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#include "test_macros.h"
17
18#if defined(TEST_COMPILER_CLANG)
19#pragma clang diagnostic ignored "-Wtautological-compare"
20#elif defined(TEST_COMPILER_C1XX)
21#pragma warning(disable: 6294) // Ill-defined for-loop:  initial condition does not satisfy test.  Loop body not executed.
22#endif
23
24template <std::size_t N>
25std::bitset<N>
26make_bitset()
27{
28    std::bitset<N> v;
29    for (std::size_t i = 0; i < N; ++i)
30        v[i] = static_cast<bool>(std::rand() & 1);
31    return v;
32}
33
34template <std::size_t N>
35void test_op_or()
36{
37    std::bitset<N> v1 = make_bitset<N>();
38    std::bitset<N> v2 = make_bitset<N>();
39    std::bitset<N> v3 = v1;
40    assert((v1 | v2) == (v3 |= v2));
41}
42
43int main()
44{
45    test_op_or<0>();
46    test_op_or<1>();
47    test_op_or<31>();
48    test_op_or<32>();
49    test_op_or<33>();
50    test_op_or<63>();
51    test_op_or<64>();
52    test_op_or<65>();
53    test_op_or<1000>();
54}
55