Expression object for dense vector-sparse vector outer products.The DVecSVecOuterExpr class represents the compile time expression for dense vector-sparse vector outer products.
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#include <DVecSVecOuterExpr.h>
Inherits blaze::VecTVecMultExpr< SparseMatrix< DVecSVecOuterExpr< VT1, VT2 >, false > >, and blaze::Computation.
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class | ConstIterator |
| Iterator over the elements of the dense vector-sparse vector outer product expression. More...
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using | This = DVecSVecOuterExpr< VT1, VT2 > |
| Type of this DVecSVecOuterExpr instance.
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using | BaseType = SparseMatrix< This, false > |
| Base type of this DVecSVecOuterExpr instance.
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using | ResultType = MultTrait_t< RT1, RT2 > |
| Result type for expression template evaluations.
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using | OppositeType = OppositeType_t< ResultType > |
| Result type with opposite storage order 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 DVecSVecOuterExpr &> |
| 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 sparse vector expression.
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using | LT = If_t< IsComputation_v< VT1 >, const RT1, CT1 > |
| Type for the assignment of the left-hand side dense vector operand.
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using | RT = If_t< IsComputation_v< VT2 >, const RT2, CT2 > |
| Type for the assignment of the right-hand side dense vector operand.
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using | MatrixType = DVecSVecOuterExpr< VT1, VT2 > |
| Type of the matrix.
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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 sparse 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 sparse 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 sparse 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 sparse 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 multiplication expression.
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RightOperand | rhs_ |
| Right-hand side sparse vector of the multiplication expression.
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template<typename VT1, typename VT2>
class blaze::DVecSVecOuterExpr< VT1, VT2 >
Expression object for dense vector-sparse vector outer products.
The DVecSVecOuterExpr class represents the compile time expression for dense vector-sparse vector outer products.
◆ DVecSVecOuterExpr()
template<typename VT1 , typename VT2 >
Constructor for the DVecSVecOuterExpr class.
- Parameters
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lhs | The left-hand side dense vector operand of the multiplication expression. |
rhs | The right-hand side sparse vector operand of the multiplication expression. |
◆ at()
template<typename VT1 , typename VT2 >
Checked access to the matrix elements.
- Parameters
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i | Access index for the row. The index has to be in the range . |
j | Access index for the column. The index has to be in the range . |
- Returns
- The resulting value.
- Exceptions
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std::out_of_range | Invalid matrix access index. |
◆ begin()
template<typename VT1 , typename VT2 >
Returns an iterator to the first non-zero element of row i.
- Parameters
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- Returns
- Iterator to the first non-zero element of row i.
◆ canAlias()
template<typename VT1 , typename VT2 >
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 an alias effect is detected, false otherwise.
◆ columns()
template<typename VT1 , typename VT2 >
Returns the current number of columns of the matrix.
- Returns
- The number of columns of the matrix.
◆ end()
template<typename VT1 , typename VT2 >
Returns an iterator just past the last non-zero element of row i.
- Parameters
-
- Returns
- Iterator just past the last non-zero element of row i.
◆ find()
template<typename VT1 , typename VT2 >
Searches for a specific matrix element.
- Parameters
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i | The row index of the search element. |
j | The column index of the search element. |
- Returns
- Iterator to the element in case the index is found, end() iterator otherwise.
◆ isAliased()
template<typename VT1 , typename VT2 >
template<typename T >
Returns whether the expression is aliased with the given address alias.
- Parameters
-
alias | The alias to be checked. |
- Returns
- true in case an alias effect is detected, false otherwise.
◆ leftOperand()
template<typename VT1 , typename VT2 >
Returns the left-hand side dense vector operand.
- Returns
- The left-hand side dense vector operand.
◆ lowerBound()
template<typename VT1 , typename VT2 >
Returns an iterator to the first index not less then the given index.
- Parameters
-
i | The row index of the search element. |
j | The column index of the search element. |
- Returns
- Iterator to the first index not less then the given index, end() iterator otherwise.
◆ nonZeros() [1/2]
template<typename VT1 , typename VT2 >
Returns the number of non-zero elements in the sparse matrix.
- Returns
- The number of non-zero elements in the sparse matrix.
◆ nonZeros() [2/2]
template<typename VT1 , typename VT2 >
Returns the number of non-zero elements in the specified row.
- Parameters
-
- Returns
- The number of non-zero elements of row i.
◆ operator()()
template<typename VT1 , typename VT2 >
2D-access to the matrix elements.
- Parameters
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i | Access index for the row. The index has to be in the range . |
j | Access index for the column. The index has to be in the range . |
- Returns
- The resulting value.
◆ operator~() [1/2]
Conversion operator for non-constant matrices.
- Returns
- Reference of the actual type of the matrix.
◆ operator~() [2/2]
Conversion operator for constant matrices.
- Returns
- Constant reference of the actual type of the matrix.
◆ rightOperand()
template<typename VT1 , typename VT2 >
Returns the right-hand side sparse vector operand.
- Returns
- The right-hand side sparse vector operand.
◆ rows()
template<typename VT1 , typename VT2 >
Returns the current number of rows of the matrix.
- Returns
- The number of rows of the matrix.
◆ upperBound()
template<typename VT1 , typename VT2 >
Returns an iterator to the first index greater then the given index.
- Parameters
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i | The row index of the search element. |
j | The column index of the search element. |
- Returns
- Iterator to the first index greater then the given index, end() iterator otherwise.
◆ returnExpr
template<typename VT1 , typename VT2 >
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 false and the subscript operator will return it's result by value. Otherwise returnExpr will be set to true and the subscript operator may return it's result as an expression.
◆ useAssign
template<typename VT1 , typename VT2 >
Initial value:=
( IsComputation_v<VT1> || !IsNumeric_v<ET1> || IsComputation_v<VT2> || !IsNumeric_v<ET2> )
Compilation switch for the evaluation strategy of the multiplication expression.
The useAssign compile time constant expression represents a compilation switch for the evaluation strategy of the multiplication expression. In case either the dense or the sparse vector operand is a computational expression or if any of two involved element types is not a numeric data type, useAssign will be set to true and the multiplication expression will be evaluated via the assign function family. Otherwise useAssign will be set to false and the expression will be evaluated via the subscript operator.
The documentation for this class was generated from the following file: