OpenEuphoria

Re: simple eurphoria question

• Posted by Chris Bensler <bensler at nt.net> Dec 10, 2006
• 701 views

Ricardo M. Forno wrote:
> 
> Chris Bensler wrote:
> > 
> > Ricardo M. Forno wrote:
> > > Yep, you are right.
> > > I performed the following test of candidate good functions for this task.
> > > The results showed all three were correct, but f2 was the fastest:
> > 
> > Did you try changing the order of the code in your bench tests, to verify
> > that
> > it wasn't affecting your results? I've found it to be a major factor in any
> > kind of trivial timing test.
> > 
> > Also, it should be slightly faster if the last return statement in f2() was
> > inside of an if-branch..
> > As Matt (I beleive) pointed out with his winning code from the christmas
> > contest
> > a few years ago.
> > 
> > }}}
<eucode>
> > function f2(atom a)
> >   if a < 0 then
> >     return - floor(- a)
> >   else
> >     return floor(a)
> >   end if
> > end function
> > </eucode>
{{{

> > 
> > Chris Bensler
> > ~ The difference between ordinary and extraordinary is that little extra ~
> > <a href="http://empire.iwireweb.com">http://empire.iwireweb.com</a> - Empire
> for Euphoria</font></i>
> 
> Hi Chris.
> I tested both versions before posting this mail,
> with the return inside the if and outside it.
> Both had identical timings.
> 
> Regarding the code order, what change would you suggest?
> Regards.

Sorry, nevermind the code order. I can't duplicate the results.

However, it's worth mentioning that in my bench tests, f1() was consistently
faster than f2() when using exw3.0.1 and f2() is faster than f1() when using
exw2.3
Either way, the difference is so marginal that I don't think it matters.

Chris Bensler
~ The difference between ordinary and extraordinary is that little extra ~
http://empire.iwireweb.com - Empire for Euphoria