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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 <stdexcept>
52 #include <blaze/math/shims/Reset.h>
61 #include <blaze/util/Assert.h>
63 #include <blaze/util/EnableIf.h>
65 #include <blaze/util/SelectType.h>
66 #include <blaze/util/Types.h>
68 
69 
70 namespace blaze {
71 
72 //=================================================================================================
73 //
74 // CLASS DVECSVECMULTEXPR
75 //
76 //=================================================================================================
77 
78 //*************************************************************************************************
85 template< typename VT1 // Type of the left-hand side dense vector
86  , typename VT2 // Type of the right-hand side sparse vector
87  , bool TF > // Transpose flag
88 class DVecSVecMultExpr : public SparseVector< DVecSVecMultExpr<VT1,VT2,TF>, TF >
89  , private VecVecMultExpr
90  , private Computation
91 {
92  private:
93  //**Type definitions****************************************************************************
94  typedef typename VT1::ResultType RT1;
95  typedef typename VT2::ResultType RT2;
96  typedef typename VT1::ReturnType RN1;
97  typedef typename VT2::ReturnType RN2;
98  typedef typename VT1::CompositeType CT1;
99  typedef typename VT2::CompositeType CT2;
100  typedef typename VT1::TransposeType TT1;
101  typedef typename VT2::TransposeType TT2;
102  //**********************************************************************************************
103 
104  //**Return type evaluation**********************************************************************
106 
111  enum { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value };
112 
115  //**********************************************************************************************
116 
117  //**Evaluation strategy*************************************************************************
119 
126 
128  template< typename VT >
130  struct UseAssign {
131  enum { value = useAssign };
132  };
134  //**********************************************************************************************
135 
136  public:
137  //**Type definitions****************************************************************************
142 
145 
148 
150  typedef typename SelectType< IsExpression<VT1>::value, const VT1, const VT1& >::Type LeftOperand;
151 
153  typedef typename SelectType< IsExpression<VT2>::value, const VT2, const VT2& >::Type RightOperand;
154  //**********************************************************************************************
155 
156  //**Compilation flags***************************************************************************
158  enum { smpAssignable = 0 };
159  //**********************************************************************************************
160 
161  //**ConstIterator class definition**************************************************************
165  {
166  public:
167  //**Type definitions*************************************************************************
170 
173 
174  typedef std::forward_iterator_tag IteratorCategory;
175  typedef Element ValueType;
179 
180  // STL iterator requirements
186  //*******************************************************************************************
187 
188  //**Constructor******************************************************************************
191  inline ConstIterator( LeftOperand vec, IteratorType it )
192  : vec_( vec ) // Left-hand side dense vector expression
193  , it_ ( it ) // Iterator over the elements of the right-hand side sparse vector expression
194  {}
195  //*******************************************************************************************
196 
197  //**Prefix increment operator****************************************************************
203  ++it_;
204  return *this;
205  }
206  //*******************************************************************************************
207 
208  //**Element access operator******************************************************************
213  inline const Element operator*() const {
214  return Element( vec_[it_->index()] * it_->value(), it_->index() );
215  }
216  //*******************************************************************************************
217 
218  //**Element access operator******************************************************************
223  inline const ConstIterator* operator->() const {
224  return this;
225  }
226  //*******************************************************************************************
227 
228  //**Value function***************************************************************************
233  inline ReturnType value() const {
234  return vec_[it_->index()] * it_->value();
235  }
236  //*******************************************************************************************
237 
238  //**Index function***************************************************************************
243  inline size_t index() const {
244  return it_->index();
245  }
246  //*******************************************************************************************
247 
248  //**Equality operator************************************************************************
254  inline bool operator==( const ConstIterator& rhs ) const {
255  return it_ == rhs.it_;
256  }
257  //*******************************************************************************************
258 
259  //**Inequality operator**********************************************************************
265  inline bool operator!=( const ConstIterator& rhs ) const {
266  return it_ != rhs.it_;
267  }
268  //*******************************************************************************************
269 
270  //**Subtraction operator*********************************************************************
276  inline DifferenceType operator-( const ConstIterator& rhs ) const {
277  return it_ - rhs.it_;
278  }
279  //*******************************************************************************************
280 
281  private:
282  //**Member variables*************************************************************************
283  LeftOperand vec_;
285  //*******************************************************************************************
286  };
287  //**********************************************************************************************
288 
289  //**Constructor*********************************************************************************
295  explicit inline DVecSVecMultExpr( const VT1& lhs, const VT2& rhs )
296  : lhs_( lhs ) // Left-hand side dense vector of the multiplication expression
297  , rhs_( rhs ) // Right-hand side sparse vector of the multiplication expression
298  {
299  BLAZE_INTERNAL_ASSERT( lhs.size() == rhs.size(), "Invalid vector sizes" );
300  }
301  //**********************************************************************************************
302 
303  //**Subscript operator**************************************************************************
309  inline ReturnType operator[]( size_t index ) const {
