#include "hash/djb2.h"

/*
 * Simple hash function djb2, as in Daniel J. Berenstein.
 */

uint64_t djb2(const char *str) {
    uint64_t h = 5381;
    int           c;

    while ((c = *str++)) h = ((h << 5) + h) + c; // h = h * 33 + c;

    return h;
}