1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// cast_tests.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/core/lightweight_test.hpp>
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/casts.hpp"
#include <string>
using namespace boost::lambda;
using namespace std;
class base {
int x;
public:
virtual const char* class_name() const { return "const base"; }
virtual const char* class_name() { return "base"; }
virtual ~base() {}
};
class derived : public base {
int y[100];
public:
virtual const char* class_name() const { return "const derived"; }
virtual const char* class_name() { return "derived"; }
};
void do_test() {
derived *p_derived = new derived;
base *p_base = new base;
base *b = NULL;
derived *d = NULL;
(var(b) = ll_static_cast<base *>(p_derived))();
(var(d) = ll_static_cast<derived *>(b))();
BOOST_TEST_CSTR_EQ(b->class_name(), "derived");
BOOST_TEST_CSTR_EQ(d->class_name(), "derived");
(var(b) = ll_dynamic_cast<derived *>(b))();
BOOST_TEST_NE(b, static_cast<base *>(NULL));
BOOST_TEST_CSTR_EQ(b->class_name(), "derived");
(var(d) = ll_dynamic_cast<derived *>(p_base))();
BOOST_TEST_EQ(d, static_cast<derived *>(NULL));
const derived* p_const_derived = p_derived;
BOOST_TEST_CSTR_EQ(p_const_derived->class_name(), "const derived");
(var(d) = ll_const_cast<derived *>(p_const_derived))();
BOOST_TEST_CSTR_EQ(d->class_name(), "derived");
int i = 10;
char* cp = reinterpret_cast<char*>(&i);
int* ip;
(var(ip) = ll_reinterpret_cast<int *>(cp))();
BOOST_TEST_EQ(*ip, 10);
// typeid
BOOST_TEST_CSTR_EQ(ll_typeid(d)().name(), typeid(d).name());
// sizeof
BOOST_TEST_EQ(ll_sizeof(_1)(p_derived), sizeof(p_derived));
BOOST_TEST_EQ(ll_sizeof(_1)(*p_derived), sizeof(*p_derived));
BOOST_TEST_EQ(ll_sizeof(_1)(p_base), sizeof(p_base));
BOOST_TEST_EQ(ll_sizeof(_1)(*p_base), sizeof(*p_base));
int an_array[100];
BOOST_TEST_EQ(ll_sizeof(_1)(an_array), 100 * sizeof(int));
delete p_derived;
delete p_base;
}
int main()
{
do_test();
return boost::report_errors();
}
|
