Implementation of object iteration from STD container. More...

#include <JSTDObjectIterator.hh>

Inheritance diagram for JLANG::JSTDObjectIterator< T >:

Public Types
typedef JCategory< typename T::value_type, JClass < typename T::reference > ::is_constant >::value_type	value_type

typedef JRewindableObjectIterator < value_type >::pointer_type	pointer_type

Public Member Functions
	JSTDObjectIterator ()
	Default constructor. More...

	JSTDObjectIterator (T begin, T end)
	Constructor. More...

virtual void	rewind () override
	Rewind. More...

virtual bool	hasNext () override
	Check availability of next element. More...

virtual const pointer_type &	next () override
	Get next element. More...

virtual skip_type	skip (const skip_type ns) override
	Skip items. More...

Protected Attributes
T	__begin

T	__end

T	__i

Private Attributes
pointer_type	ps

Detailed Description

template<class T>
struct JLANG::JSTDObjectIterator< T >

Implementation of object iteration from STD container.

Definition at line 25 of file JSTDObjectIterator.hh.

Member Typedef Documentation

template<class T >

typedef JCategory<typename T::value_type, JClass<typename T::reference>::is_constant>::value_type JLANG::JSTDObjectIterator< T >::value_type

Definition at line 30 of file JSTDObjectIterator.hh.

template<class T >

typedef JRewindableObjectIterator<value_type>::pointer_type JLANG::JSTDObjectIterator< T >::pointer_type

Definition at line 31 of file JSTDObjectIterator.hh.

Constructor & Destructor Documentation

template<class T >

JLANG::JSTDObjectIterator< T >::JSTDObjectIterator ( )

inline

Default constructor.

Definition at line 36 of file JSTDObjectIterator.hh.

37 {}

template<class T >

JLANG::JSTDObjectIterator< T >::JSTDObjectIterator	(	T	begin,
		T	end
	)

inline

Constructor.

Parameters

begin	begin of data
end	end of data

Definition at line 46 of file JSTDObjectIterator.hh.

                               :
       __begin(begin),
       __end  (end),
       __i    (begin)
     {}

Member Function Documentation

template<class T >

virtual void JLANG::JSTDObjectIterator< T >::rewind ( )

inlineoverridevirtual

Rewind.

Implements JLANG::JRewindable< JCategory< T::value_type, JClass< T::reference >::is_constant >::value_type >.

Definition at line 57 of file JSTDObjectIterator.hh.

     {
       __i = __begin;
     }

template<class T >

virtual bool JLANG::JSTDObjectIterator< T >::hasNext ( )

inlineoverridevirtual

Check availability of next element.

Returns: true if the iteration has more elements; else false

Implements JLANG::JObjectIterator< JCategory< T::value_type, JClass< T::reference >::is_constant >::value_type >.

Definition at line 68 of file JSTDObjectIterator.hh.

     {
       return __i != __end;
     }

template<class T >

virtual const pointer_type& JLANG::JSTDObjectIterator< T >::next ( )

inlineoverridevirtual

Get next element.

Returns: pointer to element

Implements JLANG::JObjectIterator< JCategory< T::value_type, JClass< T::reference >::is_constant >::value_type >.

Definition at line 79 of file JSTDObjectIterator.hh.

     {
       if (hasNext())
         ps.reset(&(*__i++));
       else
         ps.reset(NULL);
       
       return ps;
     }

template<class T >

virtual skip_type JLANG::JSTDObjectIterator< T >::skip ( const skip_type ns )

inlineoverridevirtual

Skip items.

Parameters

ns	number of items to skip

Returns: number of items skipped

Reimplemented from JLANG::JObjectIterator< JCategory< T::value_type, JClass< T::reference >::is_constant >::value_type >.

Definition at line 96 of file JSTDObjectIterator.hh.

     {
       using namespace std;
 
       skip_type i = min(ns, (skip_type) distance(__i, __end));
       
       advance(__i, i);
 
       return i;
     }