35#ifndef _BLAZE_MATH_EXPRESSIONS_DVECDVECSUBEXPR_H_
36#define _BLAZE_MATH_EXPRESSIONS_DVECDVECSUBEXPR_H_
96 :
public VecVecSubExpr< DenseVector< DVecDVecSubExpr<VT1,VT2,TF>, TF > >
118 static constexpr bool returnExpr = ( !IsTemporary_v<RN1> && !IsTemporary_v<RN2> );
133 ( RequiresEvaluation_v<VT1> || RequiresEvaluation_v<VT2> || !
returnExpr );
137 template<
typename VT >
138 static constexpr bool UseAssign_v =
useAssign;
150 template<
typename VT >
151 static constexpr bool UseSMPAssign_v =
152 ( ( !VT1::smpAssignable || !VT2::smpAssignable ) &&
useAssign );
296 return (*
left_) - (*right_);
305 inline auto load() const noexcept {
434 ( VT1::simdEnabled && VT2::simdEnabled && HasSIMDSub_v<ET1,ET2> );
437 static constexpr bool smpAssignable = ( VT1::smpAssignable && VT2::smpAssignable );
479 if( index >=
lhs_.size() ) {
482 return (*
this)[index];
495 return lhs_.load( index ) -
rhs_.load( index );
524 inline size_t size() const noexcept {
555 template<
typename T >
556 inline bool canAlias(
const T* alias )
const noexcept {
557 return ( IsExpression_v<VT1> && ( RequiresEvaluation_v<VT1> ?
lhs_.isAliased( alias ) :
lhs_.canAlias( alias ) ) ) ||
558 ( IsExpression_v<VT2> && ( RequiresEvaluation_v<VT2> ?
rhs_.isAliased( alias ) :
rhs_.canAlias( alias ) ) );
568 template<
typename T >
569 inline bool isAliased(
const T* alias )
const noexcept {
570 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
580 return lhs_.isAligned() &&
rhs_.isAligned();
590 return lhs_.canSMPAssign() ||
rhs_.canSMPAssign() ||
591 (
size() > SMP_DVECDVECSUB_THRESHOLD );
615 template<
typename VT >
623 if( !IsComputation_v<VT1> &&
isSame( *lhs, rhs.lhs_ ) ) {
624 subAssign( *lhs, rhs.rhs_ );
626 else if( ( !IsComputation_v<VT2> &&
isSame( *lhs, rhs.rhs_ ) ) ||
627 ( !RequiresEvaluation_v<VT2> && rhs.rhs_.isAliased( &(*lhs) ) ) ) {
628 assign ( *lhs, -rhs.rhs_ );
629 addAssign( *lhs, rhs.lhs_ );
632 assign ( *lhs, rhs.lhs_ );
633 subAssign( *lhs, rhs.rhs_ );
653 template<
typename VT >
685 template<
typename VT >
686 friend inline auto addAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
687 -> EnableIf_t< UseAssign_v<VT> >
693 if( !RequiresEvaluation_v<VT2> ) {
694 subAssign( *lhs, rhs.rhs_ );
695 addAssign( *lhs, rhs.lhs_ );
698 addAssign( *lhs, rhs.lhs_ );
699 subAssign( *lhs, rhs.rhs_ );
723 template<
typename VT >
724 friend inline auto subAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
725 -> EnableIf_t< UseAssign_v<VT> >
731 if( !RequiresEvaluation_v<VT2> ) {
732 addAssign( *lhs, rhs.rhs_ );
733 subAssign( *lhs, rhs.lhs_ );
736 subAssign( *lhs, rhs.lhs_ );
737 addAssign( *lhs, rhs.rhs_ );
761 template<
typename VT >
762 friend inline auto multAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
763 -> EnableIf_t< UseAssign_v<VT> >
774 multAssign( *lhs, tmp );
797 template<
typename VT >
798 friend inline auto divAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
799 -> EnableIf_t< UseAssign_v<VT> >
810 divAssign( *lhs, tmp );
833 template<
typename VT >
835 -> EnableIf_t< UseSMPAssign_v<VT> >
841 if( !IsComputation_v<VT1> &&
isSame( *lhs, rhs.lhs_ ) ) {
844 else if( ( !IsComputation_v<VT2> &&
isSame( *lhs, rhs.rhs_ ) ) ||
845 ( !RequiresEvaluation_v<VT2> && rhs.rhs_.isAliased( &(*lhs) ) ) ) {
871 template<
typename VT >
873 -> EnableIf_t< UseSMPAssign_v<VT> >
903 template<
typename VT >
905 -> EnableIf_t< UseSMPAssign_v<VT> >
911 if( !RequiresEvaluation_v<VT2> ) {
941 template<
typename VT >
943 -> EnableIf_t< UseSMPAssign_v<VT> >
949 if( !RequiresEvaluation_v<VT2> ) {
979 template<
typename VT >
