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blaze::SVecTDVecMultExpr< typename, typename > Class Template Reference

Expression object for sparse vector-dense vector outer products.The SVecTDVecMultExpr class represents the compile time expression for sparse vector-dense vector outer products. More...

#include <SVecTDVecMultExpr.h>

Inherits blaze::SparseMatrix< SVecTDVecMultExpr< VT1, VT2 >, true >, blaze::VecTVecMultExpr, and blaze::Computation.

Classes

class  ConstIterator
 Iterator over the elements of the sparse vector-dense vector outer product expression. More...
 

Public Types

typedef SVecTDVecMultExpr< VT1,
VT2 > 
This
 Type of this SVecTDVecMultExpr instance.
 
typedef MultTrait< RT1, RT2 >::Type ResultType
 Result type for expression template evaluations.
 
typedef ResultType::OppositeType OppositeType
 Result type with opposite storage order for expression template evaluations.
 
typedef ResultType::TransposeType TransposeType
 Transpose type for expression template evaluations.
 
typedef ResultType::ElementType ElementType
 Resulting element type.
 
typedef const SelectType
< returnExpr, ExprReturnType,
ElementType >::Type 
ReturnType
 Return type for expression template evaluations.
 
typedef SelectType< useAssign,
const ResultType, const
SVecTDVecMultExpr & >::Type 
CompositeType
 Data type for composite expression templates.
 
typedef SelectType
< IsExpression< VT1 >::value,
const VT1, const VT1 & >::Type 
LeftOperand
 Composite type of the left-hand side sparse vector expression.
 
typedef SelectType
< IsExpression< VT2 >::value,
const VT2, const VT2 & >::Type 
RightOperand
 Composite type of the right-hand side dense vector expression.
 
typedef SelectType
< IsComputation< VT1 >::value,
const RT1, CT1 >::Type 
LT
 Type for the assignment of the left-hand side dense vector operand.
 
typedef SelectType
< IsComputation< VT2 >::value,
const RT2, CT2 >::Type 
RT
 Type for the assignment of the right-hand side dense vector operand.
 
typedef MT MatrixType
 Type of the matrix.
 

Public Member Functions

 SVecTDVecMultExpr (const VT1 &lhs, const VT2 &rhs)
 Constructor for the SVecTDVecMultExpr class. More...
 
ReturnType operator() (size_t i, size_t j) const
 2D-access to the matrix elements. More...
 
ConstIterator begin (size_t i) const
 Returns an iterator to the first non-zero element of column i. More...
 
ConstIterator end (size_t i) const
 Returns an iterator just past the last non-zero element of column i. More...
 
size_t rows () const
 Returns the current number of rows of the matrix. More...
 
size_t columns () const
 Returns the current number of columns of the matrix. More...
 
size_t nonZeros () const
 Returns the number of non-zero elements in the sparse matrix. More...
 
size_t nonZeros (size_t i) const
 Returns the number of non-zero elements in the specified column. More...
 
LeftOperand leftOperand () const
 Returns the left-hand side sparse vector operand. More...
 
RightOperand rightOperand () const
 Returns the right-hand side dense vector operand. More...
 
template<typename T >
bool canAlias (const T *alias) const
 Returns whether the expression can alias with the given address alias. More...
 
template<typename T >
bool isAliased (const T *alias) const
 Returns whether the expression is aliased with the given address alias. More...
 
MatrixTypeoperator~ ()
 Conversion operator for non-constant matrices. More...
 
const MatrixTypeoperator~ () const
 Conversion operator for constant matrices. More...
 

Private Types

enum  { returnExpr = !IsTemporary<RN1>::value && !IsTemporary<RN2>::value }
 Compilation switch for the selection of the subscript operator return type. More...
 
enum  { useAssign }
 Compilation switch for the evaluation strategy of the multiplication expression. More...
 
typedef VT1::ResultType RT1
 Result type of the left-hand side sparse vector expression.
 
typedef VT2::ResultType RT2
 Result type of the right-hand side dense vector expression.
 
typedef VT1::ReturnType RN1
 Return type of the left-hand side sparse vector expression.
 
typedef VT2::ReturnType RN2
 Return type of the right-hand side dense vector expression.
 
typedef VT1::CompositeType CT1
 Composite type of the left-hand side sparse vector expression.
 
typedef VT2::CompositeType CT2
 Composite type of the right-hand side dense vector expression.
 
typedef VT1::ElementType ET1
 Element type of the left-hand side sparse vector expression.
 
typedef VT2::ElementType ET2
 Element type of the right-hand side dense vector expression.
 
typedef MultExprTrait< RN1,
RN2 >::Type 
ExprReturnType
 Expression return type for the subscript operator.
 

