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
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
// <type_traits>
// template <class T> struct is_aggregate;
// template <class T> constexpr bool is_aggregate_v = is_aggregate<T>::value;
#include <type_traits>
#include "test_macros.h"
template <class T>
void test_true()
{
static_assert( std::is_aggregate<T>::value, "");
static_assert( std::is_aggregate<const T>::value, "");
static_assert( std::is_aggregate<volatile T>::value, "");
static_assert( std::is_aggregate<const volatile T>::value, "");
static_assert( std::is_aggregate_v<T>, "");
static_assert( std::is_aggregate_v<const T>, "");
static_assert( std::is_aggregate_v<volatile T>, "");
static_assert( std::is_aggregate_v<const volatile T>, "");
}
template <class T>
void test_false()
{
static_assert(!std::is_aggregate<T>::value, "");
static_assert(!std::is_aggregate<const T>::value, "");
static_assert(!std::is_aggregate<volatile T>::value, "");
static_assert(!std::is_aggregate<const volatile T>::value, "");
static_assert(!std::is_aggregate_v<T>, "");
static_assert(!std::is_aggregate_v<const T>, "");
static_assert(!std::is_aggregate_v<volatile T>, "");
static_assert(!std::is_aggregate_v<const volatile T>, "");
}
struct Aggregate {};
struct HasCons { HasCons(int); };
struct HasPriv {
void PreventUnusedPrivateMemberWarning();
private:
int x;
};
struct Union { int x; void* y; };
int main(int, char**)
{
{
test_false<void>();
test_false<int>();
test_false<void*>();
test_false<void()>();
test_false<void() const>();
test_false<void(Aggregate::*)(int) const>();
test_false<Aggregate&>();
test_false<HasCons>();
test_false<HasPriv>();
}
{
test_true<Aggregate>();
test_true<Aggregate[]>();
test_true<Aggregate[42][101]>();
test_true<Union>();
}
return 0;
}
|
