DVecDVecSubExpr.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_EXPRESSIONS_DVECDVECSUBEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_DVECDVECSUBEXPR_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <iterator>
44 #include <blaze/math/Aliases.h>
49 #include <blaze/math/Exception.h>
55 #include <blaze/math/SIMD.h>
66 #include <blaze/system/Inline.h>
68 #include <blaze/util/Assert.h>
69 #include <blaze/util/EnableIf.h>
72 #include <blaze/util/mpl/And.h>
73 #include <blaze/util/mpl/If.h>
74 #include <blaze/util/mpl/Maximum.h>
75 #include <blaze/util/Types.h>
76 
77 
78 namespace blaze {
79 
80 //=================================================================================================
81 //
82 // CLASS DVECDVECSUBEXPR
83 //
84 //=================================================================================================
85 
86 //*************************************************************************************************
93 template< typename VT1 // Type of the left-hand side dense vector
94  , typename VT2 // Type of the right-hand side dense vector
95  , bool TF > // Transpose flag
97  : public VecVecSubExpr< DenseVector< DVecDVecSubExpr<VT1,VT2,TF>, TF > >
98  , private Computation
99 {
100  private:
101  //**Type definitions****************************************************************************
110  //**********************************************************************************************
111 
112  //**Return type evaluation**********************************************************************
114 
119  enum : bool { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value };
120 
123  //**********************************************************************************************
124 
125  //**Serial evaluation strategy******************************************************************
127 
133  enum : bool { useAssign = ( RequiresEvaluation<VT1>::value || RequiresEvaluation<VT2>::value || !returnExpr ) };
134 
136  template< typename VT >
138  struct UseAssign {
139  enum : bool { value = useAssign };
140  };
142  //**********************************************************************************************
143 
144  //**Parallel evaluation strategy****************************************************************
146 
152  template< typename VT >
153  struct UseSMPAssign {
154  enum : bool { value = ( !VT1::smpAssignable || !VT2::smpAssignable ) && useAssign };
155  };
157  //**********************************************************************************************
158 
159  public:
160  //**Type definitions****************************************************************************
165 
168 
171 
173  using LeftOperand = If_< IsExpression<VT1>, const VT1, const VT1& >;
174 
176  using RightOperand = If_< IsExpression<VT2>, const VT2, const VT2& >;
177  //**********************************************************************************************
178 
179  //**ConstIterator class definition**************************************************************
183  {
184  public:
185  //**Type definitions*************************************************************************
186  using IteratorCategory = std::random_access_iterator_tag;
191 
192  // STL iterator requirements
198 
201 
204  //*******************************************************************************************
205 
206  //**Constructor******************************************************************************
212  explicit inline ConstIterator( LeftIteratorType left, RightIteratorType right )
213  : left_ ( left ) // Iterator to the current left-hand side element
214  , right_( right ) // Iterator to the current right-hand side element
215  {}
216  //*******************************************************************************************
217 
218  //**Addition assignment operator*************************************************************
224  inline ConstIterator& operator+=( size_t inc ) {
225  left_ += inc;
226  right_ += inc;
227  return *this;
228  }
229  //*******************************************************************************************
230 
231  //**Subtraction assignment operator**********************************************************
237  inline ConstIterator& operator-=( size_t dec ) {
238  left_ -= dec;
239  right_ -= dec;
240  return *this;
241  }
242  //*******************************************************************************************
243 
244  //**Prefix increment operator****************************************************************
250  ++left_;
251  ++right_;
252  return *this;
253  }
254  //*******************************************************************************************
255 
256  //**Postfix increment operator***************************************************************
261  inline const ConstIterator operator++( int ) {
262  return ConstIterator( left_++, right_++ );
263  }
264  //*******************************************************************************************
265 
266  //**Prefix decrement operator****************************************************************
272  --left_;
273  --right_;
274  return *this;
275  }
276  //*******************************************************************************************
277 
278  //**Postfix decrement operator***************************************************************
283  inline const ConstIterator operator--( int ) {
284  return ConstIterator( left_--, right_-- );
285  }
286  //*******************************************************************************************
287 
288  //**Element access operator******************************************************************
293  inline ReturnType operator*() const {
294  return (*left_) - (*right_);
295  }
296  //*******************************************************************************************
297 
298  //**Load function****************************************************************************
303  inline auto load() const noexcept {
304  return left_.load() - right_.load();
305  }
