35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATTRANSEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_SMATTRANSEXPR_H_ 86 :
public MatTransExpr< SparseMatrix< SMatTransExpr<MT,SO>, SO > >
87 ,
private If< IsComputation_v<MT>, Computation, Transformation >::Type
106 static constexpr
bool useAssign = RequiresEvaluation_v<MT>;
109 template<
typename MT2 >
111 static constexpr
bool UseAssign_v =
useAssign;
123 template<
typename MT2 >
124 static constexpr
bool UseSMPAssign_v = ( MT2::smpAssignable &&
useAssign );
186 if( i >=
sm_.columns() ) {
189 if( j >=
sm_.rows() ) {
223 inline size_t rows() const noexcept {
224 return sm_.columns();
244 return sm_.nonZeros();
255 return sm_.nonZeros( i );
268 return sm_.find( j, i );
281 return sm_.lowerBound( j, i );
294 return sm_.upperBound( j, i );
314 template<
typename T >
315 inline bool canAlias(
const T* alias )
const noexcept {
316 return sm_.isAliased( alias );
326 template<
typename T >
327 inline bool isAliased(
const T* alias )
const noexcept {
328 return sm_.isAliased( alias );
338 return sm_.canSMPAssign();
361 template<
typename MT2
372 assign( tmp, rhs.sm_ );
391 template<
typename MT2
402 assign( tmp, rhs.sm_ );
421 template<
typename MT2
423 friend inline auto addAssign( DenseMatrix<MT2,SO2>& lhs,
const SMatTransExpr& rhs )
424 -> EnableIf_t< UseAssign_v<MT2> >
431 DMatTransposer<MT2,!SO2> tmp( ~lhs );
432 addAssign( tmp, rhs.sm_ );
455 template<
typename MT2
457 friend inline auto subAssign( DenseMatrix<MT2,SO2>& lhs,
const SMatTransExpr& rhs )
458 -> EnableIf_t< UseAssign_v<MT2> >
465 DMatTransposer<MT2,!SO2> tmp( ~lhs );
466 subAssign( tmp, rhs.sm_ );
489 template<
typename MT2
491 friend inline auto schurAssign( DenseMatrix<MT2,SO2>& lhs,
const SMatTransExpr& rhs )
492 -> EnableIf_t< UseAssign_v<MT2> >
499 DMatTransposer<MT2,!SO2> tmp( ~lhs );
500 schurAssign( tmp, rhs.sm_ );
531 template<
typename MT2
534 -> EnableIf_t< UseSMPAssign_v<MT2> >
541 DMatTransposer<MT2,!SO2> tmp( ~lhs );
561 template<
typename MT2
564 -> EnableIf_t< UseSMPAssign_v<MT2> >
571 SMatTransposer<MT2,!SO2> tmp( ~lhs );
591 template<
typename MT2
594 -> EnableIf_t< UseSMPAssign_v<MT2> >
601 DMatTransposer<MT2,!SO2> tmp( ~lhs );
626 template<
typename MT2
629 -> EnableIf_t< UseSMPAssign_v<MT2> >
636 DMatTransposer<MT2,!SO2> tmp( ~lhs );
661 template<
typename MT2
664 -> EnableIf_t< UseSMPAssign_v<MT2> >
671 DMatTransposer<MT2,!SO2> tmp( ~lhs );
726 template<
typename MT
733 return ReturnType( ~sm );
766 template<
typename MT
768 inline decltype(
auto)
trans( const SMatTransExpr<MT,SO>& sm )
790 template<
typename MT
793 inline decltype(
auto)
trans( const SMatScalarMultExpr<MT,ST,SO>& sm )
797 return trans( sm.leftOperand() ) * sm.rightOperand();
size_t nonZeros(size_t i) const
Returns the number of non-zero elements in the specified row/column.
Definition: SMatTransExpr.h:254
Header file for the sparse matrix transposer.
Header file for auxiliary alias declarations.
Header file for basic type definitions.
ElementType_t< MT > ElementType
Resulting element type.
Definition: SMatTransExpr.h:135
typename If< Condition, T1, T2 >::Type If_t
Auxiliary alias template for the If class template.The If_t alias template provides a convenient shor...
Definition: If.h:109
typename T::ResultType ResultType_t
Alias declaration for nested ResultType type definitions.The ResultType_t alias declaration provides ...
Definition: Aliases.h:390
size_t nonZeros() const
Returns the number of non-zero elements in the sparse matrix.
Definition: SMatTransExpr.h:243
ReturnType at(size_t i, size_t j) const
Checked access to the matrix elements.
Definition: SMatTransExpr.h:185
#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:63
SMatTransExpr(const MT &sm) noexcept
Constructor for the SMatTransExpr class.
Definition: SMatTransExpr.h:158
Header file for the MatTransExpr base class.
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: SMatTransExpr.h:170
Header file for the Computation base class.
ResultType_t< MT > RT
Result type of the sparse matrix expression.
Definition: SMatTransExpr.h:91
Header file for the RequiresEvaluation type trait.
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.The ReturnType_t alias declaration provides ...