Private Attributes

LeftOperand lhs_
 Left-hand side sparse vector of the multiplication expression.
 
RightOperand rhs_
 Right-hand side dense vector of the multiplication expression.
 

Detailed Description

template<typename, typename>
class blaze::SVecTDVecMultExpr< typename, typename >

Expression object for sparse vector-dense vector outer products.

The SVecTDVecMultExpr class represents the compile time expression for sparse vector-dense vector outer products.

Member Enumeration Documentation

template<typename , typename >
anonymous enum
private

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.

template<typename , typename >
anonymous enum
private

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 sparse or the dense vector operand is an 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.

Constructor & Destructor Documentation

template<typename , typename >
blaze::SVecTDVecMultExpr< typename, typename >::SVecTDVecMultExpr ( const VT1 &  lhs,
const VT2 &  rhs 
)
inlineexplicit

Constructor for the SVecTDVecMultExpr class.

Parameters
lhsThe left-hand side sparse vector operand of the multiplication expression.
rhsThe right-hand side dense vector operand of the multiplication expression.

Member Function Documentation

template<typename , typename >
ConstIterator blaze::SVecTDVecMultExpr< typename, typename >::begin ( size_t  i) const
inline

Returns an iterator to the first non-zero element of column i.

Parameters
iThe row index.
Returns
Iterator to the first non-zero element of column i.
template<typename , typename >
template<typename T >
bool blaze::SVecTDVecMultExpr< typename, typename >::canAlias ( const T *  alias) const
inline

Returns whether the expression can alias with the given address alias.

Parameters
aliasThe alias to be checked.
Returns
true in case the expression can alias, false otherwise.
template<typename , typename >
size_t blaze::SVecTDVecMultExpr< typename, typename >::columns ( ) const
inline

Returns the current number of columns of the matrix.

Returns
The number of columns of the matrix.
template<typename , typename >
ConstIterator blaze::SVecTDVecMultExpr< typename, typename >::end ( size_t  i) const
inline

Returns an iterator just past the last non-zero element of column i.

Parameters
iThe row index.
Returns
Iterator just past the last non-zero element of column i.
template<typename , typename >
template<typename T >
bool blaze::SVecTDVecMultExpr< typename, typename >::isAliased ( const T *  alias) const
inline

Returns whether the expression is aliased with the given address alias.

Parameters
aliasThe alias to be checked.
Returns
true in case an alias effect is detected, false otherwise.
template<typename , typename >
LeftOperand blaze::SVecTDVecMultExpr< typename, typename >::leftOperand ( ) const
inline

Returns the left-hand side sparse vector operand.

Returns
The left-hand side sparse vector operand.
template<typename , typename >
size_t blaze::SVecTDVecMultExpr< typename, typename >::nonZeros ( ) const
inline

Returns the number of non-zero elements in the sparse matrix.

Returns
The number of non-zero elements in the sparse matrix.
template<typename , typename >
size_t blaze::SVecTDVecMultExpr< typename, typename >::nonZeros ( size_t  i) const
inline

Returns the number of non-zero elements in the specified column.

Parameters
iThe index of the column.
Returns
The number of non-zero elements of column i.
template<typename , typename >
ReturnType blaze::SVecTDVecMultExpr< typename, typename >::operator() ( size_t  i,
size_t  j 
) const
inline

2D-access to the matrix elements.

Parameters
iAccess index for the row. The index has to be in the range $[0..M-1]$.
jAccess index for the column. The index has to be in the range $[0..N-1]$.
Returns
The resulting value.
MatrixType& blaze::Matrix< typename, bool >::operator~ ( )
inlineinherited

Conversion operator for non-constant matrices.

Returns
Reference of the actual type of the matrix.
const MatrixType& blaze::Matrix< typename, bool >::operator~ ( ) const
inlineinherited

Conversion operator for constant matrices.

Returns
Constant reference of the actual type of the matrix.
template<typename , typename >
RightOperand blaze::SVecTDVecMultExpr< typename, typename >::rightOperand ( ) const
inline

Returns the right-hand side dense vector operand.

Returns
The right-hand side dense vector operand.
template<typename , typename >
size_t blaze::SVecTDVecMultExpr< typename, typename >::rows ( ) const
inline

Returns the current number of rows of the matrix.

Returns
The number of rows of the matrix.

The documentation for this class was generated from the following files: