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DMatDMatSubExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_EXPRESSIONS_DMATDMATSUBEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_DMATDMATSUBEXPR_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <stdexcept>
50 #include <blaze/math/Intrinsics.h>
59 #include <blaze/util/Assert.h>
61 #include <blaze/util/EnableIf.h>
63 #include <blaze/util/SelectType.h>
64 #include <blaze/util/Types.h>
66 
67 
68 namespace blaze {
69 
70 //=================================================================================================
71 //
72 // CLASS DMATDMATSUBEXPR
73 //
74 //=================================================================================================
75 
76 //*************************************************************************************************
83 template< typename MT1 // Type of the left-hand side dense matrix
84  , typename MT2 // Type of the right-hand side dense matrix
85  , bool SO > // Storage order
86 class DMatDMatSubExpr : public DenseMatrix< DMatDMatSubExpr<MT1,MT2,SO>, SO >
87  , private MatMatSubExpr
88  , private Computation
89 {
90  private:
91  //**Type definitions****************************************************************************
92  typedef typename MT1::ResultType RT1;
93  typedef typename MT2::ResultType RT2;
94  typedef typename MT1::ReturnType RN1;
95  typedef typename MT2::ReturnType RN2;
96  typedef typename MT1::CompositeType CT1;
97  typedef typename MT2::CompositeType CT2;
98  typedef typename MT1::ElementType ET1;
99  typedef typename MT2::ElementType ET2;
100  //**********************************************************************************************
101 
102  //**Return type evaluation**********************************************************************
104 
109  enum { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value };
110 
113  //**********************************************************************************************
114 
115  //**Evaluation strategy*************************************************************************
117 
123  enum { useAssign = RequiresEvaluation<MT1>::value || RequiresEvaluation<MT2>::value || !returnExpr };
124 
126  template< typename VT >
128  struct UseAssign {
129  enum { value = useAssign };
130  };
132  //**********************************************************************************************
133 
134  public:
135  //**Type definitions****************************************************************************
142 
145 
148 
150  typedef typename SelectType< IsExpression<MT1>::value, const MT1, const MT1& >::Type LeftOperand;
151 
153  typedef typename SelectType< IsExpression<MT2>::value, const MT2, const MT2& >::Type RightOperand;
154  //**********************************************************************************************
155 
156  //**ConstIterator class definition**************************************************************
160  {
161  public:
162  //**Type definitions*************************************************************************
163  typedef std::random_access_iterator_tag IteratorCategory;
168 
169  // STL iterator requirements
175 
178 
181  //*******************************************************************************************
182 
183  //**Constructor******************************************************************************
189  explicit inline ConstIterator( LeftIteratorType left, RightIteratorType right )
190  : left_ ( left ) // Iterator to the current left-hand side element
191  , right_( right ) // Iterator to the current right-hand side element
192  {}
193  //*******************************************************************************************
194 
195  //**Addition assignment operator*************************************************************
201  inline ConstIterator& operator+=( size_t inc ) {
202  left_ += inc;
203  right_ += inc;
204  return *this;
205  }
206  //*******************************************************************************************
207 
208  //**Subtraction assignment operator**********************************************************
214  inline ConstIterator& operator-=( size_t dec ) {
215  left_ -= dec;
216  right_ -= dec;
217  return *this;
218  }
219  //*******************************************************************************************
220 
221  //**Prefix increment operator****************************************************************
227  ++left_;
228  ++right_;
229  return *this;
230  }
231  //*******************************************************************************************
232 
233  //**Postfix increment operator***************************************************************
238  inline const ConstIterator operator++( int ) {
239  return ConstIterator( left_++, right_++ );
240  }
241  //*******************************************************************************************
242 
243  //**Prefix decrement operator****************************************************************
249  --left_;
250  --right_;
251  return *this;
252  }
253  //*******************************************************************************************
254 
255  //**Postfix decrement operator***************************************************************
260  inline const ConstIterator operator--( int ) {
261  return ConstIterator( left_--, right_-- );
262  }
263  //*******************************************************************************************
264 
265  //**Element access operator******************************************************************
270  inline ReturnType operator*() const {
271  return (*left_) - (*right_);
272  }
