DGtal::OneItemOutputIterator< T > Class Template Reference

Aim: model of output iterator, ie incrementable and writable iterator, which only stores in a variable the last assigned item. More...

#include <DGtal/base/OneItemOutputIterator.h>

Inheritance diagram for DGtal::OneItemOutputIterator< T >:

Public Member Functions
	OneItemOutputIterator ()
	OneItemOutputIterator (const OneItemOutputIterator &other)
OneItemOutputIterator &	operator= (const T &aItem)
OneItemOutputIterator &	operator* ()
OneItemOutputIterator &	operator++ ()
OneItemOutputIterator	operator++ (int)
T	get () const
bool	isValid () const

Private Member Functions
	BOOST_CONCEPT_ASSERT ((boost::DefaultConstructible< T >))
	BOOST_CONCEPT_ASSERT ((boost::CopyConstructible< T >))
	BOOST_CONCEPT_ASSERT ((boost::Assignable< T >))

Private Attributes
T *	myItemPtr
	pointer that stores the last assigned item More...

Detailed Description

template<typename T>
class DGtal::OneItemOutputIterator< T >

Aim: model of output iterator, ie incrementable and writable iterator, which only stores in a variable the last assigned item.

Description of template class 'OneItemOutputIterator'

Template Parameters

T	at least a default constructible, copy constuctible and assignable type.

Definition at line 59 of file OneItemOutputIterator.h.

Constructor & Destructor Documentation

OneItemOutputIterator() [1/2]

template<typename T >

DGtal::OneItemOutputIterator< T >::OneItemOutputIterator ( )

inline

Default constructor.

Definition at line 73 of file OneItemOutputIterator.h.

                           : myItemPtr(NULL)
    {
      myItemPtr = new T(); 
    }

References DGtal::OneItemOutputIterator< T >::myItemPtr.

OneItemOutputIterator() [2/2]

template<typename T >

DGtal::OneItemOutputIterator< T >::OneItemOutputIterator ( const OneItemOutputIterator< T > &  other )

inline

Copy constructor.

Definition at line 80 of file OneItemOutputIterator.h.

: myItemPtr(other.myItemPtr) {}

Member Function Documentation

BOOST_CONCEPT_ASSERT() [1/3]

template<typename T >

DGtal::OneItemOutputIterator< T >::BOOST_CONCEPT_ASSERT ( (boost::Assignable< T >)  )

private

BOOST_CONCEPT_ASSERT() [2/3]

template<typename T >

DGtal::OneItemOutputIterator< T >::BOOST_CONCEPT_ASSERT ( (boost::CopyConstructible< T >)  )

private

BOOST_CONCEPT_ASSERT() [3/3]

template<typename T >

DGtal::OneItemOutputIterator< T >::BOOST_CONCEPT_ASSERT ( (boost::DefaultConstructible< T >)  )

private

get()

template<typename T >

T DGtal::OneItemOutputIterator< T >::get ( ) const

inline

Accessor to the last assigned item.

Returns

the content of myItem.

Definition at line 119 of file OneItemOutputIterator.h.

    {
      ASSERT( isValid() ); 
      return *myItemPtr; 
    }

References DGtal::OneItemOutputIterator< T >::isValid(), and DGtal::OneItemOutputIterator< T >::myItemPtr.

isValid()

template<typename T >

bool DGtal::OneItemOutputIterator< T >::isValid ( ) const

inline

Checks the validity/consistency of the object.

Returns

'true' if the object is valid, 'false' otherwise.

Definition at line 129 of file OneItemOutputIterator.h.

{ return (myItemPtr != NULL); }

References DGtal::OneItemOutputIterator< T >::myItemPtr.

Referenced by DGtal::OneItemOutputIterator< T >::get(), and DGtal::OneItemOutputIterator< T >::operator=().

operator*()

template<typename T >

OneItemOutputIterator& DGtal::OneItemOutputIterator< T >::operator* ( )

inline

Dereference operator

Returns

a reference to *this

Definition at line 101 of file OneItemOutputIterator.h.

{ return *this; }

operator++() [1/2]

template<typename T >

OneItemOutputIterator& DGtal::OneItemOutputIterator< T >::operator++ ( )

inline

Pre-increment operator

Returns

a reference to *this

Definition at line 107 of file OneItemOutputIterator.h.

{ return *this; }

operator++() [2/2]

template<typename T >

OneItemOutputIterator DGtal::OneItemOutputIterator< T >::operator++ ( int  )

inline

Post-increment operator

Returns

*this

Definition at line 113 of file OneItemOutputIterator.h.

{ return *this; } 

operator=()

template<typename T >

OneItemOutputIterator& DGtal::OneItemOutputIterator< T >::operator= ( const T &  aItem )

inline

Assignment

Parameters

aItem

any item

Returns

a reference to *this

Definition at line 90 of file OneItemOutputIterator.h.

    { 
      ASSERT( isValid() ); 
      *myItemPtr = aItem;
      return *this; 
    }

References DGtal::OneItemOutputIterator< T >::isValid(), and DGtal::OneItemOutputIterator< T >::myItemPtr.

Field Documentation

myItemPtr

template<typename T >

T* DGtal::OneItemOutputIterator< T >::myItemPtr

private

pointer that stores the last assigned item

Definition at line 134 of file OneItemOutputIterator.h.

Referenced by DGtal::OneItemOutputIterator< T >::get(), DGtal::OneItemOutputIterator< T >::isValid(), DGtal::OneItemOutputIterator< T >::OneItemOutputIterator(), and DGtal::OneItemOutputIterator< T >::operator=().

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

• OneItemOutputIterator.h