981 -> EnableIf_t< UseSMPAssign_v<VT> >
1015 template<
typename VT >
1017 -> EnableIf_t< UseSMPAssign_v<VT> >
1082template<
typename VT1
1085inline decltype(
auto)
1090 if( (*lhs).size() != (*rhs).size() ) {
1095 return ReturnType( *lhs, *rhs );
1110template<
typename VT1,
typename VT2,
bool TF >
1111struct IsAligned< DVecDVecSubExpr<VT1,VT2,TF> >
1112 :
public BoolConstant< IsAligned_v<VT1> && IsAligned_v<VT2> >
1128template<
typename VT1,
typename VT2,
bool TF >
1129struct IsPadded< DVecDVecSubExpr<VT1,VT2,TF> >
1130 :
public BoolConstant< IsPadded_v<VT1> && IsPadded_v<VT2> >
Header file for auxiliary alias declarations.
typename T::CompositeType CompositeType_t
Alias declaration for nested CompositeType type definitions.
Definition: Aliases.h:110
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.
Definition: Aliases.h:470
typename T::ResultType ResultType_t
Alias declaration for nested ResultType type definitions.
Definition: Aliases.h:450
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.
Definition: Aliases.h:190
typename T::ConstIterator ConstIterator_t
Alias declaration for nested ConstIterator type definitions.
Definition: Aliases.h:130
typename T::TransposeType TransposeType_t
Alias declaration for nested TransposeType type definitions.
Definition: Aliases.h:550
Header file for run time assertion macros.
Header file for the EnableIf class template.
Header file for the function trace functionality.
Header file for the HasSIMDSub type trait.
Macro for CUDA compatibility.
Header file for the If class template.
Header file for the IntegralConstant class template.
Header file for the IsAligned type trait.
Header file for the IsComputation type trait class.
Header file for the IsExpression type trait class.
Header file for the IsPadded type trait.
Header file for the IsTemporary type trait class.
Deactivation of problematic macros.
Header file for all SIMD functionality.
Header file for the subtraction trait.
Iterator over the elements of the dense vector.
Definition: DVecDVecSubExpr.h:185
ConstIterator_t< VT1 > LeftIteratorType
ConstIterator type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:202
PointerType pointer
Pointer return type.
Definition: DVecDVecSubExpr.h:197
LeftIteratorType left_
Iterator to the current left-hand side element.
Definition: DVecDVecSubExpr.h:425
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: DVecDVecSubExpr.h:192
BLAZE_DEVICE_CALLABLE ReturnType operator*() const
Direct access to the element at the current iterator position.
Definition: DVecDVecSubExpr.h:295
BLAZE_DEVICE_CALLABLE bool operator>(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:349
BLAZE_DEVICE_CALLABLE bool operator<=(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:360
friend BLAZE_DEVICE_CALLABLE const ConstIterator operator+(const ConstIterator &it, size_t inc)
Addition between a ConstIterator and an integral value.
Definition: DVecDVecSubExpr.h:394
IteratorCategory iterator_category
The iterator category.
Definition: DVecDVecSubExpr.h:195
BLAZE_DEVICE_CALLABLE DifferenceType operator-(const ConstIterator &rhs) const
Calculating the number of elements between two iterators.
Definition: DVecDVecSubExpr.h:382
BLAZE_DEVICE_CALLABLE const ConstIterator operator--(int)
Post-decrement operator.
Definition: DVecDVecSubExpr.h:285
ValueType value_type
Type of the underlying elements.
Definition: DVecDVecSubExpr.h:196
ElementType * PointerType
Pointer return type.
Definition: DVecDVecSubExpr.h:190
BLAZE_DEVICE_CALLABLE ConstIterator & operator-=(size_t dec)
Subtraction assignment operator.
