#include "../q.h"
//#define DEBUG
-//#define CHECKS
+#define CHECKS
#define SPLAY
typedef enum {DIR_UP, DIR_DOWN} segment_dir_t;
fillstyle_t* (*diff)(windstate_t*left, windstate_t*right);
} windrule_t;
+#define SEGNR(s) ((s)?(s)->nr:-1)
+
typedef struct _segment {
point_t a;
point_t b;