SVecDVecDivExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECDVECDIVEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECDVECDIVEXPR_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>
67 #include <blaze/util/EnableIf.h>
69 #include <blaze/util/mpl/If.h>
70 #include <blaze/util/mpl/Max.h>
71 #include <blaze/util/Types.h>
73 
74 
75 namespace blaze {
76 
77 //=================================================================================================
78 //
79 // CLASS SVECDVECDIVEXPR
80 //
81 //=================================================================================================
82 
83 //*************************************************************************************************
90 template< typename VT1 // Type of the left-hand side sparse vector
91  , typename VT2 // Type of the right-hand side dense vector
92  , bool TF > // Transpose flag
93 class SVecDVecDivExpr : public SparseVector< SVecDVecDivExpr<VT1,VT2,TF>, TF >
94  , private VecVecDivExpr
95  , private Computation
96 {
97  private:
98  //**Type definitions****************************************************************************
105  //**********************************************************************************************
106 
107  //**Return type evaluation**********************************************************************
109 
114  enum : bool { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value };
115 
118  //**********************************************************************************************
119 
120  //**Evaluation strategy*************************************************************************
122 
128  enum : bool { useAssign = ( RequiresEvaluation<VT1>::value || RequiresEvaluation<VT2>::value ) };
129 
131  template< typename VT >
133  struct UseAssign {
134  enum : bool { value = useAssign };
135  };
137  //**********************************************************************************************
138 
139  public:
140  //**Type definitions****************************************************************************
145 
148 
151 
153  typedef If_< IsExpression<VT1>, const VT1, const VT1& > LeftOperand;
154 
156  typedef If_< IsExpression<VT2>, const VT2, const VT2& > RightOperand;
157  //**********************************************************************************************
158 
159  //**Compilation flags***************************************************************************
161  enum : bool { smpAssignable = false };
162  //**********************************************************************************************
163 
164  //**ConstIterator class definition**************************************************************
168  {
169  public:
170  //**Type definitions*************************************************************************
173 
176 
177  typedef std::forward_iterator_tag IteratorCategory;
178  typedef ElementType ValueType;
179  typedef ValueType* PointerType;
180  typedef ValueType& ReferenceType;
182 
183  // STL iterator requirements
184  typedef IteratorCategory iterator_category;
185  typedef ValueType value_type;
186  typedef PointerType pointer;
187  typedef ReferenceType reference;
188  typedef DifferenceType difference_type;
189  //*******************************************************************************************
190 
191  //**Constructor******************************************************************************
194  inline ConstIterator( IteratorType it, RightOperand vec )
195  : it_ ( it ) // Iterator over the elements of the left-hand side sparse vector expression
196  , vec_( vec ) // Right-hand side dense vector expression
197  {}
198  //*******************************************************************************************
199 
200  //**Prefix increment operator****************************************************************
206  ++it_;
207  return *this;
208  }
209  //*******************************************************************************************
210 
211  //**Element access operator******************************************************************
216  inline const Element operator*() const {
217  return Element( it_->value() / vec_[it_->index()], it_->index() );
218  }
219  //*******************************************************************************************
220 
221  //**Element access operator******************************************************************
226  inline const ConstIterator* operator->() const {
227  return this;
228  }
229  //*******************************************************************************************
230 
231  //**Value function***************************************************************************
236  inline ReturnType value() const {
237  return it_->value() / vec_[it_->index()];
238  }
239  //*******************************************************************************************
240 
241  //**Index function***************************************************************************
246  inline size_t index() const {
247  return it_->index();
248  }
249  //*******************************************************************************************
250 
251  //**Equality operator************************************************************************
257  inline bool operator==( const ConstIterator& rhs ) const {
258  return it_ == rhs.it_;
259  }
260  //*******************************************************************************************
261 
262  //**Inequality operator**********************************************************************
268  inline bool operator!=( const ConstIterator& rhs ) const {
269  return it_ != rhs.it_;
270  }
271  //*******************************************************************************************
272 
273  //**Subtraction operator*********************************************************************
