libstdc++-v3/testsuite/tr1/4_metaprogramming/aligned_storage/value.cc

   1 // 2005-01-11  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 4.8 Other transformations
  21
  22 #include <tr1/type_traits>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_tr1.h>
  25
  26 void test01()
  27 {
  28   using std::tr1::aligned_storage;
  29   using std::tr1::alignment_of;
  30   using namespace __gnu_test;
  31
  32   const std::size_t align_c = alignment_of<char>::value;
  33   VERIFY( (sizeof(aligned_storage<4, align_c>::type) >= 4) );
  34   VERIFY( (__alignof__(aligned_storage<4, align_c>::type) == align_c) );
  35
  36   const std::size_t align_s = alignment_of<short>::value;
  37   VERIFY( (sizeof(aligned_storage<1, align_s>::type) >= 1) );
  38   VERIFY( (__alignof__(aligned_storage<1, align_s>::type) == align_s) );
  39
  40   const std::size_t align_i = alignment_of<int>::value;
  41   VERIFY( (sizeof(aligned_storage<7, align_i>::type) >= 7) );
  42   VERIFY( (__alignof__(aligned_storage<7, align_i>::type) == align_i) );
  43
  44   const std::size_t align_d = alignment_of<double>::value;
  45   VERIFY( (sizeof(aligned_storage<2, align_d>::type) >= 2) );
  46   VERIFY( (__alignof__(aligned_storage<2, align_d>::type) == align_d) );
  47
  48   const std::size_t align_ai = alignment_of<int[4]>::value;
  49   VERIFY( (sizeof(aligned_storage<20, align_ai>::type) >= 20) );
  50   VERIFY( (__alignof__(aligned_storage<20, align_ai>::type) == align_ai) );
  51
  52   const std::size_t align_ct = alignment_of<ClassType>::value;
  53   VERIFY( (sizeof(aligned_storage<11, align_ct>::type) >= 11) );
  54   VERIFY( (__alignof__(aligned_storage<11, align_ct>::type) == align_ct) );
  55 }
  56
  57 int main()
  58 {
  59   test01();
  60   return 0;
  61 }