ffmpeg.libavutil.macros source code

1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 /**
20  * @file
21  * @ingroup lavu
22  * Utility Preprocessor macros
23  */
24 
25 module ffmpeg.libavutil.macros;
26 
27 extern (C):
28 import ffmpeg; @nogc nothrow:
29 
30 /**
31  * @addtogroup preproc_misc Preprocessor String Macros
32  *
33  * String manipulation macros
34  *
35  * @{
36  */
37 
38 alias AV_STRINGIFY = AV_TOSTRING;
39 
40 extern (D) string AV_TOSTRING(T)(auto ref T s)
41 {
42     import std.conv : to;
43 
44     return to!string(s);
45 }
46 
47 extern (D) string AV_GLUE(T0, T1)(auto ref T0 a, auto ref T1 b)
48 {
49     import std.conv : to;
50 
51     return to!string(a) ~ to!string(b);
52 }
53 
54 alias AV_JOIN = AV_GLUE;
55 
56 /**
57  * @}
58  */
59 
60 extern (D) auto AV_PRAGMA(T)(auto ref T s)
61 {
62     import std.conv : to;
63 
64     return _Pragma(to!string(s));
65 }
66 
67 extern (D) auto FFALIGN(T0, T1)(auto ref T0 x, auto ref T1 a)
68 {
69     return (x + a - 1) & ~(a - 1);
70 }
71 
72 /* AVUTIL_MACROS_H */