35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATSCALARDIVEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATSCALARDIVEXPR_H_
107 template<
typename MT
110 class SMatScalarDivExpr :
public SparseMatrix< SMatScalarDivExpr<MT,ST,SO>, SO >
111 ,
private MatScalarDivExpr
112 ,
private Computation
145 template<
typename MT2 >
148 enum { value = useAssign };
161 template<
typename MT2 >
162 struct UseSMPAssign {
163 enum { value = ( !MT2::smpAssignable || !MT::smpAssignable ) && useAssign };
319 enum { smpAssignable = 0 };
476 template<
typename T >
478 return matrix_.canAlias( alias );
488 template<
typename T >
490 return matrix_.isAliased( alias );
514 template<
typename MT2
524 assign( ~lhs, rhs.matrix_ );
525 (~lhs) /= rhs.scalar_;
544 template<
typename MT2
554 assign( ~lhs, rhs.matrix_ );
555 (~lhs) /= rhs.scalar_;
574 template<
typename MT2
576 friend inline typename EnableIf< UseAssign<MT2> >::Type
587 const ResultType tmp(
serial( rhs ) );
611 template<
typename MT2
613 friend inline typename EnableIf< UseAssign<MT2> >::Type
624 const ResultType tmp(
serial( rhs ) );
664 template<
typename MT2
666 friend inline typename EnableIf< UseSMPAssign<MT2> >::Type
677 const ResultType tmp( rhs );
701 template<
typename MT2
703 friend inline typename EnableIf< UseSMPAssign<MT2> >::Type
714 const ResultType tmp( rhs );
776 template<
typename T1
779 inline const typename EnableIf< IsNumeric<T2>,
typename DivExprTrait<T1,T2>::Type >::Type
787 typedef typename ReturnType::RightOperand ScalarType;
790 return ReturnType( ~mat, ScalarType(1)/ScalarType(scalar) );
820 template<
typename MT
824 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST2,ST1>::Type >
825 ,
typename MultExprTrait< SMatScalarDivExpr<MT,ST1,SO>, ST2 >::Type >::Type
826 operator*(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
830 return mat.leftOperand() * ( scalar / mat.rightOperand() );
849 template<
typename ST1
853 inline const typename EnableIf< IsFloatingPoint< typename DivTrait<ST1,ST2>::Type >
854 ,
typename MultExprTrait< ST1, SMatScalarDivExpr<MT,ST2,SO> >::Type >::Type
855 operator*( ST1 scalar,
const SMatScalarDivExpr<MT,ST2,SO>& mat )
859 return mat.leftOperand() * ( scalar / mat.rightOperand() );
878 template<
typename MT
882 inline const typename EnableIf< IsNumeric<ST2>
883 ,
typename DivExprTrait<MT,typename MultTrait<ST1,ST2>::Type>::Type >::Type
884 operator/(
const SMatScalarDivExpr<MT,ST1,SO>& mat, ST2 scalar )
890 typedef typename MultTrait<ST1,ST2>::Type MultType;
891 typedef typename DivExprTrait<MT,MultType>::Type
ReturnType;
892 typedef typename ReturnType::RightOperand ScalarType;
894 if( IsMultExpr<ReturnType>::value ) {
895 return ReturnType( mat.leftOperand(), ScalarType(1)/( mat.rightOperand() * scalar ) );
898 return ReturnType( mat.leftOperand(), mat.rightOperand() * scalar );
915 template<
typename MT,
typename ST,
bool SO >
932 template<
typename MT,
typename ST,
bool SO >
949 template<
typename MT,
typename ST,
bool SO >
950 struct IsSymmetric<
SMatScalarDivExpr<MT,ST,SO> > :
public IsTrue< IsSymmetric<MT>::value >
966 template<
typename MT,
typename ST,
bool SO >
967 struct IsLower<
SMatScalarDivExpr<MT,ST,SO> > :
public IsTrue< IsLower<MT>::value >
983 template<
typename MT,
typename ST,
bool SO >
984 struct IsStrictlyLower<
SMatScalarDivExpr<MT,ST,SO> > :
public IsTrue< IsStrictlyLower<MT>::value >
1000 template<
typename MT,
typename ST,
bool SO >
1001 struct IsUpper<
SMatScalarDivExpr<MT,ST,SO> > :
public IsTrue< IsUpper<MT>::value >
1017 template<
typename MT,
typename ST,
bool SO >
1018 struct IsStrictlyUpper<
SMatScalarDivExpr<MT,ST,SO> > :
public IsTrue< IsStrictlyUpper<MT>::value >
1034 template<
typename MT,
typename ST1,
typename ST2 >
1039 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
1043 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
1044 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,false>, ST2,
false > T2;
1049 typedef typename SelectType< IsSparseMatrix<MT>::value && IsRowMajorMatrix<MT>::value &&
1050 IsNumeric<ST1>::value && IsNumeric<ST2>::value
1051 ,
typename SelectType<condition,T1,T2>::Type
1052 , INVALID_TYPE >::Type Type;
1069 template<
typename MT,
typename ST1,
typename ST2 >
1074 enum { condition = IsFloatingPoint<typename DivTrait<ST1,ST2>::Type>::value };
1078 typedef typename SMatScalarMultExprTrait<MT,typename DivTrait<ST1,ST2>::Type>::Type T1;
