On 2006-12-30 20:07:09 -0500, Robert Dewar wrote: > In my view, this comparison optimization should not have been put in > without justification given that it clearly does affect the semantics > of real code. Indeed if you really see code like > > if (a - 10 < 20) > > in place of > > if (a < 30) > > a very likely explanation is that you are deliberately doing something > strange with wrap around, and should leave it alone.
I disagree concerning your "very likely explanation". This code may come from the use of macros, in which case this has nothing to do with wrap around. -- Vincent Lefèvre <[EMAIL PROTECTED]> - Web: <http://www.vinc17.org/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/> Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)
