5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fflush.html}
9 Portability problems fixed by Gnulib:
12 @code{fflush} followed by @code{fseek} or @code{fseeko}, applied to an input
13 stream, should have the effect of positioning the underlying file descriptor.
14 It doesn't do this on some platforms.
16 @code{fflush} on an input stream changes the position of the stream to the
17 end of the previous buffer, on some platforms: mingw, MSVC 9.
19 @code{fflush} on an input stream right after @code{ungetc} does not discard
20 the @code{ungetc} buffer, on some platforms:
21 Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Cygwin 1.5.25-10.
24 Portability problems not fixed by Gnulib:
27 @code{fflush}, @code{ftell}, @code{ftello}, @code{fgetpos} behave incorrectly
28 on input streams that are opened in @code{O_TEXT} mode and whose contents
29 contains Unix line terminators (LF), on some platforms: mingw, MSVC 9.
31 On Windows platforms (excluding Cygwin), this function does not set @code{errno}
34 This function crashes if the stream's file descriptor has already been
35 closed, if @code{MSVC_INVALID_PARAMETER_HANDLING} is
36 @code{HAIRY_LIBRARY_HANDLING} or @code{SANE_LIBRARY_HANDLING},
40 @code{fflush} on an input stream right after @code{ungetc} does not discard
41 the @code{ungetc} buffer, on some platforms:
42 AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, mingw, MSVC 9.