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SVecDVecMultExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECDVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECDVECMULTEXPR_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <iterator>
44 #include <stdexcept>
58 #include <blaze/util/Assert.h>
60 #include <blaze/util/EnableIf.h>
62 #include <blaze/util/SelectType.h>
63 #include <blaze/util/Types.h>
65 
66 
67 namespace blaze {
68 
69 //=================================================================================================
70 //
71 // CLASS SVECDVECMULTEXPR
72 //
73 //=================================================================================================
74 
75 //*************************************************************************************************
82 template< typename VT1 // Type of the left-hand side sparse vector
83  , typename VT2 // Type of the right-hand side dense vector
84  , bool TF > // Transpose flag
85 class SVecDVecMultExpr : public SparseVector< SVecDVecMultExpr<VT1,VT2,TF>, TF >
86  , private VecVecMultExpr
87  , private Computation
88 {
89  private:
90  //**Type definitions****************************************************************************
91  typedef typename VT1::ResultType RT1;
92  typedef typename VT2::ResultType RT2;
93  typedef typename VT1::ReturnType RN1;
94  typedef typename VT2::ReturnType RN2;
95  typedef typename VT1::CompositeType CT1;
96  typedef typename VT2::CompositeType CT2;
97  typedef typename VT1::TransposeType TT1;
98  typedef typename VT2::TransposeType TT2;
99  //**********************************************************************************************
100 
101  //**Return type evaluation**********************************************************************
103 
108  enum { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value };
109 
112  //**********************************************************************************************
113 
114  //**Evaluation strategy*************************************************************************
116 
123 
125  template< typename VT >
127  struct UseAssign {
128  enum { value = useAssign };
129  };
131  //**********************************************************************************************
132 
133  public:
134  //**Type definitions****************************************************************************
139 
142 
145 
147  typedef typename SelectType< IsExpression<VT1>::value, const VT1, const VT1& >::Type LeftOperand;
148 
150  typedef typename SelectType< IsExpression<VT2>::value, const VT2, const VT2& >::Type RightOperand;
151  //**********************************************************************************************
152 
153  //**ConstIterator class definition**************************************************************
157  {
158  public:
159  //**Type definitions*************************************************************************
162 
165 
166  typedef std::forward_iterator_tag IteratorCategory;
167  typedef ElementType ValueType;
171 
172  // STL iterator requirements
178  //*******************************************************************************************
179 
180  //**Constructor******************************************************************************
183  inline ConstIterator( IteratorType it, RightOperand vec )
184  : it_ ( it ) // Iterator over the elements of the left-hand side sparse vector expression
185  , vec_( vec ) // Right-hand side dense vector expression
186  {}
187  //*******************************************************************************************
188 
189  //**Prefix increment operator****************************************************************
195  ++it_;
196  return *this;
197  }
198  //*******************************************************************************************
199 
200  //**Element access operator******************************************************************
205  inline const Element operator*() const {
206  return Element( it_->value() * vec_[it_->index()], it_->index() );
207  }
208  //*******************************************************************************************
209 
210  //**Element access operator******************************************************************
215  inline const ConstIterator* operator->() const {
216  return this;
217  }
218  //*******************************************************************************************
219 
220  //**Value function***************************************************************************
225  inline ReturnType value() const {
226  return it_->value() * vec_[it_->index()];
227  }
228  //*******************************************************************************************
229 
230  //**Index function***************************************************************************
235  inline size_t index() const {
236  return it_->index();
237  }
238  //*******************************************************************************************
239 
240  //**Equality operator************************************************************************
246  inline bool operator==( const ConstIterator& rhs ) const {
247  return it_ == rhs.it_;
248  }
249  //*******************************************************************************************
250 
251  //**Inequality operator**********************************************************************
257  inline bool operator!=( const ConstIterator& rhs ) const {
258  return it_ != rhs.it_;
259  }
260  //*******************************************************************************************
261 
262  //**Subtraction operator*********************************************************************
268  inline DifferenceType operator-( const ConstIterator& rhs ) const {
269  return it_ - rhs.it_;
270  }
271  //*******************************************************************************************
272 
273  private:
274  //**Member variables*************************************************************************
276  RightOperand vec_;
277  //*******************************************************************************************
278  };
279  //**********************************************************************************************
280 
281  //**Constructor*********************************************************************************
287  explicit inline SVecDVecMultExpr( const VT1& lhs, const VT2& rhs )
288  : lhs_( lhs ) // Left-hand side sparse vector of the multiplication expression
