73 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// type_traits10 11// make_unsigned12 13#include <type_traits>14 15#include "test_macros.h"16 17enum Enum {zero, one_};18 19#if TEST_STD_VER >= 1120enum BigEnum : unsigned long long // MSVC's ABI doesn't follow the Standard21#else22enum BigEnum23#endif24{25 bigzero,26 big = 0xFFFFFFFFFFFFFFFFULL27};28 29#if !defined(TEST_HAS_NO_INT128) && TEST_STD_VER >= 1130enum HugeEnum : __int128_t31{32 hugezero33};34#endif35 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 > 1141 ASSERT_SAME_TYPE(U, std::make_unsigned_t<T>);42#endif43}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_INT12864 test_make_unsigned<__int128_t, __uint128_t>();65 test_make_unsigned<__uint128_t, __uint128_t>();66# if TEST_STD_VER >= 1167 test_make_unsigned<HugeEnum, __uint128_t>();68# endif69#endif70 71 return 0;72}73