ref: 15140dcce2b1670af6f4d78ddb5cf52444107aee
dir: /sys/src/cmd/audio/libFLAC/private/macros.h/
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2012-2016 Xiph.org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLAC__PRIVATE__MACROS_H
#define FLAC__PRIVATE__MACROS_H
#if defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3))
#define flac_max(a,b) \
({ __typeof__ (a) _a = (a); \
__typeof__ (b) _b = (b); \
_a > _b ? _a : _b; })
#define MIN_PASTE(A,B) A##B
#define MIN_IMPL(A,B,L) ({ \
__typeof__(A) MIN_PASTE(__a,L) = (A); \
__typeof__(B) MIN_PASTE(__b,L) = (B); \
MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
})
#define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
/* Whatever other unix that has sys/param.h */
#elif defined(HAVE_SYS_PARAM_H)
#include <sys/param.h>
#if defined(MIN) && defined(MAX)
#define flac_max(a,b) MAX(a,b)
#define flac_min(a,b) MIN(a,b)
#endif
/* Windows VS has them in stdlib.h.. XXX:Untested */
#elif defined(_MSC_VER)
#include <stdlib.h>
#define flac_max(a,b) __max(a,b)
#define flac_min(a,b) __min(a,b)
#endif
#ifndef flac_min
#define flac_min(x,y) ((x) <= (y) ? (x) : (y))
#endif
#ifndef flac_max
#define flac_max(x,y) ((x) >= (y) ? (x) : (y))
#endif
#endif