DGtal::Composer< TFunctor1, TFunctor2, ReturnType > Class Template Reference

#include <BasicFunctors.h>

Public Member Functions
	Composer ()
	Composer (const TFunctor1 &aF1, const TFunctor2 &aF2)
	Composer (const Composer &other)
Composer &	operator= (const Composer &other)
template<typename TInput >
ReturnType	operator() (const TInput &aInput) const

Private Attributes
const TFunctor1 *	myF1
const TFunctor2 *	myF2

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Detailed Description

template<typename TFunctor1, typename TFunctor2, typename ReturnType>
class DGtal::Composer< TFunctor1, TFunctor2, ReturnType >

Aim: Define a new Functor from the composition of two other functors.

Description of template class 'Composer'

Template Parameters:

TFunctor1	first functor
TFunctor2	second functor
ReturnType

Definition at line 203 of file BasicFunctors.h.

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Constructor & Destructor Documentation

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::Composer ( )

inline

Default constructor

Definition at line 209 of file BasicFunctors.h.

: myF1(NULL), myF2(NULL) {}

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::Composer ( const TFunctor1 &  aF1, const TFunctor2 &  aF2  )

inline

Constructor

Parameters:

aF1	any Functor
aF2	any Functor

Definition at line 215 of file BasicFunctors.h.

: myF1(&aF1), myF2(&aF2) {}

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::Composer ( const Composer< TFunctor1, TFunctor2, ReturnType > &  other )

inline

Copy Operator

Parameters:

other

object to copy

Definition at line 220 of file BasicFunctors.h.

: myF1(other.myF1), myF2(other.myF2) {}

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Member Function Documentation

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

template<typename TInput >

ReturnType DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::operator() ( const TInput &  aInput ) const

inline

Operator ()

NB: myF2 return type should be equal to (or implicitly castable into) ReturnType

Returns:

object of type ReturnType coming from the composition myF1 o myF2 on aInput, ie. myF2 ( myF1 ( aInput ) )

Template Parameters:

TInput

type of the input value

Definition at line 251 of file BasicFunctors.h.

References DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::myF1, and DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::myF2.

    {
      ASSERT( myF1 ); 
      ASSERT( myF2 ); 
      return myF2->operator()( myF1->operator()( aInput ) );
    }

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

Composer& DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::operator= ( const Composer< TFunctor1, TFunctor2, ReturnType > &  other )

inline

Assignement Operator

Parameters:

other

object to copy

Definition at line 226 of file BasicFunctors.h.

References DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::myF1, and DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::myF2.

    {
      if (this != &other)
        {
          myF1 = other.myF1; 
          myF2 = other.myF2;
        }
    return *this;
    }

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Field Documentation

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

const TFunctor1* DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::myF1

private

Aliasing pointer to the first functor.

Definition at line 262 of file BasicFunctors.h.

Referenced by DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::operator()(), and DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::operator=().

template<typename TFunctor1, typename TFunctor2, typename ReturnType>

const TFunctor2* DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::myF2

private

Aliasing pointer to the second functor.

Definition at line 266 of file BasicFunctors.h.

Referenced by DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::operator()(), and DGtal::Composer< TFunctor1, TFunctor2, ReturnType >::operator=().

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

• BasicFunctors.h