289  , rhs_( rhs ) // Right-hand side dense vector of the multiplication expression
290  {
291  BLAZE_INTERNAL_ASSERT( lhs.size() == rhs.size(), "Invalid vector sizes" );
292  }
293  //**********************************************************************************************
294 
295  //**Subscript operator**************************************************************************
301  inline ReturnType operator[]( size_t index ) const {
302  BLAZE_INTERNAL_ASSERT( index < lhs_.size(), "Invalid vector access index" );
303  return lhs_[index] * rhs_[index];
304  }
305  //**********************************************************************************************
306 
307  //**Begin function******************************************************************************
312  inline ConstIterator begin() const {
313  return ConstIterator( lhs_.begin(), rhs_ );
314  }
315  //**********************************************************************************************
316 
317  //**End function********************************************************************************
322  inline ConstIterator end() const {
323  return ConstIterator( lhs_.end(), rhs_ );
324  }
325  //**********************************************************************************************
326 
327  //**Size function*******************************************************************************
332  inline size_t size() const {
333  return rhs_.size();
334  }
335  //**********************************************************************************************
336 
337  //**NonZeros function***************************************************************************
342  inline size_t nonZeros() const {
343  return lhs_.nonZeros();
344  }
345  //**********************************************************************************************
346 
347  //**Left operand access*************************************************************************
352  inline LeftOperand leftOperand() const {
353  return lhs_;
354  }
355  //**********************************************************************************************
356 
357  //**Right operand access************************************************************************
362  inline RightOperand rightOperand() const {
363  return rhs_;
364  }
365  //**********************************************************************************************
366 
367  //**********************************************************************************************
373  template< typename T >
374  inline bool canAlias( const T* alias ) const {
375  return ( lhs_.canAlias( alias ) ) || ( rhs_.canAlias( alias ) );
376  }
377  //**********************************************************************************************
378 
379  //**********************************************************************************************
385  template< typename T >
386  inline bool isAliased( const T* alias ) const {
387  return ( lhs_.isAliased( alias ) ) || ( rhs_.isAliased( alias ) );
388  }
389  //**********************************************************************************************
390 
391  private:
392  //**Member variables****************************************************************************
393  LeftOperand lhs_;
394  RightOperand rhs_;
395  //**********************************************************************************************
396 
397  //**Assignment to dense vectors*****************************************************************
411  template< typename VT > // Type of the target dense vector
412  friend inline typename EnableIf< UseAssign<VT> >::Type
413  assign( DenseVector<VT,TF>& lhs, const SVecDVecMultExpr& rhs )
414  {
416 
417  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
418 
420 
421  CT1 x( rhs.lhs_ ); // Evaluation of the left-hand side sparse vector operand
422  CT2 y( rhs.rhs_ ); // Evaluation of the right-hand side dense vector operand
423 
424  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
425  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
426  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
427 
428  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
429  (~lhs)[element->index()] = element->value() * y[element->index()];
430  }
432  //**********************************************************************************************
433 
434  //**Assignment to sparse vectors****************************************************************
448  template< typename VT > // Type of the target sparse vector
449  friend inline typename EnableIf< UseAssign<VT> >::Type
450  assign( SparseVector<VT,TF>& lhs, const SVecDVecMultExpr& rhs )
451  {
453 
454  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
455 
457 
458  CT1 x( rhs.lhs_ ); // Evaluation of the left-hand side sparse vector operand
459  CT2 y( rhs.rhs_ ); // Evaluation of the right-hand side dense vector operand
460 
461  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
462  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
463  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
464 
465  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
466  (~lhs).append( element->index(), element->value() * y[element->index()] );
467  }
469  //**********************************************************************************************
470 
471  //**Addition assignment to dense vectors********************************************************
485  template< typename VT > // Type of the target dense vector
486  friend inline typename EnableIf< UseAssign<VT> >::Type
487  addAssign( DenseVector<VT,TF>& lhs, const SVecDVecMultExpr& rhs )
488  {
490 
491  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
492 
494 
495  CT1 x( rhs.lhs_ ); // Evaluation of the left-hand side sparse vector operand
496  CT2 y( rhs.rhs_ ); // Evaluation of the right-hand side dense vector operand
497 
498  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
499  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
500  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
501 
502  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
503  (~lhs)[element->index()] += element->value() * y[element->index()];
504  }
506  //**********************************************************************************************
507 
508  //**Addition assignment to sparse vectors*******************************************************
509  // No special implementation for the addition assignment to sparse vectors.
