pcre2_set_callout specification

# pcre2_set_callout man page

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## 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.

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