Clojure

Reported by achim.passen, Jan 10, 2009
There are some corner cases where "-"  overflows but does not throw an "integer overflow" 
exception:

user=> (- Integer/MAX_VALUE Integer/MIN_VALUE) 
-1 
user=> (- Long/MAX_VALUE Long/MIN_VALUE) 
-1 

The problem seems to be that negating MIN_VALUE yields MIN_VALUE   
again, so it slips through the overflow check. The patch adds extra checks for MIN_VALUE.

version: SVN r1205

http://groups.google.com/group/clojure/browse_thread/thread/3db6cb2b71008e73

 overflow.diff
693 bytes Download
Comment 1 by richhickey, Jan 14, 2009
patch applied - svn 1212 - thanks!
Status: Fixed