1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// -*- 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11
#include <experimental/coroutine>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
namespace coro = std::experimental;
using SuspendT = std::experimental::coroutines_v1::suspend_always;
TEST_SAFE_STATIC SuspendT safe_sa;
constexpr SuspendT constexpr_sa;
constexpr bool check_suspend_constexpr() {
SuspendT s{};
const SuspendT scopy(s); ((void)scopy);
SuspendT smove(std::move(s)); ((void)smove);
s = scopy;
s = std::move(smove);
return true;
}
int main()
{
using H = coro::coroutine_handle<>;
using S = SuspendT;
H h{};
S s{};
S const& cs = s;
{
LIBCPP_STATIC_ASSERT(noexcept(s.await_ready()), "");
static_assert(std::is_same<decltype(s.await_ready()), bool>::value, "");
assert(s.await_ready() == false);
assert(cs.await_ready() == false);
}
{
LIBCPP_STATIC_ASSERT(noexcept(s.await_suspend(h)), "");
static_assert(std::is_same<decltype(s.await_suspend(h)), void>::value, "");
s.await_suspend(h);
cs.await_suspend(h);
}
{
LIBCPP_STATIC_ASSERT(noexcept(s.await_resume()), "");
static_assert(std::is_same<decltype(s.await_resume()), void>::value, "");
s.await_resume();
cs.await_resume();
}
{
static_assert(std::is_nothrow_default_constructible<S>::value, "");
static_assert(std::is_nothrow_copy_constructible<S>::value, "");
static_assert(std::is_nothrow_move_constructible<S>::value, "");
static_assert(std::is_nothrow_copy_assignable<S>::value, "");
static_assert(std::is_nothrow_move_assignable<S>::value, "");
static_assert(std::is_trivially_copyable<S>::value, "");
static_assert(check_suspend_constexpr(), "");
}
{
// suppress unused warnings for the global constexpr test variable
((void)constexpr_sa);
}
}
|