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 |