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_move_assignable
12 
13 #include <type_traits>
14 #include "test_macros.h"
15 
16 template <class T>
test_has_trivial_assign()17 void test_has_trivial_assign()
18 {
19     static_assert( std::is_trivially_move_assignable<T>::value, "");
20 #if TEST_STD_VER > 14
21     static_assert( std::is_trivially_move_assignable_v<T>, "");
22 #endif
23 }
24 
25 template <class T>
test_has_not_trivial_assign()26 void test_has_not_trivial_assign()
27 {
28     static_assert(!std::is_trivially_move_assignable<T>::value, "");
29 #if TEST_STD_VER > 14
30     static_assert(!std::is_trivially_move_assignable_v<T>, "");
31 #endif
32 }
33 
34 class Empty
35 {
36 };
37 
38 class NotEmpty
39 {
40     virtual ~NotEmpty();
41 };
42 
43 union Union {};
44 
45 struct bit_zero
46 {
47     int :  0;
48 };
49 
50 class Abstract
51 {
52     virtual ~Abstract() = 0;
53 };
54 
55 struct A
56 {
57     A& operator=(const A&);
58 };
59 
main(int,char **)60 int main(int, char**)
61 {
62     test_has_trivial_assign<int&>();
63     test_has_trivial_assign<Union>();
64     test_has_trivial_assign<Empty>();
65     test_has_trivial_assign<int>();
66     test_has_trivial_assign<double>();
67     test_has_trivial_assign<int*>();
68     test_has_trivial_assign<const int*>();
69     test_has_trivial_assign<bit_zero>();
70 
71     test_has_not_trivial_assign<void>();
72     test_has_not_trivial_assign<A>();
73     test_has_not_trivial_assign<NotEmpty>();
74     test_has_not_trivial_assign<Abstract>();
75     test_has_not_trivial_assign<const Empty>();
76 
77 
78   return 0;
79 }
80