273  //*******************************************************************************************
274 
275  //**Load function****************************************************************************
280  inline IntrinsicType load() const {
281  return left_.load() - right_.load();
282  }
283  //*******************************************************************************************
284 
285  //**Equality operator************************************************************************
291  inline bool operator==( const ConstIterator& rhs ) const {
292  return left_ == rhs.left_;
293  }
294  //*******************************************************************************************
295 
296  //**Inequality operator**********************************************************************
302  inline bool operator!=( const ConstIterator& rhs ) const {
303  return left_ != rhs.left_;
304  }
305  //*******************************************************************************************
306 
307  //**Less-than operator***********************************************************************
313  inline bool operator<( const ConstIterator& rhs ) const {
314  return left_ < rhs.left_;
315  }
316  //*******************************************************************************************
317 
318  //**Greater-than operator********************************************************************
324  inline bool operator>( const ConstIterator& rhs ) const {
325  return left_ > rhs.left_;
326  }
327  //*******************************************************************************************
328 
329  //**Less-or-equal-than operator**************************************************************
335  inline bool operator<=( const ConstIterator& rhs ) const {
336  return left_ <= rhs.left_;
337  }
338  //*******************************************************************************************
339 
340  //**Greater-or-equal-than operator***********************************************************
346  inline bool operator>=( const ConstIterator& rhs ) const {
347  return left_ >= rhs.left_;
348  }
349  //*******************************************************************************************
350 
351  //**Subtraction operator*********************************************************************
357  inline DifferenceType operator-( const ConstIterator& rhs ) const {
358  return left_ - rhs.left_;
359  }
360  //*******************************************************************************************
361 
362  //**Addition operator************************************************************************
369  friend inline const ConstIterator operator+( const ConstIterator& it, size_t inc ) {
370  return ConstIterator( it.left_ + inc, it.right_ + inc );
371  }
372  //*******************************************************************************************
373 
374  //**Addition operator************************************************************************
381  friend inline const ConstIterator operator+( size_t inc, const ConstIterator& it ) {
382  return ConstIterator( it.left_ + inc, it.right_ + inc );
383  }
384  //*******************************************************************************************
385 
386  //**Subtraction operator*********************************************************************
393  friend inline const ConstIterator operator-( const ConstIterator& it, size_t dec ) {
394  return ConstIterator( it.left_ - dec, it.right_ - dec );
395  }
396  //*******************************************************************************************
397 
398  private:
399  //**Member variables*************************************************************************
402  //*******************************************************************************************
403  };
404  //**********************************************************************************************
405 
406  //**Compilation flags***************************************************************************
408  enum { vectorizable = MT1::vectorizable && MT2::vectorizable &&
411  //**********************************************************************************************
412 
413  //**Constructor*********************************************************************************
419  explicit inline DMatDMatSubExpr( const MT1& lhs, const MT2& rhs )
420  : lhs_( lhs ) // Left-hand side dense matrix of the subtraction expression
421  , rhs_( rhs ) // Right-hand side dense matrix of the subtraction expression
422  {
423  BLAZE_INTERNAL_ASSERT( lhs.rows() == rhs.rows() , "Invalid number of rows" );
424  BLAZE_INTERNAL_ASSERT( lhs.columns() == rhs.columns(), "Invalid number of columns" );
425  }
426  //**********************************************************************************************
427 
428  //**Access operator*****************************************************************************
435  inline ReturnType operator()( size_t i, size_t j ) const {
436  BLAZE_INTERNAL_ASSERT( i < lhs_.rows() , "Invalid row access index" );
437  BLAZE_INTERNAL_ASSERT( j < lhs_.columns(), "Invalid column access index" );
438  return lhs_(i,j) - rhs_(i,j);
439  }
440  //**********************************************************************************************
441 
442  //**Load function*******************************************************************************
449  inline IntrinsicType load( size_t i, size_t j ) const {
450  typedef IntrinsicTrait<ElementType> IT;
451  BLAZE_INTERNAL_ASSERT( i < lhs_.rows() , "Invalid row access index" );
452  BLAZE_INTERNAL_ASSERT( j < lhs_.columns(), "Invalid column access index" );
453  BLAZE_INTERNAL_ASSERT( !SO || ( i % IT::size == 0UL ), "Invalid row access index" );
