Function hash_cleanup

src/lodepng.cpp:1378–1384

}

static void hash_cleanup(Hash* hash)
{
  lodepng_free(hash->head);
  lodepng_free(hash->val);
  lodepng_free(hash->chain);
  lodepng_free(hash->zeros);
}

static unsigned getHash(const unsigned char* data, size_t size, size_t pos)
{