On Mon, Feb 25, 2013 at 5:34 PM, Diego Elio Pettenò <flamee...@flameeyes.eu> wrote: > No, an example of _how building a whole package with -ffast-math_ was > brought up, and you turned it into "something that it should apply to" > (which is false, and stupid to say).
Perhaps this is part of the issue then. I didn't not read that email and get the impression that the whole package was being built against that flag. If it ever worked I'd be quite impressed (and it would likely be because the build system ignored it most of the time anyway). If that really was the example, then I can understand why my referencing it suggested that I supported this kind of use of the flag. > Software does not work like a single equation. Ever heard of fuzzing? > You know why it works? Because a single different bit can have cascade > effects. Hadn't really thought of it that way, but it makes sense. Propagation of error applies to random error when applied to integrable functions. That breaks down as soon as you stick an if() in your code. But hey, fractals are pretty... Rich
