Expression object for dense vector-dense vector subtractions.
More...
#include <DVecDVecSubExpr.h>
Inherits blaze::VecVecSubExpr< DenseVector< DVecDVecSubExpr< VT1, VT2, TF >, TF > >, and blaze::Computation.
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using | This = DVecDVecSubExpr< VT1, VT2, TF > |
| Type of this DVecDVecSubExpr instance.
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using | BaseType = VecVecSubExpr< DenseVector< This, TF > > |
| Base type of this DVecDVecSubExpr instance.
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using | ResultType = SubTrait_t< RT1, RT2 > |
| Result type for expression template evaluations.
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using | TransposeType = TransposeType_t< ResultType > |
| Transpose type for expression template evaluations.
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using | ElementType = ElementType_t< ResultType > |
| Resulting element type.
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using | ReturnType = const If_t< returnExpr, ExprReturnType, ElementType > |
| Return type for expression template evaluations.
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using | CompositeType = If_t< useAssign, const ResultType, const DVecDVecSubExpr & > |
| Data type for composite expression templates.
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using | LeftOperand = If_t< IsExpression_v< VT1 >, const VT1, const VT1 & > |
| Composite type of the left-hand side dense vector expression.
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using | RightOperand = If_t< IsExpression_v< VT2 >, const VT2, const VT2 & > |
| Composite type of the right-hand side dense vector expression.
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using | VectorType = DVecDVecSubExpr< VT1, VT2, TF > |
| Type of the vector.
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static constexpr bool | simdEnabled |
| Compilation switch for the expression template evaluation strategy. More...
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static constexpr bool | smpAssignable = ( VT1::smpAssignable && VT2::smpAssignable ) |
| Compilation switch for the expression template assignment strategy.
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static constexpr size_t | SIMDSIZE = SIMDTrait<ElementType>::size |
| The number of elements packed within a single SIMD element.
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static constexpr bool | transposeFlag |
| Transpose flag of the vector.
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using | RT1 = ResultType_t< VT1 > |
| Result type of the left-hand side dense vector expression.
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using | RT2 = ResultType_t< VT2 > |
| Result type of the right-hand side dense vector expression.
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using | RN1 = ReturnType_t< VT1 > |
| Return type of the left-hand side dense vector expression.
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using | RN2 = ReturnType_t< VT2 > |
| Return type of the right-hand side dense vector expression.
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using | CT1 = CompositeType_t< VT1 > |
| Composite type of the left-hand side dense vector expression.
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using | CT2 = CompositeType_t< VT2 > |
| Composite type of the right-hand side dense vector expression.
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using | ET1 = ElementType_t< VT1 > |
| Element type of the left-hand side dense vector expression.
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using | ET2 = ElementType_t< VT2 > |
| Element type of the right-hand side dense vector expression.
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using | ExprReturnType = decltype(std::declval< RN1 >() - std::declval< RN2 >()) |
| Expression return type for the subscript operator.
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LeftOperand | lhs_ |
| Left-hand side dense vector of the subtraction expression.
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RightOperand | rhs_ |
| Right-hand side dense vector of the subtraction expression.
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static constexpr bool | returnExpr = ( !IsTemporary_v<RN1> && !IsTemporary_v<RN2> ) |
| Compilation switch for the selection of the subscript operator return type. More...
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static constexpr bool | useAssign |
| Compilation switch for the serial evaluation strategy of the subtraction expression. More...
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template<typename VT1, typename VT2, bool TF>
class blaze::DVecDVecSubExpr< VT1, VT2, TF >
Expression object for dense vector-dense vector subtractions.
The DVecDVecSubExpr class represents the compile time expression for subtractions between dense vectors.
◆ DVecDVecSubExpr()
template<typename VT1 , typename VT2 , bool TF>
Constructor for the DVecDVecSubExpr class.
- Parameters
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lhs | The left-hand side operand of the subtraction expression. |
rhs | The right-hand side operand of the subtraction expression. |
◆ at()
template<typename VT1 , typename VT2 , bool TF>
Checked access to the vector elements.
- Parameters
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index | Access index. The index has to be in the range . |
- Returns
- The resulting value.
- Exceptions
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std::out_of_range | Invalid vector access index. |
◆ begin()
template<typename VT1 , typename VT2 , bool TF>
Returns an iterator to the first non-zero element of the dense vector.
- Returns
- Iterator to the first non-zero element of the dense vector.
◆ canAlias()
template<typename VT1 , typename VT2 , bool TF>
template<typename T >
Returns whether the expression can alias with the given address alias.