Definition: DVecDVecSubExpr.h:239
ElementType ValueType
Type of the underlying elements.
Definition: DVecDVecSubExpr.h:189
BLAZE_DEVICE_CALLABLE ConstIterator & operator--()
Pre-decrement operator.
Definition: DVecDVecSubExpr.h:273
BLAZE_DEVICE_CALLABLE bool operator<(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:338
BLAZE_DEVICE_CALLABLE bool operator>=(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:371
ConstIterator_t< VT2 > RightIteratorType
ConstIterator type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:205
DifferenceType difference_type
Difference between two iterators.
Definition: DVecDVecSubExpr.h:199
RightIteratorType right_
Iterator to the current right-hand side element.
Definition: DVecDVecSubExpr.h:426
BLAZE_DEVICE_CALLABLE ConstIterator & operator+=(size_t inc)
Addition assignment operator.
Definition: DVecDVecSubExpr.h:226
std::random_access_iterator_tag IteratorCategory
The iterator category.
Definition: DVecDVecSubExpr.h:188
friend BLAZE_DEVICE_CALLABLE const ConstIterator operator+(size_t inc, const ConstIterator &it)
Addition between an integral value and a ConstIterator.
Definition: DVecDVecSubExpr.h:406
BLAZE_DEVICE_CALLABLE bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:316
BLAZE_DEVICE_CALLABLE ConstIterator(LeftIteratorType left, RightIteratorType right)
Constructor for the ConstIterator class.
Definition: DVecDVecSubExpr.h:214
ReferenceType reference
Reference return type.
Definition: DVecDVecSubExpr.h:198
auto load() const noexcept
Access to the SIMD elements of the vector.
Definition: DVecDVecSubExpr.h:305
BLAZE_DEVICE_CALLABLE const ConstIterator operator++(int)
Post-increment operator.
Definition: DVecDVecSubExpr.h:263
BLAZE_DEVICE_CALLABLE ConstIterator & operator++()
Pre-increment operator.
Definition: DVecDVecSubExpr.h:251
friend BLAZE_DEVICE_CALLABLE const ConstIterator operator-(const ConstIterator &it, size_t dec)
Subtraction between a ConstIterator and an integral value.
Definition: DVecDVecSubExpr.h:418
ElementType & ReferenceType
Reference return type.
Definition: DVecDVecSubExpr.h:191
BLAZE_DEVICE_CALLABLE bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:327
Expression object for dense vector-dense vector subtractions.
Definition: DVecDVecSubExpr.h:98
If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:178
static constexpr bool useAssign
Compilation switch for the serial evaluation strategy of the subtraction expression.
Definition: DVecDVecSubExpr.h:132
ReturnType_t< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:104
decltype(std::declval< RN1 >() - std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: DVecDVecSubExpr.h:121
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: DVecDVecSubExpr.h:524
CompositeType_t< VT1 > CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:105
ReturnType_t< VT1 > RN1
Return type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:103
ConstIterator end() const
Returns an iterator just past the last non-zero element of the dense vector.
Definition: DVecDVecSubExpr.h:514
DVecDVecSubExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the DVecDVecSubExpr class.
Definition: DVecDVecSubExpr.h:451
BLAZE_ALWAYS_INLINE auto load(size_t index) const noexcept
Access to the SIMD elements of the vector.
Definition: DVecDVecSubExpr.h:492
ResultType_t< VT1 > RT1
Result type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:101
LeftOperand lhs_
Left-hand side dense vector of the subtraction expression.
Definition: DVecDVecSubExpr.h:597
If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:175
SubTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: DVecDVecSubExpr.h:164
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: DVecDVecSubExpr.h:166
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: DVecDVecSubExpr.h:544
static constexpr bool simdEnabled
Compilation switch for the expression template evaluation strategy.
Definition: DVecDVecSubExpr.h:433
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: DVecDVecSubExpr.h:169
If_t< useAssign, const ResultType, const DVecDVecSubExpr & > CompositeType
Data type for composite expression templates.
Definition: DVecDVecSubExpr.h:172
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: DVecDVecSubExpr.h:569
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: DVecDVecSubExpr.h:118
bool canSMPAssign() const noexcept
Returns whether the expression can be used in SMP assignments.
