1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// type_traits
// nullptr_t
// is_null_pointer
#include <type_traits>
#include <cstddef> // for std::nullptr_t
#if _LIBCPP_STD_VER > 11
template <class T>
void test_nullptr_imp()
{
static_assert(!std::is_void<T>::value, "");
static_assert( std::is_null_pointer<T>::value, "");
static_assert(!std::is_integral<T>::value, "");
static_assert(!std::is_floating_point<T>::value, "");
static_assert(!std::is_array<T>::value, "");
static_assert(!std::is_pointer<T>::value, "");
static_assert(!std::is_lvalue_reference<T>::value, "");
static_assert(!std::is_rvalue_reference<T>::value, "");
static_assert(!std::is_member_object_pointer<T>::value, "");
static_assert(!std::is_member_function_pointer<T>::value, "");
static_assert(!std::is_enum<T>::value, "");
static_assert(!std::is_union<T>::value, "");
static_assert(!std::is_class<T>::value, "");
static_assert(!std::is_function<T>::value, "");
}
template <class T>
void test_nullptr()
{
test_nullptr_imp<T>();
test_nullptr_imp<const T>();
test_nullptr_imp<volatile T>();
test_nullptr_imp<const volatile T>();
}
int main()
{
test_nullptr<std::nullptr_t>();
}
#else
int main() {}
#endif
|
