[/
    Copyright (c) 2008-2009 Joachim Faulhaber

    Distributed under the Boost Software License, Version 1.0.
    (See accompanying file LICENSE_1_0.txt or copy at
    http://www.boost.org/LICENSE_1_0.txt)
]


[/ //= Iterator related ===================================================================]
[section Iterator related]


[table
[[['*Synopsis Complexities*]]                [__ch_itv_sets__][__ch_itv_maps__][__ch_ele_sets__][__ch_ele_maps__]   ]
[[`J T::begin()`]                                  [__O1__]    [__O1__]   [__O1__]    [__O1__]   ]
[[`J T::end()`]                                    [__O1__]    [__O1__]   [__O1__]    [__O1__]   ]
[[`J T::rbegin()`]                                 [__O1__]    [__O1__]   [__O1__]    [__O1__]   ]
[[`J T::rend()`]                                   [__O1__]    [__O1__]   [__O1__]    [__O1__]   ]
[[`J T::lower_bound(const key_type&)`]            [__Olgn__]  [__Olgn__] [__Olgn__]  [__Olgn__] ]
[[`J T::upper_bound(const key_type&)`]            [__Olgn__]  [__Olgn__] [__Olgn__]  [__Olgn__] ]
[[`pair<J,J> T::equal_range(const key_type&)`]    [__Olgn__]  [__Olgn__] [__Olgn__]  [__Olgn__] ]
]

[table
[[['*Iterator related*]]                                                                                    []     ]
[[``      iterator T::begin()
const_iterator T::begin()const``]                          [Returns an iterator to the first value of the container.]                        ]
[[``      iterator T::end()
const_iterator T::end()const``]                            [Returns an iterator to a position `end()` after the last value of the container.]]
[[``      reverse_iterator T::rbegin()
const_reverse_iterator T::rbegin()const``]                 [Returns a reverse iterator to the last value of the container.]                  ]
[[``      reverse_iterator T::rend()
const_reverse_iterator T::rend()const``]                   [Returns a reverse iterator to a position `rend()` before the first value of the container.]]
[[``      iterator T::lower_bound(const key_type& k)
const_iterator T::lower_bound(const key_type& key)const``][Returns an iterator that points to the first element `first`, that does not compare less than `key_type key`.
                                                            `first` can be equal or greater than `key`, or it may overlap `key` for interval containers.]]
[[``      iterator T::upper_bound(const key_type&)
const_iterator T::upper_bound(const key_type&)const``]    [Returns an iterator that points to the first element `past`, that compares greater than `key_type key`.]]
[[``
            pair<iterator,iterator> T::equal_range(const key_type& key)
pair<const_iterator,const_iterator> T::equal_range(const key_type& key)const
``
]                                                                                                           
    [Returns a range `[first, past)` of iterators to all elements of the container
     that compare neither less than nor greater than `key_type key`.
     For element containers __icl_set__ and __icl_map__, `equal_range` 
     contains at most one iterator pointing the element equal to `key`,
     if it exists.
     
     For interval containers `equal_range` contains iterators to all
     intervals that overlap interval `key`.
    ]]
]

[/
Functions `begin`, `end`, `rbegin`, `rend` need ['*constant time*].
Complexity of `lower_bound`, `upper_bound` and `equal_range` are 
['*logarithmic*] in the `iterative_size` of the container. 
]

['*See also . . .*]
[table
[]
[[[link boost_icl.function_reference.element_iteration ['*Element iteration*]] ]]
]
['*Back to section . . .*]
[table
[]
[[[link function_synopsis_table ['*Function Synopsis*]]    ]]
[[[link boost_icl.interface ['*Interface*]]                ]]
]

[endsect][/ Iterator related]