&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> unit</code></dt><dt class="spec value" id="val-to_bexpr"><a href="#val-to_bexpr" class="anchor"></a><code><span class="keyword">val</span> to_bexpr : <a href="../../../Csp/index.html#type-var">Csp.var</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <span><span>(<a href="../../../Csp/index.html#type-expr">Csp.expr</a> * <a href="../../../Csp/index.html#type-cmpop">Csp.cmpop</a> * <a href="../../../Cs