break
		}
		i = int(d.hashPrev[i&windowMask]) - d.hashOffset
		if i < minIndex || i < 0 {
			break
		}
	}
	return
}

func (d *compressor) writeStoredBlock(buf []byte) error {
	if d.w.writeStoredHeader(len(buf), false); d.w.err != nil {
		return d.w.err
	}
	d.w.writeBytes(buf)
	return d.w.err
}

const hashmul = 0x1e35a7bd