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#ifndef NFTABLES_UTILS_H
#define NFTABLES_UTILS_H
#include <stdint.h>
#include <stdbool.h>
#include <stdarg.h>
#include <stdio.h>
#include <unistd.h>
#include <assert.h>
#include <list.h>
#include <gmp.h>
#define BITS_PER_BYTE 8
#ifdef DEBUG
#define pr_debug(fmt, arg...) gmp_printf(fmt, ##arg)
#else
#define pr_debug(fmt, arg...) ({ if (false) gmp_printf(fmt, ##arg); 0; })
#endif
#define __fmtstring(x, y) __attribute__((format(printf, x, y)))
#if 0
#define __gmp_fmtstring(x, y) __fmtstring(x, y)
#else
#define __gmp_fmtstring(x, y)
#endif
#define __init __attribute__((constructor))
#define __exit __attribute__((destructor))
#define __must_check __attribute__((warn_unused_result))
#define __noreturn __attribute__((__noreturn__))
#ifdef DEBUG
#define BUG(fmt, arg...) ({ fprintf(stderr, "BUG: " fmt, ##arg); assert(0); })
#else
#define BUG(fmt, arg...) assert(0)
#endif
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
#define __must_be_array(a) \
BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
#define container_of(ptr, type, member) ({ \
typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
#define field_sizeof(t, f) (sizeof(((t *)NULL)->f))
#define array_size(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
#define div_round_up(n, d) (((n) + (d) - 1) / (d))
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
(void) (&_min1 == &_min2); \
_min1 < _min2 ? _min1 : _min2; })
#define max(x, y) ({ \
typeof(x) _max1 = (x); \
typeof(y) _max2 = (y); \
(void) (&_max1 == &_max2); \
_max1 > _max2 ? _max1 : _max2; })
extern void memory_allocation_error(void) __noreturn;
extern void xfree(const void *ptr);
extern void *xmalloc(size_t size);
extern void *xrealloc(void *ptr, size_t size);
extern void *xzalloc(size_t size);
extern char *xstrdup(const char *s);
#endif /* NFTABLES_UTILS_H */
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