#ifndef RASG
#include <port.h>
#include <stdlib.h>
#include "attrib.h"

#define MIN(x,y)	((x)<(y)?(x):(y))
#define MAX(x,y)	((x)>(y)?(x):(y))

typedef struct s_rect {
  short r1, c1;		/* upper left corner */
  short r2, c2;		/* lower right corner */
} RECT;

enum dir { DIR_UP, DIR_DOWN, DIR_LEFT, DIR_RIGHT, DIR_NONE };

#define RWIDTH(a)	((a)->c2 - (a)->c1 + 1)
#define RHEIGHT(a)	((a)->r2 - (a)->r1 + 1)
#define RASG(a,rw1,cl1,rw2,cl2) ((a)->r1=rw1,(a)->c1=cl1,(a)->r2=rw2,(a)->c2=cl2)
#define GIANT	255	/* largest possible coordinate */

extern RECT GIANT_RECT;

extern bool clip(/**/ const RECT *, int, int, RECT * /**/);
extern void intersect(/**/ const RECT *, const RECT *, RECT * /**/);
extern void enclose(/**/ const RECT *, const RECT *, RECT * /**/);
#endif