1079 typedef SMatScalarMultExpr< SMatScalarDivExpr<MT,ST1,true>, ST2,
true > T2;
1084 typedef typename SelectType< IsSparseMatrix<MT>::value && IsColumnMajorMatrix<MT>::value &&
1085 IsNumeric<ST1>::value && IsNumeric<ST2>::value
1086 ,
typename SelectType<condition,T1,T2>::Type
1087 , INVALID_TYPE >::Type Type;
1104 template<
typename MT,
typename ST,
bool SO,
bool AF >
1109 typedef typename DivExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type, ST >::Type Type;
1126 template<
typename MT,
typename ST,
bool SO >
1131 typedef typename DivExprTrait< typename RowExprTrait<const MT>::Type, ST >::Type Type;
1148 template<
typename MT,
typename ST,
bool SO >
1153 typedef typename DivExprTrait< typename ColumnExprTrait<const MT>::Type, ST >::Type Type;
IteratorType matrix_
Iterator over the elements of the left-hand side sparse matrix expression.
Definition: SMatScalarDivExpr.h:311
Pointer difference type of the Blaze library.
ConstIterator(IteratorType matrix, RightOperand scalar)
Constructor for the ConstIterator class.
Definition: SMatScalarDivExpr.h:219
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
Header file for the Rows type trait.
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:8247
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:939
PointerType pointer
Pointer return type.
Definition: SMatScalarDivExpr.h:211
Header file for basic type definitions.
MT::ReturnType RN
Return type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:117
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
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatScalarDivExpr.h:173
Header file for the IsSparseMatrix type trait.
ResultType::OppositeType OppositeType
Result type with opposite storage order for expression template evaluations.
Definition: SMatScalarDivExpr.h:172
#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:209
Header file for the ColumnExprTrait class template.
size_t rows() const
Returns the current number of rows of the matrix.
Definition: SMatScalarDivExpr.h:375
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatScalarDivExpr.h:477
Header file for the IsColumnMajorMatrix type trait.
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatScalarDivExpr.h:489
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SMatScalarDivExpr.h:304
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2507
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:261
MT::CompositeType CT
Composite type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:118
ST RightOperand
Composite type of the right-hand side scalar value.
Definition: SMatScalarDivExpr.h:186
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:699
ConstIterator upperBound(size_t i, size_t j) const
Returns an iterator to the first index greater then the given index.
Definition: SMatScalarDivExpr.h:444
Header file for the Computation base class.
ConstIterator lowerBound(size_t i, size_t j) const
Returns an iterator to the first index not less then the given index.
Definition: SMatScalarDivExpr.h:431
Header file for the RequiresEvaluation type trait.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:293
SMatScalarDivExpr(const MT &matrix, ST scalar)
Constructor for the SMatScalarDivExpr class.
Definition: SMatScalarDivExpr.h:328
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
ValueType * PointerType
Pointer return type.
Definition: SMatScalarDivExpr.h:204
Constraint on the data type.
const ConstIterator * operator->() const
Direct access to the sparse matrix element at the current iterator position.
Definition: SMatScalarDivExpr.h:251
size_t nonZeros() const
Returns the number of non-zero elements in the sparse matrix.
Definition: SMatScalarDivExpr.h:395
Header file for the SparseMatrix base class.
Header file for the DivExprTrait class template.
RemoveReference< LeftOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:200
Evaluation of the resulting expression type of a division.Via this type trait it is possible to evalu...
Definition: DivExprTrait.h:88
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
ReferenceType reference
Reference return type.
Definition: SMatScalarDivExpr.h:212
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:263
ConstIterator end(size_t i) const
Returns an iterator just past the last non-zero element of row i.
Definition: SMatScalarDivExpr.h:365
Header file for the ValueIndexPair class.
