std::future_error::code

C++

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Language support library

Concepts library (C++20)

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Numerics library

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Regular expressions library (C++11)

Atomic operations library (C++11)

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Technical Specifications

Thread support library

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hardware_destructive_interference_sizehardware_constructive_interference_size (C++17)(C++17)
this_thread namespace
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mutex (C++11) recursive_mutex (C++11) shared_mutex (C++17)	timed_mutex (C++11) recursive_timed_mutex (C++11) shared_timed_mutex (C++14)
Generic lock management
lock_guard (C++11) scoped_lock (C++17) unique_lock (C++11) shared_lock (C++14) defer_lock_ttry_to_lock_tadopt_lock_t (C++11)(C++11)(C++11)	lock (C++11) try_lock (C++11) defer_locktry_to_lockadopt_lock (C++11)(C++11)(C++11) once_flag (C++11) call_once (C++11)
Condition variables
condition_variable (C++11)
condition_variable_any (C++11)
notify_all_at_thread_exit (C++11)
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promise (C++11) future (C++11) shared_future (C++11) packaged_task (C++11) async (C++11)	launch (C++11) future_status (C++11) future_error (C++11) future_category (C++11) future_errc (C++11)

std::future_error

Member functions

future_error::future_error

future_error::code

future_error::what

const std::error_code& code() const noexcept;		(since C++11)

Returns the stored error code.

Parameters

(none)

Return value

The stored error code.

See also

what	returns the explanatory string specific to the error code (public member function)