5 POSIX specification: @url{http://www.opengroup.org/susv3xsh/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.
19 @code{fflush} on an input stream right after @code{ungetc} does not discard
20 the @code{ungetc} buffer, on some platforms:
21 MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, Cygwin.
25 Portability problems not fixed by Gnulib:
28 @code{fflush}, @code{ftell}, @code{ftello}, @code{fgetpos} behave incorrectly
29 on input streams that are opened in @code{O_TEXT} mode and whose contents
30 contains Unix line terminators (LF), on some platforms: mingw.
32 On Windows platforms (excluding Cygwin), this function does not set @code{errno}
35 @code{fflush} on an input stream right after @code{ungetc} does not discard
36 the @code{ungetc} buffer, on some platforms:
37 AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw.