make_unsigned.pass.cpp revision 933afa9761c1c1f916161278a99284d50a594939
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 16enum Enum {zero, one_}; 17 18enum BigEnum 19{ 20 bzero, 21 big = 0xFFFFFFFFFFFFFFFFULL 22}; 23 24template <class T, class U> 25void test_make_unsigned() 26{ 27 static_assert((std::is_same<typename std::make_unsigned<T>::type, U>::value), ""); 28#if _LIBCPP_STD_VER > 11 29 static_assert((std::is_same<std::make_unsigned_t<T>, U>::value), ""); 30#endif 31} 32 33int main() 34{ 35 test_make_unsigned<signed char, unsigned char> (); 36 test_make_unsigned<unsigned char, unsigned char> (); 37 test_make_unsigned<char, unsigned char> (); 38 test_make_unsigned<short, unsigned short> (); 39 test_make_unsigned<unsigned short, unsigned short> (); 40 test_make_unsigned<int, unsigned int> (); 41 test_make_unsigned<unsigned int, unsigned int> (); 42 test_make_unsigned<long, unsigned long> (); 43 test_make_unsigned<unsigned long, unsigned long> (); 44 test_make_unsigned<long long, unsigned long long> (); 45 test_make_unsigned<unsigned long long, unsigned long long> (); 46 test_make_unsigned<wchar_t, unsigned int> (); 47 test_make_unsigned<const wchar_t, const unsigned int> (); 48 test_make_unsigned<const Enum, const unsigned int> (); 49 test_make_unsigned<BigEnum, 50 std::conditional<sizeof(long) == 4, unsigned long long, unsigned long>::type> (); 51} 52