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

   1 //
   2 //  owner_less_test.cpp
   3 //
   4 //  A regression test for owner_less
   5 //
   6 //  Copyright (c) 2008 Frank Mori Hess
   7 //
   8 //  Distributed under the Boost Software License, Version 1.0.
   9 //
  10 //  See accompanying file LICENSE_1_0.txt or copy at
  11 //  http://www.boost.org/LICENSE_1_0.txt)
  12 //
  13
  14 #include <boost/core/lightweight_test.hpp>
  15 #include <boost/smart_ptr/owner_less.hpp>
  16 #include <boost/shared_ptr.hpp>
  17 #include <boost/weak_ptr.hpp>
  18
  19 int main()
  20 {
  21   boost::owner_less<boost::shared_ptr<int> > comp;
  22   {
  23     boost::shared_ptr<int> x;
  24     boost::shared_ptr<int> y;
  25     boost::weak_ptr<int> w;
  26     BOOST_TEST(!(comp(x, w) || comp(w, x)));
  27   }
  28   {
  29     boost::shared_ptr<int> z((int*)0);
  30     boost::weak_ptr<int> w;
  31     BOOST_TEST(comp(z, w) || comp(w, z));
  32     {
  33       boost::shared_ptr<int> zz(z);
  34       w = boost::weak_ptr<int>(zz);
  35       BOOST_TEST(!(comp(z, zz) || comp(z, zz)));
  36       BOOST_TEST(!(comp(z, w) || comp(z, w)));
  37     }
  38     BOOST_TEST(!(comp(z, w) || comp(w, z)));
  39   }
  40   {
  41     boost::shared_ptr<int> x;
  42     boost::shared_ptr<int> z((int*)0);
  43     BOOST_TEST(comp(x, z) || comp(z, x));
  44   }
  45   {
  46     boost::shared_ptr<int> a((int*)0);
  47     boost::shared_ptr<int> b((int*)0);
  48     BOOST_TEST(comp(a, b) || comp(b, a));
  49     boost::weak_ptr<int> w(a);
  50     BOOST_TEST(!(comp(a, w) || comp(w, a)));
  51     BOOST_TEST(comp(b, w) || comp(w, b));
  52   }
  53
  54   boost::owner_less<boost::weak_ptr<int> > weak_comp;
  55   {
  56     boost::shared_ptr<int> a((int*)0);
  57     boost::weak_ptr<int> wa(a);
  58     boost::shared_ptr<int> b((int*)0);
  59     boost::weak_ptr<int> wb(b);
  60     BOOST_TEST(!(weak_comp(a, wa) || weak_comp(wa, a)));
  61     BOOST_TEST(!(weak_comp(b, wb) || weak_comp(wb, b)));
  62     BOOST_TEST(weak_comp(wa, wb) || weak_comp(wb, wa));
  63     BOOST_TEST(weak_comp(wa, b) || weak_comp(b, wa));
  64   }
  65
  66   return boost::report_errors();
  67 }