1<html>
2<head>
3<title>pcre2_substring_length_bynumber specification</title>
4</head>
5<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6<h1>pcre2_substring_length_bynumber man page</h1>
7<p>
8Return to the <a href="index.html">PCRE2 index page</a>.
9</p>
10<p>
11This page is part of the PCRE2 HTML documentation. It was generated
12automatically from the original man page. If there is any nonsense in it,
13please consult the man page, in case the conversion went wrong.
14<br>
15<br><b>
16SYNOPSIS
17</b><br>
18<P>
19<b>#include &#60;pcre2.h&#62;</b>
20</P>
21<P>
22<b>int pcre2_substring_length_bynumber(pcre2_match_data *<i>match_data</i>,</b>
23<b>  uint32_t <i>number</i>, PCRE2_SIZE *<i>length</i>);</b>
24</P>
25<br><b>
26DESCRIPTION
27</b><br>
28<P>
29This function returns the length of a matched substring, identified by number.
30The arguments are:
31<pre>
32  <i>match_data</i>   The match data block for the match
33  <i>number</i>       The substring number
34  <i>length</i>       Where to return the length, or NULL
35</pre>
36The third argument may be NULL if all you want to know is whether or not a
37substring is set. The yield is zero on success, or a negative error code
38otherwise. After a partial match, only substring 0 is available.
39</P>
40<P>
41There is a complete description of the PCRE2 native API in the
42<a href="pcre2api.html"><b>pcre2api</b></a>
43page and a description of the POSIX API in the
44<a href="pcre2posix.html"><b>pcre2posix</b></a>
45page.
46<p>
47Return to the <a href="index.html">PCRE2 index page</a>.
48</p>
49