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-rw-r--r--bits/select.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/bits/select.h b/bits/select.h
index 47e7ded..8a4e537 100644
--- a/bits/select.h
+++ b/bits/select.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2001, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -30,6 +30,8 @@
for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \
__FDS_BITS (__arr)[__i] = 0; \
} while (0)
-#define __FD_SET(d, s) (__FDS_BITS (s)[__FDELT(d)] |= __FDMASK(d))
-#define __FD_CLR(d, s) (__FDS_BITS (s)[__FDELT(d)] &= ~__FDMASK(d))
-#define __FD_ISSET(d, s) ((__FDS_BITS (s)[__FDELT(d)] & __FDMASK(d)) != 0)
+#define __FD_SET(d, s) \
+ ((void) (__FDS_BITS (s)[__FDELT(d)] |= __FDMASK(d)))
+#define __FD_CLR(d, s) \
+ ((void) (__FDS_BITS (s)[__FDELT(d)] &= ~__FDMASK(d)))
+#define __FD_ISSET(d, s) ((__FDS_BITS (s)[__FDELT (d)] & __FDMASK (d)) != 0)