On 2006-12-20 23:40:45 +0100, Marcin Dalecki wrote: > However it's a quite common mistake to forget how > "bad" floats "model" real numbers.
It depends on what you are doing. For instance, thanks to the IEEE-754 standard, it is possible to perform exact computations with floats. By doing unsafe optimizations on floats, gcc may break things. I need to use -ffloat-store on some of my programs (which are not even based on the IEEE-754 standard), otherwise they don't work at all. -- 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)