#include <utf.h>
#include <fmt.h>

#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>

#define OREAD		O_RDONLY
#define OWRITE	O_WRONLY

#define nil ((void*)0)

typedef long long vlong;
typedef unsigned long long uvlong;