35 #ifndef _BLAZE_MATH_EXPRESSIONS_DVECDVECSUBEXPR_H_ 36 #define _BLAZE_MATH_EXPRESSIONS_DVECDVECSUBEXPR_H_ 90 template<
typename VT1
94 :
public VecVecSubExpr< DenseVector< DVecDVecSubExpr<VT1,VT2,TF>, TF > >
116 static constexpr
bool returnExpr = ( !IsTemporary_v<RN1> && !IsTemporary_v<RN2> );
131 ( RequiresEvaluation_v<VT1> || RequiresEvaluation_v<VT2> || !
returnExpr );
134 template<
typename VT >
136 static constexpr
bool UseAssign_v =
useAssign;
148 template<
typename VT >
149 static constexpr
bool UseSMPAssign_v =
290 return (*
left_) - (*right_);
299 inline auto load() const noexcept {
428 ( VT1::simdEnabled && VT2::simdEnabled && HasSIMDSub_v<ET1,ET2> );
473 if( index >=
lhs_.size() ) {
476 return (*
this)[index];
489 return lhs_.load( index ) -
rhs_.load( index );
518 inline size_t size() const noexcept {
549 template<
typename T >
550 inline bool canAlias(
const T* alias )
const noexcept {
551 return ( IsExpression_v<VT1> && ( RequiresEvaluation_v<VT1> ?
lhs_.isAliased( alias ) :
lhs_.canAlias( alias ) ) ) ||
552 ( IsExpression_v<VT2> && ( RequiresEvaluation_v<VT2> ?
rhs_.isAliased( alias ) :
rhs_.canAlias( alias ) ) );
562 template<
typename T >
563 inline bool isAliased(
const T* alias )
const noexcept {
564 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
574 return lhs_.isAligned() &&
rhs_.isAligned();
584 return lhs_.canSMPAssign() ||
rhs_.canSMPAssign() ||
585 (
size() > SMP_DVECDVECSUB_THRESHOLD );
609 template<
typename VT >
617 if( !IsComputation_v<VT1> &&
isSame( ~lhs, rhs.lhs_ ) ) {
618 subAssign( ~lhs, rhs.rhs_ );
620 else if( ( !IsComputation_v<VT2> &&
isSame( ~lhs, rhs.rhs_ ) ) ||
621 ( !RequiresEvaluation_v<VT2> && rhs.rhs_.isAliased( &(~lhs) ) ) ) {
622 assign ( ~lhs, -rhs.rhs_ );
623 addAssign( ~lhs, rhs.lhs_ );
626 assign ( ~lhs, rhs.lhs_ );
627 subAssign( ~lhs, rhs.rhs_ );
647 template<
typename VT >
679 template<
typename VT >
680 friend inline auto addAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
681 -> EnableIf_t< UseAssign_v<VT> >
687 if( !RequiresEvaluation_v<VT2> ) {
688 subAssign( ~lhs, rhs.rhs_ );
689 addAssign( ~lhs, rhs.lhs_ );
692 addAssign( ~lhs, rhs.lhs_ );
693 subAssign( ~lhs, rhs.rhs_ );
717 template<
typename VT >
718 friend inline auto subAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
719 -> EnableIf_t< UseAssign_v<VT> >
725 if( !RequiresEvaluation_v<VT2> ) {
726 addAssign( ~lhs, rhs.rhs_ );
727 subAssign( ~lhs, rhs.lhs_ );
730 subAssign( ~lhs, rhs.lhs_ );
731 addAssign( ~lhs, rhs.rhs_ );
755 template<
typename VT >
756 friend inline auto multAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
757 -> EnableIf_t< UseAssign_v<VT> >
768 multAssign( ~lhs, tmp );
791 template<
typename VT >
792 friend inline auto divAssign( DenseVector<VT,TF>& lhs,
const DVecDVecSubExpr& rhs )
793 -> EnableIf_t< UseAssign_v<VT> >
804 divAssign( ~lhs, tmp );
827 template<
typename VT >
829 -> EnableIf_t< UseSMPAssign_v<VT> >
835 if( !IsComputation_v<VT1> &&
isSame( ~lhs, rhs.lhs_ ) ) {
838 else if( ( !IsComputation_v<VT2> &&
isSame( ~lhs, rhs.rhs_ ) ) ||
839 ( !RequiresEvaluation_v<VT2> && rhs.rhs_.isAliased( &(~lhs) ) ) ) {
865 template<
typename VT >
867 -> EnableIf_t< UseSMPAssign_v<VT> >
897 template<
typename VT >
899 -> EnableIf_t< UseSMPAssign_v<VT> >
905 if( !RequiresEvaluation_v<VT2> ) {
935 template<
typename VT >
937 -> EnableIf_t< UseSMPAssign_v<VT> >
943 if( !RequiresEvaluation_v<VT2> ) {
973 template<
typename VT >
975 -> EnableIf_t< UseSMPAssign_v<VT> >
1009 template<
typename VT >
1011 -> EnableIf_t< UseSMPAssign_v<VT> >
1076 template<
typename VT1
1079 inline decltype(
auto)
1084 if( (~lhs).
