*/
#define TYPECHECK(x,y) ( sizeof((x)) == sizeof((x)) ? (y) : (y) )
#define DEPLANARISE(x) TYPECHECK((x) == (to_dbcs_planar_t)NULL, (to_dbcs_t)(x))
*/
#define TYPECHECK(x,y) ( sizeof((x)) == sizeof((x)) ? (y) : (y) )
#define DEPLANARISE(x) TYPECHECK((x) == (to_dbcs_planar_t)NULL, (to_dbcs_t)(x))