PCRE2_GET_ERROR_MESSAGE(3)                    FreeBSD Library Functions Manual

NAME
       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS
       #include <pcre2.h>

       int pcre2_get_error_message(int errorcode, PCRE2_UCHAR *buffer,
         PCRE2_SIZE bufflen);

DESCRIPTION
       This function provides a textual error message for each PCRE2 error
       code.  Compilation errors are positive numbers; UTF formatting errors
       and matching errors are negative numbers. The arguments are:

         errorcode   an error code (positive or negative)
         buffer      where to put the message
         bufflen     the length of the buffer (code units)

       The function returns the length of the message in code units, excluding
       the trailing zero, or the negative error code PCRE2_ERROR_NOMEMORY if
       the buffer is too small. In this case, the returned message is
       truncated (but still with a trailing zero). If errorcode does not
       contain a recognized error code number, the negative value
       PCRE2_ERROR_BADDATA is returned.

       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 10.30                      24 March 2017      PCRE2_GET_ERROR_MESSAGE(3)