DVecSVecMultExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_EXPRESSIONS_DVECSVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_DVECSVECMULTEXPR_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <iterator>
44 #include <blaze/math/Aliases.h>
50 #include <blaze/math/Exception.h>
55 #include <blaze/math/shims/Reset.h>
65 #include <blaze/util/Assert.h>
66 #include <blaze/util/EnableIf.h>
68 #include <blaze/util/mpl/If.h>
69 #include <blaze/util/mpl/Max.h>
70 #include <blaze/util/Types.h>
72 
73 
74 namespace blaze {
75 
76 //=================================================================================================
77 //
78 // CLASS DVECSVECMULTEXPR
79 //
80 //=================================================================================================
81 
82 //*************************************************************************************************
89 template< typename VT1 // Type of the left-hand side dense vector
90  , typename VT2 // Type of the right-hand side sparse vector
91  , bool TF > // Transpose flag
92 class DVecSVecMultExpr : public SparseVector< DVecSVecMultExpr<VT1,VT2,TF>, TF >
93  , private VecVecMultExpr
94  , private Computation
95 {
96  private:
97  //**Type definitions****************************************************************************
106  //**********************************************************************************************
107 
108  //**Return type evaluation**********************************************************************
110 
115  enum : bool { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value };
116 
119  //**********************************************************************************************
120 
121  //**Evaluation strategy*************************************************************************
123 
129  enum : bool { useAssign = ( RequiresEvaluation<VT1>::value || RequiresEvaluation<VT2>::value ) };
130 
132  template< typename VT >
134  struct UseAssign {
135  enum : bool { value = useAssign };
136  };
138  //**********************************************************************************************
139 
140  public:
141  //**Type definitions****************************************************************************
146 
149 
152 
154  typedef If_< IsExpression<VT1>, const VT1, const VT1& > LeftOperand;
155 
157  typedef If_< IsExpression<VT2>, const VT2, const VT2& > RightOperand;
158  //**********************************************************************************************
159 
160  //**Compilation flags***************************************************************************
162  enum : bool { smpAssignable = false };
163  //**********************************************************************************************
164 
165  //**ConstIterator class definition**************************************************************
169  {
170  public:
171  //**Type definitions*************************************************************************
174 
177 
178  typedef std::forward_iterator_tag IteratorCategory;
179  typedef Element ValueType;
180  typedef ValueType* PointerType;
181  typedef ValueType& ReferenceType;
183 
184  // STL iterator requirements
185  typedef IteratorCategory iterator_category;
186  typedef ValueType value_type;
187  typedef PointerType pointer;
188  typedef ReferenceType reference;
189  typedef DifferenceType difference_type;
190  //*******************************************************************************************
191 
192  //**Constructor******************************************************************************
195  inline ConstIterator( LeftOperand vec, IteratorType it )
196  : vec_( vec ) // Left-hand side dense vector expression
197  , it_ ( it ) // Iterator over the elements of the right-hand side sparse vector expression
198  {}
199  //*******************************************************************************************
200 
201  //**Prefix increment operator****************************************************************
207  ++it_;
208  return *this;
209  }
210  //*******************************************************************************************
211 
212  //**Element access operator******************************************************************
217  inline const Element operator*() const {
218  return Element( vec_[it_->index()] * it_->value(), it_->index() );
219  }
220  //*******************************************************************************************
221 
222  //**Element access operator******************************************************************
227  inline const ConstIterator* operator->() const {
228  return this;
229  }
230  //*******************************************************************************************
231 
232  //**Value function***************************************************************************
237  inline ReturnType value() const {
238  return vec_[it_->index()] * it_->value();
239  }
240  //*******************************************************************************************
241 
242  //**Index function***************************************************************************
247  inline size_t index() const {
248  return it_->index();
249  }
250  //*******************************************************************************************
251 
252  //**Equality operator************************************************************************
258  inline bool operator==( const ConstIterator& rhs ) const {
259  return it_ == rhs.it_;
260  }
261  //*******************************************************************************************
262 
263  //**Inequality operator**********************************************************************
269  inline bool operator!=( const ConstIterator& rhs ) const {
270  return it_ != rhs.it_;
271  }
272  //*******************************************************************************************
273 
274  //**Subtraction operator*********************************************************************
280  inline DifferenceType operator-( const ConstIterator& rhs ) const {
281  return it_ - rhs.it_;
282  }
283  //*******************************************************************************************
284 
285  private:
286  //**Member variables*************************************************************************
287  LeftOperand vec_;
288  IteratorType it_;
289  //*******************************************************************************************
290  };
291  //**********************************************************************************************
292 
293  //**Constructor*********************************************************************************
299  explicit inline DVecSVecMultExpr( const VT1& lhs, const VT2& rhs ) noexcept
