BOOST_STATIC_ASSERT(  std::is_constructible<object::iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_constructible<object::iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_constructible<object::iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(  std::is_constructible<object::const_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::const_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::const_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::const_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(! std::is_constructible<object::local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_constructible<object::local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_constructible<object::local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(! std::is_constructible<object::const_local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_constructible<object::const_local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::const_local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_constructible<object::const_local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(  std::is_assignable<object::iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_assignable<object::iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_assignable<object::iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(  std::is_assignable<object::const_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::const_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::const_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::const_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(! std::is_assignable<object::local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_assignable<object::local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_assignable<object::local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(! std::is_assignable<object::const_local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(! std::is_assignable<object::const_local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::const_local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(  std::is_assignable<object::const_local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_equal_comparable<object::iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_equal_comparable<object::local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_equal_comparable<object::const_local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_unequal_comparable<object::iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_unequal_comparable<object::local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::local_iterator, object::const_local_iterator>::value);

    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_local_iterator, object::iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_local_iterator, object::const_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_local_iterator, object::local_iterator>::value);
    BOOST_STATIC_ASSERT(is_unequal_comparable<object::const_local_iterator, object::const_local_iterator>::value);