#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>

int* create_int(int value) {
    int* a_n = malloc(sizeof(*a_n));
    *a_n = value;
    // free(a_n); <-- this is bad, once we free the address
    //                its no longer valid to use
    return a_n;
}

int main(int argc, char* argv[]) {
    // create implies something was created, that is malloced
    int* a_number = create_int(6);
    
    printf("My number is %d\n", *a_number);

    free(a_number);

    return EXIT_SUCCESS;
}
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