Provided by: libpcre2-dev_10.42-4ubuntu2.1_amd64 

NAME
PCRE2 - Perl-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
void pcre2_substring_free(PCRE2_UCHAR *buffer);
DESCRIPTION
This is a convenience function for freeing the memory obtained by a previous call to
pcre2_substring_get_byname() or pcre2_substring_get_bynumber(). Its only argument is a pointer to the
string. If the argument is NULL, the function does nothing.
There is a complete description of the PCRE2 native API in the pcre2api page and a description of the
POSIX API in the pcre2posix page.
PCRE2 10.32 28 June 2018 PCRE2_SUBSTRING_FREE(3)