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std::unordered_map::insert

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std::unordered_map
Member-Funktionen
Original:
Member functions
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unordered_map::unordered_map
unordered_map::~unordered_map
unordered_map::operator=
unordered_map::get_allocator
Iteratoren
Original:
Iterators
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unordered_map::begin
unordered_map::cbegin
unordered_map::end
unordered_map::cend
Kapazität
Original:
Capacity
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unordered_map::erase
unordered_map::size
unordered_map::max_size
Modifiers
Original:
Modifiers
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unordered_map::clear
unordered_map::insert
unordered_map::emplace
unordered_map::emplace_hint
unordered_map::erase
unordered_map::swap
Lookup
Original:
Lookup
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unordered_map::count
unordered_map::find
unordered_map::equal_range
Eimer Schnittstelle
Original:
Bucket interface
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unordered_map::begin2
unordered_map::end2
unordered_map::bucket_count
unordered_map::max_bucket_count
unordered_map::bucket_size
unordered_map::bucket
Hash Politik
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Hash policy
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unordered_map::load_factor
unordered_map::max_load_factor
unordered_map::rehash
unordered_map::reserve
Beobachter
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Observers
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unordered_map::hash_function
unordered_map::key_eq
 
std::pair<iterator,bool> insert( const value_type& value );
(1) (seit C++11)
template <class P>
std::pair<iterator,bool> insert( P&& value );
(2) (seit C++11)
iterator insert( const_iterator hint, const value_type& value );
(3) (seit C++11)
template <class P>
iterator insert( const_iterator hint, P&& value );
(4) (seit C++11)
template< class InputIt >
void insert( InputIt first, InputIt last );
(5) (seit C++11)
void insert( std::initializer_list<value_type> ilist );
(6) (seit C++11)

Inserts element(s) to the container, if the container doesn't already contain an element with equivalent key.

1-2)
Einsätze value.
Original:
inserts value.
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3-4) inserts value, using hint as a non-binding suggestion to where the search should start.

5)
Einsätze Elemente aus Bereich [first, last) .
Original:
inserts elements from range [first, last).
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6)
Einsätze Elemente aus Initialisierungsliste ilist .
Original:
inserts elements from initializer list ilist.
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If rehashing occurs due to the insertion, all iterators are invalidated. Otherwise iterators are not affected. References are not invalidated. Rehashing occurs only if the new number of elements is higher than max_load_factor()*bucket_count().

Inhaltsverzeichnis

[Bearbeiten] Parameter

hint -
Iterator, als Anregung, wo den Inhalt einfügen verwendet
Original:
iterator, used as a suggestion as to where to insert the content
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value -
Wert des Elements einfügen
Original:
element value to insert
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first, last -
Bereich von Elementen einzufügen
Original:
range of elements to insert
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ilist -
Initialisierungsliste um die Werte aus einzufügen
Original:
initializer list to insert the values from
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Type requirements
-
InputIt must meet the requirements of InputIterator.

[Bearbeiten] Rückgabewert

1-2) returns a pair consisting of an iterator to the inserted element (or to the element that prevented the insertion) and a bool denoting whether the insertion took place.

3-4) returns an iterator to the inserted element, or to the element that prevented the insertion.

5-6)
keine .
Original:
none.
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[Bearbeiten] Komplexität

1-4) Average case: O(1), worst case O(size())

5-6) Average case: O(N), where N is the number of elements to insert. Worse case: O(N*size()+N)

[Bearbeiten] Siehe auch

constructs element in-place
(öffentliche Elementfunktion) [edit]
baut Elemente in-place mit einem Hinweis
Original:
constructs elements in-place using a hint
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(öffentliche Elementfunktion) [edit]