61. Event-Based Triggers Using Function Pointer Array

#include <stdio.h>

void on_button() {
    printf("Button Pressed");
}
void on_timer() {
    printf("Timer Expired");
}
void on_uart() {
    printf("UART Received");
}
void on_power() {
    printf("Power On");
}
void on_error() {
    printf("Error Detected");
}

void on_over() {
    printf("Unhandled Event");
}

typedef void (*fp)(void);
fp fp1[6] ={on_button, on_timer, on_uart, on_power, on_error, on_over};
void handle_event(int event_code) {
    if(event_code > 4 || event_code < 0){
        return fp1[5]();
    }
   return fp1[event_code]();
}

int main() {
    int event;
    scanf("%d", &event);
    handle_event(event);
    return 0;
}