1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// type_traits
11
12// make_unsigned
13
14#include <type_traits>
15
16#include "test_macros.h"
17
18enum Enum {zero, one_};
19
20#if TEST_STD_VER >= 11
21enum BigEnum : unsigned long long // MSVC's ABI doesn't follow the Standard
22#else
23enum BigEnum
24#endif
25{
26    bigzero,
27    big = 0xFFFFFFFFFFFFFFFFULL
28};
29
30#if !defined(_LIBCPP_HAS_NO_INT128) && !defined(_LIBCPP_HAS_NO_STRONG_ENUMS)
31enum HugeEnum : __int128_t
32{
33    hugezero
34};
35#endif
36
37template <class T, class U>
38void test_make_unsigned()
39{
40    static_assert((std::is_same<typename std::make_unsigned<T>::type, U>::value), "");
41#if TEST_STD_VER > 11
42    static_assert((std::is_same<std::make_unsigned_t<T>, U>::value), "");
43#endif
44}
45
46int main()
47{
48    test_make_unsigned<signed char, unsigned char> ();
49    test_make_unsigned<unsigned char, unsigned char> ();
50    test_make_unsigned<char, unsigned char> ();
51    test_make_unsigned<short, unsigned short> ();
52    test_make_unsigned<unsigned short, unsigned short> ();
53    test_make_unsigned<int, unsigned int> ();
54    test_make_unsigned<unsigned int, unsigned int> ();
55    test_make_unsigned<long, unsigned long> ();
56    test_make_unsigned<unsigned long, unsigned long> ();
57    test_make_unsigned<long long, unsigned long long> ();
58    test_make_unsigned<unsigned long long, unsigned long long> ();
59    test_make_unsigned<wchar_t, std::conditional<sizeof(wchar_t) == 4, unsigned int, unsigned short>::type> ();
60    test_make_unsigned<const wchar_t, std::conditional<sizeof(wchar_t) == 4, const unsigned int, const unsigned short>::type> ();
61    test_make_unsigned<const Enum, std::conditional<sizeof(Enum) == sizeof(int), const unsigned int, const unsigned char>::type >();
62    test_make_unsigned<BigEnum,
63                   std::conditional<sizeof(long) == 4, unsigned long long, unsigned long>::type> ();
64#ifndef _LIBCPP_HAS_NO_INT128
65    test_make_unsigned<__int128_t, __uint128_t>();
66    test_make_unsigned<__uint128_t, __uint128_t>();
67# ifndef _LIBCPP_HAS_NO_STRONG_ENUMS
68    test_make_unsigned<HugeEnum, __uint128_t>();
69# endif
70#endif
71}
72