279  inline DifferenceType operator-( const ConstIterator& rhs ) const {
280  return it_ - rhs.it_;
281  }
282  //*******************************************************************************************
283 
284  private:
285  //**Member variables*************************************************************************
286  IteratorType it_;
287  RightOperand vec_;
288  //*******************************************************************************************
289  };
290  //**********************************************************************************************
291 
292  //**Constructor*********************************************************************************
298  explicit inline SVecDVecDivExpr( const VT1& lhs, const VT2& rhs ) noexcept
299  : lhs_( lhs ) // Left-hand side sparse vector of the division expression
300  , rhs_( rhs ) // Right-hand side dense vector of the division expression
301  {
302  BLAZE_INTERNAL_ASSERT( lhs.size() == rhs.size(), "Invalid vector sizes" );
303  }
304  //**********************************************************************************************
305 
306  //**Subscript operator**************************************************************************
312  inline ReturnType operator[]( size_t index ) const {
313  BLAZE_INTERNAL_ASSERT( index < lhs_.size(), "Invalid vector access index" );
314  return lhs_[index] / rhs_[index];
315  }
316  //**********************************************************************************************
317 
318  //**At function*********************************************************************************
325  inline ReturnType at( size_t index ) const {
326  if( index >= lhs_.size() ) {
327  BLAZE_THROW_OUT_OF_RANGE( "Invalid vector access index" );
328  }
329  return (*this)[index];
330  }
331  //**********************************************************************************************
332 
333  //**Begin function******************************************************************************
338  inline ConstIterator begin() const {
339  return ConstIterator( lhs_.begin(), rhs_ );
340  }
341  //**********************************************************************************************
342 
343  //**End function********************************************************************************
348  inline ConstIterator end() const {
349  return ConstIterator( lhs_.end(), rhs_ );
350  }
351  //**********************************************************************************************
352 
353  //**Size function*******************************************************************************
358  inline size_t size() const noexcept {
359  return rhs_.size();
360  }
361  //**********************************************************************************************
362 
363  //**NonZeros function***************************************************************************
368  inline size_t nonZeros() const {
369  return lhs_.nonZeros();
370  }
371  //**********************************************************************************************
372 
373  //**Find function*******************************************************************************
379  inline ConstIterator find( size_t index ) const {
381  return ConstIterator( lhs_.find( index ), rhs_ );
382  }
383  //**********************************************************************************************
384 
385  //**LowerBound function*************************************************************************
391  inline ConstIterator lowerBound( size_t index ) const {
393  return ConstIterator( lhs_.lowerBound( index ), rhs_ );
394  }
395  //**********************************************************************************************
396 
397  //**UpperBound function*************************************************************************
403  inline ConstIterator upperBound( size_t index ) const {
405  return ConstIterator( lhs_.upperBound( index ), rhs_ );
406  }
407  //**********************************************************************************************
408 
409  //**Left operand access*************************************************************************
414  inline LeftOperand leftOperand() const noexcept {
415  return lhs_;
416  }
417  //**********************************************************************************************
418 
419  //**Right operand access************************************************************************
424  inline RightOperand rightOperand() const noexcept {
425  return rhs_;
426  }
427  //**********************************************************************************************
428 
429  //**********************************************************************************************
435  template< typename T >
436  inline bool canAlias( const T* alias ) const noexcept {
437  return ( lhs_.canAlias( alias ) ) || ( rhs_.canAlias( alias ) );
438  }
439  //**********************************************************************************************
440 
441  //**********************************************************************************************
447  template< typename T >
448  inline bool isAliased( const T* alias ) const noexcept {
449  return ( lhs_.isAliased( alias ) ) || ( rhs_.isAliased( alias ) );
450  }
451  //**********************************************************************************************
452 
453  private:
454  //**Member variables****************************************************************************
455  LeftOperand lhs_;
456  RightOperand rhs_;
457  //**********************************************************************************************
458 
459  //**Assignment to dense vectors*****************************************************************
473  template< typename VT > // Type of the target dense vector
