<dt class="spec value" id="val-fix_var"><a href="#val-fix_var" class="anchor"></a><code><span class="keyword">val</span> fix_var : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> string <span>&#45;&gt;</span> <a href="../Libabsolute/Q/index.html#type-t">Libabsolute.Q.t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dd><p><code>fix_var csp var cst</code> builds a new csp identical to the <code>csp</code> where all the occurences of the variable <code>var</code> are replaced