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
|
/**
* This file is part of Hercules.
* http://herc.ws - http://github.com/HerculesWS/Hercules
*
* Copyright (C) 2012-2018 Hercules Dev Team
* Copyright (C) Athena Dev Teams
*
* Hercules is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef COMMON_NULLPO_H
#define COMMON_NULLPO_H
#include "common/hercules.h"
// if need disable nullpo checks this line can be commented
#define NULLPO_CHECK
// if need disable asserts checks this line can be commented
#define ASSERT_CHECK
/** Assert */
#if defined(ASSERT_CHECK)
// extern "C" {
#include <assert.h>
// }
#if !defined(DEFCPP) && defined(WIN32) && !defined(MINGW)
#include <crtdbg.h>
#endif // !DEFCPP && WIN && !MINGW
#define Assert(EX) assert(EX)
/**
* Reports an assertion failure if the passed expression is false.
*
* @param EX The expression to test.
* @return false if the passed expression is true, false otherwise.
*/
#define Assert_chk(EX) ( (EX) ? false : (nullpo->assert_report(__FILE__, __LINE__, __func__, #EX, "failed assertion"), true) )
/**
* Reports an assertion failure (without actually checking it).
*
* @param EX the expression to report.
*/
#define Assert_report(EX) (nullpo->assert_report(__FILE__, __LINE__, __func__, #EX, "failed assertion"))
#else // ! ASSERT_CHECK
#define Assert(EX) (EX)
#define Assert_chk(EX) ((EX), false)
#define Assert_report(EX) ((void)(EX))
#endif // ASSERT_CHECK
#if defined(NULLPO_CHECK)
/**
* Reports NULL pointer information if the passed pointer is NULL
*
* @param t pointer to check
* @return true if the passed pointer is NULL, false otherwise
*/
#define nullpo_chk(t) ( (t) != NULL ? false : (nullpo->assert_report(__FILE__, __LINE__, __func__, #t, "nullpo info"), true) )
#else // ! NULLPO_CHECK
#define nullpo_chk(t) ((void)(t), false)
#endif // NULLPO_CHECK
/**
* The following macros check for NULL pointers and return from the current
* function or block in case one is found.
*
* It is guaranteed that the argument is evaluated once and only once, so it
* is safe to call them as:
* nullpo_ret(x = func());
* The macros can be used safely in any context, as they expand to a do/while
* construct, except nullpo_retb, which expands to an if/else construct.
*/
/**
* Returns 0 if a NULL pointer is found.
*
* @param t pointer to check
*/
#define nullpo_ret(t) \
do { if (nullpo_chk(t)) return(0); } while(0)
/**
* Returns 0 if the given assertion fails.
*
* @param t statement to check
*/
#define Assert_ret(t) \
do { if (Assert_chk(t)) return(0); } while(0)
/**
* Returns void if a NULL pointer is found.
*
* @param t pointer to check
*/
#define nullpo_retv(t) \
do { if (nullpo_chk(t)) return; } while(0)
/**
* Returns void if the given assertion fails.
*
* @param t statement to check
*/
#define Assert_retv(t) \
do { if (Assert_chk(t)) return; } while(0)
/**
* Returns the given value if a NULL pointer is found.
*
* @param ret value to return
* @param t pointer to check
*/
#define nullpo_retr(ret, t) \
do { if (nullpo_chk(t)) return(ret); } while(0)
/**
* Returns the given value if the given assertion fails.
*
* @param ret value to return
* @param t statement to check
*/
#define Assert_retr(ret, t) \
do { if (Assert_chk(t)) return(ret); } while(0)
/**
* Breaks from the current loop/switch if a NULL pointer is found.
*
* @param t pointer to check
*/
#define nullpo_retb(t) \
if (nullpo_chk(t)) break; else (void)0
/**
* Breaks from the current loop/switch if the given assertion fails.
*
* @param t statement to check
*/
#define Assert_retb(t) \
if (Assert_chk(t)) break; else (void)0
struct nullpo_interface {
void (*assert_report) (const char *file, int line, const char *func, const char *targetname, const char *title);
};
#ifdef HERCULES_CORE
void nullpo_defaults(void);
#endif // HERCULES_CORE
HPShared struct nullpo_interface *nullpo;
#endif /* COMMON_NULLPO_H */
|
