gomp-20050608-branch/libstdc++-v3/testsuite/tr1/4_metaprogramming/other_transformations/aligned_storage/aligned_storage.cc

   1 // 2005-01-11  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 4.8 Other transformations
  22
  23 #include <tr1/type_traits>
  24 #include <testsuite_hooks.h>
  25 #include <testsuite_tr1.h>
  26
  27 void test01()
  28 {
  29   bool test __attribute__((unused)) = true;
  30   using std::tr1::aligned_storage;
  31   using std::tr1::alignment_of;
  32   using namespace __gnu_test;
  33
  34   const std::size_t align_c = alignment_of<char>::value;
  35   VERIFY( (sizeof(aligned_storage<4, align_c>::type) >= 4) );
  36   VERIFY( (__alignof__(aligned_storage<4, align_c>::type) == align_c) );
  37
  38   const std::size_t align_s = alignment_of<short>::value;
  39   VERIFY( (sizeof(aligned_storage<1, align_s>::type) >= 1) );
  40   VERIFY( (__alignof__(aligned_storage<1, align_s>::type) == align_s) );
  41
  42   const std::size_t align_i = alignment_of<int>::value;
  43   VERIFY( (sizeof(aligned_storage<7, align_i>::type) >= 7) );
  44   VERIFY( (__alignof__(aligned_storage<7, align_i>::type) == align_i) );
  45
  46   const std::size_t align_d = alignment_of<double>::value;
  47   VERIFY( (sizeof(aligned_storage<2, align_d>::type) >= 2) );
  48   VERIFY( (__alignof__(aligned_storage<2, align_d>::type) == align_d) );
  49
  50   const std::size_t align_ai = alignment_of<int[4]>::value;
  51   VERIFY( (sizeof(aligned_storage<20, align_ai>::type) >= 20) );
  52   VERIFY( (__alignof__(aligned_storage<20, align_ai>::type) == align_ai) );
  53
  54   const std::size_t align_ct = alignment_of<ClassType>::value;
  55   VERIFY( (sizeof(aligned_storage<11, align_ct>::type) >= 11) );
  56   VERIFY( (__alignof__(aligned_storage<11, align_ct>::type) == align_ct) );
  57 }
  58
  59 int main()
  60 {
  61   test01();
  62   return 0;
  63 }