The Gaudi Framework  v36r9p1 (5c15b2bb)
Gaudi::Range_< CONTAINER, ITERATOR > Class Template Reference

#include <GaudiUtils/Range.h>

Inheritance diagram for Gaudi::Range_< CONTAINER, ITERATOR >:
Collaboration diagram for Gaudi::Range_< CONTAINER, ITERATOR >:

Public Types

typedef std::pair< ITERATOR, ITERATOR > Base
 
typedef Gaudi::details::container< CONTAINER >::Container Container
 type for actual contained iterator More...
 
typedef ITERATOR iterator
 
typedef ITERATOR const_iterator
 
typedef iter_traits::value_type value_type
 
typedef iter_traits::reference reference
 
typedef iter_traits::reference const_reference
 
typedef std::reverse_iterator< iteratorreverse_iterator
 
typedef std::reverse_iterator< iteratorconst_reverse_iterator
 

Public Member Functions

 Range_ ()=default
 internal types More...
 
template<typename InputIterator >
 Range_ (InputIterator first, InputIterator last)
 Constructor. More...
 
 Range_ (const Base &base)
 constructor from the pair of iterators More...
 
 Range_ (const Container &cont)
 constructor from the container More...
 
 Range_ (iterator ibegin)
 
 ~Range_ ()=default
 destructor More...
 
bool empty () const
 empty sequence ? More...
 
size_t size () const
 size of the sequence (number of elements) More...
 
iterator begin () const
 access to begin of the sequence (const version ) More...
 
iterator end () const
 access to end of the sequence (const version) More...
 
iterator cbegin () const
 access to begin of the sequence (const version ) More...
 
iterator cend () const
 access to end of the sequence (const version) More...
 
reverse_iterator rbegin () const
 access to begin of the reversed sequence (const) More...
 
reverse_iterator rend () const
 access to begin of the reversed sequence (const) More...
 
const_reference front () const
 access for the first element (only for non-empty ranges!) More...
 
const_reference back () const
 access for the back element (only for non-empty ranges!) More...
 
Range_ slice (long index1, long index2) const
 get a "slice" of a range, in Python style More...
 
const_reference operator() (const size_t index) const
 non-checked access to the elements by index (valid only for non-empty sequences) More...
 
const_reference operator[] (const long index) const
 non-checked access to the elements by index (valid only for non-empty sequences) More...
 
const_reference at (const long index) const
 Checked access to the elements by index (valid for all sequences) More...
 
template<class C , class I >
bool operator< (const Range_< C, I > &right) const
 compare with another range More...
 
template<class ANOTHERCONTAINER >
bool operator< (const ANOTHERCONTAINER &right) const
 compare with another container More...
 
bool operator== (const Range_ &right) const
 equality with another range More...
 
template<class CNT , class IT >
bool operator== (const Range_< CNT, IT > &right) const
 equality with another range type More...
 
template<class ANOTHERCONTAINER >
bool operator== (const ANOTHERCONTAINER &right) const
 compare with another container More...
 
bool operator! () const
 empty sequence? More...
 
 operator bool () const
 non-empty sequence? More...
 
 operator const Base & () const
 conversion operator to the std::pair More...
 
const Basebase () const
 conversion operator to the std::pair More...
 

Private Types

typedef std::iterator_traits< iteratoriter_traits
 

Private Attributes

Base m_base
 the base itself More...
 

Detailed Description

template<class CONTAINER, class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
class Gaudi::Range_< CONTAINER, ITERATOR >

Useful class for representation of "sequence" of the objects through the range of valid iterators.

The range could be created over ALL container types which supports at least bidirectional iterators.

