compile ...
Definition: Forward.h:93
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SMatScalarDivExpr.h:295
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:397
ConstIterator & operator++()
Pre-increment operator.
Definition: SMatScalarDivExpr.h:221
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:194
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:331
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:303
Header file for the RemoveReference type trait.
IteratorType matrix_
Iterator over the elements of the left-hand side sparse matrix expression.
Definition: SMatScalarDivExpr.h:302
#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:242
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:448
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SMatScalarDivExpr.h:197
#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:2403
Header file for basic type definitions.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse matrix.
Definition: SMatScalarDivExpr.h:386
Header file for the MatScalarDivExpr base class.
ValueIndexPair< ElementType > Element
Element type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:188
ConstIterator end(size_t i) const
Returns an iterator just past the last non-zero element of row i.
Definition: SMatScalarDivExpr.h:356
#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.