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 // XFAIL: libcpp-no-exceptions
11 // test constexpr bool test(size_t pos) const;
12 
13 #include <bitset>
14 #include <cstdlib>
15 #include <cassert>
16 
17 template <std::size_t N>
18 std::bitset<N>
19 make_bitset()
20 {
21     std::bitset<N> v;
22     for (std::size_t i = 0; i < N; ++i)
23         v[i] = static_cast<bool>(std::rand() & 1);
24     return v;
25 }
26 
27 template <std::size_t N>
28 void test_test()
29 {
30     const std::bitset<N> v1 = make_bitset<N>();
31     try
32     {
33         bool b = v1.test(50);
34         if (50 >= v1.size())
35             assert(false);
36         assert(b == v1[50]);
37     }
38     catch (std::out_of_range&)
39     {
40     }
41 }
42 
43 int main()
44 {
45     test_test<0>();
46     test_test<1>();
47     test_test<31>();
48     test_test<32>();
49     test_test<33>();
50     test_test<63>();
51     test_test<64>();
52     test_test<65>();
53     test_test<1000>();
54 }
55