The minimum requirements from the container type:

  • support the concept of "CONTAINER::value_type"
  • support the concept of "CONTAINER::const_iterator"
  • support the concept of "CONTAINER::const_reference"
  • support the concept of "CONTAINER::const_reverse_iterator"
  • the iterator should be ok for "std::distance" and "std::advance"
  • support for "const_iterator CONTAINER::begin () const"
  • support for "const_iterator CONTAINER::end () const"
  • support for "const_reverse_iterator CONTAINER::rbegin () const"
  • support for "const_reverse_iterator CONTAINER::rend () const"
Author
Vanya Belyaev Ivan..nosp@m.Bely.nosp@m.aev@i.nosp@m.tep..nosp@m.ru
Date
2002-07-12

Definition at line 95 of file Range.h.

Member Typedef Documentation

◆ Base

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef std::pair<ITERATOR, ITERATOR> Gaudi::Range_< CONTAINER, ITERATOR >::Base

Definition at line 98 of file Range.h.

◆ const_iterator

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef ITERATOR Gaudi::Range_< CONTAINER, ITERATOR >::const_iterator

Definition at line 106 of file Range.h.

◆ const_reference

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef iter_traits::reference Gaudi::Range_< CONTAINER, ITERATOR >::const_reference

Definition at line 116 of file Range.h.

◆ const_reverse_iterator

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef std::reverse_iterator<iterator> Gaudi::Range_< CONTAINER, ITERATOR >::const_reverse_iterator

Definition at line 119 of file Range.h.

◆ Container

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef Gaudi::details::container<CONTAINER>::Container Gaudi::Range_< CONTAINER, ITERATOR >::Container

type for actual contained iterator

Definition at line 103 of file Range.h.

◆ iter_traits

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef std::iterator_traits<iterator> Gaudi::Range_< CONTAINER, ITERATOR >::iter_traits
private

Definition at line 110 of file Range.h.

◆ iterator

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef ITERATOR Gaudi::Range_< CONTAINER, ITERATOR >::iterator

Definition at line 105 of file Range.h.

◆ reference

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef iter_traits::reference Gaudi::Range_< CONTAINER, ITERATOR >::reference

Definition at line 115 of file Range.h.

◆ reverse_iterator

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef std::reverse_iterator<iterator> Gaudi::Range_< CONTAINER, ITERATOR >::reverse_iterator

Definition at line 118 of file Range.h.

◆ value_type

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
typedef iter_traits::value_type Gaudi::Range_< CONTAINER, ITERATOR >::value_type

Definition at line 114 of file Range.h.

Constructor & Destructor Documentation

◆ Range_() [1/5]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::Range_ ( )
default

internal types

default constructor

◆ Range_() [2/5]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
template<typename InputIterator >
Gaudi::Range_< CONTAINER, ITERATOR >::Range_ ( InputIterator  first,
InputIterator  last 
)
inline

Constructor.

Parameters
ibeginiterator to begin of the sequence
ienditerator to end of the sequence

Definition at line 131 of file Range.h.

131 : m_base( first, last ) {}

◆ Range_() [3/5]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::Range_ ( const Base base)
inline

constructor from the pair of iterators

Parameters
basepair of the iterators

Definition at line 135 of file Range.h.

135 : m_base( base ) {}

◆ Range_() [4/5]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::Range_ ( const Container cont)
inline

constructor from the container

Parameters
contreference to the container

Definition at line 139 of file Range.h.

139 : m_base( cont.begin(), cont.end() ) {}

◆ Range_() [5/5]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::Range_ ( iterator  ibegin)
inline

Definition at line 143 of file Range.h.

143 : m_base( ibegin, ibegin ) {}

◆ ~Range_()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::~Range_ ( )
default

destructor

Member Function Documentation

◆ at()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
const_reference Gaudi::Range_< CONTAINER, ITERATOR >::at ( const long  index) const
inline

Checked access to the elements by index (valid for all sequences)

Exceptions
GaudiExceptionfor out-of-range access
Parameters
indexthe index of the element to be accessed

Definition at line 201 of file Range.h.

201  {
202  if ( index < 0 || index >= (long)size() ) { Gaudi::details::rangeException( index, size() ); }
203  return ( *this )( index );
204  }

◆ back()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
const_reference Gaudi::Range_< CONTAINER, ITERATOR >::back ( ) const
inline

access for the back element (only for non-empty ranges!)

