div>


  <h3 class="section"><a name="ERROR-HANDLING"></a> Error handling </h3>


<p>The standard encoder does not cover the complete set of Lisp data types: structures, functions, complex numbers, and cons pairs which are not lists and not members of a valid alist are only some of the unencodable data types.  Attempting to encode any such data results in an error.</p>

<div class="api_docstring">
  <p class="api">[condition]
    <code class='api'><span class="api-name"> unencodable-value-error </span></cod