---
name: "stringprep_check_version"
section: "3"
platform: "linux"
package: "libidn"
version: "1.44-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/stringprep_check_version"
---

# stringprep\_check\_version(3)

API function

## NAME

stringprep\_check\_version - API function

## SYNOPSIS

**#include \<stringprep.h\>**

**const char \* stringprep\_check\_version(const char \*** *req\_version***);**

## ARGUMENTS

- const char \* req\_version

  Required version number, or NULL.

## DESCRIPTION

Check that the version of the library is at minimum the requested one and return the version string; return NULL if the condition is not satisfied.  If a NULL is passed to this function, no check is done, but the version string is simply returned.

See **STRINGPREP\_VERSION** for a suitable  *req\_version* string.

Return value: Version string of run-time library, or NULL if the run-time library does not meet the required version number.

## REPORTING BUGS

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

## COPYRIGHT

Copyright © 2002-2026 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 **libidn** is maintained as a Texinfo manual.  If the **info** and **libidn** programs are properly installed at your site, the command

-

  **info libidn**

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

-

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