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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
// Copyright (C) 2006-2009, 2012 Alexander Nasonov
// Copyright (C) 2012 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0
// (see accompanying file LICENSE_1_0.txt or a copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Home at http://www.boost.org/libs/scope_exit
#include <boost/scope_exit.hpp>
#include <boost/config.hpp>
#include <boost/typeof/typeof.hpp>
#include <boost/typeof/std/string.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <iostream>
#include <ostream>
#include <string>
std::string g_str;
template<int Dummy = 0>
struct Holder {
static long g_long;
};
template<int Dummy> long Holder<Dummy>::g_long;
void test_non_local(void) {
// ... and one local variable as well:
int i = 0;
BOOST_SCOPE_EXIT(void) {
BOOST_TEST(Holder<>::g_long == 3);
} BOOST_SCOPE_EXIT_END
BOOST_SCOPE_EXIT( (i) ) {
BOOST_TEST(i == 0);
BOOST_TEST(Holder<>::g_long == 3);
BOOST_TEST(g_str == "try: g_str");
} BOOST_SCOPE_EXIT_END
BOOST_SCOPE_EXIT( (&i) ) {
BOOST_TEST(i == 3);
BOOST_TEST(Holder<>::g_long == 3);
BOOST_TEST(g_str == "try: g_str");
} BOOST_SCOPE_EXIT_END
{
g_str = "";
Holder<>::g_long = 1;
BOOST_SCOPE_EXIT( (&i) ) {
i = 1;
g_str = "g_str";
} BOOST_SCOPE_EXIT_END
BOOST_SCOPE_EXIT( (&i) ) {
try {
i = 2;
Holder<>::g_long = 2;
throw 0;
} catch(...) {}
} BOOST_SCOPE_EXIT_END
BOOST_TEST(i == 0);
BOOST_TEST(g_str == "");
BOOST_TEST(Holder<>::g_long == 1);
}
BOOST_TEST(Holder<>::g_long == 2);
BOOST_TEST(g_str == "g_str");
BOOST_TEST(i == 1); // Check that first declared is executed last.
BOOST_SCOPE_EXIT( (&i) ) {
BOOST_TEST(i == 3);
BOOST_TEST(Holder<>::g_long == 3);
BOOST_TEST(g_str == "try: g_str");
} BOOST_SCOPE_EXIT_END
BOOST_SCOPE_EXIT( (i) ) {
BOOST_TEST(i == 1);
BOOST_TEST(Holder<>::g_long == 3);
BOOST_TEST(g_str == "try: g_str");
} BOOST_SCOPE_EXIT_END
try {
BOOST_SCOPE_EXIT( (&i) ) {
i = 3;
g_str = "try: g_str";
} BOOST_SCOPE_EXIT_END
BOOST_SCOPE_EXIT( (&i) ) {
i = 4;
Holder<>::g_long = 3;
} BOOST_SCOPE_EXIT_END
BOOST_TEST(i == 1);
BOOST_TEST(g_str == "g_str");
BOOST_TEST(Holder<>::g_long == 2);
throw 0;
} catch(int) {
BOOST_TEST(Holder<>::g_long == 3);
BOOST_TEST(g_str == "try: g_str");
BOOST_TEST(i == 3); // Check that first declared is executed last.
}
}
bool foo(void) { return true; }
bool foo2(void) { return false; }
void test_types(void) {
bool (*pf)(void) = 0;
bool (&rf)(void) = foo;
bool results[2] = {};
{
BOOST_SCOPE_EXIT( (&results) (&pf) (&rf) ) {
results[0] = pf();
results[1] = rf();
}
BOOST_SCOPE_EXIT_END
pf = &foo;
BOOST_TEST(results[0] == false);
BOOST_TEST(results[1] == false);
}
BOOST_TEST(results[0] == true);
BOOST_TEST(results[1] == true);
{
BOOST_SCOPE_EXIT( (&results) (pf) ) {
results[0] = !pf();
results[1] = !pf();
pf = &foo2; // modify a copy
}
BOOST_SCOPE_EXIT_END
pf = 0;
BOOST_TEST(results[0] == true);
BOOST_TEST(results[1] == true);
}
BOOST_TEST(pf == 0);
BOOST_TEST(results[0] == false);
BOOST_TEST(results[1] == false);
}
void test_capture_all(void) {
#ifndef BOOST_NO_CXX11_LAMBDAS
int i = 0, j = 1;
{
BOOST_SCOPE_EXIT_ALL(=) {
i = j = 1; // modify copies
};
}
BOOST_TEST(i == 0);
BOOST_TEST(j == 1);
{
BOOST_SCOPE_EXIT_ALL(&) {
i = 1;
j = 2;
};
BOOST_TEST(i == 0);
BOOST_TEST(j == 1);
}
BOOST_TEST(i == 1);
BOOST_TEST(j == 2);
{
BOOST_SCOPE_EXIT_ALL(=, &j) {
i = 2; // modify a copy
j = 3;
};
BOOST_TEST(i == 1);
BOOST_TEST(j == 2);
}
BOOST_TEST(i == 1);
BOOST_TEST(j == 3);
#endif // lambdas
}
int main(void) {
test_non_local();
test_types();
test_capture_all();
return boost::report_errors();
}
|
