OpenEuphoria

Re: BUG! Erratic for loop behavior

• Posted by Dan Moyer <DANIELMOYER at prodigy.net> Mar 23, 2002
• 445 views

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.
>