if the message was truncated.
</p>
<h2><a name="SEC8" href="#TOC1">MEMORY USAGE</a></h2>
<p>
Compiling a regular expression causes memory to be allocated and associated
with the <i>preg</i> structure. The function <b>pcre2_regfree()</b> frees all
such memory, after which <i>preg</i> may no longer be used as a compiled
expression.
</p>
<h2><a name="SEC9" href="#TOC1">AUTHOR</a></h2>
<p>
Philip Hazel
<br>
Retired from University Computing Service
<br>
Cambridge, England.
<br>
</p>
<h2><a name="SEC10" href="#T