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      std::set::operator=

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      <metanoindex/>

       
      C++
       
      Recipientes biblioteca
       
      std::set
      Funções de membro
      Original:
      Member functions
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      set::set
      set::~set
      set::operator=
      set::get_allocator
      Iteradores
      Original:
      Iterators
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      set::begin
      set::cbegin
      (C++11)
      set::end
      set::cend
      (C++11)
      set::rbegin
      set::crbegin
      (C++11)
      set::rend
      set::crend
      (C++11)
      Capacidade
      Original:
      Capacity
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      set::empty
      set::size
      set::max_size
      Modificadores
      Original:
      Modifiers
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      set::clear
      set::insert
      set::emplace(C++11)
      set::emplace_hint(C++11)
      set::erase
      set::swap
      Pesquisa
      Original:
      Lookup
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      set::count
      set::find
      set::equal_range
      set::lower_bound
      set::upper_bound
      Observadores
      Original:
      Observers
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      set::key_comp
      set::value_comp
       
      <tbody> </tbody>
      set& operator=( const set& other );
      		 (1)
      set& operator=( set&& other );
      		 (2) (desde C++11)
      Substitui o conteúdo do recipiente.
      Original:
      Replaces the contents of the container.
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      1)

      Copiar operador de atribuição. Substitui o conteúdo com uma cópia do conteúdo do other.
      Original:
      Copy assignment operator. Replaces the contents with a copy of the contents of other.
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      2)

      Mova operador de atribuição. Substitui o conteúdo com as de other usando semântica de movimento (ou seja, os dados em other é movido de other neste recipiente). other está em estado válido, mas não especificada depois.
      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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      Parâmetros

      other -
      um outro recipiente, para ser usado como fonte
      Original:
      another container to be used as source
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      Valor de retorno

      *this

      Complexidade

      1)

      Linear no tamanho do recipiente.
      Original:
      Linear in the size of the container.
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      2)

      Constante.
      Original:
      Constant.
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      Exemplo

      O código a seguir usa para atribuir um std::set para outro:
      Original:
      The following code uses to assign one std::set to another:
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      #include <set>
#include <iostream>

void display_sizes(const std::set<int> &nums1,
                   const std::set<int> &nums2,
                   const std::set<int> &nums3)
{
    std::cout << "nums1: " << nums1.size() 
              << " nums2: " << nums2.size()
              << " nums3: " << nums3.size() << '\n';
}

int main()
{
    std::set<int> nums1 {3, 1, 4, 6, 5, 9};
    std::set<int> nums2; 
    std::set<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);
}

      Saída: 

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

      Veja também
      constrói o set
      Original:
      constructs the set
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      (função pública membro) [edit]