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std::map::emplace_hint

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< cpp‎ | container‎ | map

 
 
 
std::map
Member-Funktionen
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Member functions
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map::map
map::~map
map::operator=
map::get_allocator
Elementzugriff zerstört
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Element access
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map::at
map::operator[]
Iteratoren
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Iterators
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map::begin
map::cbegin

(C++11)
map::end
map::cend

(C++11)
map::rbegin
map::crbegin

(C++11)
map::rend
map::crend

(C++11)
Kapazität
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Capacity
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map::empty
map::size
map::max_size
Modifiers
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Modifiers
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map::clear
map::insert
map::emplace(C++11)
map::emplace_hint(C++11)
map::erase
map::swap
Lookup
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Lookup
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map::count
map::find
map::equal_range
map::lower_bound
map::upper_bound
Beobachter
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Observers
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map::key_comp
map::value_comp
 
template <class... Args>
iterator emplace_hint( const_iterator hint, Args&&... args );
(seit C++11)
Fügt ein neues Element in den Behälter mit hint als Anregung, wo das Element gehen sollte. Das Element in-place ist so aufgebaut, dh kein Kopieren oder Verschieben von Operationen durchgeführt werden. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....
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Inserts a new element to the container, using hint as a suggestion where the element should go. The element is constructed in-place, i.e. no copy or move operations are performed. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....
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No iterators or references are invalidated.

Inhaltsverzeichnis

[Bearbeiten] Parameter

hint -
Iterator, als Anregung, wo das neue Element eingefügt werden
Original:
iterator, used as a suggestion as to where to insert the new element
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args -
Argumente, die an den Konstruktor des Elements weiterzuleiten
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arguments to forward to the constructor of the element
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[Bearbeiten] Rückgabewert

Gibt einen Iterator auf das neu eingefügte Element .
Original:
Returns an iterator to the newly inserted element.
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If the insertion failed because the element already exists, returns an iterator to the already existing element with the equivalent key.

[Bearbeiten] Komplexität

Logarithmic in the size of the container in general, but amortized constant if the new element is inserted just before hint.

[Bearbeiten] Siehe auch

(C++11)
constructs element in-place
(öffentliche Elementfunktion) [edit]
Einsätze Elemente
Original:
inserts elements
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(öffentliche Elementfunktion) [edit]