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 #if defined(__clang__)
18 #pragma clang diagnostic ignored "-Wtautological-compare"
19 #endif
20 
21 template <std::size_t N>
22 std::bitset<N>
23 make_bitset()
24 {
25     std::bitset<N> v;
26     for (std::size_t i = 0; i < N; ++i)
27         v[i] = static_cast<bool>(std::rand() & 1);
28     return v;
29 }
30 
31 template <std::size_t N>
32 void test_test()
33 {
34     const std::bitset<N> v1 = make_bitset<N>();
35     try
36     {
37         bool b = v1.test(50);
38         if (50 >= v1.size())
39             assert(false);
40         assert(b == v1[50]);
41     }
42     catch (std::out_of_range&)
43     {
44     }
45 }
46 
47 int main()
48 {
49     test_test<0>();
50     test_test<1>();
51     test_test<31>();
52     test_test<32>();
53     test_test<33>();
54     test_test<63>();
55     test_test<64>();
56     test_test<65>();
57     test_test<1000>();
58 }
59