s the variable of type double that should be
        converted as its first argument (<code class="literal">dbl</code>). As the second
        argument (<code class="literal">np</code>), the function receives a pointer to the
        decimal variable that 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-DECCVINT"><span class="term"><code class="function">dec