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      std::map::at

      De cppreference.com

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      <metanoindex/>

       
      C++
       
      Recipientes biblioteca
       
      std::map
      Funções de membro
      Original:
      Member functions
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      map::map
      map::~map
      map::operator=
      map::get_allocator
      acesso. Elemento
      Original:
      Element access
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      map::at
      map::operator[]
      Iteradores
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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)
      Capacidade
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      Capacity
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      map::empty
      map::size
      map::max_size
      Modificadores
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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
      Pesquisa
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      Lookup
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      map::count
      map::find
      map::equal_range
      map::lower_bound
      map::upper_bound
      Observadores
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      Observers
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      map::key_comp
      map::value_comp
       
      <tbody> </tbody>
      T& at( const Key& key );
      		 (1) (desde C++11)
      const T & at( const Key& key ) const;
      		 (2) (desde C++11)
      Retorna uma referência para o valor mapeado do elemento com chave equivalente a key. Se tal elemento não existe, uma exceção do tipo std::out_of_range é jogado.
      Original:
      Returns a reference to the mapped value of the element with key equivalent to key. If no such element exists, an exception of type std::out_of_range is thrown.
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      Parâmetros

      key -
      a chave do elemento de encontrar
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      the key of the element to find
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      Valor de retorno

      Referência ao valor mapeado do elemento solicitado
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      Reference to the mapped value of the requested element
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      Exceções

      std::out_of_range se o recipiente não tem um elemento com a key especificado
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      std::out_of_range if the container does not have an element with the specified key
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      Complexidade

      Logarithmic in the size of the container.

      Veja também
      acessar o elemento especificado
      Original:
      access specified element
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      (função pública membro) [edit]