310  BLAZE_INTERNAL_ASSERT( index < lhs_.size(), "Invalid vector access index" );
311  return lhs_[index] * rhs_[index];
312  }
313  //**********************************************************************************************
314 
315  //**Begin function******************************************************************************
320  inline ConstIterator begin() const {
321  return ConstIterator( lhs_, rhs_.begin() );
322  }
323  //**********************************************************************************************
324 
325  //**End function********************************************************************************
330  inline ConstIterator end() const {
331  return ConstIterator( lhs_, rhs_.end() );
332  }
333  //**********************************************************************************************
334 
335  //**Size function*******************************************************************************
340  inline size_t size() const {
341  return lhs_.size();
342  }
343  //**********************************************************************************************
344 
345  //**NonZeros function***************************************************************************
350  inline size_t nonZeros() const {
351  return rhs_.nonZeros();
352  }
353  //**********************************************************************************************
354 
355  //**Left operand access*************************************************************************
360  inline LeftOperand leftOperand() const {
361  return lhs_;
362  }
363  //**********************************************************************************************
364 
365  //**Right operand access************************************************************************
370  inline RightOperand rightOperand() const {
371  return rhs_;
372  }
373  //**********************************************************************************************
374 
375  //**********************************************************************************************
381  template< typename T >
382  inline bool canAlias( const T* alias ) const {
383  return ( lhs_.canAlias( alias ) || rhs_.canAlias( alias ) );
384  }
385  //**********************************************************************************************
386 
387  //**********************************************************************************************
393  template< typename T >
394  inline bool isAliased( const T* alias ) const {
395  return ( lhs_.isAliased( alias ) || rhs_.isAliased( alias ) );
396  }
397  //**********************************************************************************************
398 
399  private:
400  //**Member variables****************************************************************************
401  LeftOperand lhs_;
402  RightOperand rhs_;
403  //**********************************************************************************************
404 
405  //**Assignment to dense vectors*****************************************************************
419  template< typename VT > // Type of the target dense vector
420  friend inline typename EnableIf< UseAssign<VT> >::Type
421  assign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
422  {
424 
425  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
426 
428 
429  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
430  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
431 
432  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
433  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
434  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
435 
436  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
437  (~lhs)[element->index()] = x[element->index()] * element->value();
438  }
440  //**********************************************************************************************
441 
442  //**Assignment to sparse vectors****************************************************************
456  template< typename VT > // Type of the target sparse vector
457  friend inline typename EnableIf< UseAssign<VT> >::Type
458  assign( SparseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
459  {
461 
462  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
463 
465 
466  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
467  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
468 
469  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
470  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
471  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
472 
473  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
474  (~lhs).append( element->index(), x[element->index()] * element->value() );
475  }
477  //**********************************************************************************************
478 
479  //**Addition assignment to dense vectors********************************************************
493  template< typename VT > // Type of the target dense vector
494  friend inline typename EnableIf< UseAssign<VT> >::Type
495  addAssign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
496  {
498 
499  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
500 
502 
503  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
504  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
505 
506  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
507  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
508  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
509 
510  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
511  (~lhs)[element->index()] += x[element->index()] * element->value();
512  }
514  //**********************************************************************************************
515 
516  //**Addition assignment to sparse vectors*******************************************************
517  // No special implementation for the addition assignment to sparse vectors.
518  //**********************************************************************************************
519 
520  //**Subtraction assignment to dense vectors*****************************************************
534  template< typename VT > // Type of the target dense vector
535  friend inline typename EnableIf< UseAssign<VT> >::Type
536  subAssign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
537  {
539 
540  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
541 
543 
544  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
545  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
546 
547  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
548  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
549  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
550 
551  for( ConstIterator element=y.begin(); element!=y.end(); ++element )
552  (~lhs)[element->index()] -= x[element->index()] * element->value();
553  }
555  //**********************************************************************************************
556 
557  //**Subtraction assignment to sparse vectors****************************************************
558  // No special implementation for the subtraction assignment to sparse vectors.
