Api function
#include <idn2.h>
const char * idn2_strerror(int rc);
return code from another libidn2 function.
Convert internal libidn2 error code to a humanly readable string. The returned pointer must not be de-allocated by the caller.
A humanly readable string describing error.
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.