IteratorCategory iterator_category
The iterator category.
Definition: SMatScalarDivExpr.h:209
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.
Header file for the IsStrictlyUpper type trait.
Header file for the IsSymmetric type trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
ReturnType value() const
Access to the current value of the sparse element.
Definition: SMatScalarDivExpr.h:261
Element ValueType
Type of the underlying pointers.
Definition: SMatScalarDivExpr.h:203
Header file for the IsFloatingPoint type trait.
ConstIterator begin(size_t i) const
Returns an iterator to the first non-zero element of row i.
Definition: SMatScalarDivExpr.h:354
Iterator over the elements of the sparse matrix/scalar division expression.
Definition: SMatScalarDivExpr.h:192
MultTrait< RT, ST >::Type ResultType
Result type for expression template evaluations.
Definition: SMatScalarDivExpr.h:171
Header file for the IsMultExpr type trait class.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2511
BLAZE_ALWAYS_INLINE 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:635
Header file for the Columns type trait.
SMatScalarDivExpr< MT, ST, SO > This
Type of this SMatScalarDivExpr instance.
Definition: SMatScalarDivExpr.h:170
#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
Header file for the IsLower type trait.
LeftOperand matrix_
Left-hand side sparse matrix of the division expression.
Definition: SMatScalarDivExpr.h:496
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SMatScalarDivExpr.h:282
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SMatScalarDivExpr.h:206
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:312
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SMatScalarDivExpr.h:177
#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
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatScalarDivExpr.h:455
Constraints on the storage order of matrix types.
const Element operator*() const
Direct access to the sparse matrix element at the current iterator position.
Definition: SMatScalarDivExpr.h:241
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite data type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:183
ResultType::ElementType ElementType
Resulting element type.
Definition: SMatScalarDivExpr.h:174
Constraint on the data type.
Header file for the SelectType class template.
Header file for the RowExprTrait class template.
Header file for all forward declarations for expression class templates.
Header file for the EnableIf class template.
Header file for the IsStrictlyLower type trait.
Header file for the serial shim.
Header file for the BaseElementType type trait.
Header file for the IsNumeric type trait.
MT::ResultType RT
Result type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:116
EnableIf< IsDenseMatrix< MT1 > >::Type 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 SubmatrixExprTrait class template.
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2506
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
ValueType value_type
Type of the underlying pointers.
Definition: SMatScalarDivExpr.h:210
Header file for run time assertion macros.
Utility type for generic codes.
Base template for the MultTrait class.
Definition: MultTrait.h:150
BLAZE_ALWAYS_INLINE 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:742
Header file for the division trait.
ConstIterator & operator++()
Pre-increment operator.
Definition: SMatScalarDivExpr.h:230
Expression object for sparse matrix-scalar divisions.The SMatScalarMult class represents the compile ...
Definition: Forward.h:93
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
ConstIterator find(size_t i, size_t j) const
Searches for a specific matrix element.
Definition: SMatScalarDivExpr.h:418
RightOperand rightOperand() const
Returns the right-hand side scalar operand.
Definition: SMatScalarDivExpr.h:465
#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:118
Header file for the RemoveReference type trait.
#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
ValueIndexPair< ElementType > Element
Element type of the sparse matrix expression.
Definition: SMatScalarDivExpr.h:197
ValueType & ReferenceType
Reference return type.
Definition: SMatScalarDivExpr.h:205
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:70
Header file for the IsRowMajorMatrix type trait.
Header file for the IsComputation type trait class.
size_t columns() const
Returns the current number of columns of the matrix.
Definition: SMatScalarDivExpr.h:385
SelectType< useAssign, const ResultType, const SMatScalarDivExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatScalarDivExpr.h:180
EnableIf< IsDenseMatrix< MT1 > >::Type 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
#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:2502
Header file for the IsTrue value trait.
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SMatScalarDivExpr.h:202
RightOperand scalar_
Right-hand side scalar of the division expression.
Definition: SMatScalarDivExpr.h:497
DivExprTrait< RN, ST >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: SMatScalarDivExpr.h:131
Header file for the IsUpper type trait.
Header file for the MatScalarDivExpr base class.
size_t nonZeros(size_t i) const
Returns the number of non-zero elements in the specified row.
Definition: SMatScalarDivExpr.h:406
DifferenceType difference_type
Difference between two iterators.
Definition: SMatScalarDivExpr.h:213
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
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
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.
BLAZE_ALWAYS_INLINE 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:849
size_t index() const
Access to the current index of the sparse element.
Definition: SMatScalarDivExpr.h:271