std::multimap::operator=

 

C++

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Reguläre Ausdrücke Bibliothek (C++11)

Atomare Operationen Bibliothek (C++11)

Thema Support-Bibliothek (C++11)

 

Container-Bibliothek

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

 

std::multimap

Member-Funktionen Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

multimap::multimap

multimap::~multimap

multimap::operator=

multimap::get_allocator

Iteratoren Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

multimap::begin multimap::cbegin (C++11)

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

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

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

Kapazität Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

multimap::erase

multimap::size

multimap::max_size

Modifiers Original: Modifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

multimap::clear

multimap::insert

multimap::emplace (C++11)

multimap::emplace_hint (C++11)

multimap::erase

multimap::swap

Lookup Original: Lookup The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

multimap::count

multimap::find

multimap::equal_range

multimap::lower_bound

multimap::upper_bound

Beobachter Original: Observers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

multimap::key_comp

multimap::value_comp

 

multimap& operator=( const multimap& other );	(1)
multimap& operator=( multimap&& other );	(2)	(seit C++11)

Ersetzt den Inhalt des Behälters .

Original:

Replaces the contents of the container.

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1)

Kopieren Zuweisungsoperator. Ersetzt den Inhalt mit einer Kopie des Inhalts other .

Original:

Copy assignment operator. Replaces the contents with a copy of the contents of other.

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2)

Bewegen Zuweisungsoperator. Ersetzt den Inhalt mit denen unter Verwendung other bewegen Semantik (dh die Daten in other aus other in diesen Behälter bewegt wird). other ist gültig, aber nicht näher Zustand danach .

Original:

Move assignment operator. Replaces the contents with those of other using move semantics (i.e. the data in other is moved from other into this container). other is in valid, but unspecified state afterwards.

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Parameter

other

-

ein weiterer Container, die als Quelle verwendet werden Original: another container to be used as source The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Rückgabewert

*this

Komplexität

1)

Linear in der Größe des Behälters .

Original:

Linear in the size of the container.

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2)

Constant .

Original:

Constant.

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Beispiel

Der folgende Code verwendet um ein std::multimap einem anderen zuweisen:

Original:

The following code uses to assign one std::multimap to another:

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#include <map>
#include <iostream>
 
void display_sizes(const std::multimap<int, int> &nums1,
                   const std::multimap<int, int> &nums2,
                   const std::multimap<int, int> &nums3)
{
    std::cout << "nums1: " << nums1.size() 
              << " nums2: " << nums2.size()
              << " nums3: " << nums3.size() << '\n';
}
 
int main()
{
    std::multimap<int, int> nums1 {{3, 1}, {4, 1}, {5, 9}};
    std::multimap<int, int> nums2;
    std::multimap<int, int> nums3;
 
    std::cout << "Initially:\n";
    display_sizes(nums1, nums2, nums3);
 
    // copy assignment copies data from nums1 to nums2
    nums2 = nums1;
 
    std::cout << "After assigment:\n"; 
    display_sizes(nums1, nums2, nums3);
 
    // move assignment moves data from nums1 to nums3,
    // modifying both nums1 and nums3
    nums3 = std::move(nums1);
 
    std::cout << "After move assigment:\n"; 
    display_sizes(nums1, nums2, nums3);
}

Output:

Initially:
nums1: 4 nums2: 0 nums3: 0
After assigment:
nums1: 4 nums2: 4 nums3: 0
After move assigment:
nums1: 0 nums2: 4 nums3: 4

Siehe auch

(constructor)	baut die multimap Original: constructs the multimap The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion)