57. State Machine Using Function Pointers

#include <stdio.h>

void state_init()    { printf("Init"); }
void state_load()    { printf("Load"); }
void state_execute() { printf("Execute"); }
void state_exit()    { printf("Exit"); }

// Your logic here
void run_state_sequence(int start) {
    // Implement using function pointer array
    int dis = start;
    void (*func[4])(void) = {state_init,state_load,state_execute,state_exit};
    for (int i=0; i<3; i++)
    {
        if(dis>=4) dis =0; 
        func[dis]();
        dis++;
        // printf("\n dis=%d \n",dis);
        printf("\n");
    }        
}

int main() {
    int start;
    scanf("%d", &start);
    run_state_sequence(start);
    return 0;
}