An adaptor over an existing iterator that changes the step unit.">step_iterator_adaptor&lt;D,Iterator,SFn&gt;</a>&amp; p1, <span class="keyword">const</span> <a class="code" href="g_i_l_0036.html" title="An adaptor over an existing iterator that changes the step unit.">step_iterator_adaptor&lt;D,Iterator,SFn&gt;</a>&amp; p2) { 
<a name="l00080"></a>00080     <span class="keywordflow">return</span> p1.<a class="code" href="g_i_l_0036.html#4d9de021528d2fae8de7b71dbc2e3909">step</a>()&gt;0 ? p1.base()&gt; p2.b