std::future_category - cppreference.com
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      std::future_category

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      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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      Exclusão mútua
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      Mutual exclusion
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      Gestão de bloqueio genérico
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      Generic lock management
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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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      Definido no cabeçalho <future>
      const std::error_category& future_category();
      		 (desde C++11)
      Obtém uma referência para o objeto estático erro categoria para os erros relacionados ao mercado de futuros e promessas. O objeto é necessária para substituir o error_category::name() função virtual para retornar um ponteiro para a "future" string. Ele é utilizado para identificar os códigos de erro fornecidos nas excepções de std::future_error tipo.
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      Obtains a reference to the static error category object for the errors related to futures and promises. The object is required to override the virtual function error_category::name() to return a pointer to the string "future". It is used to identify error codes provided in the exceptions of type std::future_error.
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      Parâmetros

      (Nenhum)
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      (none)
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      Valor de retorno

      uma referência ao objecto estático do tipo não especificado de tempo de execução, derivado de std::error_category.
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      a reference to the static object of unspecified runtime type, derived from std::error_category.
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      Exceções

      noexcept specification:  
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      noexcept
        (desde C++11)

      Exemplo

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      Motivo: sem exemplo

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