Definition at line 166 of file Range.h.

166 { return *std::prev( end() ); }

◆ base()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
const Base& Gaudi::Range_< CONTAINER, ITERATOR >::base ( ) const
inline

conversion operator to the std::pair

Definition at line 249 of file Range.h.

249 { return m_base; }

◆ begin()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
iterator Gaudi::Range_< CONTAINER, ITERATOR >::begin ( ) const
inline

access to begin of the sequence (const version )

Definition at line 152 of file Range.h.

152 { return m_base.first; }

◆ cbegin()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
iterator Gaudi::Range_< CONTAINER, ITERATOR >::cbegin ( ) const
inline

access to begin of the sequence (const version )

Definition at line 156 of file Range.h.

156 { return m_base.first; }

◆ cend()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
iterator Gaudi::Range_< CONTAINER, ITERATOR >::cend ( ) const
inline

access to end of the sequence (const version)

Definition at line 158 of file Range.h.

158 { return m_base.second; }

◆ empty()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
bool Gaudi::Range_< CONTAINER, ITERATOR >::empty ( ) const
inline

empty sequence ?

Definition at line 148 of file Range.h.

148 { return m_base.second == m_base.first; }

◆ end()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
iterator Gaudi::Range_< CONTAINER, ITERATOR >::end ( ) const
inline

access to end of the sequence (const version)

Definition at line 154 of file Range.h.

154 { return m_base.second; }

◆ front()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
const_reference Gaudi::Range_< CONTAINER, ITERATOR >::front ( ) const
inline

access for the first element (only for non-empty ranges!)

Definition at line 164 of file Range.h.

164 { return *begin(); }

◆ operator bool()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::operator bool ( ) const
inlineexplicit

non-empty sequence?

Definition at line 242 of file Range.h.

242 { return !empty(); }

◆ operator const Base &()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Gaudi::Range_< CONTAINER, ITERATOR >::operator const Base & ( ) const
inline

conversion operator to the std::pair

Definition at line 247 of file Range.h.

247 { return base(); }

◆ operator!()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
bool Gaudi::Range_< CONTAINER, ITERATOR >::operator! ( ) const
inline

empty sequence?

Definition at line 240 of file Range.h.

240 { return empty(); }

◆ operator()()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
const_reference Gaudi::Range_< CONTAINER, ITERATOR >::operator() ( const size_t  index) const
inline

non-checked access to the elements by index (valid only for non-empty sequences)

Parameters
indexthe index of the lement to be accessed

Definition at line 190 of file Range.h.

190 { return *std::next( begin(), index ); }

◆ operator<() [1/2]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
template<class ANOTHERCONTAINER >
bool Gaudi::Range_< CONTAINER, ITERATOR >::operator< ( const ANOTHERCONTAINER &  right) const
inline

compare with another container

Definition at line 215 of file Range.h.

215  {
216  return std::lexicographical_compare( begin(), end(), right.begin(), right.end() );
217  }

◆ operator<() [2/2]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
template<class C , class I >
bool Gaudi::Range_< CONTAINER, ITERATOR >::operator< ( const Range_< C, I > &  right) const
inline

compare with another range

Definition at line 210 of file Range.h.

210  {
211  return std::lexicographical_compare( begin(), end(), right.begin(), right.end() );
212  }

◆ operator==() [1/3]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
template<class ANOTHERCONTAINER >
bool Gaudi::Range_< CONTAINER, ITERATOR >::operator== ( const ANOTHERCONTAINER &  right) const
inline

compare with another container

Definition at line 233 of file Range.h.

233  {
234  return right.size() == size() && std::equal( begin(), end(), right.begin() );
235  }

◆ operator==() [2/3]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
bool Gaudi::Range_< CONTAINER, ITERATOR >::operator== ( const Range_< CONTAINER, ITERATOR > &  right) const
inline

equality with another range

Definition at line 222 of file Range.h.

