         <code class="constant">GL_INVALID_OPERATION</code> is generated by
            <code class="function">glClearNamedBufferSubData</code> if
            <em class="parameter"><code>buffer</code></em> is not the name of an existing
            buffer object.
        </p>
        <p>
            <code class="constant">GL_INVALID_ENUM</code> is generated if
            <em class="parameter"><code>internalformat</code></em> is not one of the valid
            sized internal formats listed in the table abo