- Parameters
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alias | The alias to be checked. |
- Returns
- true in case the expression can alias, false otherwise.
◆ canSMPAssign()
template<typename VT1 , typename VT2 , bool TF>
Returns whether the expression can be used in SMP assignments.
- Returns
- true in case the expression can be used in SMP assignments, false if not.
◆ end()
template<typename VT1 , typename VT2 , bool TF>
Returns an iterator just past the last non-zero element of the dense vector.
- Returns
- Iterator just past the last non-zero element of the dense vector.
◆ isAliased()
template<typename VT1 , typename VT2 , bool TF>
template<typename T >
Returns whether the expression is aliased with the given address alias.
- Parameters
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alias | The alias to be checked. |
- Returns
- true in case an alias effect is detected, false otherwise.
◆ isAligned()
template<typename VT1 , typename VT2 , bool TF>
Returns whether the operands of the expression are properly aligned in memory.
- Returns
- true in case the operands are aligned, false if not.
◆ leftOperand()
template<typename VT1 , typename VT2 , bool TF>
Returns the left-hand side dense vector operand.
- Returns
- The left-hand side dense vector operand.
◆ load()
template<typename VT1 , typename VT2 , bool TF>
Access to the SIMD elements of the vector.
- Parameters
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index | Access index. The index has to be in the range . |
- Returns
- Reference to the accessed values.
◆ operator*() [1/2]
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constexprnoexceptinherited |
CRTP-based conversion operation for constant vectors.
- Returns
- Const reference of the actual type of the vector.
This operator performs the CRTP-based type-safe downcast to the actual type VT of the vector. It will return a constant reference to the actual type VT.
◆ operator*() [2/2]
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constexprnoexceptinherited |
CRTP-based conversion operation for non-constant vectors.
- Returns
- Mutable reference of the actual type of the vector.
This operator performs the CRTP-based type-safe downcast to the actual type VT of the vector. It will return a mutable reference to the actual type VT.
◆ operator[]()
template<typename VT1 , typename VT2 , bool TF>
Subscript operator for the direct access to the vector elements.
- Parameters
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index | Access index. The index has to be in the range . |
- Returns
- The resulting value.
◆ operator~() [1/2]
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constexprnoexceptinherited |
CRTP-based conversion operation for constant vectors.
- Returns
- Constant reference of the actual type of the vector.
This operator performs the CRTP-based type-safe downcast to the actual type VT of the vector. It will return a constant reference to the actual type VT.
◆ operator~() [2/2]
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constexprnoexceptinherited |
CRTP-based conversion operation for non-constant vectors.
- Returns
- Mutable reference of the actual type of the vector.
This operator performs the CRTP-based type-safe downcast to the actual type VT of the vector. It will return a mutable reference to the actual type VT.
◆ rightOperand()
template<typename VT1 , typename VT2 , bool TF>
Returns the right-hand side dense vector operand.
- Returns
- The right-hand side dense vector operand.
◆ size()
template<typename VT1 , typename VT2 , bool TF>
Returns the current size/dimension of the vector.
- Returns
- The size of the vector.
◆ returnExpr
template<typename VT1 , typename VT2 , bool TF>
Compilation switch for the selection of the subscript operator return type.
The returnExpr compile time constant expression is a compilation switch for the selection of the ReturnType. If either vector operand returns a temporary vector or matrix, returnExpr will be set to 0 and the subscript operator will return it's result by value. Otherwise returnExpr will be set to 1 and the subscript operator may return it's result as an expression.
◆ simdEnabled
template<typename VT1 , typename VT2 , bool TF>
Initial value:=
( VT1::simdEnabled && VT2::simdEnabled && HasSIMDSub_v<ET1,ET2> )
Compilation switch for the expression template evaluation strategy.
◆ useAssign
template<typename VT1 , typename VT2 , bool TF>
Initial value:=
( RequiresEvaluation_v<VT1> || RequiresEvaluation_v<VT2> || !
returnExpr )
static constexpr bool returnExpr
Compilation switch for the selection of the subscript operator return type.
Definition: DVecDVecSubExpr.h:118
Compilation switch for the serial evaluation strategy of the subtraction expression.
The useAssign compile time constant expression represents a compilation switch for the serial evaluation strategy of the subtraction expression. In case either of the two dense vector operands requires an intermediate evaluation or the subscript operator can only return by value, useAssign will be set to 1 and the subtraction expression will be evaluated via the assign function family. Otherwise useAssign will be set to 0 and the expression will be evaluated via the subscript operator.
The documentation for this class was generated from the following file: