de" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a> &amp;p_k = *(contact_p_[k]);</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;                    <a class="code" href="class_std_large_vec_3_01_vecd_01_4.html">StdLargeVec&lt;Vecd&gt;</a> &amp;vel_n_k = *(contact_vel_n_[k]);</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;                    <a class="code" href="class_s_p_h_1_1_fluid.html">Fluid</a> *fluid_k =