300  : lhs_( lhs ) // Left-hand side dense vector of the multiplication expression
301  , rhs_( rhs ) // Right-hand side sparse vector of the multiplication expression
302  {
303  BLAZE_INTERNAL_ASSERT( lhs.size() == rhs.size(), "Invalid vector sizes" );
304  }
305  //**********************************************************************************************
306 
307  //**Subscript operator**************************************************************************
313  inline ReturnType operator[]( size_t index ) const {
314  BLAZE_INTERNAL_ASSERT( index < lhs_.size(), "Invalid vector access index" );
315  return lhs_[index] * rhs_[index];
316  }
317  //**********************************************************************************************
318 
319  //**At function*********************************************************************************
326  inline ReturnType at( size_t index ) const {
327  if( index >= lhs_.size() ) {
328  BLAZE_THROW_OUT_OF_RANGE( "Invalid vector access index" );
329  }
330  return (*this)[index];
331  }
332  //**********************************************************************************************
333 
334  //**Begin function******************************************************************************
339  inline ConstIterator begin() const {
340  return ConstIterator( lhs_, rhs_.begin() );
341  }
342  //**********************************************************************************************
343 
344  //**End function********************************************************************************
349  inline ConstIterator end() const {
350  return ConstIterator( lhs_, rhs_.end() );
351  }
352  //**********************************************************************************************
353 
354  //**Size function*******************************************************************************
359  inline size_t size() const noexcept {
360  return lhs_.size();
361  }
362  //**********************************************************************************************
363 
364  //**NonZeros function***************************************************************************
369  inline size_t nonZeros() const {
370  return rhs_.nonZeros();
371  }
372  //**********************************************************************************************
373 
374  //**Find function*******************************************************************************
380  inline ConstIterator find( size_t index ) const {
382  return ConstIterator( lhs_, rhs_.find( index ) );
383  }
384  //**********************************************************************************************
385 
386  //**LowerBound function*************************************************************************
392  inline ConstIterator lowerBound( size_t index ) const {
394  return ConstIterator( lhs_, rhs_.lowerBound( index ) );
395  }
396  //**********************************************************************************************
397 
398  //**UpperBound function*************************************************************************
404  inline ConstIterator upperBound( size_t index ) const {
406  return ConstIterator( lhs_, rhs_.upperBound( index ) );
407  }
408  //**********************************************************************************************
409 
410  //**Left operand access*************************************************************************
415  inline LeftOperand leftOperand() const noexcept {
416  return lhs_;
417  }
418  //**********************************************************************************************
419 
420  //**Right operand access************************************************************************
425  inline RightOperand rightOperand() const noexcept {
426  return rhs_;
427  }
428  //**********************************************************************************************
429 
430  //**********************************************************************************************
436  template< typename T >
437  inline bool canAlias( const T* alias ) const noexcept {
438  return ( lhs_.canAlias( alias ) || rhs_.canAlias( alias ) );
439  }
440  //**********************************************************************************************
441 
442  //**********************************************************************************************
448  template< typename T >
449  inline bool isAliased( const T* alias ) const noexcept {
450  return ( lhs_.isAliased( alias ) || rhs_.isAliased( alias ) );
451  }
452  //**********************************************************************************************
453 
454  private:
455  //**Member variables****************************************************************************
456  LeftOperand lhs_;
457  RightOperand rhs_;
458  //**********************************************************************************************
459 
460  //**Assignment to dense vectors*****************************************************************
474  template< typename VT > // Type of the target dense vector
475  friend inline EnableIf_< UseAssign<VT> >
476  assign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
477  {
479 
480  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
481 
483 
484  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
485  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
486 
487  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
488  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
489  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
490 
491  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
492  (~lhs)[element->index()] = x[element->index()] * element->value();
493  }
495  //**********************************************************************************************
496 
497  //**Assignment to sparse vectors****************************************************************
511  template< typename VT > // Type of the target sparse vector
512  friend inline EnableIf_< UseAssign<VT> >
513  assign( SparseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
514  {
516 
517  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
518 
520 
521  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
522  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
523 
524  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
525  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
526  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
527 
528  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
529  (~lhs).append( element->index(), x[element->index()] * element->value() );
530  }
532  //**********************************************************************************************
533 
534  //**Addition assignment to dense vectors********************************************************