454  BLAZE_INTERNAL_ASSERT( SO || ( j % IT::size == 0UL ), "Invalid column access index" );
455  const IntrinsicType xmm1( lhs_.load(i,j) );
456  const IntrinsicType xmm2( rhs_.load(i,j) );
457  return xmm1 - xmm2;
458  }
459  //**********************************************************************************************
460 
461  //**Begin function******************************************************************************
467  inline ConstIterator begin( size_t i ) const {
468  return ConstIterator( lhs_.begin(i), rhs_.begin(i) );
469  }
470  //**********************************************************************************************
471 
472  //**End function********************************************************************************
478  inline ConstIterator end( size_t i ) const {
479  return ConstIterator( lhs_.end(i), rhs_.end(i) );
480  }
481  //**********************************************************************************************
482 
483  //**Rows function*******************************************************************************
488  inline size_t rows() const {
489  return lhs_.rows();
490  }
491  //**********************************************************************************************
492 
493  //**Columns function****************************************************************************
498  inline size_t columns() const {
499  return lhs_.columns();
500  }
501  //**********************************************************************************************
502 
503  //**Left operand access*************************************************************************
508  inline LeftOperand leftOperand() const {
509  return lhs_;
510  }
511  //**********************************************************************************************
512 
513  //**Right operand access************************************************************************
518  inline RightOperand rightOperand() const {
519  return rhs_;
520  }
521  //**********************************************************************************************
522 
523  //**********************************************************************************************
529  template< typename T >
530  inline bool canAlias( const T* alias ) const {
531  return ( IsExpression<MT1>::value && ( RequiresEvaluation<MT1>::value ? lhs_.isAliased( alias ) : lhs_.canAlias( alias ) ) ) ||
532  ( IsExpression<MT2>::value && ( RequiresEvaluation<MT2>::value ? rhs_.isAliased( alias ) : rhs_.canAlias( alias ) ) );
533  }
534  //**********************************************************************************************
535 
536  //**********************************************************************************************
542  template< typename T >
543  inline bool isAliased( const T* alias ) const {
544  return ( lhs_.isAliased( alias ) || rhs_.isAliased( alias ) );
545  }
546  //**********************************************************************************************
547 
548  private:
549  //**Member variables****************************************************************************
552  //**********************************************************************************************
553 
554  //**Assignment to dense matrices****************************************************************
568  template< typename MT // Type of the target dense matrix
569  , bool SO2 > // Storage order of the target dense matrix
570  friend inline typename EnableIf< UseAssign<MT> >::Type
571  assign( DenseMatrix<MT,SO2>& lhs, const DMatDMatSubExpr& rhs )
572  {
574 
575  BLAZE_INTERNAL_ASSERT( (~lhs).rows() == rhs.rows() , "Invalid number of rows" );
576  BLAZE_INTERNAL_ASSERT( (~lhs).columns() == rhs.columns(), "Invalid number of columns" );
577 
578  if( !IsExpression<MT1>::value && (~lhs).isAliased( &rhs.lhs_ ) ) {
579  subAssign( ~lhs, rhs.rhs_ );
580  }
581  else {
582  assign ( ~lhs, rhs.lhs_ );
583  subAssign( ~lhs, rhs.rhs_ );
584  }
585  }
587  //**********************************************************************************************
588 
589  //**Assignment to sparse matrices***************************************************************
603  template< typename MT // Type of the target sparse matrix
604  , bool SO2 > // Storage order of the target sparse matrix
605  friend inline typename EnableIf< UseAssign<MT> >::Type
606  assign( SparseMatrix<MT,SO2>& lhs, const DMatDMatSubExpr& rhs )
607  {
609 
611 
618 
619  BLAZE_INTERNAL_ASSERT( (~lhs).rows() == rhs.rows() , "Invalid number of rows" );
620  BLAZE_INTERNAL_ASSERT( (~lhs).columns() == rhs.columns(), "Invalid number of columns" );
621 
622  const TmpType tmp( rhs );
623  assign( ~lhs, tmp );
624  }
626  //**********************************************************************************************
627 
628  //**Addition assignment to dense matrices*******************************************************
642  template< typename MT // Type of the target dense matrix
643  , bool SO2 > // Storage order of the target dense matrix
644  friend inline typename EnableIf< UseAssign<MT> >::Type
645  addAssign( DenseMatrix<MT,SO2>& lhs, const DMatDMatSubExpr& rhs )
646  {
648 
649  BLAZE_INTERNAL_ASSERT( (~lhs).rows() == rhs.rows() , "Invalid number of rows" );
650  BLAZE_INTERNAL_ASSERT( (~lhs).columns() == rhs.columns(), "Invalid number of columns" );
651 
652  addAssign( ~lhs, rhs.lhs_ );
653  subAssign( ~lhs, rhs.rhs_ );
654  }
656  //**********************************************************************************************
657 
658  //**Addition assignment to sparse matrices******************************************************
659  // No special implementation for the addition assignment to sparse matrices.