size() != (~rhs).
size() ) {
1104 template<
typename VT1,
typename VT2,
bool TF >
1105 struct IsAligned< DVecDVecSubExpr<VT1,VT2,TF> >
1106 :
public BoolConstant< IsAligned_v<VT1> && IsAligned_v<VT2> >
1122 template<
typename VT1,
typename VT2,
bool TF >
1123 struct IsPadded< DVecDVecSubExpr<VT1,VT2,TF> >
1124 :
public BoolConstant< IsPadded_v<VT1> && IsPadded_v<VT2> >
bool operator!=(const ConstIterator &rhs) const
Inequality comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:321
RightIteratorType right_
Iterator to the current right-hand side element.
Definition: DVecDVecSubExpr.h:420
#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.
ReturnType_t< VT2 > RN2
Return type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:102
typename SubTrait< T1, T2 >::Type SubTrait_t
Auxiliary alias declaration for the SubTrait class template.The SubTrait_t alias declaration provides...
Definition: SubTrait.h:238
bool isAligned() const noexcept
Returns whether the operands of the expression are properly aligned in memory.
Definition: DVecDVecSubExpr.h:573
Header file for the subtraction trait.
LeftOperand leftOperand() const noexcept
Returns the left-hand side dense vector operand.
Definition: DVecDVecSubExpr.h:528
ElementType_t< ResultType > ElementType
Resulting element type.
Definition: DVecDVecSubExpr.h:160
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:992
Header file for basic type definitions.
If_t< useAssign, const ResultType, const DVecDVecSubExpr &> CompositeType
Data type for composite expression templates.
Definition: DVecDVecSubExpr.h:166
typename If< Condition, T1, T2 >::Type If_t
Auxiliary alias declaration for the If class template.The If_t alias declaration provides a convenien...
Definition: If.h:109
bool operator>(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:343
const ConstIterator operator++(int)
Post-increment operator.
Definition: DVecDVecSubExpr.h:257
std::random_access_iterator_tag IteratorCategory
The iterator category.
Definition: DVecDVecSubExpr.h:182
typename T::ResultType ResultType_t
Alias declaration for nested ResultType type definitions.The ResultType_t alias declaration provides ...
Definition: Aliases.h:390
Header file for the serial shim.
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:224
ConstIterator begin() const
Returns an iterator to the first non-zero element of the dense vector.
Definition: DVecDVecSubExpr.h:498
ConstIterator end() const
Returns an iterator just past the last non-zero element of the dense vector.
Definition: DVecDVecSubExpr.h:508
ReturnType_t< VT1 > RN1
Return type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:101
friend const ConstIterator operator+(const ConstIterator &it, size_t inc)
Addition between a ConstIterator and an integral value.
Definition: DVecDVecSubExpr.h:388
static constexpr bool smpAssignable
Compilation flag for SMP assignments.
Definition: CompressedMatrix.h:3113
IteratorCategory iterator_category
The iterator category.
Definition: DVecDVecSubExpr.h:189
ElementType_t< VT2 > ET2
Element type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:106
TransposeType_t< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: DVecDVecSubExpr.h:159
ResultType_t< VT2 > RT2
Result type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:100
Header file for the DenseVector base class.
ValueType value_type
Type of the underlying elements.
Definition: DVecDVecSubExpr.h:190
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:233
auto load() const noexcept
Access to the SIMD elements of the vector.
Definition: DVecDVecSubExpr.h:299
bool operator==(const ConstIterator &rhs) const
Equality comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:310
typename T::ReturnType ReturnType_t
Alias declaration for nested ReturnType type definitions.The ReturnType_t alias declaration provides ...
Definition: Aliases.h:410
const If_t< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: DVecDVecSubExpr.h:163
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.The ElementType_t alias declaration provide...
Definition: Aliases.h:170
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:220
ElementType * PointerType
Pointer return type.
Definition: DVecDVecSubExpr.h:184
friend const ConstIterator operator-(const ConstIterator &it, size_t dec)
Subtraction between a ConstIterator and an integral value.
Definition: DVecDVecSubExpr.h:412
typename EnableIf< Condition, T >::Type EnableIf_t
Auxiliary type for the EnableIf class template.The EnableIf_t alias declaration provides a convenient...
Definition: EnableIf.h:138
bool operator>=(const ConstIterator &rhs) const
Greater-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:365
ConstIterator & operator+=(size_t inc)
Addition assignment operator.
Definition: DVecDVecSubExpr.h:220
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:376
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
#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:267
decltype(std::declval< RN1 >() - std::declval< RN2 >()) ExprReturnType
Expression return type for the subscript operator.
Definition: DVecDVecSubExpr.h:119
Iterator over the elements of the dense vector.
Definition: DVecDVecSubExpr.h:178
RightOperand rightOperand() const noexcept
Returns the right-hand side dense vector operand.
