Either example with structs

example.c

#include "include/Func.h"
#include <stdio.h>

struct baz { int value; };
EITHER(struct baz *, baz, char, bax);

int main(void) {
    struct baz value = { 3 };
    Either(baz, bax) result = Left_baz_bax(&value);

    if (isLeft(result)) {
        printf("should be printed\n");
    }

    if (isRight(result)) {
        printf("should not be printed\n");
    }

    // the alternative value
    struct baz defaultValue = { 0 };
    struct baz * newResult = fromLeft(&defaultValue, result);

    printf("extracted result = %d\n", newResult->value);

    return 0;
}