xref: /aosp_15_r20/external/flac/src/libFLAC/include/private/macros.h (revision 600f14f40d737144c998e2ec7a483122d3776fbc)
1*600f14f4SXin Li /* libFLAC - Free Lossless Audio Codec library
2*600f14f4SXin Li  * Copyright (C) 2012-2023  Xiph.Org Foundation
3*600f14f4SXin Li  *
4*600f14f4SXin Li  * Redistribution and use in source and binary forms, with or without
5*600f14f4SXin Li  * modification, are permitted provided that the following conditions
6*600f14f4SXin Li  * are met:
7*600f14f4SXin Li  *
8*600f14f4SXin Li  * - Redistributions of source code must retain the above copyright
9*600f14f4SXin Li  * notice, this list of conditions and the following disclaimer.
10*600f14f4SXin Li  *
11*600f14f4SXin Li  * - Redistributions in binary form must reproduce the above copyright
12*600f14f4SXin Li  * notice, this list of conditions and the following disclaimer in the
13*600f14f4SXin Li  * documentation and/or other materials provided with the distribution.
14*600f14f4SXin Li  *
15*600f14f4SXin Li  * - Neither the name of the Xiph.org Foundation nor the names of its
16*600f14f4SXin Li  * contributors may be used to endorse or promote products derived from
17*600f14f4SXin Li  * this software without specific prior written permission.
18*600f14f4SXin Li  *
19*600f14f4SXin Li  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20*600f14f4SXin Li  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21*600f14f4SXin Li  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22*600f14f4SXin Li  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
23*600f14f4SXin Li  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24*600f14f4SXin Li  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25*600f14f4SXin Li  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26*600f14f4SXin Li  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27*600f14f4SXin Li  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28*600f14f4SXin Li  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29*600f14f4SXin Li  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30*600f14f4SXin Li  */
31*600f14f4SXin Li 
32*600f14f4SXin Li #ifndef FLAC__PRIVATE__MACROS_H
33*600f14f4SXin Li #define FLAC__PRIVATE__MACROS_H
34*600f14f4SXin Li 
35*600f14f4SXin Li #if defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3))
36*600f14f4SXin Li 
37*600f14f4SXin Li #define flac_max(a,b) \
38*600f14f4SXin Li 	({ __typeof__ (a) _a = (a); \
39*600f14f4SXin Li 	__typeof__ (b) _b = (b); \
40*600f14f4SXin Li 	_a > _b ? _a : _b; })
41*600f14f4SXin Li 
42*600f14f4SXin Li #define MIN_PASTE(A,B) A##B
43*600f14f4SXin Li #define MIN_IMPL(A,B,L) ({ \
44*600f14f4SXin Li 	__typeof__(A) MIN_PASTE(__a,L) = (A); \
45*600f14f4SXin Li 	__typeof__(B) MIN_PASTE(__b,L) = (B); \
46*600f14f4SXin Li 	MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
47*600f14f4SXin Li 	})
48*600f14f4SXin Li 
49*600f14f4SXin Li #define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
50*600f14f4SXin Li 
51*600f14f4SXin Li /* Whatever other unix that has sys/param.h */
52*600f14f4SXin Li #elif defined(HAVE_SYS_PARAM_H)
53*600f14f4SXin Li #include <sys/param.h>
54*600f14f4SXin Li #if defined(MIN) && defined(MAX)
55*600f14f4SXin Li #define flac_max(a,b) MAX(a,b)
56*600f14f4SXin Li #define flac_min(a,b) MIN(a,b)
57*600f14f4SXin Li #endif
58*600f14f4SXin Li 
59*600f14f4SXin Li /* Windows VS has them in stdlib.h.. XXX:Untested */
60*600f14f4SXin Li #elif defined(_MSC_VER)
61*600f14f4SXin Li #include <stdlib.h>
62*600f14f4SXin Li #define flac_max(a,b) __max(a,b)
63*600f14f4SXin Li #define flac_min(a,b) __min(a,b)
64*600f14f4SXin Li #endif
65*600f14f4SXin Li 
66*600f14f4SXin Li #ifndef flac_min
67*600f14f4SXin Li #define flac_min(x,y)	((x) <= (y) ? (x) : (y))
68*600f14f4SXin Li #endif
69*600f14f4SXin Li 
70*600f14f4SXin Li #ifndef flac_max
71*600f14f4SXin Li #define flac_max(x,y)	((x) >= (y) ? (x) : (y))
72*600f14f4SXin Li #endif
73*600f14f4SXin Li 
74*600f14f4SXin Li #endif
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