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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
// type_traits
// aligned_union<size_t Len, class ...Types>
// Issue 3034 added:
// The member typedef type shall be a trivial standard-layout type.
#include <type_traits>
#include "test_macros.h"
int main(int, char**)
{
{
typedef std::aligned_union<10, char >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<10, char>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 1, "");
static_assert(sizeof(T1) == 10, "");
}
{
typedef std::aligned_union<10, short >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<10, short>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 2, "");
static_assert(sizeof(T1) == 10, "");
}
{
typedef std::aligned_union<10, int >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<10, int>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 4, "");
static_assert(sizeof(T1) == 12, "");
}
{
typedef std::aligned_union<10, double >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<10, double>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 8, "");
static_assert(sizeof(T1) == 16, "");
}
{
typedef std::aligned_union<10, short, char >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<10, short, char>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 2, "");
static_assert(sizeof(T1) == 10, "");
}
{
typedef std::aligned_union<10, char, short >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<10, char, short>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 2, "");
static_assert(sizeof(T1) == 10, "");
}
{
typedef std::aligned_union<2, int, char, short >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<2, int, char, short>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 4, "");
static_assert(sizeof(T1) == 4, "");
}
{
typedef std::aligned_union<2, char, int, short >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<2, char, int, short>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 4, "");
static_assert(sizeof(T1) == 4, "");
}
{
typedef std::aligned_union<2, char, short, int >::type T1;
#if TEST_STD_VER > 11
ASSERT_SAME_TYPE(T1, std::aligned_union_t<2, char, short, int>);
#endif
static_assert(std::is_trivial<T1>::value, "");
static_assert(std::is_standard_layout<T1>::value, "");
static_assert(std::alignment_of<T1>::value == 4, "");
static_assert(sizeof(T1) == 4, "");
}
return 0;
}
|
