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 // type_traits
10
11 // is_nothrow_destructible
12
13 #include <type_traits>
14 #include "test_macros.h"
15
16 template <class T>
test_is_nothrow_destructible()17 void test_is_nothrow_destructible()
18 {
19 static_assert( std::is_nothrow_destructible<T>::value, "");
20 static_assert( std::is_nothrow_destructible<const T>::value, "");
21 static_assert( std::is_nothrow_destructible<volatile T>::value, "");
22 static_assert( std::is_nothrow_destructible<const volatile T>::value, "");
23 #if TEST_STD_VER > 14
24 static_assert( std::is_nothrow_destructible_v<T>, "");
25 static_assert( std::is_nothrow_destructible_v<const T>, "");
26 static_assert( std::is_nothrow_destructible_v<volatile T>, "");
27 static_assert( std::is_nothrow_destructible_v<const volatile T>, "");
28 #endif
29 }
30
31 template <class T>
test_is_not_nothrow_destructible()32 void test_is_not_nothrow_destructible()
33 {
34 static_assert(!std::is_nothrow_destructible<T>::value, "");
35 static_assert(!std::is_nothrow_destructible<const T>::value, "");
36 static_assert(!std::is_nothrow_destructible<volatile T>::value, "");
37 static_assert(!std::is_nothrow_destructible<const volatile T>::value, "");
38 #if TEST_STD_VER > 14
39 static_assert(!std::is_nothrow_destructible_v<T>, "");
40 static_assert(!std::is_nothrow_destructible_v<const T>, "");
41 static_assert(!std::is_nothrow_destructible_v<volatile T>, "");
42 static_assert(!std::is_nothrow_destructible_v<const volatile T>, "");
43 #endif
44 }
45
46
~PublicDestructorPublicDestructor47 struct PublicDestructor { public: ~PublicDestructor() {}};
~ProtectedDestructorProtectedDestructor48 struct ProtectedDestructor { protected: ~ProtectedDestructor() {}};
~PrivateDestructorPrivateDestructor49 struct PrivateDestructor { private: ~PrivateDestructor() {}};
50
~VirtualPublicDestructorVirtualPublicDestructor51 struct VirtualPublicDestructor { public: virtual ~VirtualPublicDestructor() {}};
~VirtualProtectedDestructorVirtualProtectedDestructor52 struct VirtualProtectedDestructor { protected: virtual ~VirtualProtectedDestructor() {}};
~VirtualPrivateDestructorVirtualPrivateDestructor53 struct VirtualPrivateDestructor { private: virtual ~VirtualPrivateDestructor() {}};
54
55 struct PurePublicDestructor { public: virtual ~PurePublicDestructor() = 0; };
56 struct PureProtectedDestructor { protected: virtual ~PureProtectedDestructor() = 0; };
57 struct PurePrivateDestructor { private: virtual ~PurePrivateDestructor() = 0; };
58
59 struct ExplicitlyNoThrowDestructor {
~ExplicitlyNoThrowDestructorExplicitlyNoThrowDestructor60 ~ExplicitlyNoThrowDestructor() TEST_NOEXCEPT {}
61 };
62
63 class Empty
64 {
65 };
66
67
68 union Union {};
69
70 struct bit_zero
71 {
72 int : 0;
73 };
74
75 class Abstract
76 {
77 virtual void foo() = 0;
78 };
79
80
main(int,char **)81 int main(int, char**)
82 {
83 test_is_not_nothrow_destructible<void>();
84 test_is_not_nothrow_destructible<char[]>();
85 test_is_not_nothrow_destructible<char[][3]>();
86
87 test_is_nothrow_destructible<int&>();
88 test_is_nothrow_destructible<int>();
89 test_is_nothrow_destructible<double>();
90 test_is_nothrow_destructible<int*>();
91 test_is_nothrow_destructible<const int*>();
92 test_is_nothrow_destructible<char[3]>();
93
94 #if TEST_STD_VER >= 11
95 // requires noexcept. These are all destructible.
96 test_is_nothrow_destructible<PublicDestructor>();
97 test_is_nothrow_destructible<VirtualPublicDestructor>();
98 test_is_nothrow_destructible<PurePublicDestructor>();
99 #endif
100 test_is_nothrow_destructible<ExplicitlyNoThrowDestructor>();
101 test_is_nothrow_destructible<bit_zero>();
102 test_is_nothrow_destructible<Abstract>();
103 test_is_nothrow_destructible<Empty>();
104 test_is_nothrow_destructible<Union>();
105 // requires access control
106 test_is_not_nothrow_destructible<ProtectedDestructor>();
107 test_is_not_nothrow_destructible<PrivateDestructor>();
108 test_is_not_nothrow_destructible<VirtualProtectedDestructor>();
109 test_is_not_nothrow_destructible<VirtualPrivateDestructor>();
110 test_is_not_nothrow_destructible<PureProtectedDestructor>();
111 test_is_not_nothrow_destructible<PurePrivateDestructor>();
112
113
114 return 0;
115 }
116