VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp > Struct Template Reference

#include <itkVariableLengthVector.h>

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 1160 of file 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
RealValueType	GetNorm () const
RealValueType	GetSquaredNorm () const
unsigned int	Size () const
	VariableLengthVectorExpression (TExpr1 const &lhs, TExpr2 const &rhs)
ResType	operator[] (unsigned int idx) const

Private Attributes
TExpr1 const &	m_lhs
TExpr2 const &	m_rhs

Member Typedef Documentation

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 1180 of file itkVariableLengthVector.h.

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 1178 of file itkVariableLengthVector.h.

Constructor & Destructor Documentation

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

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

inline

Definition at line 1162 of file itkVariableLengthVector.h.

References itkStaticAssert.

Member Function Documentation

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

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

(

)

const

Returns vector's Euclidean Norm

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

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

(

)

const

Returns vector's squared Euclidean Norm

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 1192 of file itkVariableLengthVector.h.

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 1173 of file itkVariableLengthVector.h.

Member Data Documentation

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

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

private

Definition at line 1208 of file itkVariableLengthVector.h.

template<typename TExpr1, typename TExpr2, typename TBinaryOp>

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

private

Definition at line 1209 of file itkVariableLengthVector.h.

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

• itkVariableLengthVector.h