diff options
Diffstat (limited to 'libs/smart_ptr/test/weak_from_this_test.cpp')
-rw-r--r-- | libs/smart_ptr/test/weak_from_this_test.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libs/smart_ptr/test/weak_from_this_test.cpp b/libs/smart_ptr/test/weak_from_this_test.cpp new file mode 100644 index 000000000..1a874e16f --- /dev/null +++ b/libs/smart_ptr/test/weak_from_this_test.cpp @@ -0,0 +1,52 @@ +#include <boost/config.hpp> + +// +// weak_from_this_test.cpp +// +// Copyright (c) 2002, 2003, 2015 Peter Dimov +// +// Distributed under the Boost Software License, Version 1.0. +// +// See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt +// + + +#include <boost/enable_shared_from_this.hpp> +#include <boost/shared_ptr.hpp> +#include <boost/weak_ptr.hpp> +#include <boost/detail/lightweight_test.hpp> + +class V: public boost::enable_shared_from_this<V> +{ +}; + +void test() +{ + boost::shared_ptr<V> p( new V ); + + boost::weak_ptr<V> q = p; + BOOST_TEST( !q.expired() ); + + boost::weak_ptr<V> q2 = p->weak_from_this(); + BOOST_TEST( !q2.expired() ); + BOOST_TEST( !(q < q2) && !(q2 < q) ); + + V v2( *p ); + + boost::weak_ptr<V> q3 = v2.weak_from_this(); + BOOST_TEST( q3.expired() ); + + *p = V(); + + boost::weak_ptr<V> q4 = p->shared_from_this(); + BOOST_TEST( !q4.expired() ); + BOOST_TEST( !(q < q4) && !(q4 < q) ); + BOOST_TEST( !(q2 < q4) && !(q4 < q2) ); +} + +int main() +{ + test(); + return boost::report_errors(); +} |