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

// okay to copy/adapt these macros
#define log_int(n) printf("%s == %d\n", (#n), n)
#define log_addr(n) printf("%s == %p\n", (#n), (void*)n)

void swap(int* a_left, int* a_right) {
    int left_num = *a_left;
    int right_num = *a_right;

    *a_left = right_num;
    *a_right = left_num;
}

int main(int argc, char* argv[]) {
    int n1 = 5;
    int n2 = 27;

    log_int(n1);
    log_int(n2);

    swap(&n1, &n2);
    printf("Swap called\n");
    log_int(n1);
    log_int(n2);

    return EXIT_SUCCESS;
}
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