1 #include <boost/config.hpp>
2
3 // lsp_convertible_test.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/smart_ptr/local_shared_ptr.hpp>
12 #include <boost/shared_ptr.hpp>
13 #include <boost/weak_ptr.hpp>
14 #include <boost/core/lightweight_test.hpp>
15 #include <boost/type_traits/is_convertible.hpp>
16
17 //
18
19 class X;
20
21 class B
22 {
23 };
24
25 class D: public B
26 {
27 };
28
29 using boost::is_convertible;
30
31 #define TEST_CV_TRUE_( S1, T, S2, U ) \
32 BOOST_TEST(( is_convertible< S1<T>, S2<U> >::value == true )); \
33 BOOST_TEST(( is_convertible< S1<T>, S2<const U> >::value == true )); \
34 BOOST_TEST(( is_convertible< S1<T>, S2<volatile U> >::value == true )); \
35 BOOST_TEST(( is_convertible< S1<T>, S2<const volatile U> >::value == true )); \
36 BOOST_TEST(( is_convertible< S1<const T>, S2<U> >::value == false )); \
37 BOOST_TEST(( is_convertible< S1<const T>, S2<const U> >::value == true )); \
38 BOOST_TEST(( is_convertible< S1<const T>, S2<volatile U> >::value == false )); \
39 BOOST_TEST(( is_convertible< S1<const T>, S2<const volatile U> >::value == true )); \
40 BOOST_TEST(( is_convertible< S1<volatile T>, S2<U> >::value == false )); \
41 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const U> >::value == false )); \
42 BOOST_TEST(( is_convertible< S1<volatile T>, S2<volatile U> >::value == true )); \
43 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const volatile U> >::value == true )); \
44 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<U> >::value == false )); \
45 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const U> >::value == false )); \
46 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<volatile U> >::value == false )); \
47 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const volatile U> >::value == true ));
48
49 #define TEST_CV_FALSE_( S1, T, S2, U ) \
50 BOOST_TEST(( is_convertible< S1<T>, S2<U> >::value == false )); \
51 BOOST_TEST(( is_convertible< S1<T>, S2<const U> >::value == false )); \
52 BOOST_TEST(( is_convertible< S1<T>, S2<volatile U> >::value == false )); \
53 BOOST_TEST(( is_convertible< S1<T>, S2<const volatile U> >::value == false )); \
54 BOOST_TEST(( is_convertible< S1<const T>, S2<U> >::value == false )); \
55 BOOST_TEST(( is_convertible< S1<const T>, S2<const U> >::value == false )); \
56 BOOST_TEST(( is_convertible< S1<const T>, S2<volatile U> >::value == false )); \
57 BOOST_TEST(( is_convertible< S1<const T>, S2<const volatile U> >::value == false )); \
58 BOOST_TEST(( is_convertible< S1<volatile T>, S2<U> >::value == false )); \
59 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const U> >::value == false )); \
60 BOOST_TEST(( is_convertible< S1<volatile T>, S2<volatile U> >::value == false )); \
61 BOOST_TEST(( is_convertible< S1<volatile T>, S2<const volatile U> >::value == false )); \
62 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<U> >::value == false )); \
63 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const U> >::value == false )); \
64 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<volatile U> >::value == false )); \
65 BOOST_TEST(( is_convertible< S1<const volatile T>, S2<const volatile U> >::value == false ));
66
67 using boost::local_shared_ptr;
68 using boost::shared_ptr;
69 using boost::weak_ptr;
70
71 #define TEST_CV_TRUE( T, U ) \
72 TEST_CV_TRUE_( local_shared_ptr, T, shared_ptr, U ) \
73 TEST_CV_TRUE_( local_shared_ptr, T, weak_ptr, U )
74
75 #define TEST_CV_FALSE( T, U ) \
76 TEST_CV_FALSE_( local_shared_ptr, T, shared_ptr, U ) \
77 TEST_CV_FALSE_( local_shared_ptr, T, weak_ptr, U )
78
main()79 int main()
80 {
81 #if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS)
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