bit_not.pass.cpp revision 9738cafa4f5c5ce19cd674e7e8c38376eaac8abe 
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// <functional>
11
12// bit_not
13
14#include <functional>
15#include <type_traits>
16#include <cassert>
17
18int main()
19{
20#if _LIBCPP_STD_VER > 11
21    typedef std::bit_not<int> F;
22    const F f = F();
23    static_assert((std::is_base_of<std::unary_function<int, int>, F>::value), "");
24    assert((f(0xEA95) & 0xFFFF ) == 0x156A);
25    assert((f(0x58D3) & 0xFFFF ) == 0xA72C);
26    assert((f(0)      & 0xFFFF ) == 0xFFFF);
27    assert((f(0xFFFF) & 0xFFFF ) == 0);
28
29    typedef std::bit_not<> F2;
30    const F2 f2 = F2();
31    assert((f2(0xEA95)  & 0xFFFF ) == 0x156A);
32    assert((f2(0xEA95L) & 0xFFFF ) == 0x156A);
33    assert((f2(0x58D3)  & 0xFFFF ) == 0xA72C);
34    assert((f2(0x58D3L) & 0xFFFF ) == 0xA72C);
35    assert((f2(0)       & 0xFFFF ) == 0xFFFF);
36    assert((f2(0L)      & 0xFFFF ) == 0xFFFF);
37    assert((f2(0xFFFF)  & 0xFFFF ) == 0);
38    assert((f2(0xFFFFL)  & 0xFFFF ) == 0);
39
40    constexpr int foo = std::bit_not<int> () (0xEA95) & 0xFFFF;
41    static_assert ( foo == 0x156A, "" );
42
43    constexpr int bar = std::bit_not<> () (0xEA95) & 0xFFFF;
44    static_assert ( bar == 0x156A, "" );
45#endif
46}
47