| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // enum class align_val_t : size_t {} |
| |
| // UNSUPPORTED: c++03, c++11, c++14 |
| |
| // Libc++ when built for z/OS doesn't contain the aligned allocation functions, |
| // nor does the dynamic library shipped with z/OS. |
| // XFAIL: target={{.+}}-zos{{.*}} |
| |
| #include <new> |
| #include <cassert> |
| #include <cstddef> |
| #include <string> |
| #include <type_traits> |
| #include <typeinfo> |
| |
| #include "test_macros.h" |
| |
| constexpr bool test() { |
| static_assert(std::is_enum<std::align_val_t>::value, ""); |
| static_assert(std::is_same<std::underlying_type<std::align_val_t>::type, std::size_t>::value, ""); |
| static_assert(!std::is_constructible<std::align_val_t, std::size_t>::value, ""); |
| static_assert(!std::is_constructible<std::size_t, std::align_val_t>::value, ""); |
| |
| { |
| auto a = std::align_val_t(0); |
| auto b = std::align_val_t(32); |
| auto c = std::align_val_t(-1); |
| assert(a != b); |
| assert(a == std::align_val_t(0)); |
| assert(b == std::align_val_t(32)); |
| assert(static_cast<std::size_t>(c) == static_cast<std::size_t>(-1)); |
| } |
| |
| return true; |
| } |
| |
| int main(int, char**) { |
| test(); |
| static_assert(test(), ""); |
| |
| #if defined(_LIBCPP_VERSION) && !defined(TEST_HAS_NO_RTTI) |
| { |
| // Check that libc++ doesn't define align_val_t in a versioning namespace. |
| // And that it mangles the same in C++03 through C++17 |
| # ifdef _MSC_VER |
| // MSVC uses a different C++ ABI with a different name mangling scheme. |
| // The type id name doesn't seem to contain the mangled form at all. |
| assert(typeid(std::align_val_t).name() == std::string("enum std::align_val_t")); |
| # else |
| assert(typeid(std::align_val_t).name() == std::string("St11align_val_t")); |
| # endif |
| } |
| #endif |
| |
| return 0; |
| } |