1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // test numeric_limits 11 12 // max() 13 14 #include <limits> 15 #include <climits> 16 #include <cwchar> 17 #include <cfloat> 18 #include <cassert> 19 20 template <class T> 21 void test(T expected)22test(T expected) 23 { 24 assert(std::numeric_limits<T>::max() == expected); 25 assert(std::numeric_limits<T>::is_bounded); 26 assert(std::numeric_limits<const T>::max() == expected); 27 assert(std::numeric_limits<const T>::is_bounded); 28 assert(std::numeric_limits<volatile T>::max() == expected); 29 assert(std::numeric_limits<volatile T>::is_bounded); 30 assert(std::numeric_limits<const volatile T>::max() == expected); 31 assert(std::numeric_limits<const volatile T>::is_bounded); 32 } 33 main()34int main() 35 { 36 test<bool>(true); 37 test<char>(CHAR_MAX); 38 test<signed char>(SCHAR_MAX); 39 test<unsigned char>(UCHAR_MAX); 40 test<wchar_t>(WCHAR_MAX); 41 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 42 test<char16_t>(USHRT_MAX); 43 test<char32_t>(UINT_MAX); 44 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 45 test<short>(SHRT_MAX); 46 test<unsigned short>(USHRT_MAX); 47 test<int>(INT_MAX); 48 test<unsigned int>(UINT_MAX); 49 test<long>(LONG_MAX); 50 test<unsigned long>(ULONG_MAX); 51 test<long long>(LLONG_MAX); 52 test<unsigned long long>(ULLONG_MAX); 53 #ifndef _LIBCPP_HAS_NO_INT128 54 test<__int128_t>(__int128_t(__uint128_t(-1)/2)); 55 test<__uint128_t>(__uint128_t(-1)); 56 #endif 57 test<float>(FLT_MAX); 58 test<double>(DBL_MAX); 59 test<long double>(LDBL_MAX); 60 } 61