1<html>
2<head>
3<title>pcre_jit_stack_alloc specification</title>
4</head>
5<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6<h1>pcre_jit_stack_alloc man page</h1>
7<p>
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10<p>
11This page is part of the PCRE HTML documentation. It was generated automatically
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14<br>
15<br><b>
16SYNOPSIS
17</b><br>
18<P>
19<b>#include &#60;pcre.h&#62;</b>
20</P>
21<P>
22<b>pcre_jit_stack *pcre_jit_stack_alloc(int <i>startsize</i>,</b>
23<b>     int <i>maxsize</i>);</b>
24<br>
25<br>
26<b>pcre16_jit_stack *pcre16_jit_stack_alloc(int <i>startsize</i>,</b>
27<b>     int <i>maxsize</i>);</b>
28<br>
29<br>
30<b>pcre32_jit_stack *pcre32_jit_stack_alloc(int <i>startsize</i>,</b>
31<b>     int <i>maxsize</i>);</b>
32</P>
33<br><b>
34DESCRIPTION
35</b><br>
36<P>
37This function is used to create a stack for use by the code compiled by the JIT
38optimization of <b>pcre[16|32]_study()</b>. The arguments are a starting size for
39the stack, and a maximum size to which it is allowed to grow. The result can be
40passed to the JIT run-time code by <b>pcre[16|32]_assign_jit_stack()</b>, or that
41function can set up a callback for obtaining a stack. A maximum stack size of
42512K to 1M should be more than enough for any pattern. For more details, see
43the
44<a href="pcrejit.html"><b>pcrejit</b></a>
45page.
46</P>
47<P>
48There is a complete description of the PCRE native API in the
49<a href="pcreapi.html"><b>pcreapi</b></a>
50page and a description of the POSIX API in the
51<a href="pcreposix.html"><b>pcreposix</b></a>
52page.
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56