ceph/src/boost/libs/smart_ptr/test/make_unique_array_noinit_test.cpp

   1 /*
   2 Copyright 2014 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (http://www.boost.org/LICENSE_1_0.txt)
   7 */
   8 #include <boost/config.hpp>
   9 #if !defined(BOOST_NO_CXX11_SMART_PTR)
  10 #include <boost/detail/lightweight_test.hpp>
  11 #include <boost/smart_ptr/make_unique.hpp>
  12
  13 class type {
  14 public:
  15     static unsigned instances;
  16
  17     type() {
  18         ++instances;
  19     }
  20
  21     ~type() {
  22         --instances;
  23     }
  24
  25 private:
  26     type(const type&);
  27     type& operator=(const type&);
  28 };
  29
  30 unsigned type::instances = 0;
  31
  32 int main()
  33 {
  34     {
  35         std::unique_ptr<int[]> result =
  36             boost::make_unique_noinit<int[]>(3);
  37         BOOST_TEST(result.get() != 0);
  38     }
  39     {
  40         std::unique_ptr<int[][2]> result =
  41             boost::make_unique_noinit<int[][2]>(2);
  42         BOOST_TEST(result.get() != 0);
  43     }
  44     BOOST_TEST(type::instances == 0);
  45     {
  46         std::unique_ptr<type[]> result =
  47             boost::make_unique_noinit<type[]>(3);
  48         BOOST_TEST(result.get() != 0);
  49         BOOST_TEST(type::instances == 3);
  50         result.reset();
  51         BOOST_TEST(type::instances == 0);
  52     }
  53     BOOST_TEST(type::instances == 0);
  54     {
  55         std::unique_ptr<type[][2]> result =
  56             boost::make_unique_noinit<type[][2]>(2);
  57         BOOST_TEST(result.get() != 0);
  58         BOOST_TEST(type::instances == 4);
  59         result.reset();
  60         BOOST_TEST(type::instances == 0);
  61     }
  62     BOOST_TEST(type::instances == 0);
  63     {
  64         std::unique_ptr<const type[]> result =
  65             boost::make_unique_noinit<const type[]>(3);
  66         BOOST_TEST(result.get() != 0);
  67         BOOST_TEST(type::instances == 3);
  68         result.reset();
  69         BOOST_TEST(type::instances == 0);
  70     }
  71     BOOST_TEST(type::instances == 0);
  72     {
  73         std::unique_ptr<const type[][2]> result =
  74             boost::make_unique_noinit<const type[][2]>(2);
  75         BOOST_TEST(result.get() != 0);
  76         BOOST_TEST(type::instances == 4);
  77         result.reset();
  78         BOOST_TEST(type::instances == 0);
  79     }
  80     return boost::report_errors();
  81 }
  82 #else
  83 int main()
  84 {
  85     return 0;
  86 }
  87 #endif