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 // denorm_min()
13 
14 #include <limits>
15 #include <cassert>
16 
17 template <class T>
18 void
19 test(T expected)
20 {
21     assert(std::numeric_limits<T>::denorm_min() == expected);
22     assert(std::numeric_limits<const T>::denorm_min() == expected);
23     assert(std::numeric_limits<volatile T>::denorm_min() == expected);
24     assert(std::numeric_limits<const volatile T>::denorm_min() == expected);
25 }
26 
27 int main()
28 {
29     test<bool>(false);
30     test<char>(0);
31     test<signed char>(0);
32     test<unsigned char>(0);
33     test<wchar_t>(0);
34 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
35     test<char16_t>(0);
36     test<char32_t>(0);
37 #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
38     test<short>(0);
39     test<unsigned short>(0);
40     test<int>(0);
41     test<unsigned int>(0);
42     test<long>(0);
43     test<unsigned long>(0);
44     test<long long>(0);
45     test<unsigned long long>(0);
46     test<float>(__FLT_DENORM_MIN__);
47     test<double>(__DBL_DENORM_MIN__);
48     test<long double>(__LDBL_DENORM_MIN__);
49 }
50