ceil-ieee tests: More tests.

[gnulib.git] / lib / freadahead.c

diff --git a/lib/freadahead.c b/lib/freadahead.c
index 44656e5..2ba8b34 100644 (file)
--- a/lib/freadahead.c
+++ b/lib/freadahead.c
@@ -80,6 +80,10 @@ freadahead (FILE *fp)
   return (fp->__pushed_back
           ? fp->__get_limit - fp->__pushback_bufp + 1
           : fp->__get_limit - fp->__bufp);
+#elif defined EPLAN9                /* Plan9 */
+  if (fp->state == 4 /* WR */ || fp->rp >= fp->wp)
+    return 0;
+  return fp->wp - fp->rp;
 #elif defined SLOW_BUT_NO_HACKS     /* users can define this */
   abort ();
   return 0;