#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>
typedef int state;
typedef int condition;
#define STATENUM 4
#define STATE1 0
#define STATE2 1
#define STATE3 2
#define STATETRAP 3
#define CONDITIONS 2
#define CONDITION1 0
#define CONDITION2 1
typedef void (* actiontype)(state mystate,condition mycondition);
typedef struct{
state next;
actiontype action;
}trasition, *ptrasition;
void action1(state mystate,condition myconditon);
void action2(state mystate,condition myconditon);
void action3(state mystate,condition myconditon);
void actiontrap(state mystate,condition myconditon);
trasition t1={
STATE2,action1
};
trasition t2={
STATE3,action2
};
trasition t3={
STATE2,action3
};
trasition tt={
STATETRAP,actiontrap
};
void action1(state mystate,condition myconditon){
printf("action1 one triggered
");
}
void action2(state mystate,condition myconditon){
printf("action2 one triggered
");
}
void action3(state mystate,condition myconditon){
printf("action3 one triggered
");
}
void actiontrap(state mystate,condition myconditon){
printf("actiontrap one triggered
");
}
ptrasition transition_table[STATENUM][CONDITIONS] = {
/* c1, c2*/
/* s1 */&t1, &tt,
/* s2 */&tt, &t2,
/* s3 */&t3, &tt,
/* st */&tt, &tt,
};
typedef struct
{
state current;
} StateMachine, * pStateMachine;
state step(pStateMachine machine, condition mycondition)
{
ptrasition t = transition_table[machine->current][mycondition];
(*(t->action))(machine->current, mycondition);
machine->current = t->next;
printf("the current state is %d
",t->next );
return machine->current;
}
int main(int argc, char *argv[])
{
StateMachine mymachine;
mymachine.current=STATE1;
int mycon;
char ch;
while(1){
scanf("%d",&mycon);
step(&mymachine,mycon);
}
return 0;
}