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

union IntOrString {
    int as_int;
    char* as_string;
};  // SEMICOLON!!!!


// void print_number_as_int_or_string(IntOrString number_as_int_or_string) {  // won't work quite yet
// }

int main(int argc, char* argv[]) {

    union IntOrString five = { .as_int = 5 };
    // Union object can store only one of its fields at a time.
    // It has space for the largest field.
    
    //printf("five.as_int == %d\n", five.as_int);
    log_int(five.as_int);

    five.as_string = "cinco";  // overwrites the int value in the union object because it
                               // has space for only one of its fields.
    log_str(five.as_string);

    // Union objects do not keep track of which field has been written to.  That is your job.

    log_int(five.as_int);  // BAD!!!  .as_int field was overwritten
                           // Output: five.as_int == 4196247
    return EXIT_SUCCESS;
}
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