Definition: DVecDVecSubExpr.h:538
#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
ReturnType operator*() const
Direct access to the element at the current iterator position.
Definition: DVecDVecSubExpr.h:289
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:3086
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: DVecDVecSubExpr.h:550
Header file for all SIMD functionality.
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:76
static constexpr bool smpAssignable
Compilation switch for the expression template assignment strategy.
Definition: DVecDVecSubExpr.h:431
ElementType & ReferenceType
Reference return type.
Definition: DVecDVecSubExpr.h:185
PointerType pointer
Pointer return type.
Definition: DVecDVecSubExpr.h:191
Header file for the IsAligned type trait.
bool operator<=(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:354
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:472
Header file for the exception macros of the math module.
LeftIteratorType left_
Iterator to the current left-hand side element.
Definition: DVecDVecSubExpr.h:419
friend const ConstIterator operator+(size_t inc, const ConstIterator &it)
Addition between an integral value and a ConstIterator.
Definition: DVecDVecSubExpr.h:400
Header file for the VecVecSubExpr base class.
Constraint on the data type.
Header file for all forward declarations for expression class templates.
CompositeType_t< VT1 > CT1
Composite type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:103
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:208
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: DVecDVecSubExpr.h:518
ConstIterator_t< VT1 > LeftIteratorType
ConstIterator type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:196
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: DVecDVecSubExpr.h:563
static constexpr size_t SIMDSIZE
The number of elements packed within a single SIMD element.
Definition: DVecDVecSubExpr.h:436
If_t< IsExpression_v< VT1 >, const VT1, const VT1 &> LeftOperand
Composite type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:169
static constexpr bool simdEnabled
Compilation switch for the expression template evaluation strategy.
Definition: DVecDVecSubExpr.h:427
typename T::TransposeType TransposeType_t
Alias declaration for nested TransposeType type definitions.The TransposeType_t alias declaration pro...
Definition: Aliases.h:470
ElementType ValueType
Type of the underlying elements.
Definition: DVecDVecSubExpr.h:183
Header file for run time assertion macros.
static constexpr bool useAssign
Compilation switch for the serial evaluation strategy of the subtraction expression.
Definition: DVecDVecSubExpr.h:130
typename T::CompositeType CompositeType_t
Alias declaration for nested CompositeType type definitions.The CompositeType_t alias declaration pro...
Definition: Aliases.h:90
If_t< IsExpression_v< VT2 >, const VT2, const VT2 &> RightOperand
Composite type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:172
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
ptrdiff_t DifferenceType
Difference between two iterators.
Definition: DVecDVecSubExpr.h:186
DVecDVecSubExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the DVecDVecSubExpr class.
Definition: DVecDVecSubExpr.h:445
ResultType_t< VT1 > RT1
Result type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:99
ConstIterator & operator++()
Pre-increment operator.
Definition: DVecDVecSubExpr.h:245
SIMD characteristics of data types.The SIMDTrait class template provides the SIMD characteristics of ...
Definition: SIMDTrait.h:295
#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
constexpr size_t size(const Matrix< MT, SO > &matrix) noexcept
Returns the total number of elements of the matrix.
Definition: Matrix.h:530
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
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:808
#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
IntegralConstant< bool, B > BoolConstant
Generic wrapper for a compile time constant boolean value.The BoolConstant class template represents ...
Definition: IntegralConstant.h:101
BLAZE_ALWAYS_INLINE auto load(size_t index) const noexcept
Access to the SIMD elements of the vector.
Definition: DVecDVecSubExpr.h:486
CompositeType_t< VT2 > CT2
Composite type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:104
RightOperand rhs_
Right-hand side dense vector of the subtraction expression.
Definition: DVecDVecSubExpr.h:592
typename T::ConstIterator ConstIterator_t
Alias declaration for nested ConstIterator type definitions.The ConstIterator_t alias declaration pro...
Definition: Aliases.h:110
ReferenceType reference
Reference return type.
Definition: DVecDVecSubExpr.h:192
Constraint on the data type.
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: DVecDVecSubExpr.h:116
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:3081
#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:583
SubTrait_t< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: DVecDVecSubExpr.h:158
#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:104
Header file for the IsComputation type trait class.
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
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:66
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:138
ConstIterator_t< VT2 > RightIteratorType
ConstIterator type of the right-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:199
bool operator<(const ConstIterator &rhs) const
Less-than comparison between two ConstIterator objects.
Definition: DVecDVecSubExpr.h:332
Header file for the IntegralConstant class template.
ElementType_t< VT1 > ET1
Element type of the left-hand side dense vector expression.
Definition: DVecDVecSubExpr.h:105
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:591
const ConstIterator operator--(int)
Post-decrement operator.
Definition: DVecDVecSubExpr.h:279
Expression object for dense vector-dense vector subtractions.The DVecDVecSubExpr class represents the...
Definition: DVecDVecSubExpr.h:93
System settings for the inline keywords.
#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
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:191
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:459
Header file for the function trace functionality.