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3<title>pcre2_match_data_create_from_pattern specification</title>
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6<h1>pcre2_match_data_create_from_pattern man page</h1>
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11This page is part of the PCRE2 HTML documentation. It was generated
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15<br><b>
16SYNOPSIS
17</b><br>
18<P>
19<b>#include &#60;pcre2.h&#62;</b>
20</P>
21<P>
22<b>pcre2_match_data *pcre2_match_data_create_from_pattern(</b>
23<b>  const pcre2_code *<i>code</i>, pcre2_general_context *<i>gcontext</i>);</b>
24</P>
25<br><b>
26DESCRIPTION
27</b><br>
28<P>
29This function creates a new match data block, which is used for holding the
30result of a match. The first argument points to a compiled pattern. The number
31of capturing parentheses within the pattern is used to compute the number of
32pairs of offsets that are required in the match data block. These form the
33"output vector" (ovector) within the match data block, and are used to identify
34the matched string and any captured substrings.
35</P>
36<P>
37The second argument points to a general context, for custom memory management,
38or is NULL to use the same memory allocator as was used for the compiled
39pattern. The result of the function is NULL if the memory for the block could
40not be obtained.
41</P>
42<P>
43There is a complete description of the PCRE2 native API in the
44<a href="pcre2api.html"><b>pcre2api</b></a>
45page and a description of the POSIX API in the
46<a href="pcre2posix.html"><b>pcre2posix</b></a>
47page.
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