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idn2_check_version(3)               libidn2              idn2_check_version(3)


NAME

       idn2_check_version - API function


SYNOPSIS

       #include <idn2.h>

       const char * idn2_check_version(const char * req_version);


ARGUMENTS

       const char * req_version
                   version string to compare with, or NULL.


DESCRIPTION

       Check IDN2 library version.  This function can also be used to read out
       the version of the library code used.  See IDN2_VERSION for a suitable
       req_version string, it corresponds to the idn2.h header file version.
       Normally these two version numbers match, but if you are using an
       application built against an older libidn2 with a newer libidn2 shared
       library they will be different.

       Return value: Check that the version of the library is at minimum the
       one given as a string in  req_version and return the actual version
       string of the library; return NULL if the condition is not met.  If
       NULL is passed to this function no check is done and only the version
       string is returned.


REPORTING BUGS

       Report bugs to <help-libidn@gnu.org>.
       General guidelines for reporting bugs: https://www.gnu.org/gethelp/
       Libidn2 home page: https://www.gnu.org/software/libidn2/


COPYRIGHT

       Copyright (C) 2002-2022 Simon Josefsson.
       Copying and distribution of this file, with or without modification,
       are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.


SEE ALSO

       The full documentation for libidn2 is maintained as a Texinfo manual.
       If the info and libidn2 programs are properly installed at your site,
       the command

              info libidn2

       should give you access to the complete manual.  As an alternative you
       may obtain the manual from:

              https://www.gnu.org/software/libidn/libidn2/manual/

libidn2                              2.3.4               idn2_check_version(3)

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