begin(); col_sum &lt; A_col_sums.end(); ++col_sum){
<a name="l00112"></a>00112       <span class="keywordflow">if</span>(*col_sum == 0) <span class="keywordflow">continue</span>;
<a name="l00113"></a>00113 
<a name="l00114"></a>00114       <span class="keywordtype">int</span> idx = col_sum - A_col_sums.begin();
<a name="l00115"></a>00115       column_atom_idz.push_back(idx);
<a name="l00116"></a>00116       atom_vci atom = A_prot-&gt;atoms_begin() + idx;
<a name="l00117"></a>00117       
<a name="l00118"></