Asterisk - The Open Source Telephony Project  18.5.0
compiler.h
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1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2005, Digium, Inc.
5  *
6  * Mark Spencer <[email protected]>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18 
19 /*! \file
20  * \brief Compiler-specific macros and other items
21  */
22 
23 #ifndef _ASTERISK_COMPILER_H
24 #define _ASTERISK_COMPILER_H
25 
26 #ifdef HAVE_ATTRIBUTE_always_inline
27 #define force_inline __attribute__((always_inline)) inline
28 #else
29 #define force_inline inline
30 #endif
31 
32 #ifdef HAVE_ATTRIBUTE_pure
33 #define attribute_pure __attribute__((pure))
34 #else
35 #define attribute_pure
36 #endif
37 
38 #ifdef HAVE_ATTRIBUTE_const
39 #define attribute_const __attribute__((const))
40 #else
41 #define attribute_const
42 #endif
43 
44 #ifdef HAVE_ATTRIBUTE_deprecated
45 #define attribute_deprecated __attribute__((deprecated))
46 #else
47 #define attribute_deprecated
48 #endif
49 
50 #ifdef HAVE_ATTRIBUTE_unused
51 #define attribute_unused __attribute__((unused))
52 #else
53 #define attribute_unused
54 #endif
55 
56 #ifdef HAVE_ATTRIBUTE_malloc
57 #define attribute_malloc __attribute__((malloc))
58 #else
59 #define attribute_malloc
60 #endif
61 
62 #ifdef HAVE_ATTRIBUTE_sentinel
63 #define attribute_sentinel __attribute__((sentinel))
64 #else
65 #define attribute_sentinel
66 #endif
67 
68 #ifdef HAVE_ATTRIBUTE_warn_unused_result
69 #define attribute_warn_unused_result __attribute__((warn_unused_result))
70 #else
71 #define attribute_warn_unused_result
72 #endif
73 
74 #ifdef HAVE_ATTRIBUTE_may_alias
75 #define attribute_may_alias __attribute__((may_alias))
76 #else
77 #define attribute_may_alias
78 #endif
79 
80 #ifdef HAVE_ATTRIBUTE_noreturn
81 #define attribute_noreturn __attribute__((noreturn))
82 #else
83 #define attribute_noreturn
84 #endif
85 
86 /* Some older version of GNU gcc (3.3.5 on OpenBSD 4.3 for example) dont like 'NULL' as sentinel */
87 #define SENTINEL ((char *)NULL)
88 
89 #endif /* _ASTERISK_COMPILER_H */
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