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 handle_event(int event_code) {
    if (event_code < 0 || event_code > 4) {
        printf("Unhandled Event\n");
        return;
    }

    void (*event_ops[5])() = {
        on_button, on_timer, on_uart, on_power, on_error
    };
    event_ops[event_code]();
}

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