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std::forward_list::operator=

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std::forward_list
Member-Funktionen
Original:
Member functions
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forward_list::forward_list
forward_list::~forward_list
forward_list::operator=
forward_list::assign
forward_list::get_allocator
Elementzugriff zerstört
Original:
Element access
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forward_list::front
Iteratoren
Original:
Iterators
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forward_list::before_begin
forward_list::cbefore_begin
forward_list::begin
forward_list::cbegin
forward_list::end
forward_list::cend
Kapazität
Original:
Capacity
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forward_list::empty
forward_list::max_size
Modifiers
Original:
Modifiers
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forward_list::clear
forward_list::insert_after
forward_list::emplace_after
forward_list::erase_after
forward_list::push_front
forward_list::emplace_front
forward_list::pop_front
forward_list::resize
forward_list::swap
Operations
Original:
Operations
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forward_list::merge
forward_list::splice_after
forward_list::remove
forward_list::remove_if
forward_list::reverse
forward_list::unique
forward_list::sort
 
forward_list& operator=( const forward_list& other );
(1) (seit C++11)
forward_list& operator=( forward_list&& 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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Inhaltsverzeichnis

[Bearbeiten] Parameter

other -
ein weiterer Container, die als Quelle verwendet werden
Original:
another container to be used as source
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[Bearbeiten] Rückgabewert

*this

[Bearbeiten] 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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[Bearbeiten] Beispiel

Der folgende Code verwendet um ein std::forward_list einem anderen zuweisen:
Original:
The following code uses to assign one std::forward_list to another:
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#include <iterator>
#include <forward_list>
#include <iostream>
 
void display_sizes(const std::forward_list<int> &nums1,
                   const std::forward_list<int> &nums2,
                   const std::forward_list<int> &nums3)
{
    std::cout << "nums1: " << std::distance(nums1.begin(), nums1.end()) 
              << " nums2: " << std::distance(nums2.begin(), nums2.end())
              << " nums3: " << std::distance(nums3.begin(), nums3.end()) << '\n';
}
 
int main()
{
    std::forward_list<int> nums1 {3, 1, 4, 6, 5, 9};
    std::forward_list<int> nums2; 
    std::forward_list<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

[Bearbeiten] Siehe auch

baut die forward_list
Original:
constructs the forward_list
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(öffentliche Elementfunktion) [edit]
weist Werte auf den Behälter
Original:
assigns values to the container
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(öffentliche Elementfunktion) [edit]