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_trivially_destructible
12
13 #include <type_traits>
14 #include "test_macros.h"
15
16 template <class T>
test_is_trivially_destructible()17 void test_is_trivially_destructible()
18 {
19 static_assert( std::is_trivially_destructible<T>::value, "");
20 static_assert( std::is_trivially_destructible<const T>::value, "");
21 static_assert( std::is_trivially_destructible<volatile T>::value, "");
22 static_assert( std::is_trivially_destructible<const volatile T>::value, "");
23 #if TEST_STD_VER > 14
24 static_assert( std::is_trivially_destructible_v<T>, "");
25 static_assert( std::is_trivially_destructible_v<const T>, "");
26 static_assert( std::is_trivially_destructible_v<volatile T>, "");
27 static_assert( std::is_trivially_destructible_v<const volatile T>, "");
28 #endif
29 }
30
31 template <class T>
test_is_not_trivially_destructible()32 void test_is_not_trivially_destructible()
33 {
34 static_assert(!std::is_trivially_destructible<T>::value, "");
35 static_assert(!std::is_trivially_destructible<const T>::value, "");
36 static_assert(!std::is_trivially_destructible<volatile T>::value, "");
37 static_assert(!std::is_trivially_destructible<const volatile T>::value, "");
38 #if TEST_STD_VER > 14
39 static_assert(!std::is_trivially_destructible_v<T>, "");
40 static_assert(!std::is_trivially_destructible_v<const T>, "");
41 static_assert(!std::is_trivially_destructible_v<volatile T>, "");
42 static_assert(!std::is_trivially_destructible_v<const volatile T>, "");
43 #endif
44 }
45
~PublicDestructorPublicDestructor46 struct PublicDestructor { public: ~PublicDestructor() {}};
~ProtectedDestructorProtectedDestructor47 struct ProtectedDestructor { protected: ~ProtectedDestructor() {}};
~PrivateDestructorPrivateDestructor48 struct PrivateDestructor { private: ~PrivateDestructor() {}};
49
~VirtualPublicDestructorVirtualPublicDestructor50 struct VirtualPublicDestructor { public: virtual ~VirtualPublicDestructor() {}};
~VirtualProtectedDestructorVirtualProtectedDestructor51 struct VirtualProtectedDestructor { protected: virtual ~VirtualProtectedDestructor() {}};
~VirtualPrivateDestructorVirtualPrivateDestructor52 struct VirtualPrivateDestructor { private: virtual ~VirtualPrivateDestructor() {}};
53
54 struct PurePublicDestructor { public: virtual ~PurePublicDestructor() = 0; };
55 struct PureProtectedDestructor { protected: virtual ~PureProtectedDestructor() = 0; };
56 struct PurePrivateDestructor { private: virtual ~PurePrivateDestructor() = 0; };
57
58
59 class Empty
60 {
61 };
62
63 union Union {};
64
65 struct bit_zero
66 {
67 int : 0;
68 };
69
70 class Abstract
71 {
72 virtual void foo() = 0;
73 };
74
75 class AbstractDestructor
76 {
77 virtual ~AbstractDestructor() = 0;
78 };
79
80 struct A
81 {
82 ~A();
83 };
84
main(int,char **)85 int main(int, char**)
86 {
87 test_is_not_trivially_destructible<void>();
88 test_is_not_trivially_destructible<A>();
89 test_is_not_trivially_destructible<char[]>();
90 test_is_not_trivially_destructible<VirtualPublicDestructor>();
91 test_is_not_trivially_destructible<PurePublicDestructor>();
92
93 test_is_trivially_destructible<Abstract>();
94 test_is_trivially_destructible<Union>();
95 test_is_trivially_destructible<Empty>();
96 test_is_trivially_destructible<int&>();
97 test_is_trivially_destructible<int>();
98 test_is_trivially_destructible<double>();
99 test_is_trivially_destructible<int*>();
100 test_is_trivially_destructible<const int*>();
101 test_is_trivially_destructible<char[3]>();
102 test_is_trivially_destructible<bit_zero>();
103
104 #if TEST_STD_VER >= 11
105 // requires access control sfinae
106 test_is_not_trivially_destructible<ProtectedDestructor>();
107 test_is_not_trivially_destructible<PrivateDestructor>();
108 test_is_not_trivially_destructible<VirtualProtectedDestructor>();
109 test_is_not_trivially_destructible<VirtualPrivateDestructor>();
110 test_is_not_trivially_destructible<PureProtectedDestructor>();
111 test_is_not_trivially_destructible<PurePrivateDestructor>();
112 #endif
113
114 #if TEST_HAS_BUILTIN_IDENTIFIER(_Atomic)
115 test_is_trivially_destructible<_Atomic int>();
116 test_is_trivially_destructible<_Atomic float>();
117 test_is_trivially_destructible<_Atomic int*>();
118 #endif
119
120 return 0;
121 }
122