1#include <boost/config.hpp>
2
3// sp_convertible_test2.cpp
4//
5// Copyright 2012, 2017 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/shared_ptr.hpp>
12#include <boost/weak_ptr.hpp>
13#include <boost/core/lightweight_test.hpp>
14#include <boost/type_traits/is_convertible.hpp>
15
16//
17
18class X;
19
20class B
21{
22};
23
24class D: public B
25{
26};
27
28using boost::is_convertible;
29
30#define TEST_CV_TRUE_( S1, T, S2, U ) \
31 BOOST_TEST(( is_convertible< S1<T>, S2<U> >::value == true )); \
32 BOOST_TEST(( is_convertible< S1<T>, S2<const U> >::value == true )); \
33 BOOST_TEST(( is_convertible< S1<T>, S2<volatile U> >::value == true )); \
34 BOOST_TEST(( is_convertible< S1<T>, S2<const volatile U> >::value == true )); \
35 BOOST_TEST(( is_convertible< S1<const T>, S2<U> >::value == false )); \
36 BOOST_TEST(( is_convertible< S1<const T>, S2<const U> >::value == true )); \
37 BOOST_TEST(( is_convertible< S1<const T>, S2<volatile U> >::value == false )); \
38 BOOST_TEST(( is_convertible< S1<const T>, S2<const volatile U> >::value == true )); \
39 BOOST_TEST(( is_convertible< S1<volatile T>, S2<U> >::value == false )); \
40 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const U> >::value == false )); \
41 BOOST_TEST(( is_convertible< S1<volatile T>, S2<volatile U> >::value == true )); \
42 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const volatile U> >::value == true )); \
43 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<U> >::value == false )); \
44 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const U> >::value == false )); \
45 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<volatile U> >::value == false )); \
46 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const volatile U> >::value == true ));
47
48#define TEST_CV_FALSE_( S1, T, S2, U ) \
49 BOOST_TEST(( is_convertible< S1<T>, S2<U> >::value == false )); \
50 BOOST_TEST(( is_convertible< S1<T>, S2<const U> >::value == false )); \
51 BOOST_TEST(( is_convertible< S1<T>, S2<volatile U> >::value == false )); \
52 BOOST_TEST(( is_convertible< S1<T>, S2<const volatile U> >::value == false )); \
53 BOOST_TEST(( is_convertible< S1<const T>, S2<U> >::value == false )); \
54 BOOST_TEST(( is_convertible< S1<const T>, S2<const U> >::value == false )); \
55 BOOST_TEST(( is_convertible< S1<const T>, S2<volatile U> >::value == false )); \
56 BOOST_TEST(( is_convertible< S1<const T>, S2<const volatile U> >::value == false )); \
57 BOOST_TEST(( is_convertible< S1<volatile T>, S2<U> >::value == false )); \
58 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const U> >::value == false )); \
59 BOOST_TEST(( is_convertible< S1<volatile T>, S2<volatile U> >::value == false )); \
60 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const volatile U> >::value == false )); \
61 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<U> >::value == false )); \
62 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const U> >::value == false )); \
63 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<volatile U> >::value == false )); \
64 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const volatile U> >::value == false ));
65
66using boost::shared_ptr;
67using boost::weak_ptr;
68
69#define TEST_CV_TRUE( T, U ) \
70 TEST_CV_TRUE_( shared_ptr, T, shared_ptr, U ) \
71 TEST_CV_TRUE_( shared_ptr, T, weak_ptr, U ) \
72 TEST_CV_TRUE_( weak_ptr, T, weak_ptr, U )
73
74#define TEST_CV_FALSE( T, U ) \
75 TEST_CV_FALSE_( shared_ptr, T, shared_ptr, U ) \
76 TEST_CV_FALSE_( shared_ptr, T, weak_ptr, U ) \
77 TEST_CV_FALSE_( weak_ptr, T, weak_ptr, U )
78
79int main()
80{
81#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
82
83 TEST_CV_TRUE( X, X )
84 TEST_CV_TRUE( X, void )
85 TEST_CV_FALSE( void, X )
86 TEST_CV_TRUE( D, B )
87 TEST_CV_FALSE( B, D )
88
89 TEST_CV_TRUE( X[], X[] )
90 TEST_CV_FALSE( D[], B[] )
91
92 TEST_CV_TRUE( X[3], X[3] )
93 TEST_CV_FALSE( X[3], X[4] )
94 TEST_CV_FALSE( D[3], B[3] )
95
96 TEST_CV_TRUE( X[3], X[] )
97 TEST_CV_FALSE( X[], X[3] )
98
99 TEST_CV_TRUE( X[], void )
100 TEST_CV_FALSE( void, X[] )
101
102 TEST_CV_TRUE( X[3], void )
103 TEST_CV_FALSE( void, X[3] )
104
105#endif
106
107 return boost::report_errors();
108}
109

source code of boost/libs/smart_ptr/test/sp_convertible_test2.cpp