ffmpeg.libavutil.attributes source code

1 /*
2  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * Macro definitions for various function/variable attributes
24  */
25 
26 module ffmpeg.libavutil.attributes;
27 
28 extern (C):
29 import ffmpeg; @nogc nothrow:
30 
31 extern (D) auto AV_GCC_VERSION_AT_LEAST(T0, T1)(auto ref T0 x, auto ref T1 y)
32 {
33     return __GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y;
34 }
35 
36 extern (D) auto AV_GCC_VERSION_AT_MOST(T0, T1)(auto ref T0 x, auto ref T1 y)
37 {
38     return __GNUC__ < x || __GNUC__ == x && __GNUC_MINOR__ <= y;
39 }
40 
41 /**
42  * Disable warnings about deprecated features
43  * This is useful for sections of code kept for backward compatibility and
44  * scheduled for removal.
45  */
46 
47 extern (D) auto AV_NOWARN_DEPRECATED(T)(auto ref T code)
48 {
49     return code;
50 }
51 
52 /**
53  * Mark a variable as used and prevent the compiler from optimizing it
54  * away.  This is useful for variables accessed only from inline
55  * assembler without the compiler being aware.
56  */
57 
58 
59 /* AVUTIL_ATTRIBUTES_H */