Definition: Aliases.h:410
Base class for dense matrices.The DenseMatrix class is a base class for all dense matrix classes....
Definition: DenseMatrix.h:81
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes....
Definition: Forward.h:145
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.The ElementType_t alias declaration provide...
Definition: Aliases.h:170
OppositeType_t< ResultType > OppositeType
Result type with opposite storage order for expression template evaluations.
Definition: SMatTransExpr.h:133
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SMatTransExpr.h:327
bool canSMPAssign() const noexcept
Returns whether the expression can be used in SMP assignments.
Definition: SMatTransExpr.h:337
Header file for the SparseMatrix base class.
Constraint on the data type.
TransposeType_t< MT > ResultType
Result type for expression template evaluations.
Definition: SMatTransExpr.h:132
typename EnableIf< Condition, T >::Type EnableIf_t
Auxiliary type for the EnableIf class template.The EnableIf_t alias declaration provides a convenient...
Definition: EnableIf.h:138
Operand sm_
Sparse matrix of the transposition expression.
Definition: SMatTransExpr.h:344
size_t columns() const noexcept
Returns the current number of columns of the matrix.
Definition: SMatTransExpr.h:233
ConstIterator begin(size_t i) const
Returns an iterator to the first non-zero element of row/column i.
Definition: SMatTransExpr.h:202
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the If class template.
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: SMatTransExpr.h:150
GetConstIterator_t< MT > ConstIterator
Iterator over the elements of the sparse matrix.
Definition: SMatTransExpr.h:142
#define BLAZE_THROW_OUT_OF_RANGE(MESSAGE)
Macro for the emission of a std::out_of_range exception.This macro encapsulates the default way of Bl...
Definition: Exception.h:331
Expression object for the transposition of a dense matrix.The DMatTransposer class is a wrapper objec...
Definition: DMatTransposer.h:77
ConstIterator upperBound(size_t i, size_t j) const
Returns an iterator to the first index greater then the given index.
Definition: SMatTransExpr.h:292
Header file for the GetMemberType type trait.
Constraints on the storage order of matrix types.
Header file for the exception macros of the math module.
Constraint on the data type.
Header file for the EnableIf class template.
typename T::OppositeType OppositeType_t
Alias declaration for nested OppositeType type definitions.The OppositeType_t alias declaration provi...
Definition: Aliases.h:270
Header file for the dense matrix transposer.
Expression object for the transposition of a sparse matrix.The SMatTransposer class is a wrapper obje...
Definition: Forward.h:139
ConstIterator find(size_t i, size_t j) const
Searches for a specific matrix element.
Definition: SMatTransExpr.h:266
typename T::TransposeType TransposeType_t
Alias declaration for nested TransposeType type definitions.The TransposeType_t alias declaration pro...
Definition: Aliases.h:470
Header file for run time assertion macros.
typename T::CompositeType CompositeType_t
Alias declaration for nested CompositeType type definitions.The CompositeType_t alias declaration pro...
Definition: Aliases.h:90
Utility type for generic codes.
auto smpAddAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:131
ConstIterator end(size_t i) const
Returns an iterator just past the last non-zero element of row/column i.
Definition: SMatTransExpr.h:213
ResultType_t< MT > TransposeType
Transpose type for expression template evaluations.
Definition: SMatTransExpr.h:134
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:94
Header file for all forward declarations for expression class templates.
auto smpAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:100
CompositeType_t< MT > CT
Composite type of the sparse matrix expression.
Definition: SMatTransExpr.h:92
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SMatTransExpr.h:315
#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:81
auto smpSchurAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP Schur product assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:194
Operand operand() const noexcept
Returns the sparse matrix operand.
Definition: SMatTransExpr.h:303
ConstIterator lowerBound(size_t i, size_t j) const
Returns an iterator to the first index not less then the given index.
Definition: SMatTransExpr.h:279
decltype(auto) trans(const DenseMatrix< MT, SO > &dm)
Calculation of the transpose of the given dense matrix.
Definition: DMatTransExpr.h:765
If_t< useAssign, const ResultType, const SMatTransExpr & > CompositeType
Data type for composite expression templates.
Definition: SMatTransExpr.h:139
Header file for the IsComputation type trait class.
auto smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:162
Expression object for sparse matrix transpositions.The SMatTransExpr class represents the compile tim...
Definition: Forward.h:138
ReturnType_t< MT > ReturnType
Return type for expression template evaluations.
Definition: SMatTransExpr.h:136
size_t rows() const noexcept
Returns the current number of rows of the matrix.
Definition: SMatTransExpr.h:223
static constexpr bool useAssign
Compilation switch for the serial evaluation strategy of the transposition expression.
Definition: SMatTransExpr.h:106
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.In case of an invalid run time expression,...
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:61
Header file for the IsExpression type trait class.
Header file for the function trace functionality.
BLAZE_CREATE_GET_TYPE_MEMBER_TYPE_TRAIT(GetConstIterator, ConstIterator, INVALID_TYPE)
Definition of the GetConstIterator type trait.
If_t< IsExpression_v< MT >, const MT, const MT & > Operand
Composite data type of the sparse matrix expression.
Definition: SMatTransExpr.h:145