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(unsigned long long val);
11 
12 #include <bitset>
13 #include <cassert>
14 #include <algorithm> // for 'min' and 'max'
15 
16 #pragma clang diagnostic ignored "-Wtautological-compare"
17 
18 template <std::size_t N>
test_val_ctor()19 void test_val_ctor()
20 {
21     {
22     _LIBCPP_CONSTEXPR std::bitset<N> v(0xAAAAAAAAAAAAAAAAULL);
23     assert(v.size() == N);
24     unsigned M = std::min<std::size_t>(N, 64);
25     for (std::size_t i = 0; i < M; ++i)
26         assert(v[i] == (i & 1));
27     for (std::size_t i = M; i < N; ++i)
28         assert(v[i] == false);
29     }
30 }
31 
main()32 int main()
33 {
34     test_val_ctor<0>();
35     test_val_ctor<1>();
36     test_val_ctor<31>();
37     test_val_ctor<32>();
38     test_val_ctor<33>();
39     test_val_ctor<63>();
40     test_val_ctor<64>();
41     test_val_ctor<65>();
42     test_val_ctor<1000>();
43 }
44