s memory, such as screen mode changes. In
            such situations, <code class="constant">GL_FALSE</code> is returned and
            the data store contents are undefined. An application must
            detect this rare condition and reinitialize the data store.
        </p>
        <p>
            A buffer object's mapped data store is automatically unmapped
            when the buffer object is deleted or its data store is recreated
            with
            <a class="citerefentry" href="glBuffer