474  friend inline EnableIf_< UseAssign<VT> >
475  assign( DenseVector<VT,TF>& lhs, const SVecDVecDivExpr& rhs )
476  {
478 
479  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
480 
482 
483  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side sparse vector operand
484  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side dense vector operand
485 
486  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
487  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
488  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
489 
490  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
491  (~lhs)[element->index()] = element->value() / y[element->index()];
492  }
494  //**********************************************************************************************
495 
496  //**Assignment to sparse vectors****************************************************************
510  template< typename VT > // Type of the target sparse vector
511  friend inline EnableIf_< UseAssign<VT> >
512  assign( SparseVector<VT,TF>& lhs, const SVecDVecDivExpr& rhs )
513  {
515 
516  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
517 
519 
520  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side sparse vector operand
521  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side dense vector operand
522 
523  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
524  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
525  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
526 
527  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
528  (~lhs).append( element->index(), element->value() / y[element->index()] );
529  }
531  //**********************************************************************************************
532 
533  //**Addition assignment to dense vectors********************************************************
547  template< typename VT > // Type of the target dense vector
548  friend inline EnableIf_< UseAssign<VT> >
549  addAssign( DenseVector<VT,TF>& lhs, const SVecDVecDivExpr& rhs )
550  {
552 
553  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
554 
555  typedef ConstIterator_< RemoveReference_<CT1> > ConstIterator;
556 
557  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side sparse vector operand
558  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side dense vector operand
559 
560  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
561  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
562  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
563 
564  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
565  (~lhs)[element->index()] += element->value() / y[element->index()];
566  }
568  //**********************************************************************************************
569 
570  //**Addition assignment to sparse vectors*******************************************************
571  // No special implementation for the addition assignment to sparse vectors.
572  //**********************************************************************************************
573 
574  //**Subtraction assignment to dense vectors*****************************************************
588  template< typename VT > // Type of the target dense vector
589  friend inline EnableIf_< UseAssign<VT> >
590  subAssign( DenseVector<VT,TF>& lhs, const SVecDVecDivExpr& rhs )
591  {
593 
594  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
595 
596  typedef ConstIterator_< RemoveReference_<CT1> > ConstIterator;
597 
598  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side sparse vector operand
599  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side dense vector operand
600 
601  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
602  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
603  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
604 
605  for( ConstIterator element=x.begin(); element!=x.end(); ++element )
606  (~lhs)[element->index()] -= element->value() / y[element->index()];
607  }
609  //**********************************************************************************************
610 
611  //**Subtraction assignment to sparse vectors****************************************************
612  // No special implementation for the subtraction assignment to sparse vectors.
613  //**********************************************************************************************
614 
615  //**Multiplication assignment to dense vectors**************************************************
629  template< typename VT > // Type of the target dense vector
630  friend inline EnableIf_< UseAssign<VT> >
631  multAssign( DenseVector<VT,TF>& lhs, const SVecDVecDivExpr& rhs )
632  {
634 
635  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
636 
637  typedef ConstIterator_< RemoveReference_<CT1> > ConstIterator;
638 
639  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side sparse vector operand
640  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side dense vector operand
641 
642  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
643  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
644  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
645 
646  const ConstIterator end( x.end() );
647  ConstIterator begin( x.begin() );
648  size_t i( 0UL );
649 
650  for( ; begin!=end; ++begin ) {
651  const size_t index( begin->index() );
652  for( ; i<index; ++i )
653  reset( (~lhs)[i] );
654  (~lhs)[index] *= begin->value() / y[index];
655  ++i;
656  }
657 
658  for( ; i<rhs.size(); ++i )
659  reset( (~lhs)[i] );
660  }
662  //**********************************************************************************************
663 
664  //**Multiplication assignment to sparse vectors*************************************************
665  // No special implementation for the multiplication assignment to sparse vectors.
