1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// test numeric_limits 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// digits10 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <limits> 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cfloat> 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class T, int expected> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<T>::digits10 == expected, "digits10 test 1"); 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<T>::is_bounded, "digits10 test 5"); 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<const T>::digits10 == expected, "digits10 test 2"); 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<const T>::is_bounded, "digits10 test 6"); 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<volatile T>::digits10 == expected, "digits10 test 3"); 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<volatile T>::is_bounded, "digits10 test 7"); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<const volatile T>::digits10 == expected, "digits10 test 4"); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert(std::numeric_limits<const volatile T>::is_bounded, "digits10 test 8"); 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bool, 0>(); 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<char, 2>(); 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<signed char, 2>(); 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned char, 2>(); 371f96a4df58d4f155725501a0e212157da9df2695Howard Hinnant test<wchar_t, 5*sizeof(wchar_t)/2-1>(); // 4 -> 9 and 2 -> 4 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<char16_t, 4>(); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<char32_t, 9>(); 41cf6dcc35e14a3d2dafe67cf76a200b2e1a671e7dHoward Hinnant#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<short, 4>(); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned short, 4>(); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<int, 9>(); 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned int, 9>(); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<long, sizeof(long) == 4 ? 9 : 18>(); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned long, sizeof(long) == 4 ? 9 : 19>(); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<long long, 18>(); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned long long, 19>(); 508a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf#ifndef _LIBCPP_HAS_NO_INT128 518a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf test<__int128_t, 38>(); 528a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf test<__uint128_t, 38>(); 538a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf#endif 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<float, FLT_DIG>(); 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<double, DBL_DIG>(); 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<long double, LDBL_DIG>(); 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 58