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// size_t count() const; // constexpr since C++23
10
11#include <bitset>
12#include <cassert>
13
14#include "test_macros.h"
15
16template <std::size_t N>
17TEST_CONSTEXPR_CXX23 void test_size() {
18 const std::bitset<N> v;
19 assert(v.size() == N);
20}
21
22TEST_CONSTEXPR_CXX23 bool test() {
23 test_size<0>();
24 test_size<1>();
25 test_size<31>();
26 test_size<32>();
27 test_size<33>();
28 test_size<63>();
29 test_size<64>();
30 test_size<65>();
31 test_size<1000>();
32
33 return true;
34}
35
36int main(int, char**) {
37 test();
38#if TEST_STD_VER > 20
39 static_assert(test());
40#endif
41
42 return 0;
43}
44

source code of libcxx/test/std/utilities/template.bitset/bitset.members/size.pass.cpp