/*

 * Copyright © 2014 David FORT <contact@hardening-consulting.com>

 *

 * Permission to use, copy, modify, distribute, and sell this software and its

 * documentation for any purpose is hereby granted without fee, provided that

 * the above copyright notice appear in all copies and that both that copyright

 * notice and this permission notice appear in supporting documentation, and

 * that the name of the copyright holders not be used in advertising or

 * publicity pertaining to distribution of the software without specific,

 * written prior permission.  The copyright holders make no representations

 * about the suitability of this software for any purpose.  It is provided "as

 * is" without express or implied warranty.

 *

 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR

 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE

 * OF THIS SOFTWARE.

 */

#ifndef UWAC_UTILS_H_

#define UWAC_UTILS_H_

#include <stdlib.h>

#define min(a,b) \

   ({ __typeof__ (a) _a = (a); \

       __typeof__ (b) _b = (b); \

     _a < _b ? _a : _b; })

#define container_of(ptr, type, member) ({				\

	const __typeof__( ((type *)0)->member ) *__mptr = (ptr);	\

	(type *)( (char *)__mptr - offsetof(type,member) );})

#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])

void *xmalloc(size_t s);

static inline void *zalloc(size_t size) {

	return calloc(1, size);

}

void *xzalloc(size_t s);

char *xstrdup(const char *s);

void *xrealloc(char *p, size_t s);

#endif /* UWAC_UTILS_H_ */