Event-Based Triggers Using Function Pointer Array

Code

#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");
}

typedef struct exports {
    int event_code;
    void (*func_ptr)(void);
}exports_t;

exports_t func_states[] = 
{
    {0, {on_button}},
    {1, {on_timer}},
    {2, {on_uart}},
    {3, {on_power}},
    {4, {on_error}}
};

// Write your event dispatcher logic here
void handle_event(int event_code) {
    if (event_code >= 0 && event_code < 5)
        func_states[event_code].func_ptr();
    else
        printf("Unhandled Event");
}

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

Solving Approach