      Upon success, the function returns 0 and a negative value if an
        error occurred.
       </p><p>
        Internally, this function uses the <a class="xref" href="ecpg-pgtypes.html#PGTYPESTIMESTAMPFMTASC"><code class="function">PGTYPEStimestamp_fmt_asc</code></a> function. See the reference there for
        information on what format mask specifiers can be used.
       </p></dd><dt id="ECPG-INFORMIX-FUNCTIONS-INTOASC"><span class="term"><code class="function">intoasc</code></span> <a href="#ECPG