660  //**********************************************************************************************
661 
662  //**Subtraction assignment to dense matrices****************************************************
676  template< typename MT // Type of the target dense matrix
677  , bool SO2 > // Storage order of the target dense matrix
678  friend inline typename EnableIf< UseAssign<MT> >::Type
679  subAssign( DenseMatrix<MT,SO2>& lhs, const DMatDMatSubExpr& rhs )
680  {
682 
683  BLAZE_INTERNAL_ASSERT( (~lhs).rows() == rhs.rows() , "Invalid number of rows" );
684  BLAZE_INTERNAL_ASSERT( (~lhs).columns() == rhs.columns(), "Invalid number of columns" );
685 
686  subAssign( ~lhs, rhs.lhs_ );
687  addAssign( ~lhs, rhs.rhs_ );
688  }
690  //**********************************************************************************************
691 
692  //**Subtraction assignment to sparse matrices***************************************************
693  // No special implementation for the subtraction assignment to sparse matrices.
694  //**********************************************************************************************
695 
696  //**Multiplication assignment to dense matrices*************************************************
697  // No special implementation for the multiplication assignment to dense matrices.
698  //**********************************************************************************************
699 
700  //**Multiplication assignment to sparse matrices************************************************
701  // No special implementation for the multiplication assignment to sparse matrices.
702  //**********************************************************************************************
703 
704  //**Compile time checks*************************************************************************
709  //**********************************************************************************************
710 };
711 //*************************************************************************************************
712 
713 
714 
715 
716 //=================================================================================================
717 //
718 // GLOBAL BINARY ARITHMETIC OPERATORS
719 //
720 //=================================================================================================
721 
722 //*************************************************************************************************
747 template< typename T1 // Type of the left-hand side dense matrix
748  , typename T2 // Type of the right-hand side dense matrix
749  , bool SO > // Storage order
750 inline const DMatDMatSubExpr<T1,T2,SO>
752 {
754 
755  if( (~lhs).rows() != (~rhs).rows() || (~lhs).columns() != (~rhs).columns() )
756  throw std::invalid_argument( "Matrix sizes do not match" );
757 
758  return DMatDMatSubExpr<T1,T2,SO>( ~lhs, ~rhs );
759 }
760 //*************************************************************************************************
761 
762 
763 
764 
765 //=================================================================================================
766 //
767 // EXPRESSION TRAIT SPECIALIZATIONS
768 //
769 //=================================================================================================
770 
771 //*************************************************************************************************
773 template< typename MT1, typename MT2, bool SO >
774 struct SubmatrixExprTrait< DMatDMatSubExpr<MT1,MT2,SO> >
775 {
776  public:
777  //**********************************************************************************************
778  typedef typename SubExprTrait< typename SubmatrixExprTrait<const MT1>::Type
779  , typename SubmatrixExprTrait<const MT2>::Type >::Type Type;
780  //**********************************************************************************************
781 };
783 //*************************************************************************************************
784 
785 
786 //*************************************************************************************************
788 template< typename MT1, typename MT2, bool SO >
789 struct RowExprTrait< DMatDMatSubExpr<MT1,MT2,SO> >
790 {
791  public:
792  //**********************************************************************************************
793  typedef typename SubExprTrait< typename RowExprTrait<const MT1>::Type
794  , typename RowExprTrait<const MT2>::Type >::Type Type;
795  //**********************************************************************************************
796 };
798 //*************************************************************************************************
799 
800 
801 //*************************************************************************************************
803 template< typename MT1, typename MT2, bool SO >
804 struct ColumnExprTrait< DMatDMatSubExpr<MT1,MT2,SO> >
805 {
806  public:
807  //**********************************************************************************************
808  typedef typename SubExprTrait< typename ColumnExprTrait<const MT1>::Type
809  , typename ColumnExprTrait<const MT2>::Type >::Type Type;
810  //**********************************************************************************************
811 };
813 //*************************************************************************************************
814 
815 } // namespace blaze
816 
817 #endif
Pointer difference type of the Blaze library.
const ConstIterator operator++(int)
Post-increment operator.
Definition: DMatDMatSubExpr.h:238
ReturnType operator*() const
Direct access to the element at the current iterator position.
Definition: DMatDMatSubExpr.h:270
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:87
ConstIterator & operator++()
Pre-increment operator.
Definition: DMatDMatSubExpr.h:226
Header file for the subtraction trait.
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: DMatDMatSubExpr.h:530
bool operator>(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DMatDMatSubExpr.h:324
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: DMatDMatSubExpr.h:144
ElementType * PointerType
Pointer return type.
