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");
}

// Write your event dispatcher logic here
void handle_event(int event_code) {
    // Your logic
    //1. Create a function pointer array & assign each function to event code
    void (*event_fct_ptr_arr[5])() = {on_button,on_timer,on_uart,on_power,on_error};
    //2. Verify inputs
    if (event_code < 0 || event_code > 4){
        printf("Unhandled Event\n");
    }
    //Return correct function
    else return event_fct_ptr_arr[event_code]();
}

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