38     boost::function0<int> fn;  in main()  local
40     BOOST_TEST( !fn.contains( boost::bind( f, 1 ) ) );  in main()
41     BOOST_TEST( !fn.contains( boost::bind( f, 2 ) ) );  in main()
42     BOOST_TEST( !fn.contains( boost::bind( g, 1 ) ) );  in main()
44     fn = boost::bind( f, 1 );  in main()
46     BOOST_TEST( fn() == 1 );  in main()
48     BOOST_TEST( fn.contains( boost::bind( f, 1 ) ) );  in main()
49     BOOST_TEST( !fn.contains( boost::bind( f, 2 ) ) );  in main()
50     BOOST_TEST( !fn.contains( boost::bind( g, 1 ) ) );  in main()
52     fn = boost::bind( f, 2 );  in main()
54     BOOST_TEST( fn() == 2 );  in main()
56     BOOST_TEST( !fn.contains( boost::bind( f, 1 ) ) );  in main()
57     BOOST_TEST( fn.contains( boost::bind( f, 2 ) ) );  in main()
58     BOOST_TEST( !fn.contains( boost::bind( g, 1 ) ) );  in main()
60     fn = boost::bind( g, 1 );  in main()
62     BOOST_TEST( fn() == 2 );  in main()
64     BOOST_TEST( !fn.contains( boost::bind( f, 1 ) ) );  in main()
65     BOOST_TEST( !fn.contains( boost::bind( f, 2 ) ) );  in main()
66     BOOST_TEST( fn.contains( boost::bind( g, 1 ) ) );  in main()