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 // decay
13
14 #include <type_traits>
15
16 #include "test_macros.h"
17
18 template <class T, class U>
test_decay()19 void test_decay()
20 {
21 static_assert((std::is_same<typename std::decay<T>::type, U>::value), "");
22 #if TEST_STD_VER > 11
23 static_assert((std::is_same<std::decay_t<T>, U>::value), "");
24 #endif
25 }
26
main()27 int main()
28 {
29 test_decay<void, void>();
30 test_decay<int, int>();
31 test_decay<const volatile int, int>();
32 test_decay<int*, int*>();
33 test_decay<int[3], int*>();
34 test_decay<const int[3], const int*>();
35 test_decay<void(), void (*)()>();
36 #if TEST_STD_VER > 11
37 test_decay<int(int) const, int(int) const>();
38 test_decay<int(int) volatile, int(int) volatile>();
39 test_decay<int(int) &, int(int) &>();
40 test_decay<int(int) &&, int(int) &&>();
41 #endif
42 }
43