@subheading stringprep_convert
@anchor{stringprep_convert}
@deftypefun {char *} {stringprep_convert} (const char * @var{str}, const char * @var{to_codeset}, const char * @var{from_codeset})
@var{str}: input zero-terminated string.

@var{to_codeset}: name of destination character set.

@var{from_codeset}: name of origin character set, as used by @code{str}.

Convert the string from one character set to another using the
system's @code{iconv()} function.

@strong{Return value:} Returns newly allocated zero-terminated string which
is @code{str} transcoded into to_codeset.
@end deftypefun

