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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03 10 11 // <filesystem> 12 13 // enum class copy_options; 14 15 #include "filesystem_include.h" 16 #include <type_traits> 17 #include <cassert> 18 19 #include "check_bitmask_types.h" 20 #include "test_macros.h" 21 22 23 constexpr fs::copy_options ME(int val) { return static_cast<fs::copy_options>(val); } 24 25 int main(int, char**) { 26 typedef fs::copy_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 33 LIBCPP_ONLY(static_assert(std::is_same<UT, unsigned short>::value, "")); // Implementation detail 34 35 typedef check_bitmask_type<E, E::skip_existing, E::update_existing> BitmaskTester; 36 assert(BitmaskTester::check()); 37 38 // The standard doesn't specify the numeric values of the enum. 39 LIBCPP_STATIC_ASSERT( 40 E::none == ME(0), 41 "Expected enumeration values do not match"); 42 // Option group for copy_file 43 LIBCPP_STATIC_ASSERT( 44 E::skip_existing == ME(1) && 45 E::overwrite_existing == ME(2) && 46 E::update_existing == ME(4), 47 "Expected enumeration values do not match"); 48 // Option group for copy on directories 49 LIBCPP_STATIC_ASSERT( 50 E::recursive == ME(8), 51 "Expected enumeration values do not match"); 52 // Option group for copy on symlinks 53 LIBCPP_STATIC_ASSERT( 54 E::copy_symlinks == ME(16) && 55 E::skip_symlinks == ME(32), 56 "Expected enumeration values do not match"); 57 // Option group for changing form of copy 58 LIBCPP_STATIC_ASSERT( 59 E::directories_only == ME(64) && 60 E::create_symlinks == ME(128) && 61 E::create_hard_links == ME(256), 62 "Expected enumeration values do not match"); 63 64 return 0; 65 } 66