  <span class="keyword">public</span> <span class="keywordtype">string</span> <a class="code" href="classGoogle_1_1OrTools_1_1Util_1_1Domain.html#a18220b86ab5378509a68e4afa4a2fb5b">ToString</a>() {</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <span class="keywordtype">string</span> ret = <a class="code" href="classGoogle_1_1OrTools_1_1Util_1_1operations__research__utilPINVOKE.html">operations_research_utilPINVOKE</a>.<a class="code" href="classGoogle_1_1OrTools_1_1