9 #ifndef ThePEG_Direction_XH
10 #define ThePEG_Direction_XH
16 #include "ThePEG/Utilities/Exception.h"
23 struct MultipleDirectionException:
public Exception {
25 MultipleDirectionException(
int);
30 struct UndefinedDirectionException:
public Exception {
32 UndefinedDirectionException(
int);