optimise for constant `oldval'.
(always_swap): Remove `volatile'; add `memory' clobber.
+1999-07-08 Andreas Schwab <schwab@suse.de>
+
+ * libio/iofopncook.c (fopencookie): Set _fileno to -2.
+
+ * libio/libioP.h (_IO_file_is_open): Only check for -1, not all
+ negative numbers.
+
+ * libio/fileops.c (_IO_new_file_close_it): Set _fileno to -1, not
+ EOF.
+ * libio/oldfileops.c (_IO_old_file_close_it): Likewise.
+
1999-07-08 Andreas Schwab <schwab@suse.de>
* libio/fileno.c: Return -1 instead of EOF and set errno if the