#ifndef UTIL_H
#define UTIL_H

#include <assert.h>

typedef char *string;
typedef char bool;

#define TRUE 1
#define FALSE 0

void *checked_malloc(int);
string String(char *);

typedef struct U_boolList_ *U_boolList;
struct U_boolList_ {
	bool head;
	U_boolList tail;
};
U_boolList U_BoolList(bool head, U_boolList tail);

#endif // !UTIL_H