ac8c9f1e39
<filesystem> is a C++17 addition. In C++11 and C++14 modes, we actually have all the code for <filesystem> but it is hidden behind a non-inline namespace __fs so it is not accessible. Instead of doing this unusual dance, just guard the code for filesystem behind a classic C++17 check like we normally do.
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14
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// <filesystem>
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// enum class copy_options;
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#include <filesystem>
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#include <type_traits>
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#include <cassert>
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#include "check_bitmask_types.h"
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#include "test_macros.h"
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namespace fs = std::filesystem;
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constexpr fs::copy_options ME(int val) { return static_cast<fs::copy_options>(val); }
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int main(int, char**) {
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typedef fs::copy_options E;
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static_assert(std::is_enum<E>::value, "");
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// Check that E is a scoped enum by checking for conversions.
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typedef std::underlying_type<E>::type UT;
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static_assert(!std::is_convertible<E, UT>::value, "");
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LIBCPP_ONLY(static_assert(std::is_same<UT, unsigned short>::value, "")); // Implementation detail
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typedef check_bitmask_type<E, E::skip_existing, E::update_existing> BitmaskTester;
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assert(BitmaskTester::check());
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// The standard doesn't specify the numeric values of the enum.
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LIBCPP_STATIC_ASSERT(
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E::none == ME(0),
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"Expected enumeration values do not match");
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// Option group for copy_file
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LIBCPP_STATIC_ASSERT(
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E::skip_existing == ME(1) &&
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E::overwrite_existing == ME(2) &&
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E::update_existing == ME(4),
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"Expected enumeration values do not match");
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// Option group for copy on directories
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LIBCPP_STATIC_ASSERT(
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E::recursive == ME(8),
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"Expected enumeration values do not match");
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// Option group for copy on symlinks
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LIBCPP_STATIC_ASSERT(
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E::copy_symlinks == ME(16) &&
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E::skip_symlinks == ME(32),
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"Expected enumeration values do not match");
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// Option group for changing form of copy
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LIBCPP_STATIC_ASSERT(
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E::directories_only == ME(64) &&
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E::create_symlinks == ME(128) &&
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E::create_hard_links == ME(256),
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"Expected enumeration values do not match");
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return 0;
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}
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