1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14
10 // <optional>
11
12 // T shall be an object type other than cv in_place_t or cv nullopt_t
13 // and shall satisfy the Cpp17Destructible requirements.
14 // Note: array types do not satisfy the Cpp17Destructible requirements.
15
16 #include <optional>
17 #include <type_traits>
18 #include <cassert>
19
20 #include "test_macros.h"
21
22 struct NonDestructible { ~NonDestructible() = delete; };
23
main(int,char **)24 int main(int, char**)
25 {
26 {
27 std::optional<char &> o1; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with a reference type is ill-formed}}
28 std::optional<NonDestructible> o2; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with a non-destructible type is ill-formed}}
29 std::optional<char[20]> o3; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with an array type is ill-formed}}
30 }
31
32 {
33 std::optional< std::in_place_t> o1; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
34 std::optional<const std::in_place_t> o2; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
35 std::optional< volatile std::in_place_t> o3; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
36 std::optional<const volatile std::in_place_t> o4; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
37 }
38
39 {
40 std::optional< std::nullopt_t> o1; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
41 std::optional<const std::nullopt_t> o2; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
42 std::optional< volatile std::nullopt_t> o3; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
43 std::optional<const volatile std::nullopt_t> o4; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
44 }
45
46 return 0;
47 }
48