56 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// bitset<N>& set(size_t pos, bool val = true); // constexpr since C++2310 11#include <bitset>12#include <cassert>13#include <cstddef>14#include <vector>15 16#include "../bitset_test_cases.h"17#include "test_macros.h"18 19template <std::size_t N>20TEST_CONSTEXPR_CXX23 void test_set_one() {21 std::vector<std::bitset<N> > const cases = get_test_cases<N>();22 for (std::size_t c = 0; c != cases.size(); ++c) {23 std::bitset<N> v = cases[c];24 if (v.size() > 0) {25 std::size_t middle = v.size() / 2;26 v.set(middle);27 assert(v[middle] == true);28 v.set(middle, false);29 assert(v[middle] == false);30 }31 }32}33 34TEST_CONSTEXPR_CXX23 bool test() {35 test_set_one<0>();36 test_set_one<1>();37 test_set_one<31>();38 test_set_one<32>();39 test_set_one<33>();40 test_set_one<63>();41 test_set_one<64>();42 test_set_one<65>();43 44 return true;45}46 47int main(int, char**) {48 test();49 test_set_one<1000>(); // not in constexpr because of constexpr evaluation step limits50#if TEST_STD_VER > 2051 static_assert(test());52#endif53 54 return 0;55}56