(svn r7388) -Fix (r7384 / r7368 / r3757): When adding a new news item for the first time (_latest_news
is INVALID_NEWS), make it the value of _oldest_news, not zero as DeleteVehicleNews can
change _oldest_news. Also remove the (i == INVALID_NEWS) return 0; guard from increaseIndex
as it's only used in 2 places, nowhere else.
/* $Id$ */
#ifndef ROAD_H
#define ROAD_H
typedef enum RoadBits {
ROAD_NW = 1U,
ROAD_SW = 2U,
ROAD_SE = 4U,
ROAD_NE = 8U,
ROAD_X = ROAD_SW | ROAD_NE,
ROAD_Y = ROAD_NW | ROAD_SE,
ROAD_ALL = ROAD_X | ROAD_Y
} RoadBits;
static inline RoadBits ComplementRoadBits(RoadBits r)
{
return (RoadBits)(ROAD_ALL ^ r);
}
static inline RoadBits DiagDirToRoadBits(DiagDirection d)
{
return (RoadBits)(1U << (3 ^ d));
}
#endif /* ROAD_H */