1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
14 // UNSUPPORTED: c++98, c++03, c++11, c++14
16 // XFAIL: gcc-5.1, gcc-5.2
18 #include <type_traits>
23 static_assert( std::is_same<void, std::void_t<T>>::value, "");
24 static_assert( std::is_same<void, std::void_t<const T>>::value, "");
25 static_assert( std::is_same<void, std::void_t<volatile T>>::value, "");
26 static_assert( std::is_same<void, std::void_t<const volatile T>>::value, "");
29 template <class T, class U>
32 static_assert( std::is_same<void, std::void_t<T, U>>::value, "");
33 static_assert( std::is_same<void, std::void_t<const T, U>>::value, "");
34 static_assert( std::is_same<void, std::void_t<volatile T, U>>::value, "");
35 static_assert( std::is_same<void, std::void_t<const volatile T, U>>::value, "");
37 static_assert( std::is_same<void, std::void_t<T, const U>>::value, "");
38 static_assert( std::is_same<void, std::void_t<const T, const U>>::value, "");
39 static_assert( std::is_same<void, std::void_t<volatile T, const U>>::value, "");
40 static_assert( std::is_same<void, std::void_t<const volatile T, const U>>::value, "");
51 static_assert( std::is_same<void, std::void_t<>>::value, "");
64 test2<Class&, bool>();
65 test2<void *, int&>();
67 static_assert( std::is_same<void, std::void_t<int, double const &, Class, volatile int[], void>>::value, "");