+
−@node getc
+
−@section @code{getc}
+
−@findex getc
+
−
+
−POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/getc.html}
+
−
+
−Gnulib module: stdio, nonblocking
+
−
+
−Portability problems fixed by Gnulib module @code{stdio}, together with module @code{nonblocking}:
+
−@itemize
+
−@item
+
−When reading from a non-blocking pipe whose buffer is empty, this function
+
−fails with @code{errno} being set to @code{EINVAL} instead of @code{EAGAIN} on
+
−some platforms:
+
−mingw, MSVC 9.
+
−@end itemize
+
−
+
−Portability problems not fixed by Gnulib:
+
−@itemize
+
−@item
+
−C99 and POSIX.1-2001 and later require end-of-file to be sticky, that
+
−is, they require this function to act as if it reads end-of-file if
+
−@code{feof} would return nonzero.  However, on some systems this
+
−function attempts to read from the underlying file descriptor even if
+
−the stream's end-of-file indicator is set.  These systems include
+
−glibc and default Solaris.
+
−@item
+
−On Windows platforms (excluding Cygwin), this function does not set @code{errno}
+
−upon failure.
+
−@end itemize