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
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// type_traits
// is_signed
#include <type_traits>
template <class T>
void test_is_signed()
{
static_assert( std::is_signed<T>::value, "");
static_assert( std::is_signed<const T>::value, "");
static_assert( std::is_signed<volatile T>::value, "");
static_assert( std::is_signed<const volatile T>::value, "");
}
template <class T>
void test_is_not_signed()
{
static_assert(!std::is_signed<T>::value, "");
static_assert(!std::is_signed<const T>::value, "");
static_assert(!std::is_signed<volatile T>::value, "");
static_assert(!std::is_signed<const volatile T>::value, "");
}
class Class
{
public:
~Class();
};
int main()
{
test_is_not_signed<void>();
test_is_not_signed<int&>();
test_is_not_signed<Class>();
test_is_not_signed<int*>();
test_is_not_signed<const int*>();
test_is_not_signed<char[3]>();
test_is_not_signed<char[3]>();
test_is_not_signed<bool>();
test_is_not_signed<unsigned>();
test_is_signed<int>();
test_is_signed<double>();
#ifndef _LIBCPP_HAS_NO_INT128
test_is_signed<__int128_t>();
test_is_not_signed<__uint128_t>();
#endif
}
|
