1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
//===----------------------------------------------------------------------===//
//
// 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;
}
|
