std::shared_future::get - cppreference.com
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      std::shared_future::get

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      C++
       
      Biblioteca de suporte a discussão
      Threads
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      Threads
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      (C++11)
      this_thread namespace
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      this_thread namespace
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      (C++11)
      (C++11)
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      (C++11)
      Exclusão mútua
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      Mutual exclusion
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      (C++11)
      (C++11)
      Gestão de bloqueio genérico
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      Generic lock management
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      (C++11)(C++11)(C++11)
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      Variáveis ​​de condição
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      Condition variables
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      Futuros
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      Futures
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      std::shared_future
      Funções de membro
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      Member functions
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      shared_future::shared_future
      shared_future::~shared_future
      shared_future::operator=
      Obtendo o resultado
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      Getting the result
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      shared_future::get
      Estado
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      State
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      shared_future::valid
      shared_future::wait
      shared_future::wait_for
      shared_future::wait_until
       
      <tbody> </tbody>
      T get() const;
      		 (1) (único membro da modelo shared_future genérico)
      (desde C++11)
      T& get() const;
      		 (2) (único membro da shared_future<T&> especialização modelo)
      (desde C++11)
      void get() const;
      		 (3) (único membro da shared_future<void> especialização modelo)
      (desde C++11)
      O método get espera até que o shared_future tem um resultado válido e (dependendo do modelo é usado) recupera. Ele efetivamente chama wait(), a fim de aguardar o resultado.
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      The get method waits until the shared_future has a valid result and (depending on which template is used) retrieves it. It effectively calls wait() in order to wait for the result.
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      O modelo genérico e duas especializações modelo, contêm uma única versão de get. As três versões de get diferem apenas no tipo de retorno.
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      The generic template and two template specializations each contain a single version of get. The three versions of get differ only in the return type.
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      valid() == false após uma chamada para este método.
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      valid() == false after a call to this method.
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      Parâmetros

      (Nenhum)
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      (none)
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      Valor de retorno

      1)

      O valor armazenado no estado compartilhado. Desde que preencha os requisitos da MoveAssignable, o valor é movido, caso contrário, ele é copiado.
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      The value stored in the shared state. If it satisfies the requirements of MoveAssignable, the value is moved, otherwise it is copied.
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      2)

      Referência ao valor no estado compartilhado.
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      Reference to the value in the shared state.
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      3)

      Nada.
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      Nothing.
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      Exceções

      Se uma exceção foi armazenado no estado compartilhado referenciado pelo futuro (por exemplo, através de uma chamada para std::promise::set_exception) depois que exceção será lançada.
      Original:
      If an exception was stored in the shared state referenced by the future (e.g. via a call to std::promise::set_exception) then that exception will be thrown.
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      Exemplo

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