1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // type_traits
10
11 // nullptr_t
12 // is_null_pointer
13
14 // UNSUPPORTED: c++03, c++11
15
16 #include <type_traits>
17 #include <cstddef> // for std::nullptr_t
18
19 #include "test_macros.h"
20
21 template <class T>
test_nullptr_imp()22 void test_nullptr_imp()
23 {
24 static_assert(!std::is_void<T>::value, "");
25 static_assert( std::is_null_pointer<T>::value, "");
26 static_assert(!std::is_integral<T>::value, "");
27 static_assert(!std::is_floating_point<T>::value, "");
28 static_assert(!std::is_array<T>::value, "");
29 static_assert(!std::is_pointer<T>::value, "");
30 static_assert(!std::is_lvalue_reference<T>::value, "");
31 static_assert(!std::is_rvalue_reference<T>::value, "");
32 static_assert(!std::is_member_object_pointer<T>::value, "");
33 static_assert(!std::is_member_function_pointer<T>::value, "");
34 static_assert(!std::is_enum<T>::value, "");
35 static_assert(!std::is_union<T>::value, "");
36 static_assert(!std::is_class<T>::value, "");
37 static_assert(!std::is_function<T>::value, "");
38 }
39
40 template <class T>
test_nullptr()41 void test_nullptr()
42 {
43 test_nullptr_imp<T>();
44 test_nullptr_imp<const T>();
45 test_nullptr_imp<volatile T>();
46 test_nullptr_imp<const volatile T>();
47 }
48
49 struct incomplete_type;
50
main(int,char **)51 int main(int, char**)
52 {
53 test_nullptr<std::nullptr_t>();
54
55 // LWG#2582
56 static_assert(!std::is_null_pointer<incomplete_type>::value, "");
57 return 0;
58 }
59