Merge from emacs-23; up to 2010-06-08T03:06:47Z!dann@ics.uci.edu.

[bpt/emacs.git] / lib / intprops.h

diff --git a/lib/intprops.h b/lib/intprops.h
index 511a5aa..58b1b3f 100644 (file)
--- a/lib/intprops.h
+++ b/lib/intprops.h
@@ -49,11 +49,11 @@
         ? (t) 0 \
         : TYPE_SIGNED_MAGNITUDE (t) \
         ? ~ (t) 0 \
-        : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+        : ~ TYPE_MAXIMUM (t)))
 # define TYPE_MAXIMUM(t) \
   ((t) (! TYPE_SIGNED (t) \
         ? (t) -1 \
-        : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
+        : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
 
 /* Return zero if T can be determined to be an unsigned type.
    Otherwise, return 1.