pcre/doc/html/pcre_jit_stack_alloc.html

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<title>pcre_jit_stack_alloc specification</title>
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<h1>pcre_jit_stack_alloc man page</h1>
<p>
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<br>
<br><b>
SYNOPSIS
</b><br>
<P>
<b>#include &#60;pcre.h&#62;</b>
</P>
<P>
<b>pcre_jit_stack *pcre_jit_stack_alloc(int <i>startsize</i>,</b>
<b> int <i>maxsize</i>);</b>
<br>
<br>
<b>pcre16_jit_stack *pcre16_jit_stack_alloc(int <i>startsize</i>,</b>
<b> int <i>maxsize</i>);</b>
<br>
<br>
<b>pcre32_jit_stack *pcre32_jit_stack_alloc(int <i>startsize</i>,</b>
<b> int <i>maxsize</i>);</b>
</P>
<br><b>
DESCRIPTION
</b><br>
<P>
This function is used to create a stack for use by the code compiled by the JIT
optimization of <b>pcre[16|32]_study()</b>. The arguments are a starting size for
the stack, and a maximum size to which it is allowed to grow. The result can be
passed to the JIT run-time code by <b>pcre[16|32]_assign_jit_stack()</b>, or that
function can set up a callback for obtaining a stack. A maximum stack size of
512K to 1M should be more than enough for any pattern. For more details, see
the
<a href="pcrejit.html"><b>pcrejit</b></a>
page.
</P>
<P>
There is a complete description of the PCRE native API in the
<a href="pcreapi.html"><b>pcreapi</b></a>
page and a description of the POSIX API in the
<a href="pcreposix.html"><b>pcreposix</b></a>
page.
<p>
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