futures::error

Futures / Error / error

^{Defined in header <futures/error.hpp>}

class error;

Class for errors in the futures library.

Description

All errors in the futures library derive from this class.

The type carries a future_errc

Inherits from std::system_error

Inherited by: error is a base class for broken_promise, future_already_retrieved, future_deferred, future_uninitialized, no_state, packaged_task_uninitialized, promise_already_satisfied, and promise_uninitialized

Public Functions

Member Functions	Description
(constructor)	Constructor. (function template)
(destructor) override = default	Destructor. (function)

Public Functions

function error

^{Defined in header <futures/error.hpp>}

(1)

template <class ErrorCodeEnum>
requires /* see requirements below */
error(ErrorCodeEnum ec);

(2)

template <class ErrorCodeEnum>
requires /* see requirements below */
error(ErrorCodeEnum ec, char const * what_arg);

(3)

template <class ErrorCodeEnum>
requires /* see requirements below */
error(ErrorCodeEnum ec, std::string const & what_arg);

Constructor.

Exception Safety

Basic exception guarantee.

function ~error

^{Defined in header <futures/error.hpp>}

~error() override = default;

Destructor.

Exception Safety

Basic exception guarantee.

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_{Updated on 2023-01-04}