bc8d3f97eb
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
1 line
1.9 KiB
C++
1 line
1.9 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// type_traits
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// make_signed
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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_signed<signed char>::type, signed char>::value), "");
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static_assert((std::is_same<std::make_signed<unsigned char>::type, signed char>::value), "");
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static_assert((std::is_same<std::make_signed<char>::type, signed char>::value), "");
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static_assert((std::is_same<std::make_signed<short>::type, signed short>::value), "");
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static_assert((std::is_same<std::make_signed<unsigned short>::type, signed short>::value), "");
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static_assert((std::is_same<std::make_signed<int>::type, signed int>::value), "");
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static_assert((std::is_same<std::make_signed<unsigned int>::type, signed int>::value), "");
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static_assert((std::is_same<std::make_signed<long>::type, signed long>::value), "");
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static_assert((std::is_same<std::make_signed<unsigned long>::type, long>::value), "");
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static_assert((std::is_same<std::make_signed<long long>::type, signed long long>::value), "");
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static_assert((std::is_same<std::make_signed<unsigned long long>::type, signed long long>::value), "");
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static_assert((std::is_same<std::make_signed<wchar_t>::type, int>::value), "");
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static_assert((std::is_same<std::make_signed<const wchar_t>::type, const int>::value), "");
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static_assert((std::is_same<std::make_signed<const Enum>::type, const int>::value), "");
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static_assert((std::is_same<std::make_signed<BigEnum>::type,
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std::conditional<sizeof(long) == 4, long long, long>::type>::value), "");
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}
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