< cpp‎ | thread‎ | future errc
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Defined in header <future>
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.

[edit] See also

identifies a class as an error_code enumeration
(class template)