Definition: DVecDVecSubExpr.h:589
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DVecDVecSubExpr.h:465
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: DVecDVecSubExpr.h:478
ConstIterator begin() const
Returns an iterator to the first non-zero element of the dense vector.
Definition: DVecDVecSubExpr.h:504
RightOperand rhs_
Right-hand side dense vector of the subtraction expression.
Definition: DVecDVecSubExpr.h:598
ElementType_t< VT1 > ET1
Element type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:107
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: DVecDVecSubExpr.h:165
ResultType_t< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:102
bool isAligned() const noexcept
Returns whether the operands of the expression are properly aligned in memory.
Definition: DVecDVecSubExpr.h:579
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: DVecDVecSubExpr.h:437
static constexpr size_t SIMDSIZE
The number of elements packed within a single SIMD element.
Definition: DVecDVecSubExpr.h:442
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: DVecDVecSubExpr.h:556
CompositeType_t< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:106
LeftOperand leftOperand() const noexcept
Returns the left-hand side dense vector operand.
Definition: DVecDVecSubExpr.h:534
ElementType_t< VT2 > ET2
Element type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:108
Base class for N-dimensional dense vectors.
Definition: DenseVector.h:77
SIMD characteristics of data types.
Definition: SIMDTrait.h:297
Base class for sparse vectors.
Definition: SparseVector.h:72
Constraint on the data type.
Constraint on the data type.
Constraint on the data type.
Header file for the Computation base class.
Header file for the DenseVector base class.
Header file for the VecVecSubExpr base class.
decltype(auto) serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:812
#define BLAZE_CONSTRAINT_MUST_NOT_REQUIRE_EVALUATION(T)
Constraint on the data type.
Definition: RequiresEvaluation.h:81
#define BLAZE_CONSTRAINT_MUST_BE_VECTOR_WITH_TRANSPOSE_FLAG(T, TF)
Constraint on the data type.
Definition: TransposeFlag.h:63
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECSUBEXPR(T1, T2)
Constraint on the data type.
Definition: VecVecSubExpr.h:104
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_VECTOR_TYPE(T)
Constraint on the data type.
Definition: DenseVector.h:61
typename SubTrait< T1, T2 >::Type SubTrait_t
Auxiliary alias declaration for the SubTrait class template.
Definition: SubTrait.h:163
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:1424
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.
Definition: Assert.h:101
auto smpDivAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs) -> EnableIf_t< IsDenseVector_v< VT1 > >
Default implementation of the SMP division assignment of a vector to a dense vector.
Definition: DenseVector.h:221
auto smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:162
auto smpAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:100
auto smpMultAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs) -> EnableIf_t< IsDenseVector_v< VT1 > >
Default implementation of the SMP multiplication assignment of a vector to a dense vector.
Definition: DenseVector.h:192
auto smpAddAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:131
#define BLAZE_ALWAYS_INLINE
Platform dependent setup of an enforced inline keyword.
Definition: Inline.h:85
#define BLAZE_DEVICE_CALLABLE
Conditional macro that sets host and device attributes when compiled with CUDA.
Definition: HostDevice.h:94
typename EnableIf< Condition, T >::Type EnableIf_t
Auxiliary type for the EnableIf class template.
Definition: EnableIf.h:138
typename If< Condition >::template Type< T1, T2 > If_t
Auxiliary alias template for the If class template.
Definition: If.h:108
IntegralConstant< bool, B > BoolConstant
Generic wrapper for a compile time constant boolean value.
Definition: IntegralConstant.h:110
#define BLAZE_THROW_OUT_OF_RANGE(MESSAGE)
Macro for the emission of a std::out_of_range exception.
Definition: Exception.h:331
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exception.
Definition: Exception.h:235
#define BLAZE_FUNCTION_TRACE
Function trace macro.
Definition: FunctionTrace.h:94
Header file for the exception macros of the math module.
Constraint on the data type.
Header file for all forward declarations for expression class templates.
Header file for the serial shim.
Base class for all compute expression templates.
Definition: Computation.h:68
Base class for all vector/vector subtraction expression templates.
Definition: VecVecSubExpr.h:68
System settings for the inline keywords.
Header file for the thresholds for matrix/vector and matrix/matrix multiplications.
Header file for the RequiresEvaluation type trait.
Header file for basic type definitions.