g++ optimization issue??

[Dave Korn]

> -----Original Message-----
> From: gcc-owner On Behalf Of ColinLaney
> Sent: 17 December 2004 12:13

> I'm sorry if this has come up before and/or is well known or 
> obvious. If so I would appreciated to be pointed in the right 
> direction.
> 
> When compiled with "-O6" 

  You do understand that there aren't any optimisation levels > 3, don't you?

> the program below produces the following output:
> 203744051  0.440158
> 203744051  0.633306
> 203744051  0.633306
> 203744051  0.440158
> 
> 
> I've added some comments on what I think went wrong. 

  Have you read 'What every computer scientist should know about floating
point'?

http://tinyurl.com/4sw7n


    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....