/*

 * 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(void* p, size_t s);

#endif /* UWAC_UTILS_H_ */