e">glMapBuffer</span></span></a>).
        </p>
        <p>
            If a mapping is not unmapped before the corresponding buffer
            object's data store is used by the GL, an error will be
            generated by any GL command that attempts to dereference the
            buffer object's data store, unless the buffer was successfully
            mapped with <code class="constant">GL_MAP_PERSISTENT_BIT</code> (see
            <a class="citerefentry" href="glMapBufferRange"><span class="citerefen