DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType > Class Template Reference

#include <ConstIteratorAdapter.h>

Public Types
typedef IteratorCirculatorTraits < TIterator >::Type	Type

Public Member Functions
	ConstIteratorAdapter ()
	ConstIteratorAdapter (TIterator const &i, TLightFunctor f)
template<class OtherFunctor , class OtherIterator , class OtherReturnType >
	ConstIteratorAdapter (ConstIteratorAdapter< OtherFunctor, OtherIterator, OtherReturnType > const &other)
TLightFunctor	functor () const

Private Types
typedef boost::iterator_adaptor < ConstIteratorAdapter < TIterator, TLightFunctor, TReturnType >, TIterator, TReturnType, boost::use_default, TReturnType >	Super

Private Member Functions
Super::reference	dereference () const

Private Attributes
TLightFunctor	myF

Friends
class	boost::iterator_core_access

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Detailed Description

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>
class DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >

This class adapts any iterator so that operator* returns another element than the one pointed to by the iterator.

Description of template class 'ConstIteratorAdapter'

Template Parameters:

TIterator

the type of the iterator to adapt

To achieve this goal, the adapter is based on a functor f given at construction so that operator* calls f(<em>it), instead of calling directly operator of the underlying iterator it.

Template Parameters:

TLightFunctor	the type of functor that transforms the pointed element into another one (required to be light because the functor is passed by value)
TReturnType	the type of the element returned by the underlying functor (if TLightFunctor has a nested type called 'Value', TReturnType is set to TLightFunctor::Value by default)

NB: from boost/iterator/transform_iterator.hpp

Definition at line 79 of file ConstIteratorAdapter.h.

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Member Typedef Documentation

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

typedef boost::iterator_adaptor< ConstIteratorAdapter<TIterator,TLightFunctor,TReturnType>, TIterator, TReturnType, boost::use_default, TReturnType > DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::Super

private

Definition at line 86 of file ConstIteratorAdapter.h.

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

typedef IteratorCirculatorTraits<TIterator>::Type DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::Type

Definition at line 92 of file ConstIteratorAdapter.h.

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Constructor & Destructor Documentation

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::ConstIteratorAdapter ( )

inline

Default constructor

Definition at line 98 of file ConstIteratorAdapter.h.

{ }

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::ConstIteratorAdapter ( TIterator const &  i, TLightFunctor  f  )

inline

Constructor

Parameters:

i	any iterator
f	any functor

Definition at line 106 of file ConstIteratorAdapter.h.

      : Super(i), myF(f) { }

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

template<class OtherFunctor , class OtherIterator , class OtherReturnType >

DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::ConstIteratorAdapter ( ConstIteratorAdapter< OtherFunctor, OtherIterator, OtherReturnType > const &  other )

inline

Copy constructor

Parameters:

other

the object to copy

Definition at line 118 of file ConstIteratorAdapter.h.

      : Super(other.base()), myF(other.functor())
   {}

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Member Function Documentation

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

Super::reference DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::dereference ( ) const

inlineprivate

Dereference function

Returns:

the object returned by the functor from the element pointed by the underlying iterator

Definition at line 140 of file ConstIteratorAdapter.h.

References DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::myF.

    { return myF(*this->base()); }

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

TLightFunctor DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::functor ( ) const

inline

Accessor on the functor

Returns:

a copy of myF

Definition at line 129 of file ConstIteratorAdapter.h.

References DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::myF.

      { return myF; }

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Friends And Related Function Documentation

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

friend class boost::iterator_core_access

friend

Definition at line 88 of file ConstIteratorAdapter.h.

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Field Documentation

template<typename TIterator, typename TLightFunctor, typename TReturnType = typename TLightFunctor::Value>

TLightFunctor DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::myF

private

functor

Definition at line 144 of file ConstIteratorAdapter.h.

Referenced by DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::dereference(), and DGtal::ConstIteratorAdapter< TIterator, TLightFunctor, TReturnType >::functor().

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

• ConstIteratorAdapter.h