PCRE(3)

NAME
PCRE - Perl-compatible regular expressions

SYNOPSIS

#include <pcre.h>

int pcre_config(int what, void *where);

DESCRIPTION

This function makes it possible for a client program to find out which optional features are available in the version of the PCRE library it is using. Its arguments are as follows:
  what A code specifying what information is required
  where Points to where to put the data The available codes are:
  PCRE_CONFIG_LINK_SIZE Internal link size: 2, 3, or 4
  PCRE_CONFIG_MATCH_LIMIT Internal resource limit
  PCRE_CONFIG_NEWLINE Value of the newline character
  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
                        Threshold of return slots, above
                        which malloc() is used by
                        the POSIX API
  PCRE_CONFIG_STACKRECURSE Recursion implementation (1=stack 0=heap)
  PCRE_CONFIG_UTF8 Availability of UTF-8 support (1=yes 0=no) The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. There is a complete description of the PCRE native API in the pcreapi page, and a description of the POSIX API in the pcreposix page.