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
17 enum Enum {zero, one_};
18
19 #if TEST_STD_VER >= 11
20 enum BigEnum : unsigned long long // MSVC's ABI doesn't follow the Standard
21 #else
22 enum BigEnum
23 #endif
24 {
25 bigzero,
26 big = 0xFFFFFFFFFFFFFFFFULL
27 };
28
29 #if !defined(_LIBCPP_HAS_NO_INT128) && !defined(_LIBCPP_HAS_NO_STRONG_ENUMS)
30 enum HugeEnum : __int128_t
31 {
32 hugezero
33 };
34 #endif
35
36 template <class T, class U>
test_make_unsigned()37 void 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
main(int,char **)45 int 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 _LIBCPP_HAS_NO_INT128
64 test_make_unsigned<__int128_t, __uint128_t>();
65 test_make_unsigned<__uint128_t, __uint128_t>();
66 # ifndef _LIBCPP_HAS_NO_STRONG_ENUMS
67 test_make_unsigned<HugeEnum, __uint128_t>();
68 # endif
69 #endif
70
71 return 0;
72 }
73