548  template< typename VT > // Type of the target dense vector
549  friend inline EnableIf_< UseAssign<VT> >
550  addAssign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
551  {
553 
554  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
555 
557 
558  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
559  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
560 
561  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
562  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
563  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
564 
565  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
566  (~lhs)[element->index()] += x[element->index()] * element->value();
567  }
569  //**********************************************************************************************
570 
571  //**Addition assignment to sparse vectors*******************************************************
572  // No special implementation for the addition assignment to sparse vectors.
573  //**********************************************************************************************
574 
575  //**Subtraction assignment to dense vectors*****************************************************
589  template< typename VT > // Type of the target dense vector
590  friend inline EnableIf_< UseAssign<VT> >
591  subAssign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
592  {
594 
595  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
596 
598 
599  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
600  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
601 
602  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
603  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
604  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
605 
606  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
607  (~lhs)[element->index()] -= x[element->index()] * element->value();
608  }
610  //**********************************************************************************************
611 
612  //**Subtraction assignment to sparse vectors****************************************************
613  // No special implementation for the subtraction assignment to sparse vectors.
614  //**********************************************************************************************
615 
616  //**Multiplication assignment to dense vectors**************************************************
630  template< typename VT > // Type of the target dense vector
631  friend inline EnableIf_< UseAssign<VT> >
632  multAssign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
633  {
635 
636  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
637 
639 
640  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
641  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
642 
643  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
644  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
645  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
646 
647  const ConstIterator end( y.end() );
648  ConstIterator begin( y.begin() );
649  size_t i( 0UL );
650 
651  for( ; begin!=end; ++begin ) {
652  const size_t index( begin->index() );
653  for( ; i<index; ++i )
654  reset( (~lhs)[i] );
655  (~lhs)[index] *= x[index] * begin->value();
656  ++i;
657  }
658 
659  for( ; i<(~lhs).size(); ++i )
660  reset( (~lhs)[i] );
661  }
663  //**********************************************************************************************
664 
665  //**Multiplication assignment to sparse vectors*************************************************
666  // No special implementation for the multiplication assignment to sparse vectors.
667  //**********************************************************************************************
668 
669  //**Compile time checks*************************************************************************
677  //**********************************************************************************************
678 };
679 //*************************************************************************************************
680 
681 
682 
683 
684 //=================================================================================================
685 //
686 // GLOBAL BINARY ARITHMETIC OPERATORS
687 //
688 //=================================================================================================
689 
690 //*************************************************************************************************
717 template< typename T1 // Type of the left-hand side dense vector
718  , typename T2 // Type of the right-hand side sparse vector
719  , bool TF > // Transpose flag
720 inline const DVecSVecMultExpr<T1,T2,TF>
722 {
724 
725  if( (~lhs).size() != (~rhs).size() ) {
726  BLAZE_THROW_INVALID_ARGUMENT( "Vector sizes do not match" );
727  }
728 
729  return DVecSVecMultExpr<T1,T2,TF>( ~lhs, ~rhs );
730 }
731 //*************************************************************************************************
732 
733 
734 
735 
736 //=================================================================================================
737 //
738 // SIZE SPECIALIZATIONS
739 //
740 //=================================================================================================
741 
742 //*************************************************************************************************
744 template< typename VT1, typename VT2, bool TF >
745 struct Size< DVecSVecMultExpr<VT1,VT2,TF> >
746  : public Max< Size<VT1>, Size<VT2> >
747 {};
749 //*************************************************************************************************
750 
751 
752 
753 
754 //=================================================================================================
755 //
756 // EXPRESSION TRAIT SPECIALIZATIONS
757 //
758 //=================================================================================================
759 
760 //*************************************************************************************************
762 template< typename VT1, typename VT2, bool TF, bool AF >
763 struct SubvectorExprTrait< DVecSVecMultExpr<VT1,VT2,TF>, AF >
764 {
765  public:
766  //**********************************************************************************************
769  //**********************************************************************************************
770 };
772 //*************************************************************************************************
773 
774 } // namespace blaze
775 
776 #endif
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: DVecSVecMultExpr.h:182
ConstIterator_< RemoveReference_< RightOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: DVecSVecMultExpr.h:176
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exception.This macro encapsulates the default way o...
