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      std::future_errc
      Non-member functions
      Helper classes
       
      Defined in header <future> 
      template<>
struct is_error_code_enum<std::future_errc> : std::true_type;
      		(since C++11)

      Specifies that std::future_errc is an error code enum. This enables std::error_code automatic conversions.

      See also

      (C++11)
      		 identifies a class as an error_code enumeration
      (class template)