transparent.pass.cpp revision 98760c18f85bafd98dde7a309e1b0e677abd47d8 
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#include <functional>
11#include <string>
12
13template <class _Tp>
14struct is_transparent
15{
16private:
17    struct __two {char __lx; char __lxx;};
18    template <class _Up> static __two __test(...);
19    template <class _Up> static char __test(typename _Up::is_transparent* = 0);
20public:
21    static const bool value = sizeof(__test<_Tp>(0)) == 1;
22};
23
24
25int main () {
26#if _LIBCPP_STD_VER > 11
27
28    static_assert ( !is_transparent<std::bit_and<int>>::value, "" );
29    static_assert ( !is_transparent<std::bit_and<std::string>>::value, "" );
30    static_assert (  is_transparent<std::bit_and<void>>::value, "" );
31    static_assert (  is_transparent<std::bit_and<>>::value, "" );
32
33    static_assert ( !is_transparent<std::bit_or<int>>::value, "" );
34    static_assert ( !is_transparent<std::bit_or<std::string>>::value, "" );
35    static_assert (  is_transparent<std::bit_or<void>>::value, "" );
36    static_assert (  is_transparent<std::bit_or<>>::value, "" );
37
38    static_assert ( !is_transparent<std::bit_xor<int>>::value, "" );
39    static_assert ( !is_transparent<std::bit_xor<std::string>>::value, "" );
40    static_assert (  is_transparent<std::bit_xor<void>>::value, "" );
41    static_assert (  is_transparent<std::bit_xor<>>::value, "" );
42
43    static_assert ( !is_transparent<std::bit_not<int>>::value, "" );
44    static_assert ( !is_transparent<std::bit_not<std::string>>::value, "" );
45    static_assert (  is_transparent<std::bit_not<void>>::value, "" );
46    static_assert (  is_transparent<std::bit_not<>>::value, "" );
47
48#endif
49
50    return 0;
51    }
52