t should hold the result of the operation.
       </p><p>
        The function returns 0 on success and a negative value if the
        conversion failed.
       </p></dd><dt id="ECPG-INFORMIX-FUNCTIONS-DECCVLONG"><span class="term"><code class="function">deccvlong</code></span> <a href="#ECPG-INFORMIX-FUNCTIONS-DECCVLONG" class="id_link">#</a></dt><dd><p>
        Convert a value of type long to a value of type decimal.
</p><pre class="synopsis">
int deccvlong(long lng, decimal *np);
</pre><p>
        The f