VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp > Struct Template Reference

#include <itkVariableLengthVector.h>

Public Types
using	RealValueType = typename NumericTraits< ResType >::RealType
using	ResType = typename mpl::PromoteType< typename Details::GetType< TExpr1 >::Type, typename Details::GetType< TExpr2 >::Type >::Type

Public Member Functions
unsigned int	Size () const
	VariableLengthVectorExpression (TExpr1 const &lhs, TExpr2 const &rhs)
const TExpr1 &	m_lhs
const TExpr2 &	m_rhs
ResType	operator[] (unsigned int idx) const
RealValueType	GetNorm () const
RealValueType	GetSquaredNorm () const

Detailed Description

template<typename TExpr1, typename TExpr2, typename TBinaryOp>
struct VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >

Expression Template for VariableLengthVector. Contains an expression template that models a binary operation between two sub expressions (of type VariableLengthVector, or VariableLengthVectorExpression)

Template Parameters

TExpr1	Type of the left sub-expression
TExpr2	Type of the right sub-expression
TBinaryOp	Binary Operation to apply to both sub-expressions.

Note

We permit to add a VariableLengthVector<float> with a VariableLengthVector<double>, the result will be of type VariableLengthVector<double>.

Warning

Explicitly static casting an expression to a VariableLengthVector<> will defeat the purpose of the optimization implemented here. It's thus best to let the expression automatically adjust to the type with the most precision. Eventually, when assigning to the final destination (a VariableLengthVector<>), a casting on-the-fly could be realized by the assignment operator, or by the copy constructor.

Todo:

Add support for unary operations like operator-().

Definition at line 1233 of file itkVariableLengthVector.h.

Member Typedef Documentation

RealValueType

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

using VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::RealValueType = typename NumericTraits<ResType>::RealType

Real type of the elements.

Definition at line 1256 of file itkVariableLengthVector.h.

ResType

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

using VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::ResType = typename mpl::PromoteType<typename Details::GetType<TExpr1>::Type, typename Details::GetType<TExpr2>::Type>::Type

Vector type of the Result Expression.

Definition at line 1254 of file itkVariableLengthVector.h.

Constructor & Destructor Documentation

VariableLengthVectorExpression()

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::VariableLengthVectorExpression ( TExpr1 const &  lhs, TExpr2 const &  rhs  )

inline

Definition at line 1235 of file itkVariableLengthVector.h.

References itkStaticAssert.

Member Function Documentation

GetNorm()

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

RealValueType VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::GetNorm

(

)

const

Returns vector's Euclidean Norm

GetSquaredNorm()

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

RealValueType VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::GetSquaredNorm

(

)

const

Returns vector's squared Euclidean Norm

operator[]()

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

ResType VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::operator[] ( unsigned int  idx ) const

inline

Element access operator.

Precondition

idx < Size()

Definition at line 1268 of file itkVariableLengthVector.h.

Size()

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

unsigned int VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::Size ( ) const

inline

Returns the size of the vector expression.

Definition at line 1247 of file itkVariableLengthVector.h.

Member Data Documentation

m_lhs

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

const TExpr1& VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::m_lhs

private

Element access operator.

Precondition

idx < Size()

Definition at line 1284 of file itkVariableLengthVector.h.

m_rhs

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

const TExpr2& VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp >::m_rhs

private

Element access operator.

Precondition

idx < Size()

Definition at line 1285 of file itkVariableLengthVector.h.

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The documentation for this struct was generated from the following file:

• itkVariableLengthVector.h