306  //*******************************************************************************************
307 
308  //**Equality operator************************************************************************
314  inline bool operator==( const ConstIterator& rhs ) const {
315  return left_ == rhs.left_;
316  }
317  //*******************************************************************************************
318 
319  //**Inequality operator**********************************************************************
325  inline bool operator!=( const ConstIterator& rhs ) const {
326  return left_ != rhs.left_;
327  }
328  //*******************************************************************************************
329 
330  //**Less-than operator***********************************************************************
336  inline bool operator<( const ConstIterator& rhs ) const {
337  return left_ < rhs.left_;
338  }
339  //*******************************************************************************************
340 
341  //**Greater-than operator********************************************************************
347  inline bool operator>( const ConstIterator& rhs ) const {
348  return left_ > rhs.left_;
349  }
350  //*******************************************************************************************
351 
352  //**Less-or-equal-than operator**************************************************************
358  inline bool operator<=( const ConstIterator& rhs ) const {
359  return left_ <= rhs.left_;
360  }
361  //*******************************************************************************************
362 
363  //**Greater-or-equal-than operator***********************************************************
369  inline bool operator>=( const ConstIterator& rhs ) const {
370  return left_ >= rhs.left_;
371  }
372  //*******************************************************************************************
373 
374  //**Subtraction operator*********************************************************************
380  inline DifferenceType operator-( const ConstIterator& rhs ) const {
381  return left_ - rhs.left_;
382  }
383  //*******************************************************************************************
384 
385  //**Addition operator************************************************************************
392  friend inline const ConstIterator operator+( const ConstIterator& it, size_t inc ) {
393  return ConstIterator( it.left_ + inc, it.right_ + inc );
394  }
395  //*******************************************************************************************
396 
397  //**Addition operator************************************************************************
404  friend inline const ConstIterator operator+( size_t inc, const ConstIterator& it ) {
405  return ConstIterator( it.left_ + inc, it.right_ + inc );
406  }
407  //*******************************************************************************************
408 
409  //**Subtraction operator*********************************************************************
416  friend inline const ConstIterator operator-( const ConstIterator& it, size_t dec ) {
417  return ConstIterator( it.left_ - dec, it.right_ - dec );
418  }
419  //*******************************************************************************************
420 
421  private:
422  //**Member variables*************************************************************************
425  //*******************************************************************************************
426  };
427  //**********************************************************************************************
428 
429  //**Compilation flags***************************************************************************
431  enum : bool { simdEnabled = VT1::simdEnabled && VT2::simdEnabled &&
433 
435  enum : bool { smpAssignable = VT1::smpAssignable && VT2::smpAssignable };
436  //**********************************************************************************************
437 
438  //**SIMD properties*****************************************************************************
440  enum : size_t { SIMDSIZE = SIMDTrait<ElementType>::size };
441  //**********************************************************************************************
442 
443  //**Constructor*********************************************************************************
449  explicit inline DVecDVecSubExpr( const VT1& lhs, const VT2& rhs ) noexcept
450  : lhs_( lhs ) // Left-hand side dense vector of the subtraction expression
451  , rhs_( rhs ) // Right-hand side dense vector of the subtraction expression
452  {
453  BLAZE_INTERNAL_ASSERT( lhs.size() == rhs.size(), "Invalid vector sizes" );
454  }
455  //**********************************************************************************************
456 
457  //**Subscript operator**************************************************************************
463  inline ReturnType operator[]( size_t index ) const {
464  BLAZE_INTERNAL_ASSERT( index < lhs_.size(), "Invalid vector access index" );
465  return lhs_[index] - rhs_[index];
466  }
467  //**********************************************************************************************
468 
469  //**At function*********************************************************************************
476  inline ReturnType at( size_t index ) const {
477  if( index >= lhs_.size() ) {
478  BLAZE_THROW_OUT_OF_RANGE( "Invalid vector access index" );
479  }
480  return (*this)[index];
481  }
482  //**********************************************************************************************
483 
484  //**Load function*******************************************************************************
490  BLAZE_ALWAYS_INLINE auto load( size_t index ) const noexcept {
491  BLAZE_INTERNAL_ASSERT( index < lhs_.size() , "Invalid vector access index" );
492  BLAZE_INTERNAL_ASSERT( index % SIMDSIZE == 0UL, "Invalid vector access index" );
493  return lhs_.load( index ) - rhs_.load( index );
494  }
495  //**********************************************************************************************
496 
497  //**Begin function******************************************************************************
502  inline ConstIterator begin() const {
503  return ConstIterator( lhs_.begin(), rhs_.begin() );
504  }
505  //**********************************************************************************************
506 
507  //**End function********************************************************************************
512  inline ConstIterator end() const {
513  return ConstIterator( lhs_.end(), rhs_.end() );
514  }
515  //**********************************************************************************************
516 
517  //**Size function*******************************************************************************
522  inline size_t size() const noexcept {
523  return lhs_.size();
524  }
525  //**********************************************************************************************
526 
527  //**Left operand access*************************************************************************
532  inline LeftOperand leftOperand() const noexcept {
533  return lhs_;
534  }
535  //**********************************************************************************************
536 
537  //**Right operand access************************************************************************
542  inline RightOperand rightOperand() const noexcept {
543  return rhs_;
544  }
545  //**********************************************************************************************
546 
547  //**********************************************************************************************
553  template< typename T >
554  inline bool canAlias( const T* alias ) const noexcept {
555  return ( IsExpression<VT1>::value && ( RequiresEvaluation<VT1>::value ? lhs_.isAliased( alias ) : lhs_.canAlias( alias ) ) ) ||
556  ( IsExpression<VT2>::value && ( RequiresEvaluation<VT2>::value ? rhs_.isAliased( alias ) : rhs_.canAlias( alias ) ) );
557  }
558  //**********************************************************************************************
559 
560  //**********************************************************************************************
566  template< typename T >
567  inline bool isAliased( const T* alias ) const noexcept {
568  return ( lhs_.isAliased( alias ) || rhs_.isAliased( alias ) );
569  }
570  //**********************************************************************************************
571 
572  //**********************************************************************************************
577  inline bool isAligned() const noexcept {
578  return lhs_.isAligned() && rhs_.isAligned();
579  }
580  //**********************************************************************************************
581 
582  //**********************************************************************************************
587  inline bool canSMPAssign() const noexcept {
588  return lhs_.canSMPAssign() || rhs_.canSMPAssign() ||
589  ( size() > SMP_DVECDVECSUB_THRESHOLD );
590  }
591  //**********************************************************************************************
592 
593  private:
594  //**Member variables****************************************************************************
597  //**********************************************************************************************
598 
599  //**Assignment to dense vectors*****************************************************************
613  template< typename VT > // Type of the target dense vector
614  friend inline EnableIf_< UseAssign<VT> >
615  assign( DenseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
616  {
618 
619  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
620 
621  if( !IsComputation<VT1>::value && isSame( ~lhs, rhs.lhs_ ) ) {
622  subAssign( ~lhs, rhs.rhs_ );
623  }
624  else {
625  assign ( ~lhs, rhs.lhs_ );
626  subAssign( ~lhs, rhs.rhs_ );
627  }
628  }
630  //**********************************************************************************************
631 
632  //**Assignment to sparse vectors****************************************************************
646  template< typename VT > // Type of the target sparse vector
647  friend inline EnableIf_< UseAssign<VT> >
648  assign( SparseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
649  {
651 
655 
656  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
657 
658  const ResultType tmp( serial( rhs ) );
659  assign( ~lhs, tmp );
660  }
662  //**********************************************************************************************
663 
664  //**Addition assignment to dense vectors********************************************************
678  template< typename VT > // Type of the target dense vector
679  friend inline EnableIf_< UseAssign<VT> >
680  addAssign( DenseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
681  {
683 
684  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
685 
686  addAssign( ~lhs, rhs.lhs_ );
687  subAssign( ~lhs, rhs.rhs_ );
688  }
690  //**********************************************************************************************
691 
692  //**Addition assignment to sparse vectors*******************************************************
693  // No special implementation for the addition assignment to sparse vectors.
694  //**********************************************************************************************
695 
696  //**Subtraction assignment to dense vectors*****************************************************
710  template< typename VT > // Type of the target dense vector
711  friend inline EnableIf_< UseAssign<VT> >
712  subAssign( DenseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
713  {
715 
716  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
717 
718  subAssign( ~lhs, rhs.lhs_ );
719  addAssign( ~lhs, rhs.rhs_ );
720  }
722  //**********************************************************************************************
723 
724  //**Subtraction assignment to sparse vectors****************************************************
725  // No special implementation for the subtraction assignment to sparse vectors.
