NAME

       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS

       #include <pcre2.h>

       int pcre2_set_callout(pcre2_match_context *mcontext,
         int (*callout_function)(pcre2_callout_block *),
         void *callout_data);

DESCRIPTION

       This function sets the callout fields in a match context (the first argument).  The second
       argument specifies a callout function, and the third argument is an opaque data item  that
       is passed to it. The result of this function is always zero.

       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.