559  //**********************************************************************************************
560 
561  //**Multiplication assignment to dense vectors**************************************************
575  template< typename VT > // Type of the target dense vector
576  friend inline typename EnableIf< UseAssign<VT> >::Type
577  multAssign( DenseVector<VT,TF>& lhs, const DVecSVecMultExpr& rhs )
578  {
580 
581  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
582 
584 
585  CT1 x( serial( rhs.lhs_ ) ); // Evaluation of the left-hand side dense vector operand
586  CT2 y( serial( rhs.rhs_ ) ); // Evaluation of the right-hand side sparse vector operand
587 
588  BLAZE_INTERNAL_ASSERT( x.size() == rhs.lhs_.size(), "Invalid vector size" );
589  BLAZE_INTERNAL_ASSERT( y.size() == rhs.rhs_.size(), "Invalid vector size" );
590  BLAZE_INTERNAL_ASSERT( x.size() == (~lhs).size() , "Invalid vector size" );
591 
592  const ConstIterator end( y.end() );
593  ConstIterator begin( y.begin() );
594  size_t i( 0UL );
595 
596  for( ; begin!=end; ++begin ) {
597  const size_t index( begin->index() );
598  for( ; i<index; ++i )
599  reset( (~lhs)[i] );
600  (~lhs)[index] *= x[index] * begin->value();
601  ++i;
602  }
603 
604  for( ; i<(~lhs).size(); ++i )
605  reset( (~lhs)[i] );
606  }
608  //**********************************************************************************************
609 
610  //**Multiplication assignment to sparse vectors*************************************************
611  // No special implementation for the multiplication assignment to sparse vectors.
612  //**********************************************************************************************
613 
614  //**Compile time checks*************************************************************************
621  //**********************************************************************************************
622 };
623 //*************************************************************************************************
624 
625 
626 
627 
628 //=================================================================================================
629 //
630 // GLOBAL BINARY ARITHMETIC OPERATORS
631 //
632 //=================================================================================================
633 
634 //*************************************************************************************************
661 template< typename T1 // Type of the left-hand side dense vector
662  , typename T2 // Type of the right-hand side sparse vector
663  , bool TF > // Transpose flag
664 inline const DVecSVecMultExpr<T1,T2,TF>
666 {
668 
669  if( (~lhs).size() != (~rhs).size() )
670  throw std::invalid_argument( "Vector sizes do not match" );
671 
672  return DVecSVecMultExpr<T1,T2,TF>( ~lhs, ~rhs );
673 }
674 //*************************************************************************************************
675 
676 
677 
678 
679 //=================================================================================================
680 //
681 // EXPRESSION TRAIT SPECIALIZATIONS
682 //
683 //=================================================================================================
684 
685 //*************************************************************************************************
687 template< typename VT1, typename VT2, bool TF, bool AF >
688 struct SubvectorExprTrait< DVecSVecMultExpr<VT1,VT2,TF>, AF >
689 {
690  public:
691  //**********************************************************************************************
692  typedef typename MultExprTrait< typename SubvectorExprTrait<const VT1,AF>::Type
693  , typename SubvectorExprTrait<const VT2,AF>::Type >::Type Type;
694  //**********************************************************************************************
695 };
697 //*************************************************************************************************
698 
699 } // namespace blaze
700 
701 #endif
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: DVecSVecMultExpr.h:178
Pointer difference type of the Blaze library.
LeftOperand vec_
Left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:283
VT2::TransposeType TT2
Transpose type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:101
ConstIterator(LeftOperand vec, IteratorType it)
Constructor for the ConstIterator class.
Definition: DVecSVecMultExpr.h:191
void reset(DynamicMatrix< Type, SO > &m)
Resetting the given dense matrix.
Definition: DynamicMatrix.h:4599
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:87
const Element operator*() const
Direct access to the sparse vector element at the current iterator position.
Definition: DVecSVecMultExpr.h:213
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:4329
size_t index() const
Access to the current index of the sparse element.
Definition: DVecSVecMultExpr.h:243
Header file for the SparseVector base class.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: DVecSVecMultExpr.h:350
SelectType< IsExpression< VT1 >::value, const VT1, const VT1 & >::Type LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:150
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:199
Element ValueType
Type of the underlying pointers.
Definition: DVecSVecMultExpr.h:175
RightOperand rightOperand() const
Returns the right-hand side sparse vector operand.
Definition: DVecSVecMultExpr.h:370
VT1::CompositeType CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:98
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2408
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:251
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:690
Expression object for dense vector-sparse vector multiplications.The DVecSVecMultExpr class represent...
Definition: DVecSVecMultExpr.h:88
Header file for the Computation base class.
ValueType value_type
Type of the underlying pointers.
Definition: DVecSVecMultExpr.h:182
Header file for the RequiresEvaluation type trait.
VT1::TransposeType TT1
Transpose type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:100
IteratorCategory iterator_category
The iterator category.
