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 // test bitset<N> operator|(const bitset<N>& lhs, const bitset<N>& rhs);
11 
12 #include <bitset>
13 #include <cstdlib>
14 #include <cassert>
15 
16 #pragma clang diagnostic ignored "-Wtautological-compare"
17 
18 template <std::size_t N>
19 std::bitset<N>
make_bitset()20 make_bitset()
21 {
22     std::bitset<N> v;
23     for (std::size_t i = 0; i < N; ++i)
24         v[i] = static_cast<bool>(std::rand() & 1);
25     return v;
26 }
27 
28 template <std::size_t N>
test_op_or()29 void test_op_or()
30 {
31     std::bitset<N> v1 = make_bitset<N>();
32     std::bitset<N> v2 = make_bitset<N>();
33     std::bitset<N> v3 = v1;
34     assert((v1 | v2) == (v3 |= v2));;
35 }
36 
main()37 int main()
38 {
39     test_op_or<0>();
40     test_op_or<1>();
41     test_op_or<31>();
42     test_op_or<32>();
43     test_op_or<33>();
44     test_op_or<63>();
45     test_op_or<64>();
46     test_op_or<65>();
47     test_op_or<1000>();
48 }
49