xref: /llvm-project/libcxx/test/std/utilities/template.bitset/bitset.cons/default.pass.cpp (revision f02120fba28f2352fd9396683892fc6671caa137)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // default ctor
10 
11 #include <bitset>
12 #include <cassert>
13 
14 #include "test_macros.h"
15 
16 template <std::size_t N>
test_default_ctor()17 TEST_CONSTEXPR_CXX23 void test_default_ctor()
18 {
19     {
20         TEST_CONSTEXPR std::bitset<N> v1;
21         assert(v1.size() == N);
22         for (std::size_t i = 0; i < v1.size(); ++i)
23             assert(v1[i] == false);
24     }
25 #if TEST_STD_VER >= 11
26     {
27         constexpr std::bitset<N> v1;
28         static_assert(v1.size() == N, "");
29     }
30 #endif
31 }
32 
test()33 TEST_CONSTEXPR_CXX23 bool test() {
34   test_default_ctor<0>();
35   test_default_ctor<1>();
36   test_default_ctor<31>();
37   test_default_ctor<32>();
38   test_default_ctor<33>();
39   test_default_ctor<63>();
40   test_default_ctor<64>();
41   test_default_ctor<65>();
42   test_default_ctor<1000>();
43 
44   return true;
45 }
46 
main(int,char **)47 int main(int, char**)
48 {
49   test();
50 #if TEST_STD_VER > 20
51   static_assert(test());
52 #endif
53 
54   return 0;
55 }
56