text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // test numeric_limits
  
  // digits
  
  #include <limits>
  #include <cfloat>
  
  template <class T, int expected>
  void
  test()
  {
      static_assert(std::numeric_limits<T>::digits == expected, "digits test 1");
      static_assert(std::numeric_limits<const T>::digits == expected, "digits test 2");
      static_assert(std::numeric_limits<volatile T>::digits == expected, "digits test 3");
      static_assert(std::numeric_limits<const volatile T>::digits == expected, "digits test 4");
  }
  
  int main()
  {
      test<bool, 1>();
      test<char, std::numeric_limits<char>::is_signed ? 7 : 8>();
      test<signed char, 7>();
      test<unsigned char, 8>();
      test<wchar_t, std::numeric_limits<wchar_t>::is_signed ? sizeof(wchar_t)*8-1 : sizeof(wchar_t)*8>();
  #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
      test<char16_t, 16>();
      test<char32_t, 32>();
  #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
      test<short, 15>();
      test<unsigned short, 16>();
      test<int, 31>();
      test<unsigned int, 32>();
      test<long, sizeof(long) == 4 ? 31 : 63>();
      test<unsigned long, sizeof(long) == 4 ? 32 : 64>();
      test<long long, 63>();
      test<unsigned long long, 64>();
  #ifndef _LIBCPP_HAS_NO_INT128
      test<__int128_t, 127>();
      test<__uint128_t, 128>();
  #endif
      test<float, FLT_MANT_DIG>();
      test<double, DBL_MANT_DIG>();
      test<long double, LDBL_MANT_DIG>();
  }
  