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 // is_standard_layout
13
14 #include <type_traits>
15
16 template <class T>
test_is_standard_layout()17 void test_is_standard_layout()
18 {
19 static_assert( std::is_standard_layout<T>::value, "");
20 static_assert( std::is_standard_layout<const T>::value, "");
21 static_assert( std::is_standard_layout<volatile T>::value, "");
22 static_assert( std::is_standard_layout<const volatile T>::value, "");
23 }
24
25 template <class T>
test_is_not_standard_layout()26 void test_is_not_standard_layout()
27 {
28 static_assert(!std::is_standard_layout<T>::value, "");
29 static_assert(!std::is_standard_layout<const T>::value, "");
30 static_assert(!std::is_standard_layout<volatile T>::value, "");
31 static_assert(!std::is_standard_layout<const volatile T>::value, "");
32 }
33
34 template <class T1, class T2>
35 struct pair
36 {
37 T1 first;
38 T2 second;
39 };
40
main()41 int main()
42 {
43 test_is_standard_layout<int> ();
44 test_is_standard_layout<int[3]> ();
45 test_is_standard_layout<pair<int, double> > ();
46
47 test_is_not_standard_layout<int&> ();
48 }
49