1#include <boost/config.hpp>
2
3// sp_convertible_test.cpp
4//
5// Copyright (c) 2008 Peter Dimov
6//
7// Distributed under the Boost Software License, Version 1.0.
8// See accompanying file LICENSE_1_0.txt or copy at
9// http://www.boost.org/LICENSE_1_0.txt
10
11#include <boost/core/lightweight_test.hpp>
12#include <boost/shared_ptr.hpp>
13
14//
15
16class incomplete;
17
18struct X
19{
20};
21
22struct Y
23{
24};
25
26struct Z: public X
27{
28};
29
30int f( boost::shared_ptr<void const> )
31{
32 return 1;
33}
34
35int f( boost::shared_ptr<int> )
36{
37 return 2;
38}
39
40int f( boost::shared_ptr<incomplete> )
41{
42 return 3;
43}
44
45int g( boost::shared_ptr<X> )
46{
47 return 4;
48}
49
50int g( boost::shared_ptr<Y> )
51{
52 return 5;
53}
54
55int g( boost::shared_ptr<incomplete> )
56{
57 return 6;
58}
59
60int main()
61{
62 boost::shared_ptr<double> p1;
63 BOOST_TEST( 1 == f( p1 ) );
64 BOOST_TEST( 1 == f( boost::shared_ptr<double>() ) );
65
66 boost::shared_ptr<Z> p2;
67 BOOST_TEST( 4 == g( p2 ) );
68 BOOST_TEST( 4 == g( boost::shared_ptr<Z>() ) );
69
70 return boost::report_errors();
71}
72

source code of boost/libs/smart_ptr/test/shared_ptr_convertible_test.cpp