222  {
223  if ( &right == this ) { return true; } // RETURN
224  return right.size() == size() && std::equal( begin(), end(), right.begin() );
225  }

◆ operator==() [3/3]

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
template<class CNT , class IT >
bool Gaudi::Range_< CONTAINER, ITERATOR >::operator== ( const Range_< CNT, IT > &  right) const
inline

equality with another range type

Definition at line 228 of file Range.h.

228  {
229  return right.size() == size() && std::equal( begin(), end(), right.begin() );
230  }

◆ operator[]()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
const_reference Gaudi::Range_< CONTAINER, ITERATOR >::operator[] ( const long  index) const
inline

non-checked access to the elements by index (valid only for non-empty sequences)

Parameters
indexthe index of the lement to be accessed

Definition at line 195 of file Range.h.

195 { return ( *this )( index ); }

◆ rbegin()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
reverse_iterator Gaudi::Range_< CONTAINER, ITERATOR >::rbegin ( ) const
inline

access to begin of the reversed sequence (const)

Definition at line 160 of file Range.h.

160 { return reverse_iterator( end() ); }

◆ rend()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
reverse_iterator Gaudi::Range_< CONTAINER, ITERATOR >::rend ( ) const
inline

access to begin of the reversed sequence (const)

Definition at line 162 of file Range.h.

162 { return reverse_iterator( begin() ); }

◆ size()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
size_t Gaudi::Range_< CONTAINER, ITERATOR >::size ( ) const
inline

size of the sequence (number of elements)

Definition at line 150 of file Range.h.

150 { return std::distance( m_base.first, m_base.second ); }

◆ slice()

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Range_ Gaudi::Range_< CONTAINER, ITERATOR >::slice ( long  index1,
long  index2 
) const
inline

get a "slice" of a range, in Python style

Definition at line 169 of file Range.h.

169  {
170  // trivial cases
171  if ( empty() || index1 == index2 ) { return Range_(); } // RETURN
172  // adjust indices
173  if ( index1 < 0 ) { index1 += size(); }
174  if ( index2 < 0 ) { index2 += size(); }
175  // check
176  if ( index1 < 0 ) { return Range_(); } // RETURN
177  if ( index2 < index1 ) { return Range_(); } // RETURN
178 
179  if ( index1 > (long)size() ) { return Range_(); } // RETURN
180  if ( index2 > (long)size() ) { index2 = size(); }
181 
182  // construct the slice
183  return Range_( std::next( begin(), index1 ), std::next( begin(), index2 ) ); // RETURN
184  }

Member Data Documentation

◆ m_base

template<class CONTAINER , class ITERATOR = typename Gaudi::details::container<CONTAINER>::Iterator>
Base Gaudi::Range_< CONTAINER, ITERATOR >::m_base
private

the base itself

Definition at line 254 of file Range.h.


The documentation for this class was generated from the following file:
std::equal
T equal(T... args)
Gaudi::Range_::empty
bool empty() const
empty sequence ?
Definition: Range.h:148
Gaudi::Range_::base
const Base & base() const
conversion operator to the std::pair
Definition: Range.h:249
Gaudi::details::rangeException
GAUDI_API void rangeException(const long index, const size_t size)
Helpful function to throw an "out-of-range exception" for class Range_.
Definition: Range.cpp:40
std::distance
T distance(T... args)
Gaudi::Range_::begin
iterator begin() const
access to begin of the sequence (const version )
Definition: Range.h:152
Gaudi::Range_::size
size_t size() const
size of the sequence (number of elements)
Definition: Range.h:150
std::lexicographical_compare
T lexicographical_compare(T... args)
Gaudi::Range_::m_base
Base m_base
the base itself
Definition: Range.h:254
Gaudi::Range_::Range_
Range_()=default
internal types
Gaudi::Range_::reverse_iterator
std::reverse_iterator< iterator > reverse_iterator
Definition: Range.h:118
std::right
T right(T... args)
std::prev
T prev(T... args)
Gaudi::Range_::end
iterator end() const
access to end of the sequence (const version)
Definition: Range.h:154
std::next
T next(T... args)