1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// type_traits
10
11// make_unsigned
12
13#include <type_traits>
14
15#include "test_macros.h"
16
17enum Enum {zero, one_};
18
19#if TEST_STD_VER >= 11
20enum BigEnum : unsigned long long // MSVC's ABI doesn't follow the Standard
21#else
22enum BigEnum
23#endif
24{
25 bigzero,
26 big = 0xFFFFFFFFFFFFFFFFULL
27};
28
29#if !defined(TEST_HAS_NO_INT128) && TEST_STD_VER >= 11
30enum HugeEnum : __int128_t
31{
32 hugezero
33};
34#endif
35
36template <class T, class U>
37void test_make_unsigned()
38{
39 ASSERT_SAME_TYPE(U, typename std::make_unsigned<T>::type);
40#if TEST_STD_VER > 11
41 ASSERT_SAME_TYPE(U, std::make_unsigned_t<T>);
42#endif
43}
44
45int main(int, char**)
46{
47 test_make_unsigned<signed char, unsigned char> ();
48 test_make_unsigned<unsigned char, unsigned char> ();
49 test_make_unsigned<char, unsigned char> ();
50 test_make_unsigned<short, unsigned short> ();
51 test_make_unsigned<unsigned short, unsigned short> ();
52 test_make_unsigned<int, unsigned int> ();
53 test_make_unsigned<unsigned int, unsigned int> ();
54 test_make_unsigned<long, unsigned long> ();
55 test_make_unsigned<unsigned long, unsigned long> ();
56 test_make_unsigned<long long, unsigned long long> ();
57 test_make_unsigned<unsigned long long, unsigned long long> ();
58 test_make_unsigned<wchar_t, std::conditional<sizeof(wchar_t) == 4, unsigned int, unsigned short>::type> ();
59 test_make_unsigned<const wchar_t, std::conditional<sizeof(wchar_t) == 4, const unsigned int, const unsigned short>::type> ();
60 test_make_unsigned<const Enum, std::conditional<sizeof(Enum) == sizeof(int), const unsigned int, const unsigned char>::type >();
61 test_make_unsigned<BigEnum,
62 std::conditional<sizeof(long) == 4, unsigned long long, unsigned long>::type> ();
63#ifndef TEST_HAS_NO_INT128
64 test_make_unsigned<__int128_t, __uint128_t>();
65 test_make_unsigned<__uint128_t, __uint128_t>();
66# if TEST_STD_VER >= 11
67 test_make_unsigned<HugeEnum, __uint128_t>();
68# endif
69#endif
70
71 return 0;
72}
73

source code of libcxx/test/std/utilities/meta/meta.trans/meta.trans.sign/make_unsigned.pass.cpp