Hash :
1480501f
Author :
Date :
2024-12-24T14:45:58
doc: Document mingw with MSVCRT vs. mingw with UCRT. * doc/posix-functions/btowc.texi: Add more details regarding mingw. * doc/posix-functions/fopen.texi: Likewise. * doc/posix-functions/mbrtowc.texi: Likewise. * doc/posix-functions/mbsinit.texi: Likewise. * doc/posix-functions/modf.texi: Likewise. * doc/posix-functions/modff.texi: Likewise. * doc/posix-functions/round.texi: Likewise. * doc/posix-functions/roundf.texi: Likewise. * doc/posix-functions/swprintf.texi: Likewise. * doc/posix-functions/timespec_get.texi: Likewise. * doc/posix-functions/wcrtomb.texi: Likewise.
@node wcrtomb
@subsection @code{wcrtomb}
@findex wcrtomb
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/wcrtomb.html}
Gnulib module: wcrtomb
@mindex wcrtomb
Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, HP-UX 11.00, mingw.
@item
This function produces wrong characters in the C locale on some platforms:
Android 4.3.
@item
This function returns 0 when the first argument is NULL in some locales on some platforms:
Solaris 11.3.
@item
This function does not ignore the second argument when the first argument is NULL on some platforms:
mingw with UCRT, MSVC 14.
@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 c32rtomb
However, the ISO C11 function @code{c32rtomb}, provided by Gnulib module
@code{c32rtomb}, operates on 32-bit wide characters and therefore does not have
this limitation.
@end itemize