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 // type_traits
11 
12 // function
13 
14 #include <type_traits>
15 
16 template <class T>
test_function_imp()17 void test_function_imp()
18 {
19     static_assert(!std::is_void<T>::value, "");
20 #if _LIBCPP_STD_VER > 11
21     static_assert(!std::is_null_pointer<T>::value, "");
22 #endif
23     static_assert(!std::is_integral<T>::value, "");
24     static_assert(!std::is_floating_point<T>::value, "");
25     static_assert(!std::is_array<T>::value, "");
26     static_assert(!std::is_pointer<T>::value, "");
27     static_assert(!std::is_lvalue_reference<T>::value, "");
28     static_assert(!std::is_rvalue_reference<T>::value, "");
29     static_assert(!std::is_member_object_pointer<T>::value, "");
30     static_assert(!std::is_member_function_pointer<T>::value, "");
31     static_assert(!std::is_enum<T>::value, "");
32     static_assert(!std::is_union<T>::value, "");
33     static_assert(!std::is_class<T>::value, "");
34     static_assert( std::is_function<T>::value, "");
35 }
36 
37 template <class T>
test_function()38 void test_function()
39 {
40     test_function_imp<T>();
41     test_function_imp<const T>();
42     test_function_imp<volatile T>();
43     test_function_imp<const volatile T>();
44 }
45 
main()46 int main()
47 {
48     test_function<void ()>();
49     test_function<void (int)>();
50     test_function<int (double)>();
51     test_function<int (double, char)>();
52 }
53