61. Event-Based Triggers Using Function Pointer Array

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Code

#include <stdio.h>
typedef void (*event_fun)(void);

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
    event_fun event[] = {on_button, on_timer, on_uart, on_power, on_error};
    if ( event_code > 4 ) {
        printf("Unhandled Event\n");
    } 
    else {
        event[event_code] ();
        printf("\n");
    }
}

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

Solving Approach

 

 

 

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