726  //**********************************************************************************************
727 
728  //**Multiplication assignment to dense vectors**************************************************
742  template< typename VT > // Type of the target dense vector
743  friend inline EnableIf_< UseAssign<VT> >
744  multAssign( DenseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
745  {
747 
751 
752  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
753 
754  const ResultType tmp( serial( rhs ) );
755  multAssign( ~lhs, tmp );
756  }
758  //**********************************************************************************************
759 
760  //**Multiplication assignment to sparse vectors*************************************************
761  // No special implementation for the multiplication assignment to sparse vectors.
762  //**********************************************************************************************
763 
764  //**Division assignment to dense vectors********************************************************
778  template< typename VT > // Type of the target dense vector
779  friend inline EnableIf_< UseAssign<VT> >
780  divAssign( DenseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
781  {
783 
787 
788  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
789 
790  const ResultType tmp( serial( rhs ) );
791  divAssign( ~lhs, tmp );
792  }
794  //**********************************************************************************************
795 
796  //**Division assignment to sparse vectors*******************************************************
797  // No special implementation for the division assignment to sparse vectors.
798  //**********************************************************************************************
799 
800  //**SMP assignment to dense vectors*************************************************************
814  template< typename VT > // Type of the target dense vector
815  friend inline EnableIf_< UseSMPAssign<VT> >
816  smpAssign( DenseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
817  {
819 
820  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
821 
822  if( !IsComputation<VT1>::value && isSame( ~lhs, rhs.lhs_ ) ) {
823  smpSubAssign( ~lhs, rhs.rhs_ );
824  }
825  else {
826  smpAssign ( ~lhs, rhs.lhs_ );
827  smpSubAssign( ~lhs, rhs.rhs_ );
828  }
829  }
831  //**********************************************************************************************
832 
833  //**SMP assignment to sparse vectors************************************************************
847  template< typename VT > // Type of the target sparse vector
848  friend inline EnableIf_< UseSMPAssign<VT> >
849  smpAssign( SparseVector<VT,TF>& lhs, const DVecDVecSubExpr& rhs )
850  {
852 
856 
857  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
858 
859  const ResultType tmp( rhs );
860  smpAssign( ~lhs, tmp );
861  }
863  //**********************************************************************************************
864 
865  //**SMP addition assignment to dense vectors****************************************************
879  template< typename VT > // Type of the target dense vector
880  friend inline EnableIf_< UseSMPAssign<VT> >
882  {
884 
885  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
886 
887  smpAddAssign( ~lhs, rhs.lhs_ );
888  smpSubAssign( ~lhs, rhs.rhs_ );
889  }
891  //**********************************************************************************************
892 
893  //**SMP addition assignment to sparse vectors***************************************************
894  // No special implementation for the SMP addition assignment to sparse vectors.
895  //**********************************************************************************************
896 
897  //**SMP subtraction assignment to dense vectors*************************************************
911  template< typename VT > // Type of the target dense vector
912  friend inline EnableIf_< UseSMPAssign<VT> >
914  {
916 
917  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
918 
919  smpSubAssign( ~lhs, rhs.lhs_ );
920  smpAddAssign( ~lhs, rhs.rhs_ );
921  }
923  //**********************************************************************************************
924 
925  //**SMP subtraction assignment to sparse vectors************************************************
926  // No special implementation for the SMP subtraction assignment to sparse vectors.
927  //**********************************************************************************************
928 
929  //**SMP multiplication assignment to dense vectors**********************************************
943  template< typename VT > // Type of the target dense vector
944  friend inline EnableIf_< UseSMPAssign<VT> >
946  {
948 
952 
953  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
954 
955  const ResultType tmp( rhs );
956  smpMultAssign( ~lhs, tmp );
957  }
959  //**********************************************************************************************
960 
961  //**SMP multiplication assignment to sparse vectors*********************************************
962  // No special implementation for the SMP multiplication assignment to sparse vectors.
