| 1 | // |
|---|---|
| 2 | // shared_ptr_fn_test.cpp |
| 3 | // |
| 4 | // Copyright 2017 Peter Dimov |
| 5 | // |
| 6 | // Distributed under the Boost Software License, Version 1.0. |
| 7 | // See accompanying file LICENSE_1_0.txt or copy at |
| 8 | // http://www.boost.org/LICENSE_1_0.txt |
| 9 | // |
| 10 | |
| 11 | #include <boost/shared_ptr.hpp> |
| 12 | #include <boost/weak_ptr.hpp> |
| 13 | #include <boost/core/lightweight_test.hpp> |
| 14 | |
| 15 | static void f() |
| 16 | { |
| 17 | } |
| 18 | |
| 19 | struct null_deleter |
| 20 | { |
| 21 | template<class Y> void operator()( Y* ) {} |
| 22 | }; |
| 23 | |
| 24 | int main() |
| 25 | { |
| 26 | boost::shared_ptr<void()> pf( f, null_deleter() ); |
| 27 | |
| 28 | BOOST_TEST( pf.get() == f ); |
| 29 | BOOST_TEST_EQ( pf.use_count(), 1 ); |
| 30 | BOOST_TEST( boost::get_deleter<null_deleter>( pf ) != 0 ); |
| 31 | |
| 32 | boost::weak_ptr<void()> wp( pf ); |
| 33 | |
| 34 | BOOST_TEST( wp.lock().get() == f ); |
| 35 | BOOST_TEST_EQ( wp.use_count(), 1 ); |
| 36 | |
| 37 | pf.reset(); |
| 38 | |
| 39 | BOOST_TEST( wp.lock().get() == 0 ); |
| 40 | BOOST_TEST_EQ( wp.use_count(), 0 ); |
| 41 | |
| 42 | return boost::report_errors(); |
| 43 | } |
| 44 |