58 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// ADDITIONAL_COMPILE_FLAGS(has-fconstexpr-steps): -fconstexpr-steps=200000010 11// bitset<N>& operator&=(const bitset<N>& rhs); // constexpr since C++2312 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 limits52#if TEST_STD_VER > 2053 static_assert(test());54#endif55 56 return 0;57}58