@node towctrans
@subsection @code{towctrans}
@findex towctrans

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/towctrans.html}

Gnulib module: towctrans
@mindex towctrans

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, HP-UX 11.00, mingw, MSVC 9, Android 7.1.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot
accommodate all Unicode characters.
@mindex c32_apply_mapping
However, the Gnulib function @code{c32_apply_mapping}, provided by Gnulib
module @code{c32_apply_mapping}, operates on 32-bit wide characters and
therefore does not have this limitation.
@end itemize
