test/std/language.support/support.types/max_align_t.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include <cstddef>
#include <type_traits>

// max_align_t is a trivial standard-layout type whose alignment requirement
//   is at least as great as that of every scalar type

#include <stdio.h>
#include "test_macros.h"

int main()
{

#if TEST_STD_VER > 17
//  P0767
    static_assert(std::is_trivial<std::max_align_t>::value,
                  "std::is_trivial<std::max_align_t>::value");
    static_assert(std::is_standard_layout<std::max_align_t>::value,
                  "std::is_standard_layout<std::max_align_t>::value");
#else
    static_assert(std::is_pod<std::max_align_t>::value,
                  "std::is_pod<std::max_align_t>::value");
#endif
    static_assert((std::alignment_of<std::max_align_t>::value >=
                  std::alignment_of<long long>::value),
                  "std::alignment_of<std::max_align_t>::value >= "
                  "std::alignment_of<long long>::value");
    static_assert(std::alignment_of<std::max_align_t>::value >=
                  std::alignment_of<long double>::value,
                  "std::alignment_of<std::max_align_t>::value >= "
                  "std::alignment_of<long double>::value");
    static_assert(std::alignment_of<std::max_align_t>::value >=
                  std::alignment_of<void*>::value,
                  "std::alignment_of<std::max_align_t>::value >= "
                  "std::alignment_of<void*>::value");
}