Definition: DMatDMatSubExpr.h:165
IntrinsicTrait< ElementType >::Type IntrinsicType
Resulting intrinsic element type.
Definition: DMatDMatSubExpr.h:141
#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
DMatDMatSubExpr(const MT1 &lhs, const MT2 &rhs)
Constructor for the DMatDMatSubExpr class.
Definition: DMatDMatSubExpr.h:419
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a dense, N-dimensional matrix type...
Definition: DenseMatrix.h:79
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: DMatDMatSubExpr.h:435
Header file for the ColumnExprTrait class template.
Header file for the IsSame and IsStrictlySame type traits.
IntrinsicType load() const
Access to the intrinsic elements of the matrix.
Definition: DMatDMatSubExpr.h:280
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2375
MT1::ReturnType RN1
Return type of the left-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:94
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:248
ConstIterator & operator--()
Pre-decrement operator.
Definition: DMatDMatSubExpr.h:248
PointerType pointer
Pointer return type.
Definition: DMatDMatSubExpr.h:172
Header file for the Computation base class.
Type relationship analysis.This class tests if the two data types A and B are equal. For this type comparison, the cv-qualifiers of both data types are ignored. If A and B are the same data type (ignoring the cv-qualifiers), then 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: IsSame.h:158
MT2::ConstIterator RightIteratorType
ConstIterator type of the right-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:180
Header file for the RequiresEvaluation type trait.
Base class for dense matrices.The DenseMatrix class is a base class for all dense matrix classes...
Definition: DenseMatrix.h:70
Iterator over the elements of the dense matrix.
Definition: DMatDMatSubExpr.h:159
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes...
Definition: Forward.h:104
Constraint on the data type.
ResultType::ElementType ElementType
Resulting element type.
Definition: DMatDMatSubExpr.h:140
MT1::CompositeType CT1
Composite type of the left-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:96
Constraint on the data type.
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:90
DifferenceType difference_type
Difference between two iterators.
Definition: DMatDMatSubExpr.h:174
RightOperand rhs_
Right-hand side dense matrix of the subtraction expression.
Definition: DMatDMatSubExpr.h:551
Expression object for dense matrix-dense matrix subtractions.The DMatDMatSubExpr class represents the...
Definition: DMatDMatSubExpr.h:86
Compile time type selection.The SelectType class template selects one of the two given types T1 and T...
Definition: SelectType.h:59
size_t rows() const
Returns the current number of rows of the matrix.
Definition: DMatDMatSubExpr.h:488
Header file for the IsTemporary type trait class.
SubTrait< RT1, RT2 >::Type ResultType
Result type for expression template evaluations.
Definition: DMatDMatSubExpr.h:137
Base class for all matrix/matrix subtraction expression templates.The MatMatSubExpr class serves as a...
Definition: MatMatSubExpr.h:65
ConstIterator begin(size_t i) const
Returns an iterator to the first non-zero element of row i.
Definition: DMatDMatSubExpr.h:467
ElementType ValueType
Type of the underlying elements.
Definition: DMatDMatSubExpr.h:164
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2379
Header file for the DenseMatrix base class.
DMatDMatSubExpr< MT1, MT2, SO > This
Type of this DMatDMatSubExpr instance.
Definition: DMatDMatSubExpr.h:136
std::random_access_iterator_tag IteratorCategory
The iterator category.
Definition: DMatDMatSubExpr.h:163
SelectType< IsExpression< MT1 >::value, const MT1, const MT1 & >::Type LeftOperand
Composite type of the left-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:150
RightIteratorType right_
Iterator to the current right-hand side element.
Definition: DMatDMatSubExpr.h:401
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
Header file for the MatMatSubExpr base class.
ReferenceType reference
Reference return type.
Definition: DMatDMatSubExpr.h:173
ConstIterator(LeftIteratorType left, RightIteratorType right)
Constructor for the ConstIterator class.
Definition: DMatDMatSubExpr.h:189
#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.
MT1::ElementType ET1
Element type of the left-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:98
ConstIterator end(size_t i) const
Returns an iterator just past the last non-zero element of row i.
Definition: DMatDMatSubExpr.h:478
Evaluation of the return type of a subtraction expression.Via this type trait it is possible to evalu...