963  //**********************************************************************************************
964 
965  //**SMP division assignment to dense vectors****************************************************
979  template< typename VT > // Type of the target dense vector
980  friend inline EnableIf_< UseSMPAssign<VT> >
982  {
984 
988 
989  BLAZE_INTERNAL_ASSERT( (~lhs).size() == rhs.size(), "Invalid vector sizes" );
990 
991  const ResultType tmp( rhs );
992  smpDivAssign( ~lhs, tmp );
993  }
995  //**********************************************************************************************
996 
997  //**SMP division assignment to sparse vectors***************************************************
998  // No special implementation for the SMP division assignment to sparse vectors.
999  //**********************************************************************************************
1000 
1001  //**Compile time checks*************************************************************************
1009  //**********************************************************************************************
1010 };
1011 //*************************************************************************************************
1012 
1013 
1014 
1015 
1016 //=================================================================================================
1017 //
1018 // GLOBAL BINARY ARITHMETIC OPERATORS
1019 //
1020 //=================================================================================================
1021 
1022 //*************************************************************************************************
1046 template< typename VT1 // Type of the left-hand side dense vector
1047  , typename VT2 // Type of the right-hand side dense vector
1048  , bool TF > // Transpose flag
1049 inline decltype(auto)
1050  operator-( const DenseVector<VT1,TF>& lhs, const DenseVector<VT2,TF>& rhs )
1051 {
1053 
1054  if( (~lhs).size() != (~rhs).size() ) {
1055  BLAZE_THROW_INVALID_ARGUMENT( "Vector sizes do not match" );
1056  }
1057 
1059  return ReturnType( ~lhs, ~rhs );
1060 }
1061 //*************************************************************************************************
1062 
1063 
1064 
1065 
1066 //=================================================================================================
1067 //
1068 // SIZE SPECIALIZATIONS
1069 //
1070 //=================================================================================================
1071 
1072 //*************************************************************************************************
1074 template< typename VT1, typename VT2, bool TF >
1075 struct Size< DVecDVecSubExpr<VT1,VT2,TF> >
1076  : public Maximum< Size<VT1>, Size<VT2> >
1077 {};
1079 //*************************************************************************************************
1080 
1081 
1082 
1083 
1084 //=================================================================================================
1085 //
1086 // ISALIGNED SPECIALIZATIONS
1087 //
1088 //=================================================================================================
1089 
1090 //*************************************************************************************************
1092 template< typename VT1, typename VT2, bool TF >
1093 struct IsAligned< DVecDVecSubExpr<VT1,VT2,TF> >
1094  : public BoolConstant< And< IsAligned<VT1>, IsAligned<VT2> >::value >
1095 {};
1097 //*************************************************************************************************
1098 
1099 
1100 
1101 
1102 //=================================================================================================
1103 //
1104 // ISPADDED SPECIALIZATIONS
1105 //
1106 //=================================================================================================
1107 
1108 //*************************************************************************************************
1110 template< typename VT1, typename VT2, bool TF >
1111 struct IsPadded< DVecDVecSubExpr<VT1,VT2,TF> >
1112  : public BoolConstant< And< IsPadded<VT1>, IsPadded<VT2> >::value >
1113 {};
1115 //*************************************************************************************************
1116 
1117 } // namespace blaze
1118 
1119 #endif
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:325
RightIteratorType right_
Iterator to the current right-hand side element.
Definition: DVecDVecSubExpr.h:424
#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.
Compile time check whether the given type is a computational expression template.This type trait clas...
Definition: IsComputation.h:72
Availability of a SIMD subtraction for the given data types.Depending on the available instruction se...
Definition: HasSIMDSub.h:171
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:70
bool isAligned() const noexcept
Returns whether the operands of the expression are properly aligned in memory.
Definition: DVecDVecSubExpr.h:577
If_< IsExpression< VT1 >, const VT1, const VT1 &> LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:173
Header file for the subtraction trait.
LeftOperand leftOperand() const noexcept
Returns the left-hand side dense vector operand.
Definition: DVecDVecSubExpr.h:532
BLAZE_ALWAYS_INLINE bool isSame(const Matrix< MT1, SO1 > &a, const Matrix< MT2, SO2 > &b) noexcept
Returns whether the two given matrices represent the same observable state.
Definition: Matrix.h:786
Header file for basic type definitions.
ElementType_< VT1 > ET1
Element type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:108
bool operator>(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:347
const ConstIterator operator++(int)
Post-increment operator.
Definition: DVecDVecSubExpr.h:261
std::random_access_iterator_tag IteratorCategory
The iterator category.
