// event_test_delete.cpp
#include <event.h>

int main() {
        event_base* ev;

        ev = event_init();
        delete ev;

        return 0;
}

// event_test_free.cpp
#include <event.h>
#include <cstdlib>

int main() {
        event_base* ev;

        ev = event_init();
        free(ev);

        return 0;
}

g++ event_test_free.cpp -levent -o event_test_free.o

event_init()

event_init()