gic. You can free the
patterns and stacks in any order, anytime. Just <i>do not</i> call
<b>pcre_exec()</b> with a pattern pointing to an already freed stack, as that
will cause SEGFAULT. (Also, do not free a stack currently used by
<b>pcre_exec()</b> in another thread). You can also replace the stack for a
pattern at any time. You can even free the previous stack before assigning a
replacement.
</P>
<P>
(5) Should I allocate/free a stack every time before/after calling
<b>pcre_exec()</b>?
<br>
<br>
No, bec