idn2\_free(3) libidn2 idn2\_free(3)

# [NAME](#NAME)

idn2\_free - API function

# [SYNOPSIS](#SYNOPSIS)

**#include <idn2.h>**

**void idn2\_free(void * ptr);**

# [ARGUMENTS](#ARGUMENTS)

[void * ptr](#void)

pointer to deallocate

# [DESCRIPTION](#DESCRIPTION)

Call [free(3)](/man/os/libidn2/free.3) on the given pointer.

This function is typically only useful on systems where the library malloc heap is different from the library caller malloc heap, which happens on Windows when the library is a separate DLL.

# [REPORTING BUGS](#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)

Copyright © 2002-2025 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](#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/**

2.3.8 libidn2

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Document: idn2_free(3) from libidn2 2.3.8-r10 (Chainguard OS)
Source: https://gitlab.com/libidn/libidn2