coroutine

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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
#define _LIBCPP_COROUTINE

/**
    coroutine synopsis

namespace std {
// [coroutine.traits]
template <class R, class... ArgTypes>
  struct coroutine_traits;
// [coroutine.handle]
template <class Promise = void>
  struct coroutine_handle;
// [coroutine.handle.compare]
constexpr bool operator==(coroutine_handle<> x, coroutine_handle<> y) noexcept;
constexpr strong_ordering operator<=>(coroutine_handle<> x, coroutine_handle<> y) noexcept;
// [coroutine.handle.hash]
template <class T> struct hash;
template <class P> struct hash<coroutine_handle<P>>;
// [coroutine.noop]
struct noop_coroutine_promise;
template<> struct coroutine_handle<noop_coroutine_promise>;
using noop_coroutine_handle = coroutine_handle<noop_coroutine_promise>;
noop_coroutine_handle noop_coroutine() noexcept;
// [coroutine.trivial.awaitables]
struct suspend_never;
struct suspend_always;
} // namespace std

 */

#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
#  include <__cxx03/coroutine>
#else
#  include <__config>

#  if _LIBCPP_STD_VER >= 20
#    include <__coroutine/coroutine_handle.h>
#    include <__coroutine/coroutine_traits.h>
#    include <__coroutine/noop_coroutine_handle.h>
#    include <__coroutine/trivial_awaitables.h>
#  endif // _LIBCPP_STD_VER >= 20

#  include <version>

// standard-mandated includes

// [coroutine.syn]
#  include <compare>

#  ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
#    pragma GCC system_header
#  endif

#  if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
#    include <cstddef>
#    include <iosfwd>
#    include <limits>
#    include <type_traits>
#  endif
#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)

#endif // _LIBCPP_COROUTINE