46 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// UNSUPPORTED: c++03, c++11, c++1410 11// <filesystem>12 13// enum class directory_options;14 15#include <filesystem>16#include <type_traits>17#include <cassert>18 19#include "test_macros.h"20#include "check_bitmask_types.h"21namespace fs = std::filesystem;22 23constexpr fs::directory_options ME(int val) { return static_cast<fs::directory_options>(val); }24 25int main(int, char**) {26 typedef fs::directory_options E;27 static_assert(std::is_enum<E>::value, "");28 29 // Check that E is a scoped enum by checking for conversions.30 typedef std::underlying_type<E>::type UT;31 static_assert(!std::is_convertible<E, UT>::value, "");32 LIBCPP_STATIC_ASSERT(std::is_same<UT, unsigned char>::value, "");33 34 typedef check_bitmask_type<E, E::follow_directory_symlink, E::skip_permission_denied> BitmaskTester;35 assert(BitmaskTester::check());36 37 static_assert(38 E::none == ME(0) &&39 E::follow_directory_symlink == ME(1) &&40 E::skip_permission_denied == ME(2),41 "Expected enumeration values do not match");42 43 44 return 0;45}46