b64f8b07c1
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
2.0 KiB
C++
43 lines
2.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// type_traits
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// make_unsigned
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#include <type_traits>
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enum Enum {zero, one_};
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enum BigEnum
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{
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bzero,
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big = 0xFFFFFFFFFFFFFFFFULL
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};
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int main()
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{
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static_assert((std::is_same<std::make_unsigned<signed char>::type, unsigned char>::value), "");
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static_assert((std::is_same<std::make_unsigned<unsigned char>::type, unsigned char>::value), "");
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static_assert((std::is_same<std::make_unsigned<char>::type, unsigned char>::value), "");
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static_assert((std::is_same<std::make_unsigned<short>::type, unsigned short>::value), "");
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static_assert((std::is_same<std::make_unsigned<unsigned short>::type, unsigned short>::value), "");
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static_assert((std::is_same<std::make_unsigned<int>::type, unsigned int>::value), "");
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static_assert((std::is_same<std::make_unsigned<unsigned int>::type, unsigned int>::value), "");
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static_assert((std::is_same<std::make_unsigned<long>::type, unsigned long>::value), "");
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static_assert((std::is_same<std::make_unsigned<unsigned long>::type, unsigned long>::value), "");
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static_assert((std::is_same<std::make_unsigned<long long>::type, unsigned long long>::value), "");
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static_assert((std::is_same<std::make_unsigned<unsigned long long>::type, unsigned long long>::value), "");
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static_assert((std::is_same<std::make_unsigned<wchar_t>::type, unsigned int>::value), "");
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static_assert((std::is_same<std::make_unsigned<const wchar_t>::type, const unsigned int>::value), "");
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static_assert((std::is_same<std::make_unsigned<const Enum>::type, const unsigned int>::value), "");
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static_assert((std::is_same<std::make_unsigned<BigEnum>::type,
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std::conditional<sizeof(long) == 4, unsigned long long, unsigned long>::type>::value), "");
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}
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