510  //**********************************************************************************************
511 
512  //**Subtraction assignment to dense vectors*****************************************************
526  template< typename VT > // Type of the target dense vector
527  friend inline typename EnableIf< UseAssign<VT> >::Type
528  subAssign( DenseVector<VT,TF>& lhs, const SVecDVecMultExpr& rhs )
529  {
531 
532  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
533 
535 
536  CT1 x( rhs.lhs_ ); // Evaluation of the left-hand side sparse vector operand
537  CT2 y( rhs.rhs_ ); // Evaluation of the right-hand side dense vector operand
538 
539  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
540  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
541  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
542 
543  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
544  (~lhs)[element->index()] -= element->value() * y[element->index()];
545  }
547  //**********************************************************************************************
548 
549  //**Subtraction assignment to sparse vectors****************************************************
550  // No special implementation for the subtraction assignment to sparse vectors.
551  //**********************************************************************************************
552 
553  //**Multiplication assignment to dense vectors**************************************************
567  template< typename VT > // Type of the target dense vector
568  friend inline typename EnableIf< UseAssign<VT> >::Type
569  multAssign( DenseVector<VT,TF>& lhs, const SVecDVecMultExpr& rhs )
570  {
572 
573  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
574 
576 
577  CT1 x( rhs.lhs_ ); // Evaluation of the left-hand side sparse vector operand
578  CT2 y( rhs.rhs_ ); // Evaluation of the right-hand side dense vector operand
579 
580  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
581  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
582  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
583 
584  const ConstIterator end( x.end() );
585  ConstIterator begin( x.begin() );
586  size_t i( 0UL );
587 
588  for( ; begin!=end; ++begin ) {
589  const size_t index( begin->index() );
590  for( ; i<index; ++i )
591  reset( (~lhs)[i] );
592  (~lhs)[index] *= begin->value() * y[index];
593  ++i;
594  }
595 
596  for( ; i<rhs.size(); ++i )
597  reset( (~lhs)[i] );
598  }
600  //**********************************************************************************************
601 
602  //**Multiplication assignment to sparse vectors*************************************************
603  // No special implementation for the multiplication assignment to sparse vectors.
604  //**********************************************************************************************
605 
606  //**Compile time checks*************************************************************************
613  //**********************************************************************************************
614 };
615 //*************************************************************************************************
616 
617 
618 
619 
620 //=================================================================================================
621 //
622 // GLOBAL BINARY ARITHMETIC OPERATORS
623 //
624 //=================================================================================================
625 
626 //*************************************************************************************************
653 template< typename T1 // Type of the left-hand side sparse vector
654  , typename T2 // Type of the right-hand side dense vector
655  , bool TF > // Transpose flag
656 inline const SVecDVecMultExpr<T1,T2,TF>
658 {
660 
661  if( (~lhs).size() != (~rhs).size() )
662  throw std::invalid_argument( "Vector sizes do not match" );
663 
664  return SVecDVecMultExpr<T1,T2,TF>( ~lhs, ~rhs );
665 }
666 //*************************************************************************************************
667 
668 
669 
670 
671 //=================================================================================================
672 //
673 // EXPRESSION TRAIT SPECIALIZATIONS
674 //
675 //=================================================================================================
676 
677 //*************************************************************************************************
679 template< typename VT1, typename VT2, bool TF >
680 struct SubvectorExprTrait< SVecDVecMultExpr<VT1,VT2,TF> >
681 {
682  public:
683  //**********************************************************************************************
684  typedef typename MultExprTrait< typename SubvectorExprTrait<const VT1>::Type
685  , typename SubvectorExprTrait<const VT2>::Type >::Type Type;
686  //**********************************************************************************************
687 };
689 //*************************************************************************************************
690 
691 } // namespace blaze
692 
693 #endif
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SVecDVecMultExpr.h:170
Pointer difference type of the Blaze library.
ValueType & ReferenceType
Reference return type.
Definition: SVecDVecMultExpr.h:169
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecDVecMultExpr.h:342
void reset(DynamicMatrix< Type, SO > &m)
Resetting the given dense matrix.
Definition: DynamicMatrix.h:4512
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:87
LeftOperand leftOperand() const
Returns the left-hand side sparse vector operand.
Definition: SVecDVecMultExpr.h:352
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:3703
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecDVecMultExpr.h:312
Header file for the SparseVector base class.
RightOperand vec_
Right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:276
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:196
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecDVecMultExpr.h:257
size_t index() const
Access to the current index of the sparse element.
Definition: SVecDVecMultExpr.h:235
VT1::TransposeType TT1
Transpose type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:97
IteratorCategory iterator_category
The iterator category.
Definition: SVecDVecMultExpr.h:173
MultExprTrait< RN1, RN2 >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: SVecDVecMultExpr.h:111
RightOperand rhs_
Right-hand side dense vector of the multiplication expression.
Definition: SVecDVecMultExpr.h:394
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2375
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:248
VT2::CompositeType CT2
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:96
Header file for the Computation base class.
