OpenEuphoria

RE: BUG! Erratic for loop behavior

• Posted by Chris Bensler <bensler at mail.com> Mar 23, 2002
• 511 views

function magnify(atom a)
 sequence str
 integer f
   str = sprintf("%f",a)
   f = find('.',str)
   if f then
      a *= power(10,length(str)-f)
   end if
   return a
end function

It works for up to 6 decimal places.
34.1234567 will not be fully magnified.


Chris


Dan Moyer wrote:
> off the top of my head:
> change the vars to sequence, check for '.', count how many to right of 
> '.',
> multiply by 10 to the how many for the MAX number in any var?
> 
> Dan
> 
> ----- Original Message -----
> From: "Chris Bensler" <bensler at mail.com>
> To: "EUforum" <EUforum at topica.com>
> Sent: Saturday, March 23, 2002 9:02 PM
> Subject: RE: BUG! Erratic for loop behavior
> 
> 
> >
> > for i = var1 to var 2 by var3 do
> > end for
> >
> > how much should the vars be multiplied by?
> >
> > Chris
> >
> > Dan Moyer wrote:
> > > Andy,
> > >
> > > Although I assume this is at least obvious, you could just do this:
> > >
> > > for i = 10*31.1 to 10*34.2  do
> > >   ?i/10
> > > end for
> > >
> > > Same for whatever max "level" of floating point you have, ie, if *any*
> > > value
> > > goes out to .001,multiply all by 1000, then divide, etc.
> > >
> > > Maybe there's some good reason that doesn't occur to me offhand why this
> > > won't work?
> > >
> > > Dan Moyer
> > >
> > > ----- Original Message -----
> > > From: "Andy Serpa" <renegade at earthling.net>
> > > To: "EUforum" <EUforum at topica.com>
> > > Sent: Saturday, March 23, 2002 11:19 AM
> > > Subject: BUG! Erratic for loop behavior
> > >
> > >
> > > > Hello,
> > > >
> > > >
> > > > The output of this loop:
> > > > ------------------------------
> > > > for i = 9.4 to 10.0 by .1 do
> > > >   ? i
> > > > end for
> > > > ------------------------------
> > > > stops at 10, as expected.
> > > >
> > > >
> > > > The output of this loop:
> > > > ------------------------------
> > > > for i = 31.1 to 34.2 by .1 do
> > > >   ? i
> > > > end for
> > > > ------------------------------
> > > > stops at 34.1 (!), NOT as expected.
> > > >
> > > >
> > > > The output of this loop:
> > > > ------------------------------
> > > > for i = 131.1 to 134.2 by .1 do
> > > >   ? i
> > > > end for
> > > > ------------------------------
> > > > stops at 134.2, as expected.
> > > >
> > > >
> > > > The output of this loop:
> > > > ------------------------------
> > > > for i = 60.0 to 64.5 by .1 do
> > > >   ? i
> > > > end for
> > > > ------------------------------
> > > > stops at 64.4, NOT as expected.
> > > >
> > > >
> > > > I've verified this on exw.exe & ex.exe, as well as translated to C.
> It
> > > > looks like an outright bug to me.
> > > >
> > >
> >
> >
> >
> 
> 
>