op_and_eq.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
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>& 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_eq()
28{
29    std::bitset<N> v1 = make_bitset<N>();
30    std::bitset<N> v2 = make_bitset<N>();
31    std::bitset<N> v3 = v1;
32    v1 &= v2;
33    for (std::size_t i = 0; i < N; ++i)
34        assert(v1[i] == (v3[i] && v2[i]));
35}
36
37int main()
38{
39    test_op_and_eq<0>();
40    test_op_and_eq<1>();
41    test_op_and_eq<31>();
42    test_op_and_eq<32>();
43    test_op_and_eq<33>();
44    test_op_and_eq<63>();
45    test_op_and_eq<64>();
46    test_op_and_eq<65>();
47    test_op_and_eq<1000>();
48}
49