Definition: SubExprTrait.h:103
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:2373
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: DMatDMatSubExpr.h:139
SelectType< IsExpression< MT2 >::value, const MT2, const MT2 & >::Type RightOperand
Composite type of the right-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:153
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.
bool operator<=(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DMatDMatSubExpr.h:335
ResultType::OppositeType OppositeType
Result type with opposite storage order for expression template evaluations.
Definition: DMatDMatSubExpr.h:138
ValueType value_type
Type of the underlying elements.
Definition: DMatDMatSubExpr.h:171
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DMatDMatSubExpr.h:302
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two iterators.
Definition: DMatDMatSubExpr.h:357
Header file for the SubmatrixExprTrait class template.
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2374
MT2::CompositeType CT2
Composite type of the right-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:97
Intrinsic characteristics of data types.The IntrinsicTrait class template provides the intrinsic char...
Definition: IntrinsicTrait.h:648
Header file for run time assertion macros.
MT2::ElementType ET2
Element type of the right-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:99
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
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DMatDMatSubExpr.h:291
const DenseIterator< Type > operator-(const DenseIterator< Type > &it, ptrdiff_t inc)
Subtraction between a DenseIterator and an integral value.
Definition: DenseIterator.h:585
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
friend const ConstIterator operator+(size_t inc, const ConstIterator &it)
Addition between an integral value and a ConstIterator.
Definition: DMatDMatSubExpr.h:381
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
MT2::ReturnType RN2
Return type of the right-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:95
ConstIterator & operator-=(size_t dec)
Subtraction assignment operator.
Definition: DMatDMatSubExpr.h:214
friend const ConstIterator operator-(const ConstIterator &it, size_t dec)
Subtraction between a ConstIterator and an integral value.
Definition: DMatDMatSubExpr.h:393
#define BLAZE_CONSTRAINT_MATRICES_MUST_HAVE_SAME_STORAGE_ORDER(T1, T2)
Constraint on the data type.In case either of the two given data types T1 or T2 is not a matrix type ...
Definition: StorageOrder.h:283
bool operator>=(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DMatDMatSubExpr.h:346
RightOperand rightOperand() const
Returns the right-hand side dense matrix operand.
Definition: DMatDMatSubExpr.h:518
Header file for all intrinsic functionality.
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: DMatDMatSubExpr.h:167
IntrinsicType load(size_t i, size_t j) const
Access to the intrinsic elements of the matrix.
Definition: DMatDMatSubExpr.h:449
ElementType & ReferenceType
Reference return type.
Definition: DMatDMatSubExpr.h:166
MT2::ResultType RT2
Result type of the right-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:93
SelectType< useAssign, const ResultType, const DMatDMatSubExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: DMatDMatSubExpr.h:147
IteratorCategory iterator_category
The iterator category.
Definition: DMatDMatSubExpr.h:170
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:59
LeftOperand leftOperand() const
Returns the left-hand side dense matrix operand.
Definition: DMatDMatSubExpr.h:508
SubExprTrait< RN1, RN2 >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: DMatDMatSubExpr.h:112
#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
LeftIteratorType left_
Iterator to the current left-hand side element.
Definition: DMatDMatSubExpr.h:400
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2370
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: DMatDMatSubExpr.h:543
size_t columns(const Matrix< MT, SO > &m)
Returns the current number of columns of the matrix.
Definition: Matrix.h:154
Header file for basic type definitions.
MT1::ResultType RT1
Result type of the left-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:92
bool operator<(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DMatDMatSubExpr.h:313
MT1::ConstIterator LeftIteratorType
ConstIterator type of the left-hand side dense matrix expression.
Definition: DMatDMatSubExpr.h:177
Base template for the SubTrait class.
Definition: SubTrait.h:141
LeftOperand lhs_
Left-hand side dense matrix of the subtraction expression.
Definition: DMatDMatSubExpr.h:550
friend const ConstIterator operator+(const ConstIterator &it, size_t inc)
Addition between a ConstIterator and an integral value.
Definition: DMatDMatSubExpr.h:369
size_t columns() const
Returns the current number of columns of the matrix.
Definition: DMatDMatSubExpr.h:498
const ConstIterator operator--(int)
Post-decrement operator.
Definition: DMatDMatSubExpr.h:260
Header file for the SubExprTrait class template.
size_t rows(const Matrix< MT, SO > &m)
Returns the current number of rows of the matrix.
Definition: Matrix.h:138
#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
Compile time check whether the given type is an expression template.This type trait class tests wheth...
Definition: IsExpression.h:87
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.
ConstIterator & operator+=(size_t inc)
Addition assignment operator.
Definition: DMatDMatSubExpr.h:201