ceph/src/boost/libs/align/test/aligned_alloc_test.cpp

   1 /*
   2 (c) 2014 Glen Joseph Fernandes
   3 <glenjofe -at- gmail.com>
   4
   5 Distributed under the Boost Software
   6 License, Version 1.0.
   7 http://boost.org/LICENSE_1_0.txt
   8 */
   9 #include <boost/align/aligned_alloc.hpp>
  10 #include <boost/align/is_aligned.hpp>
  11 #include <boost/core/lightweight_test.hpp>
  12 #include <cstring>
  13
  14 void test(std::size_t alignment)
  15 {
  16     {
  17         void* p = boost::alignment::aligned_alloc(alignment,
  18             alignment);
  19         BOOST_TEST(p != 0);
  20         BOOST_TEST(boost::alignment::is_aligned(p, alignment));
  21         std::memset(p, 0, 1);
  22         boost::alignment::aligned_free(p);
  23     }
  24     {
  25         void* p = boost::alignment::aligned_alloc(alignment,
  26             alignment + 1);
  27         BOOST_TEST(p != 0);
  28         BOOST_TEST(boost::alignment::is_aligned(p, alignment));
  29         std::memset(p, 0, 1);
  30         boost::alignment::aligned_free(p);
  31     }
  32     if (alignment > 1) {
  33         void* p = boost::alignment::aligned_alloc(alignment,
  34             alignment - 1);
  35         BOOST_TEST(p != 0);
  36         BOOST_TEST(boost::alignment::is_aligned(p, alignment));
  37         std::memset(p, 0, 1);
  38         boost::alignment::aligned_free(p);
  39     } else {
  40         void* p = boost::alignment::aligned_alloc(alignment, 0);
  41         boost::alignment::aligned_free(p);
  42     }
  43 }
  44
  45 int main()
  46 {
  47     test(1);
  48     test(2);
  49     test(4);
  50     test(8);
  51     test(16);
  52     test(32);
  53     test(64);
  54     test(128);
  55
  56     return boost::report_errors();
  57 }