Libabsolute/Constraint/index.html#type-cmpop">Libabsolute.Constraint.cmpop</a> * <a href="../../Libabsolute/Expr/index.html#type-t">Libabsolute.Expr.t</a></code></dt><dt class="spec value" id="val-to_constraint"><a href="#val-to_constraint" class="anchor"></a><code><span class="keyword">val</span> to_constraint : <span>Oct.t Apronext.Abstractext.t</span> <span>&#45;&gt;</span> <a href="../../Libabsolute/Constraint/index.html#type-t">Libabsolute.Constraint.t</a></code></dt><dt class="spec value" id="val-empt