#ifndef WH_2DMATH_H_a433ba46_
#define WH_2DMATH_H_a433ba46_

typedef struct ipoint IPOINT;
typedef struct fpoint FPOINT;

struct ipoint {
  int x;
  int y;
  } ;

struct fpoint {
  double x;
  double y;
  } ;

extern FPOINT addf2(FPOINT, FPOINT);
extern FPOINT subf2(FPOINT, FPOINT);
extern FPOINT scalef(FPOINT, double);

#endif