Gaudi::details::index_iterator< ITERATOR, INDICES > Class Template Reference

"index" iterator iterates ober "indiced" intries in the cotainer/range More...

#include <GaudiKernel/SmartRanges.h>

Inheritance diagram for Gaudi::details::index_iterator< ITERATOR, INDICES >:

Collaboration diagram for Gaudi::details::index_iterator< ITERATOR, INDICES >:

Public Member Functions
	index_iterator (const INDICES &indices, ITERATOR b, ITERATOR e)
	index_iterator (INDICES &&indices, ITERATOR b, ITERATOR e)
	index_iterator ()

Private Member Functions
void	increment ()
std::iterator_traits< ITERATOR >::reference	dereference () const
bool	equal (const index_iterator &other) const

Private Attributes
ITERATOR	m_begin
std::size_t	m_size
INDICES	m_indices
std::size_t	m_index

Friends
class	boost::iterator_core_access

Detailed Description

template<class ITERATOR, class INDICES>
class Gaudi::details::index_iterator< ITERATOR, INDICES >

"index" iterator iterates ober "indiced" intries in the cotainer/range

• INDICES can be something like std::vector<unsigned int>

  Author

  Vanya BELYAEV Ivan..nosp@m.Bely.nosp@m.aev@i.nosp@m.tep..nosp@m.ru

  Date

  2016-09-20

Definition at line 108 of file SmartRanges.h.

Constructor & Destructor Documentation

template<class ITERATOR , class INDICES >

Gaudi::details::index_iterator< ITERATOR, INDICES >::index_iterator ( const INDICES &  indices, ITERATOR  b, ITERATOR  e  )

inline

Definition at line 117 of file SmartRanges.h.

        : m_begin    ( b )
        , m_size     ( std::distance ( b , e ) )
        , m_indices  ( indices )
        , m_index    ( 0 )
      {}

template<class ITERATOR , class INDICES >

Gaudi::details::index_iterator< ITERATOR, INDICES >::index_iterator ( INDICES &&  indices, ITERATOR  b, ITERATOR  e  )

inline

Definition at line 124 of file SmartRanges.h.

        : m_begin    ( b )
        , m_size     ( std::distance ( b , e ) )
        , m_indices  ( indices )
        , m_index    ( 0 )
      {}

template<class ITERATOR , class INDICES >

Gaudi::details::index_iterator< ITERATOR, INDICES >::index_iterator ( )

inline

Definition at line 131 of file SmartRanges.h.

        : m_begin    (   )
        , m_size     ( 0 )
        , m_indices  (   )
        , m_index    ( 0 )
      {}

Member Function Documentation

template<class ITERATOR , class INDICES >

std::iterator_traits<ITERATOR>::reference Gaudi::details::index_iterator< ITERATOR, INDICES >::dereference ( ) const

inlineprivate

Definition at line 151 of file SmartRanges.h.

      {
        ITERATOR it = m_begin ;
        if ( m_index < m_indices.size() )
        { it = std::next ( m_begin , m_indices[ m_index ] ) ; }
        return *it;
      }

template<class ITERATOR , class INDICES >

bool Gaudi::details::index_iterator< ITERATOR, INDICES >::equal ( const index_iterator< ITERATOR, INDICES > &  other ) const

inlineprivate

Definition at line 159 of file SmartRanges.h.

      {
        if  ( m_index == other.m_index && m_indices.size() == other.m_indices.size() ) { return true ; }
        return  // special stuff to catch "end"
          (       m_index ==       m_indices.size() ) &&
          ( other.m_index == other.m_indices.size() ) ;
      }

template<class ITERATOR , class INDICES >

void Gaudi::details::index_iterator< ITERATOR, INDICES >::increment ( )

inlineprivate

Definition at line 141 of file SmartRanges.h.

      {
        if ( m_index < m_indices.size() )
        {
          // 1. advance
          ++m_index ;
          // 2. advance further, if out of range
          if ( m_size <= m_indices[m_index] ) { increment () ; }
        }
      }

Friends And Related Function Documentation

template<class ITERATOR , class INDICES >

friend class boost::iterator_core_access

friend

Definition at line 140 of file SmartRanges.h.

Member Data Documentation

template<class ITERATOR , class INDICES >

ITERATOR Gaudi::details::index_iterator< ITERATOR, INDICES >::m_begin

private

Definition at line 169 of file SmartRanges.h.

template<class ITERATOR , class INDICES >

std::size_t Gaudi::details::index_iterator< ITERATOR, INDICES >::m_index

private

Definition at line 172 of file SmartRanges.h.

template<class ITERATOR , class INDICES >

INDICES Gaudi::details::index_iterator< ITERATOR, INDICES >::m_indices

private

Definition at line 171 of file SmartRanges.h.

template<class ITERATOR , class INDICES >

std::size_t Gaudi::details::index_iterator< ITERATOR, INDICES >::m_size

private

Definition at line 170 of file SmartRanges.h.

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

• GaudiKernel/GaudiKernel/SmartRanges.h