"p">)</span> <span class="k">const</span><span class="p">;</span>
<span class="p">};</span>

<span class="n">concept</span> <span class="n">MutableRandomAccess2DLocatorConcept</span><span class="o">&lt;</span><span class="n">RandomAccess2DLocatorConcept</span> <span class="n">Loc</span><span class="o">&gt;</span>
    <span class="o">:</span> <span class="n">MutableRandomAccessNDLocatorConcept</span><span class="o">&lt;</span><span class="n">Loc</span><span class="o">&gt;</span> <span class="p">{};</span>
</