      <code class="constant">GL_INVALID_OPERATION</code> is generated if any
            part of the specified range of the buffer object is mapped with
            <a class="citerefentry" href="glMapBufferRange"><span class="citerefentry"><span class="refentrytitle">glMapBufferRange</span></span></a>
            or
            <a class="citerefentry" href="glMapBuffer"><span class="citerefentry"><span class="refentrytitle">glMapBuffer</span></span></a>,
            unless it was mapped with the
           