54 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// bool test(size_t pos) const; // 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_test() {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> const v = cases[c];24 if (v.size() > 0) {25 std::size_t middle = v.size() / 2;26 bool b = v.test(middle);27 assert(b == v[middle]);28 }29 }30}31 32TEST_CONSTEXPR_CXX23 bool test() {33 test_test<0>();34 test_test<1>();35 test_test<31>();36 test_test<32>();37 test_test<33>();38 test_test<63>();39 test_test<64>();40 test_test<65>();41 42 return true;43}44 45int main(int, char**) {46 test();47 test_test<1000>(); // not in constexpr because of constexpr evaluation step limits48#if TEST_STD_VER > 2049 static_assert(test());50#endif51 52 return 0;53}54