Add PR check to suggest alternatives to using undef (#118506)
[llvm-project.git] / libcxx / include / __cxx03 / coroutine
blob6f2af35cc4d7658567afb349aba33a4a674a2c3d
1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP___CXX03_COROUTINE
11 #define _LIBCPP___CXX03_COROUTINE
13 /**
14     coroutine synopsis
16 namespace std {
17 // [coroutine.traits]
18 template <class R, class... ArgTypes>
19   struct coroutine_traits;
20 // [coroutine.handle]
21 template <class Promise = void>
22   struct coroutine_handle;
23 // [coroutine.handle.compare]
24 constexpr bool operator==(coroutine_handle<> x, coroutine_handle<> y) noexcept;
25 constexpr strong_ordering operator<=>(coroutine_handle<> x, coroutine_handle<> y) noexcept;
26 // [coroutine.handle.hash]
27 template <class T> struct hash;
28 template <class P> struct hash<coroutine_handle<P>>;
29 // [coroutine.noop]
30 struct noop_coroutine_promise;
31 template<> struct coroutine_handle<noop_coroutine_promise>;
32 using noop_coroutine_handle = coroutine_handle<noop_coroutine_promise>;
33 noop_coroutine_handle noop_coroutine() noexcept;
34 // [coroutine.trivial.awaitables]
35 struct suspend_never;
36 struct suspend_always;
37 } // namespace std
39  */
41 #include <__cxx03/__config>
43 #if _LIBCPP_STD_VER >= 20
44 #  include <__cxx03/__coroutine/coroutine_handle.h>
45 #  include <__cxx03/__coroutine/coroutine_traits.h>
46 #  include <__cxx03/__coroutine/noop_coroutine_handle.h>
47 #  include <__cxx03/__coroutine/trivial_awaitables.h>
48 #endif // _LIBCPP_STD_VER >= 20
50 #include <__cxx03/version>
52 // standard-mandated includes
54 // [coroutine.syn]
55 #include <__cxx03/compare>
57 #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
58 #  pragma GCC system_header
59 #endif
61 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
62 #  include <__cxx03/iosfwd>
63 #  include <__cxx03/limits>
64 #  include <__cxx03/type_traits>
65 #endif
67 #endif // _LIBCPP___CXX03_COROUTINE