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concepts.cpp
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concepts.cpp
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// Copyright (c) 2022 Klemens D. Morgenstern
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/async/concepts.hpp>
struct foo_aw
{
bool await_ready();
bool await_suspend(std::coroutine_handle<void>);
void await_resume();
};
struct foo
{
foo_aw operator co_await() const;
};
struct my_promise ;
struct special_aw
{
bool await_ready();
bool await_suspend(std::coroutine_handle<my_promise>);
void await_resume();
};
static_assert(boost::async::awaitable_type<std::suspend_never>);
static_assert(boost::async::awaitable_type<foo_aw>);
static_assert(!boost::async::awaitable_type<foo>);
static_assert(boost::async::awaitable<std::suspend_never>);
static_assert(boost::async::awaitable<foo_aw>);
static_assert(boost::async::awaitable<foo>);
static_assert(boost::async::awaitable<std::suspend_never, int>);
static_assert(boost::async::awaitable<foo_aw, std::noop_coroutine_promise>);
static_assert(boost::async::awaitable<foo, std::noop_coroutine_promise>);
static_assert(!boost::async::awaitable<special_aw, std::noop_coroutine_promise>);
static_assert(!boost::async::awaitable<special_aw>);
static_assert(boost::async::awaitable<special_aw, my_promise>);