op_and.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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
16template <std::size_t N>
17std::bitset<N>
18make_bitset()
19{
20    std::bitset<N> v;
21    for (std::size_t i = 0; i < N; ++i)
22        v[i] = static_cast<bool>(std::rand() & 1);
23    return v;
24}
25
26template <std::size_t N>
27void test_op_and()
28{
29    std::bitset<N> v1 = make_bitset<N>();
30    std::bitset<N> v2 = make_bitset<N>();
31    std::bitset<N> v3 = v1;
32    assert((v1 & v2) == (v3 &= v2));;
33}
34
35int main()
36{
37    test_op_and<0>();
38    test_op_and<1>();
39    test_op_and<31>();
40    test_op_and<32>();
41    test_op_and<33>();
42    test_op_and<63>();
43    test_op_and<64>();
44    test_op_and<65>();
45    test_op_and<1000>();
46}
47