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6ab6766a05
* doc/posix-functions/fflush.texi: Document possible crash in handling mode other than DEFAULT_HANDLING. * doc/posix-functions/fgetc.texi: Likewise. * doc/posix-functions/fputc.texi: Likewise. * doc/posix-functions/fread.texi: Likewise. * doc/posix-functions/fwrite.texi: Likewise.
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
@node fflush
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@section @code{fflush}
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@findex fflush
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fflush.html}
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Gnulib module: fflush
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Portability problems fixed by Gnulib:
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@itemize
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@item
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@code{fflush} followed by @code{fseek} or @code{fseeko}, applied to an input
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stream, should have the effect of positioning the underlying file descriptor.
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It doesn't do this on some platforms.
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@item
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@code{fflush} on an input stream changes the position of the stream to the
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end of the previous buffer, on some platforms: mingw, MSVC 9.
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@item
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@code{fflush} on an input stream right after @code{ungetc} does not discard
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the @code{ungetc} buffer, on some platforms:
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MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Cygwin 1.5.25-10.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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@code{fflush}, @code{ftell}, @code{ftello}, @code{fgetpos} behave incorrectly
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on input streams that are opened in @code{O_TEXT} mode and whose contents
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contains Unix line terminators (LF), on some platforms: mingw, MSVC 9.
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@item
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On Windows platforms (excluding Cygwin), this function does not set @code{errno}
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upon failure.
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@item
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This function crashes if the stream's file descriptor has already been
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closed, if @code{MSVC_INVALID_PARAMETER_HANDLING} is
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@code{HAIRY_LIBRARY_HANDLING} or @code{SANE_LIBRARY_HANDLING},
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on some platforms:
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MSVC 9.
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@item
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@code{fflush} on an input stream right after @code{ungetc} does not discard
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the @code{ungetc} buffer, on some platforms:
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AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, mingw, MSVC 9.
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@end itemize
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