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 18 enum Enum {zero, one_}; 19 20 #if TEST_STD_VER >= 11 21 enum BigEnum : unsigned long long // MSVC's ABI doesn't follow the Standard 22 #else 23 enum BigEnum 24 #endif 25 { 26 bigzero, 27 big = 0xFFFFFFFFFFFFFFFFULL 28 }; 29 30 #if !defined(_LIBCPP_HAS_NO_INT128) && !defined(_LIBCPP_HAS_NO_STRONG_ENUMS) 31 enum HugeEnum : __int128_t 32 { 33 hugezero 34 }; 35 #endif 36 37 template <class T, class U> 38 void 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 46 int 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