Definition: DVecSVecMultExpr.h:181
RightOperand rhs_
Right-hand side sparse vector of the multiplication expression.
Definition: DVecSVecMultExpr.h:402
Constraint on the data type.
std::forward_iterator_tag IteratorCategory
The iterator category.
Definition: DVecSVecMultExpr.h:174
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:90
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two expression iterators.
Definition: DVecSVecMultExpr.h:276
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: DVecSVecMultExpr.h:144
Header file for the ValueIndexPair class.
ConstIterator & operator++()
Pre-increment operator.
Definition: DVecSVecMultExpr.h:202
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:2412
ResultType::ElementType ElementType
Resulting element type.
Definition: DVecSVecMultExpr.h:141
SelectType< useAssign, const ResultType, const DVecSVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: DVecSVecMultExpr.h:147
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:271
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
RemoveReference< RightOperand >::Type::ConstIterator IteratorType
Iterator type of the sparse vector expression.
Definition: DVecSVecMultExpr.h:172
#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
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: DVecSVecMultExpr.h:140
Constraint on the data type.
DifferenceType difference_type
Difference between two iterators.
Definition: DVecSVecMultExpr.h:185
SelectType< IsExpression< VT2 >::value, const VT2, const VT2 & >::Type RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:153
VT1::ResultType RT1
Result type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:94
CompressedMatrix< Type, false > TransposeType
Transpose type for expression template evaluations.
Definition: CompressedMatrix.h:2405
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:361
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
ReturnType value() const
Access to the current value of the sparse element.
Definition: DVecSVecMultExpr.h:233
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DVecSVecMultExpr.h:309
Header file for the EnableIf class template.
VT2::ResultType RT2
Result type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:95
Header file for the serial shim.
VT1::ReturnType RN1
Return type of the left-hand side dense vector expression.
Definition: DVecSVecMultExpr.h:96
VT2::CompositeType CT2
Composite type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:99
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DVecSVecMultExpr.h:265
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2407
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
ReferenceType reference
Reference return type.
Definition: DVecSVecMultExpr.h:184
Iterator over the elements of the dense vector-sparse vector multiplication expression.
Definition: DVecSVecMultExpr.h:164
Header file for run time assertion macros.
ConstIterator begin() const
Returns an iterator to the first non-zero element of the sparse vector.
Definition: DVecSVecMultExpr.h:320
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:301
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
Header file for the reset shim.
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:331
ValueType & ReferenceType
Reference return type.
Definition: DVecSVecMultExpr.h:177
ConstIterator end() const
Returns an iterator just past the last non-zero element of the sparse vector.
Definition: DVecSVecMultExpr.h:330
Header file for the RemoveReference type trait.
PointerType pointer
Pointer return type.
Definition: DVecSVecMultExpr.h:183
const ConstIterator * operator->() const
Direct access to the sparse vector element at the current iterator position.
Definition: DVecSVecMultExpr.h:223
VT2::ReturnType RN2
Return type of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:97
ValueIndexPair< ElementType > Element
Element type of the sparse vector expression.
Definition: DVecSVecMultExpr.h:169
LeftOperand leftOperand() const
Returns the left-hand side dense vector operand.
Definition: DVecSVecMultExpr.h:360
#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
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: DVecSVecMultExpr.h:382
Index-value-pair for sparse vectors and matrices.The ValueIndexPair class represents a single index-v...
Definition: ValueIndexPair.h:69
ValueType * PointerType
Pointer return type.
Definition: DVecSVecMultExpr.h:176
LeftOperand lhs_
Left-hand side dense vector of the multiplication expression.
Definition: DVecSVecMultExpr.h:401
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:59
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:108
#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
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: DVecSVecMultExpr.h:394
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2403
Header file for basic type definitions.
Header file for the SubvectorExprTrait class template.
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DVecSVecMultExpr.h:254
MultTrait< RT1, RT2 >::Type ResultType
Result type for expression template evaluations.
Definition: DVecSVecMultExpr.h:139
DVecSVecMultExpr< VT1, VT2, TF > This
Type of this DVecSVecMultExpr instance.
Definition: DVecSVecMultExpr.h:138
IteratorType it_
Iterator over the elements of the right-hand side sparse vector expression.
Definition: DVecSVecMultExpr.h:284
DVecSVecMultExpr(const VT1 &lhs, const VT2 &rhs)
Constructor for the DVecSVecMultExpr class.
Definition: DVecSVecMultExpr.h:295
MultExprTrait< RN1, RN2 >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: DVecSVecMultExpr.h:114
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
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
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.
size_t size() const
Returns the current size/dimension of the vector.
Definition: DVecSVecMultExpr.h:340