ceph/src/boost/libs/align/test/aligned_allocator_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_allocator.hpp>
  10 #include <boost/align/is_aligned.hpp>
  11 #include <boost/core/lightweight_test.hpp>
  12 #include <cstring>
  13
  14 template<std::size_t Alignment>
  15 void test_allocate()
  16 {
  17     {
  18         boost::alignment::aligned_allocator<int, Alignment> a;
  19         int* p = a.allocate(1);
  20         BOOST_TEST(p != 0);
  21         BOOST_TEST(boost::alignment::is_aligned(p, Alignment));
  22         std::memset(p, 0, 1);
  23         a.deallocate(p, 1);
  24     }
  25     {
  26         boost::alignment::aligned_allocator<int, Alignment> a;
  27         int* p = a.allocate(0);
  28         a.deallocate(p, 0);
  29     }
  30 }
  31
  32 template<std::size_t Alignment>
  33 void test_construct()
  34 {
  35     boost::alignment::aligned_allocator<int, Alignment> a;
  36     int* p = a.allocate(1);
  37     a.construct(p, 1);
  38     BOOST_TEST(*p == 1);
  39     a.destroy(p);
  40     a.deallocate(p, 1);
  41 }
  42
  43 template<std::size_t Alignment>
  44 void test_constructor()
  45 {
  46     boost::alignment::aligned_allocator<char, Alignment> a1;
  47     boost::alignment::aligned_allocator<int, Alignment> a2(a1);
  48     BOOST_TEST(a2 == a1);
  49 }
  50
  51 template<std::size_t Alignment>
  52 void test_rebind()
  53 {
  54     boost::alignment::aligned_allocator<char, Alignment> a1;
  55     typename boost::alignment::aligned_allocator<char,
  56         Alignment>::template rebind<int>::other a2(a1);
  57     BOOST_TEST(a2 == a1);
  58 }
  59
  60 template<std::size_t Alignment>
  61 void test()
  62 {
  63     test_allocate<Alignment>();
  64     test_construct<Alignment>();
  65     test_constructor<Alignment>();
  66     test_rebind<Alignment>();
  67 }
  68
  69 int main()
  70 {
  71     test<1>();
  72     test<2>();
  73     test<4>();
  74     test<8>();
  75     test<16>();
  76     test<32>();
  77     test<64>();
  78     test<128>();
  79
  80     return boost::report_errors();
  81 }