Definition: Exception.h:235
Pointer difference type of the Blaze library.
LeftOperand vec_
Left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:287
Header file for auxiliary alias declarations.
Header file for the Max class template.
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: DVecSVecMultExpr.h:217
ConstIterator(LeftOperand vec, IteratorType it)
Constructor for the ConstIterator class.
Definition: DVecSVecMultExpr.h:195
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:70
Evaluation of the expression type type of a subvector operation.Via this type trait it is possible to...
Definition: SubvectorExprTrait.h:79
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: DVecSVecMultExpr.h:437
Header file for basic type definitions.
Header file for the SparseVector base class.
IfTrue_< useAssign, const ResultType, const DVecSVecMultExpr &> CompositeType
Data type for composite expression templates.
Definition: DVecSVecMultExpr.h:151
ReturnType_< VT1 > RN1
Return type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:100
Header file for the serial shim.
Element ValueType
Type of the underlying pointers.
Definition: DVecSVecMultExpr.h:179
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: DVecSVecMultExpr.h:449
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: DVecSVecMultExpr.h:227
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:533
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: DVecSVecMultExpr.h:339
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: DVecSVecMultExpr.h:392
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:721
typename MultTrait< T1, T2 >::Type MultTrait_
Auxiliary alias declaration for the MultTrait class template.The MultTrait_ alias declaration provide...
Definition: MultTrait.h:245
Expression object for dense vector-sparse vector multiplications.The DVecSVecMultExpr class represent...
Definition: DVecSVecMultExpr.h:92
Header file for the Computation base class.
ValueType value_type
Type of the underlying pointers.
Definition: DVecSVecMultExpr.h:186
Header file for the RequiresEvaluation type trait.
IteratorCategory iterator_category
The iterator category.
Definition: DVecSVecMultExpr.h:185
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:323
ReturnType_< VT2 > RN2
Return type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:101
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: DVecSVecMultExpr.h:359
RightOperand rhs_
Right-hand side sparse vector of the multiplication expression.
Definition: DVecSVecMultExpr.h:457
LeftOperand leftOperand() const noexcept
Returns the left-hand side dense vector operand.
Definition: DVecSVecMultExpr.h:415
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: DVecSVecMultExpr.h:280
typename IfTrue< Condition, T1, T2 >::Type IfTrue_
Auxiliary alias declaration for the IfTrue class template.The IfTrue_ alias declaration provides a co...
Definition: If.h:109
typename T::ReturnType ReturnType_
Alias declaration for nested ReturnType type definitions.The ReturnType_ alias declaration provides a...
Definition: Aliases.h:343
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: DVecSVecMultExpr.h:178
ResultType_< VT1 > RT1
Result type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:98
typename MultExprTrait< T1, T2 >::Type MultExprTrait_
Auxiliary alias declaration for the MultExprTrait class template.The MultExprTrait_ alias declaration...
Definition: MultExprTrait.h:344
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:72
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
MultExprTrait_< RN1, RN2 > ExprReturnType
Expression return type for the subscript operator.
Definition: DVecSVecMultExpr.h:118
CompositeType_< VT2 > CT2
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:103
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: DVecSVecMultExpr.h:380
Header file for the ValueIndexPair class.
ConstIterator & operator++()
Pre-increment operator.
