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
|
//===----------------------------------------------------------------------===//
//
// 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, c++17
// template<class T>
// concept unsigned_integral = // see below
#include <concepts>
#include <type_traits>
#include "arithmetic.h"
#include "test_macros.h"
template <typename T>
constexpr bool CheckUnsignedIntegralQualifiers() {
constexpr bool result = std::unsigned_integral<T>;
static_assert(std::unsigned_integral<const T> == result);
static_assert(std::unsigned_integral<volatile T> == result);
static_assert(std::unsigned_integral<const volatile T> == result);
static_assert(!std::unsigned_integral<T&>);
static_assert(!std::unsigned_integral<const T&>);
static_assert(!std::unsigned_integral<volatile T&>);
static_assert(!std::unsigned_integral<const volatile T&>);
static_assert(!std::unsigned_integral<T&&>);
static_assert(!std::unsigned_integral<const T&&>);
static_assert(!std::unsigned_integral<volatile T&&>);
static_assert(!std::unsigned_integral<const volatile T&&>);
static_assert(!std::unsigned_integral<T*>);
static_assert(!std::unsigned_integral<const T*>);
static_assert(!std::unsigned_integral<volatile T*>);
static_assert(!std::unsigned_integral<const volatile T*>);
static_assert(!std::unsigned_integral<T (*)()>);
static_assert(!std::unsigned_integral<T (&)()>);
static_assert(!std::unsigned_integral<T(&&)()>);
return result;
}
// standard unsigned types
static_assert(CheckUnsignedIntegralQualifiers<unsigned char>());
static_assert(CheckUnsignedIntegralQualifiers<unsigned short>());
static_assert(CheckUnsignedIntegralQualifiers<unsigned int>());
static_assert(CheckUnsignedIntegralQualifiers<unsigned long>());
static_assert(CheckUnsignedIntegralQualifiers<unsigned long long>());
// Whether bool and character types are signed or unsigned is impl-defined
static_assert(CheckUnsignedIntegralQualifiers<wchar_t>() ==
!std::is_signed_v<wchar_t>);
static_assert(CheckUnsignedIntegralQualifiers<bool>() ==
!std::is_signed_v<bool>);
static_assert(CheckUnsignedIntegralQualifiers<char>() ==
!std::is_signed_v<char>);
static_assert(CheckUnsignedIntegralQualifiers<char8_t>() ==
!std::is_signed_v<char8_t>);
static_assert(CheckUnsignedIntegralQualifiers<char16_t>() ==
!std::is_signed_v<char16_t>);
static_assert(CheckUnsignedIntegralQualifiers<char32_t>() ==
!std::is_signed_v<char32_t>);
// extended integers
#ifndef TEST_HAS_NO_INT128
static_assert(CheckUnsignedIntegralQualifiers<__uint128_t>());
static_assert(!CheckUnsignedIntegralQualifiers<__int128_t>());
#endif
// integer types that aren't unsigned integrals
static_assert(!CheckUnsignedIntegralQualifiers<signed char>());
static_assert(!CheckUnsignedIntegralQualifiers<short>());
static_assert(!CheckUnsignedIntegralQualifiers<int>());
static_assert(!CheckUnsignedIntegralQualifiers<long>());
static_assert(!CheckUnsignedIntegralQualifiers<long long>());
static_assert(!std::unsigned_integral<void>);
static_assert(!CheckUnsignedIntegralQualifiers<float>());
static_assert(!CheckUnsignedIntegralQualifiers<double>());
static_assert(!CheckUnsignedIntegralQualifiers<long double>());
static_assert(!CheckUnsignedIntegralQualifiers<ClassicEnum>());
static_assert(!CheckUnsignedIntegralQualifiers<ScopedEnum>());
static_assert(!CheckUnsignedIntegralQualifiers<EmptyStruct>());
static_assert(!CheckUnsignedIntegralQualifiers<int EmptyStruct::*>());
static_assert(!CheckUnsignedIntegralQualifiers<int (EmptyStruct::*)()>());
static_assert(CheckSubsumption(0));
static_assert(CheckSubsumption(0U));
int main(int, char**) { return 0; }
|
