Lint: * c-exp.y (parse_number): Avoid shift warning.

* serial.h (struct ttystate):  Declare empty one on DOS.

1 files changed, 12 insertions, 3 deletions

diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 555471f..933007e 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -1042,9 +1042,18 @@ parse_number (p, len, parsed_float, putithere)
      /* If the number is too big to be an int, or it's got an l suffix
 	then it's a long.  Work out if this has to be a long by
 	shifting right and and seeing if anything remains, and the
-	target int size is different to the target long size. */
-
-    if ((TARGET_INT_BIT != TARGET_LONG_BIT && (n >> TARGET_INT_BIT)) || long_p)
+	target int size is different to the target long size.
+
+	In the expression below, we could have tested
+        	(n >> TARGET_INT_BIT)
+	to see if it was zero,
+	but too many compilers warn about that, when ints and longs
+	are the same size.  So we shift it twice, with fewer bits
+	each time, for the same result.  */
+
+    if (   (TARGET_INT_BIT != TARGET_LONG_BIT 
+            && ((n >> 2) >> (TARGET_INT_BIT-2)))   /* Avoid shift warning */
+        || long_p)
       {
          high_bit = ((unsigned LONGEST)1) << (TARGET_LONG_BIT-1);
 	 unsigned_type = builtin_type_unsigned_long;