| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14 |
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| 10 | // <optional> |
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| 11 | |
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| 12 | // T shall be an object type and shall satisfy the requirements of Destructible |
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| 13 | |
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| 14 | #include <optional> |
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| 15 | |
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| 16 | using std::optional; |
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| 17 | |
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| 18 | struct X |
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| 19 | { |
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| 20 | private: |
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| 21 | ~X() {} |
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| 22 | }; |
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| 23 | |
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| 24 | int main(int, char**) |
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| 25 | { |
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| 26 | using std::optional; |
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| 27 | { |
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| 28 | // expected-error-re@optional:* 2 {{static assertion failed{{.*}}instantiation of optional with a reference type is ill-formed}} |
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| 29 | optional<int&> opt1; |
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| 30 | optional<int&&> opt2; |
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| 31 | } |
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| 32 | { |
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| 33 | // expected-error-re@optional:* {{static assertion failed{{.*}}instantiation of optional with a non-destructible type is ill-formed}} |
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| 34 | optional<X> opt3; |
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| 35 | } |
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| 36 | { |
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| 37 | // expected-error-re@optional:* {{static assertion failed{{.*}}instantiation of optional with a non-object type is undefined behavior}} |
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| 38 | // expected-error-re@optional:* {{static assertion failed{{.*}}instantiation of optional with a non-destructible type is ill-formed}} |
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| 39 | optional<void()> opt4; |
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| 40 | } |
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| 41 | { |
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| 42 | // expected-error-re@optional:* {{static assertion failed{{.*}}instantiation of optional with a non-object type is undefined behavior}} |
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| 43 | // expected-error-re@optional:* {{static assertion failed{{.*}}instantiation of optional with a non-destructible type is ill-formed}} |
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| 44 | // expected-error@optional:* 1+ {{cannot form a reference to 'void'}} |
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| 45 | optional<const void> opt4; |
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| 46 | } |
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| 47 | // FIXME these are garbage diagnostics that Clang should not produce |
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| 48 | // expected-error@optional:* 0+ {{is not a base class}} |
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| 49 | |
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| 50 | return 0; |
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| 51 | } |
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| 52 | |
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