1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// type_traits
// is_trivially_copyable
// These compilers have not implemented Core 2094 which makes volatile
// qualified types trivially copyable.
// XFAIL: clang-3, clang-4, apple-clang-6, apple-clang-7, apple-clang-8, apple-clang-9.0, gcc
#include <type_traits>
#include <cassert>
#include "test_macros.h"
template <class T>
void test_is_trivially_copyable()
{
static_assert( std::is_trivially_copyable<T>::value, "");
static_assert( std::is_trivially_copyable<const T>::value, "");
static_assert( std::is_trivially_copyable<volatile T>::value, "");
static_assert( std::is_trivially_copyable<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert( std::is_trivially_copyable_v<T>, "");
static_assert( std::is_trivially_copyable_v<const T>, "");
static_assert( std::is_trivially_copyable_v<volatile T>, "");
static_assert( std::is_trivially_copyable_v<const volatile T>, "");
#endif
}
template <class T>
void test_is_not_trivially_copyable()
{
static_assert(!std::is_trivially_copyable<T>::value, "");
static_assert(!std::is_trivially_copyable<const T>::value, "");
static_assert(!std::is_trivially_copyable<volatile T>::value, "");
static_assert(!std::is_trivially_copyable<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert(!std::is_trivially_copyable_v<T>, "");
static_assert(!std::is_trivially_copyable_v<const T>, "");
static_assert(!std::is_trivially_copyable_v<volatile T>, "");
static_assert(!std::is_trivially_copyable_v<const volatile T>, "");
#endif
}
struct A
{
int i_;
};
struct B
{
int i_;
~B() {assert(i_ == 0);}
};
class C
{
public:
C();
};
int main()
{
test_is_trivially_copyable<int> ();
test_is_trivially_copyable<const int> ();
test_is_trivially_copyable<A> ();
test_is_trivially_copyable<const A> ();
test_is_trivially_copyable<C> ();
test_is_not_trivially_copyable<int&> ();
test_is_not_trivially_copyable<const A&> ();
test_is_not_trivially_copyable<B> ();
}
|
