enum.copy_options.pass.cpp (2038B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // UNSUPPORTED: c++98, c++03 11 12 // <filesystem> 13 14 // enum class copy_options; 15 16 #include "filesystem_include.hpp" 17 #include <type_traits> 18 #include <cassert> 19 20 #include "check_bitmask_types.hpp" 21 #include "test_macros.h" 22 23 24 constexpr fs::copy_options ME(int val) { return static_cast<fs::copy_options>(val); } 25 26 int main() { 27 typedef fs::copy_options E; 28 static_assert(std::is_enum<E>::value, ""); 29 30 // Check that E is a scoped enum by checking for conversions. 31 typedef std::underlying_type<E>::type UT; 32 static_assert(!std::is_convertible<E, UT>::value, ""); 33 34 static_assert(std::is_same<UT, unsigned short>::value, ""); // Implementation detail 35 36 typedef check_bitmask_type<E, E::skip_existing, E::update_existing> BitmaskTester; 37 assert(BitmaskTester::check()); 38 39 static_assert( 40 E::none == ME(0), 41 "Expected enumeration values do not match"); 42 // Option group for copy_file 43 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 static_assert( 50 E::recursive == ME(8), 51 "Expected enumeration values do not match"); 52 // Option group for copy on symlinks 53 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 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 }