Function cbm_minhash_from_hex

src/simhash/minhash.c:297–314

}

bool cbm_minhash_from_hex(const char *hex, cbm_minhash_t *out) {
    if (!hex || !out) {
        return false;
    }
    size_t len = strlen(hex);
    if ((int)len != CBM_MINHASH_HEX_LEN) {
        return false;
    }
    for (int i = 0; i < CBM_MINHASH_K; i++) {
        char chunk[HEX_CHARS_PER_U32 + SKIP_ONE];
        ptrdiff_t offset = (ptrdiff_t)i * HEX_CHARS_PER_U32;
        memcpy(chunk, hex + offset, HEX_CHARS_PER_U32);
        chunk[HEX_CHARS_PER_U32] = '\0';
        unsigned long val = strtoul(chunk, NULL, HEX_BASE);
        out->values[i] = (uint32_t)val;
    }
    return true;
}

/* ── LSH index ───────────────────────────────────────────────────── */