666  //**********************************************************************************************
667 
668  //**Compile time checks*************************************************************************
676  //**********************************************************************************************
677 };
678 //*************************************************************************************************
679 
680 
681 
682 
683 //=================================================================================================
684 //
685 // GLOBAL BINARY ARITHMETIC OPERATORS
686 //
687 //=================================================================================================
688 
689 //*************************************************************************************************
715 template< typename T1 // Type of the left-hand side sparse vector
716  , typename T2 // Type of the right-hand side dense vector
717  , bool TF > // Transpose flag
718 inline const SVecDVecDivExpr<T1,T2,TF>
720 {
722 
723  if( (~lhs).size() != (~rhs).size() ) {
724  BLAZE_THROW_INVALID_ARGUMENT( "Vector sizes do not match" );
725  }
726 
727  return SVecDVecDivExpr<T1,T2,TF>( ~lhs, ~rhs );
728 }
729 //*************************************************************************************************
730 
731 
732 
733 
734 //=================================================================================================
735 //
736 // SIZE SPECIALIZATIONS
737 //
738 //=================================================================================================
739 
740 //*************************************************************************************************
742 template< typename VT1, typename VT2, bool TF >
743 struct Size< SVecDVecDivExpr<VT1,VT2,TF> >
744  : public Max< Size<VT1>, Size<VT2> >
745 {};
747 //*************************************************************************************************
748 
749 
750 
751 
752 //=================================================================================================
753 //
754 // EXPRESSION TRAIT SPECIALIZATIONS
755 //
756 //=================================================================================================
757 
758 //*************************************************************************************************
760 template< typename VT1, typename VT2, bool TF, bool AF >
761 struct SubvectorExprTrait< SVecDVecDivExpr<VT1,VT2,TF>, AF >
762 {
763  public:
764  //**********************************************************************************************
765  using Type = DivExprTrait_< SubvectorExprTrait_<const VT1,AF>
766  , SubvectorExprTrait_<const VT2,AF> >;
767  //**********************************************************************************************
768 };
770 //*************************************************************************************************
771 
772 } // namespace blaze
773 
774 #endif
If_< IsExpression< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:153
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: SVecDVecDivExpr.h:348
#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.
Header file for auxiliary alias declarations.
Header file for the Max class template.
If_< IsExpression< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:156
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:70
Header file for the VecVecDivExpr base class.
size_t index() const
Access to the current index of the sparse element.
Definition: SVecDVecDivExpr.h:246
Header file for basic type definitions.
Header file for the SparseVector base class.
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: SVecDVecDivExpr.h:257
ConstIterator upperBound(size_t index) const
Returns an iterator to the first index greater then the given index.
Definition: SVecDVecDivExpr.h:403
Header file for the serial shim.
ConstIterator lowerBound(size_t index) const
Returns an iterator to the first index not less then the given index.
Definition: SVecDVecDivExpr.h:391
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: SVecDVecDivExpr.h:338
SVecDVecDivExpr< VT1, VT2, TF > This
Type of this SVecDVecDivExpr instance.
Definition: SVecDVecDivExpr.h:141
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:533
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: SVecDVecDivExpr.h:177
LeftOperand lhs_
Left-hand side sparse vector of the division expression.
Definition: SVecDVecDivExpr.h:455
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:723
Header file for the Computation base class.
Constraint on the data type.
Header file for the RequiresEvaluation type trait.
CompositeType_< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:104
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:323
RightOperand rhs_
Right-hand side dense vector of the division expression.
Definition: SVecDVecDivExpr.h:456
Constraint on the data type.
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
Header file for the DivExprTrait class template.
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:72
CompositeType_< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:103
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
const EnableIf_< IsNumeric< T2 >, DivExprTrait_< T1, T2 > > operator/(const DenseMatrix< T1, SO > &mat, T2 scalar)
Division operator for the division of a dense matrix by a scalar value ( ).
Definition: DMatScalarDivExpr.h:966
Header file for the ValueIndexPair class.
ResultType_< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:99
Header file for the IsTemporary type trait class.
DivExprTrait_< RN1, RN2 > ExprReturnType
Expression return type for the subscript operator.
Definition: SVecDVecDivExpr.h:117
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Header file for the If class template.
