| 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 |
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| 10 | |
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| 11 | // <type_traits> |
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| 12 | |
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| 13 | // __is_implicitly_default_constructible<Tp> |
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| 14 | |
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| 15 | #include <type_traits> |
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| 16 | |
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| 17 | |
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| 18 | struct ExplicitlyDefaultConstructible1 { |
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| 19 | explicit ExplicitlyDefaultConstructible1() = default; |
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| 20 | }; |
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| 21 | |
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| 22 | struct ExplicitlyDefaultConstructible2 { |
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| 23 | explicit ExplicitlyDefaultConstructible2() { } |
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| 24 | }; |
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| 25 | |
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| 26 | struct ImplicitlyDefaultConstructible1 { |
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| 27 | ImplicitlyDefaultConstructible1() { } |
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| 28 | }; |
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| 29 | |
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| 30 | struct ImplicitlyDefaultConstructible2 { |
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| 31 | ImplicitlyDefaultConstructible2() = default; |
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| 32 | }; |
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| 33 | |
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| 34 | struct NonDefaultConstructible1 { |
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| 35 | NonDefaultConstructible1() = delete; |
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| 36 | }; |
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| 37 | |
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| 38 | struct NonDefaultConstructible2 { |
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| 39 | explicit NonDefaultConstructible2() = delete; |
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| 40 | }; |
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| 41 | |
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| 42 | struct NonDefaultConstructible3 { |
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| 43 | NonDefaultConstructible3(NonDefaultConstructible3&&) { } |
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| 44 | }; |
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| 45 | |
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| 46 | struct ProtectedDefaultConstructible { |
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| 47 | protected: |
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| 48 | ProtectedDefaultConstructible() = default; |
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| 49 | }; |
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| 50 | |
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| 51 | struct PrivateDefaultConstructible { |
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| 52 | private: |
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| 53 | PrivateDefaultConstructible() = default; |
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| 54 | }; |
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| 55 | |
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| 56 | struct Base { }; |
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| 57 | |
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| 58 | struct ProtectedDefaultConstructibleWithBase : Base { |
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| 59 | protected: |
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| 60 | ProtectedDefaultConstructibleWithBase() = default; |
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| 61 | }; |
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| 62 | |
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| 63 | struct PrivateDefaultConstructibleWithBase : Base { |
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| 64 | private: |
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| 65 | PrivateDefaultConstructibleWithBase() = default; |
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| 66 | }; |
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| 67 | |
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| 68 | static_assert(!std::__is_implicitly_default_constructible<ExplicitlyDefaultConstructible1>::value, "" ); |
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| 69 | static_assert(!std::__is_implicitly_default_constructible<ExplicitlyDefaultConstructible2>::value, "" ); |
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| 70 | static_assert(std::__is_implicitly_default_constructible<ImplicitlyDefaultConstructible1>::value, "" ); |
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| 71 | static_assert(std::__is_implicitly_default_constructible<ImplicitlyDefaultConstructible2>::value, "" ); |
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| 72 | static_assert(!std::__is_implicitly_default_constructible<NonDefaultConstructible1>::value, "" ); |
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| 73 | static_assert(!std::__is_implicitly_default_constructible<NonDefaultConstructible2>::value, "" ); |
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| 74 | static_assert(!std::__is_implicitly_default_constructible<NonDefaultConstructible3>::value, "" ); |
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| 75 | static_assert(!std::__is_implicitly_default_constructible<ProtectedDefaultConstructible>::value, "" ); |
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| 76 | static_assert(!std::__is_implicitly_default_constructible<PrivateDefaultConstructible>::value, "" ); |
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| 77 | static_assert(!std::__is_implicitly_default_constructible<ProtectedDefaultConstructibleWithBase>::value, "" ); |
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| 78 | static_assert(!std::__is_implicitly_default_constructible<PrivateDefaultConstructibleWithBase>::value, "" ); |
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| 79 | |
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| 80 | int main(int, char**) { |
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| 81 | return 0; |
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| 82 | } |
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| 83 | |
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