54 lines
1.8 KiB
C++
54 lines
1.8 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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// test numeric_limits
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// digits10
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#include <limits>
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#include <cfloat>
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template <class T, int expected>
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void
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test()
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{
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static_assert(std::numeric_limits<T>::digits10 == expected, "digits10 test 1");
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static_assert(std::numeric_limits<T>::is_bounded, "digits10 test 5");
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static_assert(std::numeric_limits<const T>::digits10 == expected, "digits10 test 2");
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static_assert(std::numeric_limits<const T>::is_bounded, "digits10 test 6");
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static_assert(std::numeric_limits<volatile T>::digits10 == expected, "digits10 test 3");
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static_assert(std::numeric_limits<volatile T>::is_bounded, "digits10 test 7");
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static_assert(std::numeric_limits<const volatile T>::digits10 == expected, "digits10 test 4");
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static_assert(std::numeric_limits<const volatile T>::is_bounded, "digits10 test 8");
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}
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int main()
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{
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test<bool, 0>();
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test<char, 2>();
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test<signed char, 2>();
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test<unsigned char, 2>();
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test<wchar_t, 9>();
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#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
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test<char16_t, 4>();
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test<char32_t, 9>();
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#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
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test<short, 4>();
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test<unsigned short, 4>();
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test<int, 9>();
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test<unsigned int, 9>();
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test<long, sizeof(long) == 4 ? 9 : 18>();
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test<unsigned long, sizeof(long) == 4 ? 9 : 19>();
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test<long long, 18>();
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test<unsigned long long, 19>();
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test<float, FLT_DIG>();
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test<double, DBL_DIG>();
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test<long double, LDBL_DIG>();
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}
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