Expression object for sparse vector-dense vector divisions.The SVecDVecDivExpr class represents the c...
Definition: Forward.h:112
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecDivExpr.h:216
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2647
#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 T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
RightOperand vec_
Right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:287
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
Constraint on the data type.
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecDVecDivExpr.h:436
Constraint on the data type.
SVecDVecDivExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecDVecDivExpr class.
Definition: SVecDVecDivExpr.h:298
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: SVecDVecDivExpr.h:172
IfTrue_< useAssign, const ResultType, const SVecDVecDivExpr & > CompositeType
Data type for composite expression templates.
Definition: SVecDVecDivExpr.h:150
Header file for the exception macros of the math module.
DivTrait_< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecDVecDivExpr.h:142
Constraint on the data type.
ReferenceType reference
Reference return type.
Definition: SVecDVecDivExpr.h:187
Header file for all forward declarations for expression class templates.
Constraint on the data type.
ElementType ValueType
Type of the underlying pointers.
Definition: SVecDVecDivExpr.h:178
DifferenceType difference_type
Difference between two iterators.
Definition: SVecDVecDivExpr.h:188
Header file for the EnableIf class template.
ConstIterator(IteratorType it, RightOperand vec)
Constructor for the ConstIterator class.
Definition: SVecDVecDivExpr.h:194
IteratorType it_
Iterator over the elements of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:286
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecDVecDivExpr.h:358
typename DivTrait< T1, T2 >::Type DivTrait_
Auxiliary alias declaration for the DivTrait class template.The DivTrait_ alias declaration provides ...
Definition: DivTrait.h:245
ReturnType_< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecDVecDivExpr.h:101
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: SVecDVecDivExpr.h:268
PointerType pointer
Pointer return type.
Definition: SVecDVecDivExpr.h:186
Header file for run time assertion macros.
ElementType_< ResultType > ElementType
Resulting element type.
Definition: SVecDVecDivExpr.h:144
Header file for the division trait.
Iterator over the elements of the sparse vector-dense vector division expression. ...
Definition: SVecDVecDivExpr.h:167
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 & operator++()
Pre-increment operator.
Definition: SVecDVecDivExpr.h:205
ConstIterator_< RemoveReference_< LeftOperand > > IteratorType
Iterator type of the sparse vector expression.
Definition: SVecDVecDivExpr.h:175
ValueType & ReferenceType
Reference return type.
Definition: SVecDVecDivExpr.h:180
Header file for the reset shim.
IteratorCategory iterator_category
The iterator category.
Definition: SVecDVecDivExpr.h:184
#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
ReturnType value() const
Access to the current value of the sparse element.
Definition: SVecDVecDivExpr.h:236
Header file for the RemoveReference type trait.
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:223
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
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecDVecDivExpr.h:448
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:70
ValueType value_type
Type of the underlying pointers.
Definition: SVecDVecDivExpr.h:185
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecDVecDivExpr.h:143
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECDIVEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecDivExpr.h:109
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecDVecDivExpr.h:325
typename DivExprTrait< T1, T2 >::Type DivExprTrait_
Auxiliary alias declaration for the DivExprTrait class template.The DivExprTrait_ alias declaration p...
Definition: DivExprTrait.h:196
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecDVecDivExpr.h:368
ResultType_< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:100
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: SVecDVecDivExpr.h:279
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecDVecDivExpr.h:312
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:110
#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
ConstIterator find(size_t index) const
Searches for a specific vector element.
Definition: SVecDVecDivExpr.h:379
Header file for the SubvectorExprTrait class template.
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:403
ReturnType_< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: SVecDVecDivExpr.h:102
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecDVecDivExpr.h:414
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: SVecDVecDivExpr.h:424
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: SVecDVecDivExpr.h:226
Header file for the Size type trait.
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: SVecDVecDivExpr.h:181
#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
#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
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecDVecDivExpr.h:147
ValueType * PointerType
Pointer return type.
Definition: SVecDVecDivExpr.h:179