VoSiVi< _elementOperationType > Class Template Reference

Implement operation of the form \(v_o = op(s_i, v_i)\) for fixed size vectors. More...

#include <vctFixedSizeVectorRecursiveEngines.h>

Public Types
typedef vctFixedSizeVectorRecursiveEngines< _size-1 >::template VoSiVi< _elementOperationType >	RecursiveStep

Static Public Member Functions
template<class _outputVectorType, class _inputScalarType, class _inputVectorType>
static void	Unfold (_outputVectorType &output, const _inputScalarType &inputScalar, const _inputVectorType inputVector)

Detailed Description

template<class _elementOperationType>
class VoSiVi< _elementOperationType >

Implement operation of the form \(v_o = op(s_i, v_i)\) for fixed size vectors.

This class uses template specialization to perform binary vector operations of the form

\[v_o = \mathrm{op}(s_i, v_i) \]

where \(v_o\) is the output vector, and \(s_i, v_i\) are input scalar and vector, all vectors are of an equal fixed size, determined at compilation time, op stands for the a binary operation performed elementwise between \(s_i\) and \(v_i\), and whose result is stored elementwise into \(v_o\).

The operation type operationType must have a static method with the signature

static operationType Operation(const I1E & arg1, const I2E & arg2)

where OE, I1E, I2E are the types of vector elements in \(v_o, v_i s_i\) respectively. These types do not need to be defined explicitly for vctFixedSizeVectorRecursiveEngines class, as they are inferred from the signature of the corresponding operator[] for each of the vector types. However, they may need to be defined for the class operationType.

For examples of binary operations, see vctBinaryOperations.h .

Usage example for vctFixedSizeVectorRecursiveEngines::VoSiVi:

enum {SIZE = 3};
int input1[SIZE];
float a;
double output[SIZE];

vctFixedSizeVectorRecursiveEngines<SIZE>::VoSiVi<vctBinaryOperations<int,float,double>::Addition>::Unfold(output, scalar, input1);

stores the sum of elements of s and input1 into output.

Parameters

_elementOperationType

The type of the binary operation.

See also

vctFixedSizeVectorRecursiveEngines

Member Typedef Documentation

RecursiveStep

template<class _elementOperationType>

typedef vctFixedSizeVectorRecursiveEngines<_size-1>::template VoSiVi<_elementOperationType> VoSiVi< _elementOperationType >::RecursiveStep

Member Function Documentation

Unfold()

template<class _elementOperationType>

template<class _outputVectorType, class _inputScalarType, class _inputVectorType>

void VoSiVi< _elementOperationType >::Unfold ( _outputVectorType & output, const _inputScalarType & inputScalar, const _inputVectorType inputVector )

inlinestatic

Unfold the recursion. Performs the operation _elementOperationType elementwise on the last elements of the input vector and scalar and call Unfold for the _size - 1 elements left (i.e. unfold the recursive calls).

Parameters

output	The output vector.
inputScalar	The input scalar (first operand).
inputVector	The input vector (second operand).

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

• tmp/cisst-saw/cisst/cisstVector/vctFixedSizeVectorRecursiveEngines.h