Definition: DVecDVecSubExpr.h:186
EnableIf_< IsDenseMatrix< MT1 > > smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:164
ElementType_< VT2 > ET2
Element type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:109
Header file for the serial shim.
Generic wrapper for a compile time constant integral value.The IntegralConstant class template repres...
Definition: IntegralConstant.h:71
ConstIterator begin() const
Returns an iterator to the first non-zero element of the dense vector.
Definition: DVecDVecSubExpr.h:502
ConstIterator end() const
Returns an iterator just past the last non-zero element of the dense vector.
Definition: DVecDVecSubExpr.h:512
friend const ConstIterator operator+(const ConstIterator &it, size_t inc)
Addition between a ConstIterator and an integral value.
Definition: DVecDVecSubExpr.h:392
IteratorCategory iterator_category
The iterator category.
Definition: DVecDVecSubExpr.h:193
SubTrait_< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: DVecDVecSubExpr.h:162
EnableIf_< IsDenseVector< VT1 > > smpMultAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs)
Default implementation of the SMP multiplication assignment of a vector to a dense vector...
Definition: DenseVector.h:193
Header file for the And class template.
Compile time value evaluation.The Maximum alias declaration selects the larger of the two given templ...
Definition: Maximum.h:73
Header file for the DenseVector base class.
ValueType value_type
Type of the underlying elements.
Definition: DVecDVecSubExpr.h:194
ResultType_< VT1 > RT1
Result type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:102
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
ConstIterator & operator-=(size_t dec)
Subtraction assignment operator.
Definition: DVecDVecSubExpr.h:237
auto load() const noexcept
Access to the SIMD elements of the vector.
Definition: DVecDVecSubExpr.h:303
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:314
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:343
EnableIf_< IsDenseMatrix< MT1 > > smpAddAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:133
ReturnType_< VT1 > RN1
Return type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:104
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: DVecDVecSubExpr.h:163
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:363
ElementType * PointerType
Pointer return type.
Definition: DVecDVecSubExpr.h:188
CompositeType_< VT1 > CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:106
friend const ConstIterator operator-(const ConstIterator &it, size_t dec)
Subtraction between a ConstIterator and an integral value.
Definition: DVecDVecSubExpr.h:416
Compile time check for the alignment of data types.This type trait tests whether the given data type ...
Definition: IsAligned.h:87
typename SubExprTrait< T1, T2 >::Type SubExprTrait_
Auxiliary alias declaration for the SubExprTrait class template.The SubExprTrait_ alias declaration p...
Definition: SubExprTrait.h:112
Header file for the Maximum class template.
bool operator>=(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:369
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:72
ConstIterator & operator+=(size_t inc)
Addition assignment operator.
Definition: DVecDVecSubExpr.h:224
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
Header file for the IsTemporary type trait class.
DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two iterators.
Definition: DVecDVecSubExpr.h:380
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
#define BLAZE_ALWAYS_INLINE
Platform dependent setup of an enforced inline keyword.
Definition: Inline.h:85
Header file for the If class template.
ConstIterator & operator--()
Pre-decrement operator.
Definition: DVecDVecSubExpr.h:271
Compile time check for data types with padding.This type trait tests whether the given data type empl...
Definition: IsPadded.h:76
EnableIf_< IsDenseMatrix< MT1 > > smpAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:102
Iterator over the elements of the dense vector.
Definition: DVecDVecSubExpr.h:182
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: DVecDVecSubExpr.h:542
#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
ConstIterator_< VT1 > LeftIteratorType
ConstIterator type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:200
ReturnType operator*() const
Direct access to the element at the current iterator position.
Definition: DVecDVecSubExpr.h:293
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:3087
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: DVecDVecSubExpr.h:554
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
Header file for all SIMD functionality.
ElementType_< ResultType > ElementType
Resulting element type.
Definition: DVecDVecSubExpr.h:164
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
SubExprTrait_< RN1, RN2 > ExprReturnType
Expression return type for the subscript operator.
Definition: DVecDVecSubExpr.h:122
ElementType & ReferenceType
Reference return type.
Definition: DVecDVecSubExpr.h:189
PointerType pointer
Pointer return type.
Definition: DVecDVecSubExpr.h:195
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: DVecDVecSubExpr.h:167
Header file for the IsAligned type trait.
bool operator<=(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:358
Constraint on the data type.
