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      std::shared_future::valid

      Da cppreference.com

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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)
      (C++11)
      (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)
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      (C++11)(C++11)(C++11)
      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
       
      bool valid()const;
      		(desde C++11)
      Verifica se o futuro se refere a um estado compartilhado com uma promessa. Este é o único caso em futuros retornados por std::promise::get_future(), std::packaged_task::get_future()std::async() ou até que a primeira vez que é chamado get().
      Original:
      Checks if the future refers to a state shared with a promise. This is the case only for futures returned by std::promise::get_future(), std::packaged_task::get_future() or std::async() until the first time get() is called.
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      Índice

      [editar]Parâmetros

      (Nenhum)
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      (none)
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      [editar]Valor de retorno

      true se * isto se refere a um estado compartilhado, caso contrário false.
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      true if *this refers to a shared state, otherwise false.
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      [editar]Exceções

      noexcept specification:  
      noexcept
        (desde C++11)

      [editar]Exemplo

      Esta seção está incompleta
      Motivo: sem exemplo

      [editar]Veja também

      aguarda o resultado de se tornarem disponíveis
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      waits for the result to become available
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      (função pública membro)[edit]
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