Function raxStart

app/redis-6.2.6/src/rax.c:1258–1267

Initialize a Rax iterator. This call should be performed a single time * to initialize the iterator, and must be followed by a raxSeek() call, * otherwise the raxPrev()/raxNext() functions will just return EOF. */

 * to initialize the iterator, and must be followed by a raxSeek() call,
 * otherwise the raxPrev()/raxNext() functions will just return EOF. */
void raxStart(raxIterator *it, rax *rt) {
    it->flags = RAX_ITER_EOF; /* No crash if the iterator is not seeked. */
    it->rt = rt;
    it->key_len = 0;
    it->key = it->key_static_string;
    it->key_max = RAX_ITER_STATIC_LEN;
    it->data = NULL;
    it->node_cb = NULL;
    raxStackInit(&it->stack);
}

/* Append characters at the current key string of the iterator 'it'. This
 * is a low level function used to implement the iterator, not callable by