I have a B + tree that acts as the index of a data file. This index should be saved to an index file.
The struct node
or node of the B + tree is:
typedef struct node
{
void ** pointers;
int * keys;
struct node * parent;
bool is_leaf;
int num_keys;.
} node;
How can I save this index made in B + tree to a file, and how to later retrieve the index to memory from this same file? If possible an implementation of this case or an example, to complement the explanation.