pre></div>
</div>
<p>2D locators can have a dynamic step not just horizontally, but
vertically. This gives rise to the Y equivalent of
<code class="docutils literal"><span class="pre">HasDynamicXStepTypeConcept</span></code>:</p>
<div class="highlight-cpp"><div class="highlight"><pre><span class="n">concept</span> <span class="n">HasDynamicYStepTypeConcept</span><span class="o">&lt;</span><span class="k">typename</span> <span class="n">T</span><span class="o">&gt;</span>
<span class="p">{</span>
  <span cla