Boost.Iterator Library

Classes
struct	zypp::GetPairFirst< _Pair >
	Functor taking a std::pair returning std::pair.first. More...
struct	zypp::GetPairSecond< _Pair >
	Functor taking a std::pair returning std::pair.second . More...
struct	zypp::MapKVIteratorTraits< _Map >
	Traits for std::map key and value iterators. More...
class	filter_iterator
	An iterator over the subset of elements of some sequence which satisfy a given predicate. More...
class	transform_iterator
	An iterator over elements which are the result of applying some functional transformation to the elements of an underlying sequence. More...
class	function_output_iterator
	An output iterator wrapping a unary function object; each time an element is written into the dereferenced iterator, it is passed as a parameter to the function object. More...
Functions
template<class _Filter , class _Container >
filter_iterator< _Filter, typename _Container::const_iterator >	zypp::make_filter_begin (_Filter f, const _Container &c)
	Convenience to create filter_iterator from container::begin().
template<class _Filter , class _Container >
filter_iterator< _Filter, typename _Container::const_iterator >	zypp::make_filter_begin (const _Container &c)
	Convenience to create filter_iterator from container::begin().
template<class _Filter , class _Container >
filter_iterator< _Filter, typename _Container::const_iterator >	zypp::make_filter_end (_Filter f, const _Container &c)
	Convenience to create filter_iterator from container::end().
template<class _Filter , class _Container >
filter_iterator< _Filter, typename _Container::const_iterator >	zypp::make_filter_end (const _Container &c)
	Convenience to create filter_iterator from container::end().
template<class _Map >
MapKVIteratorTraits< _Map > ::Key_const_iterator	zypp::make_map_key_begin (const _Map &map_r)
	Convenience to create the key iterator from container::begin()
template<class _Map >
MapKVIteratorTraits< _Map > ::Key_const_iterator	zypp::make_map_key_end (const _Map &map_r)
	Convenience to create the key iterator from container::end()
template<class _Map >
MapKVIteratorTraits< _Map > ::Value_const_iterator	zypp::make_map_value_begin (const _Map &map_r)
	Convenience to create the value iterator from container::begin()
template<class _Map >
MapKVIteratorTraits< _Map > ::Value_const_iterator	zypp::make_map_value_end (const _Map &map_r)
	Convenience to create the value iterator from container::end()
template<class _Map >
MapKVIteratorTraits< _Map > ::Key_const_iterator	zypp::make_map_key_lower_bound (const _Map &map_r, const typename _Map::key_type &key_r)
	Convenience to create the key iterator from container::lower_bound()
template<class _Map >
MapKVIteratorTraits< _Map > ::Key_const_iterator	zypp::make_map_key_upper_bound (const _Map &map_r, const typename _Map::key_type &key_r)
	Convenience to create the key iterator from container::upper_bound()
template<class _Map >
MapKVIteratorTraits< _Map > ::Value_const_iterator	zypp::make_map_value_lower_bound (const _Map &map_r, const typename _Map::key_type &key_r)
	Convenience to create the value iterator from container::lower_bound()
template<class _Map >
MapKVIteratorTraits< _Map > ::Value_const_iterator	zypp::make_map_value_upper_bound (const _Map &map_r, const typename _Map::key_type &key_r)
	Convenience to create the value iterator from container::upper_bound()

---

Detailed Description

See also:

http://www.boost.org/libs/iterator/doc/index.html

• counting_iterator: an iterator over a sequence of consecutive values. Implements a "lazy sequence"
• filter_iterator: an iterator over the subset of elements of some sequence which satisfy a given predicate
• function_output_iterator: an output iterator wrapping a unary function object; each time an element is written into the dereferenced iterator, it is passed as a parameter to the function object.
• indirect_iterator: an iterator over the objects pointed-to by the elements of some sequence.
• permutation_iterator: an iterator over the elements of some random-access sequence, rearranged according to some sequence of integer indices.
• reverse_iterator: an iterator which traverses the elements of some bidirectional sequence in reverse. Corrects many of the shortcomings of C++98's std::reverse_iterator.
• shared_container_iterator: an iterator over elements of a container whose lifetime is maintained by a shared_ptr stored in the iterator.
• transform_iterator: an iterator over elements which are the result of applying some functional transformation to the elements of an underlying sequence. This component also replaces the old projection_iterator_adaptor.
• zip_iterator: an iterator over tuples of the elements at corresponding positions of heterogeneous underlying iterators.

There are in fact more interesting iterator concepts available than the ones listed above. Have a look at them.

Some of the iterator types are already dragged into namespace zypp. Feel free to add what's missing.

Todo:

Separate them into individual zypp header files.

---

Function Documentation

template<class _Filter , class _Container >

filter_iterator<_Filter, typename _Container::const_iterator> zypp::make_filter_begin	(	_Filter	f,
		const _Container &	c
	)

Convenience to create filter_iterator from container::begin().

Definition at line 99 of file Iterator.h.

template<class _Filter , class _Container >

filter_iterator<_Filter, typename _Container::const_iterator> zypp::make_filter_begin

(

const _Container &

c

)

Convenience to create filter_iterator from container::begin().

Definition at line 107 of file Iterator.h.

template<class _Filter , class _Container >

filter_iterator<_Filter, typename _Container::const_iterator> zypp::make_filter_end	(	_Filter	f,
		const _Container &	c
	)

Convenience to create filter_iterator from container::end().

Definition at line 115 of file Iterator.h.

template<class _Filter , class _Container >

filter_iterator<_Filter, typename _Container::const_iterator> zypp::make_filter_end

(

const _Container &

c

)

Convenience to create filter_iterator from container::end().

Definition at line 123 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Key_const_iterator zypp::make_map_key_begin

(

const _Map &

map_r

)

[inline]

Convenience to create the key iterator from container::begin()

Definition at line 226 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Key_const_iterator zypp::make_map_key_end

(

const _Map &

map_r

)

[inline]

Convenience to create the key iterator from container::end()

Definition at line 231 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Value_const_iterator zypp::make_map_value_begin

(

const _Map &

map_r

)

[inline]

Convenience to create the value iterator from container::begin()

Definition at line 236 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Value_const_iterator zypp::make_map_value_end

(

const _Map &

map_r

)

[inline]

Convenience to create the value iterator from container::end()

Definition at line 241 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Key_const_iterator zypp::make_map_key_lower_bound	(	const _Map &	map_r,
		const typename _Map::key_type &	key_r
	)		[inline]

Convenience to create the key iterator from container::lower_bound()

Definition at line 246 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Key_const_iterator zypp::make_map_key_upper_bound	(	const _Map &	map_r,
		const typename _Map::key_type &	key_r
	)		[inline]

Convenience to create the key iterator from container::upper_bound()

Definition at line 251 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Value_const_iterator zypp::make_map_value_lower_bound	(	const _Map &	map_r,
		const typename _Map::key_type &	key_r
	)		[inline]

Convenience to create the value iterator from container::lower_bound()

Definition at line 256 of file Iterator.h.

template<class _Map >

MapKVIteratorTraits<_Map>::Value_const_iterator zypp::make_map_value_upper_bound	(	const _Map &	map_r,
		const typename _Map::key_type &	key_r
	)		[inline]

Convenience to create the value iterator from container::upper_bound()

Definition at line 261 of file Iterator.h.