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Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/gnu/types.h')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/gnu/types.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/gnu/types.h b/sysdeps/unix/sysv/linux/alpha/gnu/types.h
index 2af77f70cf..724a869696 100644
--- a/sysdeps/unix/sysv/linux/alpha/gnu/types.h
+++ b/sysdeps/unix/sysv/linux/alpha/gnu/types.h
@@ -79,7 +79,7 @@ typedef unsigned long int __fd_mask;
/* It's easier to assume 8-bit bytes than to get CHAR_BIT. */
#define __NFDBITS (8 * sizeof (__fd_mask))
#define __FDELT(d) ((d) / __NFDBITS)
-#define __FDMASK(d) (1 << ((d) % __NFDBITS))
+#define __FDMASK(d) ((__fd_mask) 1 << ((d) % __NFDBITS))
/* fd_set for select and pselect. */
typedef struct