mirror of
https://git.savannah.gnu.org/git/gnulib.git
synced 2025-08-18 23:42:00 +03:00
glibc was not the only platform where fprintf(fopen(,"r")) fails to detect errors; cygwin 1.7.9 is another culprit (although it will be fixed for 1.7.10), and I suspect that several other platforms were failing perror2 for the same reason. At this point, there are so many functions affected, and the way to avoid the bug is easy enough (don't pass bogus streams to output-producing functions), that I'm not worried about fixing things other than to document them. * tests/test-perror2.c (main): Relax test on requiring detection of stream errors, and use unbuffered stream. * doc/posix-functions/dprintf.texi (dprintf): Document bug. * doc/posix-functions/fprintf.texi (fprintf): Likewise. * doc/posix-functions/fputc.texi (fputc): Likewise. * doc/posix-functions/fputs.texi (fputs): Likewise. * doc/posix-functions/fputws.texi (fputws): Likewise. * doc/posix-functions/fwprintf.texi (fwprintf): Likewise. * doc/posix-functions/fwrite.texi (fwrite): Likewise. * doc/posix-functions/getopt.texi (getopt): Likewise. * doc/posix-functions/perror.texi (perror): Likewise. * doc/posix-functions/printf.texi (printf): Likewise. * doc/posix-functions/psiginfo.texi (psiginfo): Likewise. * doc/posix-functions/psignal.texi (psignal): Likewise. * doc/posix-functions/putc.texi (putc): Likewise. * doc/posix-functions/putc_unlocked.texi (putc_unlocked): Likewise. * doc/posix-functions/putchar.texi (putchar): Likewise. * doc/posix-functions/putchar_unlocked.texi (putchar_unlocked): Likewise. * doc/posix-functions/puts.texi (puts): Likewise. * doc/posix-functions/putwc.texi (putwc): Likewise. * doc/posix-functions/putwchar.texi (putwchar): Likewise. * doc/posix-functions/vdprintf.texi (vdprintf): Likewise. * doc/posix-functions/vfprintf.texi (vfprintf): Likewise. * doc/posix-functions/vfwprintf.texi (vfwprintf): Likewise. * doc/posix-functions/vprintf.texi (vprintf): Likewise. * doc/posix-functions/vwprintf.texi (vwprintf): Likewise. * doc/posix-functions/wordexp.texi (wordexp): Likewise. * doc/posix-functions/wprintf.texi (wprintf): Likewise. Signed-off-by: Eric Blake <eblake@redhat.com>
26 lines
665 B
Plaintext
26 lines
665 B
Plaintext
@node putwc
|
|
@section @code{putwc}
|
|
@findex putwc
|
|
|
|
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/putwc.html}
|
|
|
|
Gnulib module: ---
|
|
|
|
Portability problems fixed by Gnulib:
|
|
@itemize
|
|
@end itemize
|
|
|
|
Portability problems not fixed by Gnulib:
|
|
@itemize
|
|
@item
|
|
This function is missing on some platforms:
|
|
IRIX 5.3, Solaris 2.5.1, Cygwin 1.5.x, BeOS.
|
|
@item
|
|
On AIX and Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot
|
|
accommodate all Unicode characters.
|
|
@item
|
|
On some platforms, this function does not set @code{errno} or the
|
|
stream error indicator on attempts to write to a read-only stream:
|
|
Cygwin 1.7.9.
|
|
@end itemize
|