Constraint on the data type.
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: DVecDVecSubExpr.h:476
Header file for the exception macros of the math module.
LeftIteratorType left_
Iterator to the current left-hand side element.
Definition: DVecDVecSubExpr.h:423
friend const ConstIterator operator+(size_t inc, const ConstIterator &it)
Addition between an integral value and a ConstIterator.
Definition: DVecDVecSubExpr.h:404
Header file for the VecVecSubExpr base class.
Constraint on the data type.
Header file for all forward declarations for expression class templates.
Header file for the EnableIf class template.
Header file for the IsPadded type trait.
ConstIterator(LeftIteratorType left, RightIteratorType right)
Constructor for the ConstIterator class.
Definition: DVecDVecSubExpr.h:212
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: DVecDVecSubExpr.h:522
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: DVecDVecSubExpr.h:567
ElementType ValueType
Type of the underlying elements.
Definition: DVecDVecSubExpr.h:187
Header file for run time assertion macros.
ConstIterator_< VT2 > RightIteratorType
ConstIterator type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:203
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:154
EnableIf_< IsDenseVector< VT1 > > smpDivAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs)
Default implementation of the SMP division assignment of a vector to a dense vector.
Definition: DenseVector.h:222
DVecDVecSubExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the DVecDVecSubExpr class.
Definition: DVecDVecSubExpr.h:449
ConstIterator & operator++()
Pre-increment operator.
Definition: DVecDVecSubExpr.h:249
SIMD characteristics of data types.The SIMDTrait class template provides the SIMD characteristics of ...
Definition: SIMDTrait.h:296
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:94
Header file for the HasSIMDSub type trait.
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:819
#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
BLAZE_ALWAYS_INLINE auto load(size_t index) const noexcept
Access to the SIMD elements of the vector.
Definition: DVecDVecSubExpr.h:490
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:224
RightOperand rhs_
Right-hand side dense vector of the subtraction expression.
Definition: DVecDVecSubExpr.h:596
ReferenceType reference
Reference return type.
Definition: DVecDVecSubExpr.h:196
Constraint on the data type.
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:3082
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 canSMPAssign() const noexcept
Returns whether the expression can be used in SMP assignments.
Definition: DVecDVecSubExpr.h:587
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECSUBEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecSubExpr.h:108
Header file for the IsComputation type trait class.
IfTrue_< useAssign, const ResultType, const DVecDVecSubExpr &> CompositeType
Data type for composite expression templates.
Definition: DVecDVecSubExpr.h:170
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:66
typename SubTrait< T1, T2 >::Type SubTrait_
Auxiliary alias declaration for the SubTrait class template.The SubTrait_ alias declaration provides ...
Definition: SubTrait.h:250
Compile time evaluation of the size of a vector.The Size type trait evaluates the size of the given v...
Definition: Size.h:74
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:130
bool operator<(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:336
Header file for the IntegralConstant class template.
If_< IsExpression< VT2 >, const VT2, const VT2 &> RightOperand
Composite type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:176
ReturnType_< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:105
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:423
CompositeType_< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:107
Base class for all vector/vector subtraction expression templates.The VecVecSubExpr class serves as a...
Definition: VecVecSubExpr.h:66
LeftOperand lhs_
Left-hand side dense vector of the subtraction expression.
Definition: DVecDVecSubExpr.h:595
const ConstIterator operator--(int)
Post-decrement operator.
Definition: DVecDVecSubExpr.h:283
Header file for the SubExprTrait class template.
Expression object for dense vector-dense vector subtractions.The DVecDVecSubExpr class represents the...
Definition: DVecDVecSubExpr.h:96
System settings for the inline keywords.
Header file for the Size type trait.
#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
Header file for the thresholds for matrix/vector and matrix/matrix multiplications.
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.In case of an invalid run time expression, the program execution is terminated. The BLAZE_INTERNAL_ASSERT macro can be disabled by setting the BLAZE_USER_ASSERTION flag to zero or by defining NDEBUG during the compilation.
Definition: Assert.h:101
Compile time check whether the given type is an expression template.This type trait class tests wheth...
Definition: IsExpression.h:95
Header file for the IsExpression type trait class.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DVecDVecSubExpr.h:463
Header file for the function trace functionality.
ResultType_< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:103