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

typedef struct _BSTNode {
    int value;
    struct _BSTNode* left;
    struct _BSTNode* right;
} BSTNode;

void insert(int value, BSTNode** a_root) {
    BSTNode* new_node = malloc(sizeof(*new_node));
    *new_node = (BSTNode) { .value = value, .left = NULL, .right = NULL };
    *a_root = new_node;  // fine for tree of size 1
}

int main(int argc, char* argv[]) {
    // size == 0  (empty tree)
    BSTNode* root = NULL;

    insert(4, &root);
    assert(root -> value == 4); // will crash program (intentionally) if condition is false
    printf("root -> value == %d\n", root -> value);
    
    // TODO:  Free the BST
    return EXIT_SUCCESS;
}
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