ValueType value_type
Type of the underlying pointers.
Definition: SVecDVecMultExpr.h:174
SVecDVecMultExpr< VT1, VT2, TF > This
Type of this SVecDVecMultExpr instance.
Definition: SVecDVecMultExpr.h:135
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SVecDVecMultExpr.h:386
size_t size() const
Returns the current size/dimension of the vector.
Definition: SVecDVecMultExpr.h:332
Constraint on the data type.
SelectType< IsExpression< VT2 >::value, const VT2, const VT2 & >::Type RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:150
RemoveReference< LeftOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse vector expression.
Definition: SVecDVecMultExpr.h:164
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SVecDVecMultExpr.h:137
VT1::CompositeType CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:95
Header file for the MultExprTrait class template.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecDVecMultExpr.h:301
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:90
ResultType::ElementType ElementType
Resulting element type.
Definition: SVecDVecMultExpr.h:138
Header file for the ValueIndexPair class.
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.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2379
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SVecDVecMultExpr.h:374
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
SelectType< IsExpression< VT1 >::value, const VT1, const VT1 & >::Type LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:147
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional vector type...
Definition: SparseVector.h:79
LeftOperand lhs_
Left-hand side sparse vector of the multiplication expression.
Definition: SVecDVecMultExpr.h:393
Constraint on the data type.
CompressedMatrix< Type, false > TransposeType
Transpose type for expression template evaluations.
Definition: CompressedMatrix.h:2372
Constraint on the data type.
Header file for the VecVecMultExpr base class.
void multAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the multiplication assignment of a matrix to a matrix.
Definition: Matrix.h:269
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
VT2::ResultType RT2
Result type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:92
Iterator over the elements of the sparse vector-dense vector multiplication expression.
Definition: SVecDVecMultExpr.h:156
Header file for the EnableIf class template.
VT2::ReturnType RN2
Return type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:94
RightOperand rightOperand() const
Returns the right-hand side dense vector operand.
Definition: SVecDVecMultExpr.h:362
SVecDVecMultExpr(const VT1 &lhs, const VT2 &rhs)
Constructor for the SVecDVecMultExpr class.
Definition: SVecDVecMultExpr.h:287
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecDVecMultExpr.h:225
ValueType * PointerType
Pointer return type.
Definition: SVecDVecMultExpr.h:168
DifferenceType difference_type
Difference between two iterators.
Definition: SVecDVecMultExpr.h:177
VT1::ResultType RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:91
MultTrait< RT1, RT2 >::Type ResultType
Result type for expression template evaluations.
Definition: SVecDVecMultExpr.h:136
SelectType< useAssign, const ResultType, const SVecDVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SVecDVecMultExpr.h:144
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2374
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
VT1::ReturnType RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:93
Header file for run time assertion macros.
Base template for the MultTrait class.
Definition: MultTrait.h:141
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
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: SVecDVecMultExpr.h:161
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
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
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecDVecMultExpr.h:268
Header file for the RemoveReference type trait.
ElementType ValueType
Type of the underlying pointers.
Definition: SVecDVecMultExpr.h:167
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a dense, N-dimensional vector type...
Definition: DenseVector.h:79
IteratorType it_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecDVecMultExpr.h:275
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:69
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SVecDVecMultExpr.h:141
ConstIterator & operator++()
Pre-increment operator.
Definition: SVecDVecMultExpr.h:194
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:105
#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:2370
PointerType pointer
Pointer return type.
Definition: SVecDVecMultExpr.h:175
Header file for basic type definitions.
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecMultExpr.h:205
Header file for the SubvectorExprTrait class template.
ConstIterator(IteratorType it, RightOperand vec)
Constructor for the ConstIterator class.
Definition: SVecDVecMultExpr.h:183
VT2::TransposeType TT2
Transpose type of the right-hand side dense vector expression.
Definition: SVecDVecMultExpr.h:98
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecDVecMultExpr.h:322
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecDVecMultExpr.h:246
Evaluation of the resulting expression type of a multiplication.Via this type trait it is possible to...
Definition: MultExprTrait.h:137
#define BLAZE_CONSTRAINT_MUST_BE_VECTOR_WITH_TRANSPOSE_FLAG(T, TF)
Constraint on the data type.In case the given data type T is not a dense or sparse vector type and in...
Definition: TransposeFlag.h:238
#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
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecDVecMultExpr.h:166
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecMultExpr.h:215
ReferenceType reference
Reference return type.
Definition: SVecDVecMultExpr.h:176
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.
Expression object for sparse vector-dense vector multiplications.The SVecDVecMultExpr class represent...
Definition: Forward.h:108