16        constant 
int NO_ERROR                   = 0;    
 
   17        constant 
int ERR_INVALID_SCHEDULE       = 1;    
 
   18        constant 
int ERR_UNKNOWN_EVENT_ID       = 2;    
 
   19        constant 
int ERR_CREATE_EVENT_ID_FAILED = 3;    
 
   20        constant 
int ERR_MAX_TIMERS_CREATED     = 4;    
 
   38        constant 
int OCT        = 10;   
 
   39        constant 
int NOV        = 11;   
 
   40        constant 
int DEC        = 12;