#include "axis.hh"
enum Direction
- {
- UP = 1,
- DOWN=-1,
- LEFT=-1,
- RIGHT = 1,
- MIN=-1,
- MAX = 1,
- CENTER = 0,
- SMALLER=-1,
- BIGGER = 1,
- START = -1,
- STOP = 1,
-
- /*
- This is necessary to safely write loops,
- since
-
- dir <= RIGHT
-
- is otherwise transformed into true unconditionally.
- */
- DIRECTION_LIMIT = 2,
- DIRECTION_NEG_LIMIT = -2,
- };
+{
+ UP = 1,
+ DOWN = -1,
+ LEFT = -1,
+ RIGHT = 1,
+ MIN = -1,
+ MAX = 1,
+ CENTER = 0,
+ SMALLER = -1,
+ BIGGER = 1,
+ START = -1,
+ STOP = 1,
+
+ /*
+ This is necessary to safely write loops,
+ since
+
+ dir <= RIGHT
+
+ is otherwise transformed into true unconditionally.
+ */
+ DIRECTION_LIMIT = 2,
+ DIRECTION_NEG_LIMIT = -2,
+};
inline Direction
other_dir (Direction const d)