9737e1531669084e2729d881d28ba29c6e753b4c
[platform/framework/web/crosswalk.git] / src / third_party / libc++ / trunk / test / utilities / meta / meta.unary / meta.unary.prop / is_signed.pass.cpp
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_signed
13
14 #include <type_traits>
15
16 template <class T>
17 void test_is_signed()
18 {
19     static_assert( std::is_signed<T>::value, "");
20     static_assert( std::is_signed<const T>::value, "");
21     static_assert( std::is_signed<volatile T>::value, "");
22     static_assert( std::is_signed<const volatile T>::value, "");
23 }
24
25 template <class T>
26 void test_is_not_signed()
27 {
28     static_assert(!std::is_signed<T>::value, "");
29     static_assert(!std::is_signed<const T>::value, "");
30     static_assert(!std::is_signed<volatile T>::value, "");
31     static_assert(!std::is_signed<const volatile T>::value, "");
32 }
33
34 class Class
35 {
36 public:
37     ~Class();
38 };
39
40 int main()
41 {
42     test_is_not_signed<void>();
43     test_is_not_signed<int&>();
44     test_is_not_signed<Class>();
45     test_is_not_signed<int*>();
46     test_is_not_signed<const int*>();
47     test_is_not_signed<char[3]>();
48     test_is_not_signed<char[3]>();
49     test_is_not_signed<bool>();
50     test_is_not_signed<unsigned>();
51
52     test_is_signed<int>();
53     test_is_signed<double>();
54 }