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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 20_util / aligned_storage / value.cc

// { dg-do compile { target c++11 } }
// 2007-09-17  Paolo Carlini  <pcarlini@suse.de>
//
// Copyright (C) 2007-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

#include <type_traits>
#include <testsuite_tr1.h>

struct MSAlignType { } __attribute__((__aligned__));  

void test01()
{
  using std::aligned_storage;
  using std::alignment_of;
  using namespace __gnu_test;
  
  const std::size_t align_c = alignment_of<char>::value;
  static_assert(sizeof(aligned_storage<4, align_c>::type) >= 4, "");
  static_assert(__alignof__(aligned_storage<4, align_c>::type) == align_c, "");

  const std::size_t align_s = alignment_of<short>::value;
  static_assert(sizeof(aligned_storage<1, align_s>::type) >= 1, "");
  static_assert(__alignof__(aligned_storage<1, align_s>::type) == align_s, "");

  const std::size_t align_i = alignment_of<int>::value;
  static_assert(sizeof(aligned_storage<7, align_i>::type) >= 7, "");
  static_assert(__alignof__(aligned_storage<7, align_i>::type) == align_i, "");

  const std::size_t align_d = alignment_of<double>::value;
  static_assert(sizeof(aligned_storage<2, align_d>::type) >= 2, "");
  static_assert(__alignof__(aligned_storage<2, align_d>::type) == align_d, "");

  const std::size_t align_ai = alignment_of<int[4]>::value;
  static_assert(sizeof(aligned_storage<20, align_ai>::type) >= 20, "");
  static_assert(__alignof__(aligned_storage<20, align_ai>::type) == align_ai,
		"");

  const std::size_t align_ct = alignment_of<ClassType>::value;
  static_assert(sizeof(aligned_storage<11, align_ct>::type) >= 11, "");
  static_assert(__alignof__(aligned_storage<11, align_ct>::type) == align_ct,
		"");

  const std::size_t align_msa = alignment_of<MSAlignType>::value;
  static_assert(sizeof(aligned_storage<5>::type) >= 5, "");
  static_assert(__alignof__(aligned_storage<5>::type) == align_msa, "");
}