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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef __LIBCPP___COROUTINE_TRIVIAL_AWAITABLES_H
#define __LIBCPP___COROUTINE_TRIVIAL_AWAITABLES_H
#include <__config>
#include <__coroutine/coroutine_handle.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#if _LIBCPP_STD_VER >= 20
_LIBCPP_BEGIN_NAMESPACE_STD
// [coroutine.trivial.awaitables]
struct suspend_never {
_LIBCPP_HIDE_FROM_ABI constexpr bool await_ready() const noexcept { return true; }
_LIBCPP_HIDE_FROM_ABI constexpr void await_suspend(coroutine_handle<>) const noexcept {}
_LIBCPP_HIDE_FROM_ABI constexpr void await_resume() const noexcept {}
};
struct suspend_always {
_LIBCPP_HIDE_FROM_ABI constexpr bool await_ready() const noexcept { return false; }
_LIBCPP_HIDE_FROM_ABI constexpr void await_suspend(coroutine_handle<>) const noexcept {}
_LIBCPP_HIDE_FROM_ABI constexpr void await_resume() const noexcept {}
};
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER >= 20
#endif // __LIBCPP___COROUTINE_TRIVIAL_AWAITABLES_H
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