Definition: DVecSVecMultExpr.h:206
Header file for the IsTemporary type trait class.
Header file for the multiplication trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Header file for the If class template.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2939
#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
typename SubvectorExprTrait< VT, AF >::Type SubvectorExprTrait_
Auxiliary alias declaration for the SubvectorExprTrait type trait.The SubvectorExprTrait_ alias decla...
Definition: SubvectorExprTrait.h:133
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
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:61
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: DVecSVecMultExpr.h:349
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: DVecSVecMultExpr.h:425
Constraint on the data type.
DifferenceType difference_type
Difference between two iterators.
Definition: DVecSVecMultExpr.h:189
Constraint on the data type.
Header file for the exception macros of the math module.
Header file for the VecVecMultExpr base class.
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DVecSVecMultExpr.h:269
ResultType_< VT2 > RT2
Result type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:99
Constraint on the data type.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Header file for the EnableIf class template.
DVecSVecMultExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the DVecSVecMultExpr class.
Definition: DVecSVecMultExpr.h:299
TransposeType_< VT2 > TT2
Transpose type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:105
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DVecSVecMultExpr.h:258
ReferenceType reference
Reference return type.
Definition: DVecSVecMultExpr.h:188
Iterator over the elements of the dense vector-sparse vector multiplication expression.
Definition: DVecSVecMultExpr.h:168
Header file for run time assertion macros.
Compile time value evaluation.The Max class template selects the larger of the two given template arg...
Definition: Max.h:72
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: DVecSVecMultExpr.h:326
typename If< T1, T2, T3 >::Type If_
Auxiliary alias declaration for the If class template.The If_ alias declaration provides a convenient...
Definition: If.h:160
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: DVecSVecMultExpr.h:404
Header file for the reset shim.
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:93
ValueType & ReferenceType
Reference return type.
Definition: DVecSVecMultExpr.h:181
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DVecSVecMultExpr.h:313
If_< IsExpression< VT2 >, const VT2, const VT2 &> RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:157
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: DVecSVecMultExpr.h:144
#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
Header file for the RemoveReference type trait.
TransposeType_< VT1 > TT1
Transpose type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:104
CompositeType_< VT1 > CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:102
PointerType pointer
Pointer return type.
Definition: DVecSVecMultExpr.h:187
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:223
ReturnType value() const
Access to the current value of the sparse element.
Definition: DVecSVecMultExpr.h:237
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: DVecSVecMultExpr.h:173
MultTrait_< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: DVecSVecMultExpr.h:143
typename T::ConstIterator ConstIterator_
Alias declaration for nested ConstIterator type definitions.The ConstIterator_ alias declaration prov...
Definition: Aliases.h:103
#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:61
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:73
Constraint on the data type.
ValueType * PointerType
Pointer return type.
Definition: DVecSVecMultExpr.h:180
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECMULTEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecMultExpr.h:109
LeftOperand lhs_
Left-hand side dense vector of the multiplication expression.
Definition: DVecSVecMultExpr.h:456
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:59
Compile time evaluation of the size of a vector.The Size type trait evaluates the size of the given v...
Definition: Size.h:75
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:120
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: DVecSVecMultExpr.h:369
Header file for the SubvectorExprTrait class template.
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: DVecSVecMultExpr.h:148
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:403
DVecSVecMultExpr< VT1, VT2, TF > This
Type of this DVecSVecMultExpr instance.
Definition: DVecSVecMultExpr.h:142
IteratorType it_
Iterator over the elements of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:288
const DMatDMatMultExpr< T1, T2, false, false, false, false > 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:7505
Header file for the Size type trait.
If_< IsExpression< VT1 >, const VT1, const VT1 &> LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:154
#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:63
Base class for all vector/vector multiplication expression templates.The VecVecMultExpr class serves ...
Definition: VecVecMultExpr.h:65
#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
ElementType_< ResultType > ElementType
Resulting element type.
Definition: DVecSVecMultExpr.h:145
Header file for the IsExpression type trait class.
Header file for the function trace functionality.
size_t index() const
Access to the current index of the sparse element.
Definition: DVecSVecMultExpr.h:247