ceph/src/boost/libs/smart_ptr/test/make_unique_noinit_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/config.hpp>
  10 #if !defined(BOOST_NO_CXX11_SMART_PTR)
  11 #include <boost/detail/lightweight_test.hpp>
  12 #include <boost/smart_ptr/make_unique.hpp>
  13
  14 class type {
  15 public:
  16     static unsigned int instances;
  17
  18     explicit type() {
  19         instances++;
  20     }
  21
  22     ~type() {
  23         instances--;
  24     }
  25
  26 private:
  27     type(const type&);
  28     type& operator=(const type&);
  29 };
  30
  31 unsigned int type::instances = 0;
  32
  33 int main()
  34 {
  35     {
  36         std::unique_ptr<int> a1 = boost::make_unique_noinit<int>();
  37         BOOST_TEST(a1.get() != 0);
  38     }
  39
  40     BOOST_TEST(type::instances == 0);
  41     {
  42         std::unique_ptr<type> a1 = boost::make_unique_noinit<type>();
  43         BOOST_TEST(a1.get() != 0);
  44         BOOST_TEST(type::instances == 1);
  45         a1.reset();
  46         BOOST_TEST(type::instances == 0);
  47     }
  48
  49     BOOST_TEST(type::instances == 0);
  50     {
  51         std::unique_ptr<const type> a1 = boost::make_unique_noinit<const type>();
  52         BOOST_TEST(a1.get() != 0);
  53         BOOST_TEST(type::instances == 1);
  54         a1.reset();
  55         BOOST_TEST(type::instances == 0);
  56     }
  57
  58     return boost::report_errors();
  59 }
  60 #else
  61
  62 int main()
  63 {
  64     return 0;
  65 }
  66
  67 #endif