#ifndef UTIL_H
#define UTIL_H

#define ARRAY_SIZE(a) (sizeof (a) / sizeof *(a))
#define ADDARRAY(a, e) \
	do { \
	if ((a ## num) >= (a ## max)) { \
		if (!(a ## max)) \
			(a ## max) = 16; \
		else \
			(a ## max) *= 2; \
		(a) = realloc((a), (a ## max)*sizeof(*(a))); \
	} \
	(a)[(a ## num)++] = (e); \
	} while(0)


#endif