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// ADDITIONAL_COMPILE_FLAGS(has-fconstexpr-steps): -fconstexpr-steps=2000000
10
11// bitset<N>& operator&=(const bitset<N>& rhs); // constexpr since C++23
12
13#include <bitset>
14#include <cassert>
15#include <cstddef>
16#include <vector>
17
18#include "../bitset_test_cases.h"
19#include "test_macros.h"
20
21template <std::size_t N>
22TEST_CONSTEXPR_CXX23 void test_op_and_eq() {
23 std::vector<std::bitset<N> > const cases = get_test_cases<N>();
24 for (std::size_t c1 = 0; c1 != cases.size(); ++c1) {
25 for (std::size_t c2 = 0; c2 != cases.size(); ++c2) {
26 std::bitset<N> v1 = cases[c1];
27 std::bitset<N> v2 = cases[c2];
28 std::bitset<N> v3 = v1;
29 v1 &= v2;
30 for (std::size_t i = 0; i < v1.size(); ++i)
31 assert(v1[i] == (v3[i] && v2[i]));
32 }
33 }
34}
35
36TEST_CONSTEXPR_CXX23 bool test() {
37 test_op_and_eq<0>();
38 test_op_and_eq<1>();
39 test_op_and_eq<31>();
40 test_op_and_eq<32>();
41 test_op_and_eq<33>();
42 test_op_and_eq<63>();
43 test_op_and_eq<64>();
44 test_op_and_eq<65>();
45
46 return true;
47}
48
49int main(int, char**) {
50 test();
51 test_op_and_eq<1000>(); // not in constexpr because of constexpr evaluation step limits
52#if TEST_STD_VER > 20
53 static_assert(test());
54#endif
55
56 return 0;
57}
58

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