struct leaf * leaf_ctor(char * name) {
struct node * super = node_ctor(NULL);
super->vtable = &leaf_funcs;
struct leaf * this = realloc(super, sizeof(*this));
this->name = malloc(strlen(name) + 1);
strcpy(this->name, name);
return this;
}
int create_new_branch(node* end, char* parent, char* nd){
char* buf_parent = NULL;
char* buf_nd = NULL;
node* new_nd = NULL;
node* new_temp = NULL;
new_nd = node_new();
new_temp = node_new();
new_temp -> data = end -> data;
buf_parent = (char*) calloc (strlen(parent), sizeof(char));
strcpy(buf_parent, parent);
node_ctor(buf_parent, end);
buf_nd = (char*) calloc (strlen(nd), sizeof(char));
strcpy(buf_nd, nd);
node_ctor(buf_nd, new_nd);
add_node_left(end, new_nd);
add_node_right(end, new_temp);
return 0;
}