1/* libFLAC - Free Lossless Audio Codec library
2 * Copyright (C) 2012-2014  Xiph.org Foundation
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of the Xiph.org Foundation nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef FLAC__PRIVATE__MACROS_H
33#define FLAC__PRIVATE__MACROS_H
34
35#if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
36
37#define flac_max(a,b) \
38    ({ __typeof__ (a) _a = (a); \
39    __typeof__ (b) _b = (b); \
40    _a > _b ? _a : _b; })
41
42#define MIN_PASTE(A,B) A##B
43#define MIN_IMPL(A,B,L) ({ \
44    __typeof__(A) MIN_PASTE(__a,L) = (A); \
45    __typeof__(B) MIN_PASTE(__b,L) = (B); \
46    MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
47    })
48
49#define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
50
51/* Whatever other unix that has sys/param.h */
52#elif defined(HAVE_SYS_PARAM_H)
53#include <sys/param.h>
54#define flac_max(a,b) MAX(a,b)
55#define flac_min(a,b) MIN(a,b)
56
57/* Windows VS has them in stdlib.h.. XXX:Untested */
58#elif defined(_MSC_VER)
59#include <stdlib.h>
60#define flac_max(a,b) __max(a,b)
61#define flac_min(a,b) __min(a,b)
62#endif
63
64#ifndef MIN
65#define MIN(x,y)	((x) <= (y) ? (x) : (y))
66#endif
67
68#ifndef MAX
69#define MAX(x,y)	((x) >= (y) ? (x) : (y))
70#endif
71
72#endif
73