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std::vector::operator=

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< cpp‎ | container‎ | vector

 
 
 
std::vector
Las funciones miembro
Original:
Member functions
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vector::vector
vector::~vector
vector::operator=
vector::assign
vector::get_allocator
Elemento acceso
Original:
Element access
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vector::at
vector::operator[]
vector::front
vector::back
vector::data(C++11)
Los iteradores
Original:
Iterators
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vector::begin
vector::cbegin

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

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

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

(C++11)
Capacidad
Original:
Capacity
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vector::empty
vector::size
vector::max_size
vector::reserve
vector::capacity
vector::shrink_to_fit(C++11)
Modificadores
Original:
Modifiers
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vector::clear
vector::insert
vector::emplace(C++11)
vector::erase
vector::push_back
vector::emplace_back(C++11)
vector::pop_back
vector::resize
vector::swap
 
vector& operator=( const vector& other );
(1)
vector& operator=( vector&& other );
(2) (desde C++11)
Reemplaza el contenido del recipiente .
Original:
Replaces the contents of the container.
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1)
Copiar el operador de asignación. Reemplaza el contenido con una copia de los contenidos de other .
Original:
Copy assignment operator. Replaces the contents with a copy of the contents of other.
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2)
Mueva operador de asignación. Reemplaza el contenido con los de other utilizando la semántica de movimiento (es decir, los datos de other se mueve de other en el envase). other está en estado válido, pero sin especificar después .
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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Contenido

[editar] Parámetros

other -
otro recipiente para ser utilizado como fuente
Original:
another container to be used as source
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[editar] Valor de retorno

*this

[editar] Complejidad

1)
Lineal en el tamaño del recipiente .
Original:
Linear in the size of the container.
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2)
Constante .
Original:
Constant.
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[editar] Ejemplo

El código siguiente se utiliza para asignar un std::vector a otro:
Original:
The following code uses to assign one std::vector to another:
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#include <vector>
#include <iostream>
 
void display_sizes(const std::vector<int> &nums1,
                   const std::vector<int> &nums2,
                   const std::vector<int> &nums3)
{
    std::cout << "nums1: " << nums1.size() 
              << " nums2: " << nums2.size()
              << " nums3: " << nums3.size() << '\n';
}
 
int main()
{
    std::vector<int> nums1 {3, 1, 4, 6, 5, 9};
    std::vector<int> nums2; 
    std::vector<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

[editar] Ver también

construye el vector
Original:
constructs the vector
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(miembro público función) [edit]
asigna valores para el contenedor
Original:
assigns values to the container
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(miembro público función) [edit]