OpenEuphoria

Re: Bug in Safe.e discovered today

• Posted by Robert Craig <rds at RapidEuphoria.com> Dec 29, 2005
• 566 views

Al Getz wrote:
> I checked all my 2.5 files and couldnt find any change.
> The files were all from around the end of 2004.
> 
> What was the 'official' change that fixed this?

If you do a fc on safe.e between 2.4 and 2.5
you'll see that several lines have changed. 

I think the relevant change was to add an
if-statement to test if len is 0
at the start of safe_address()
I'm not sure if that was the only relevant change.

function safe_address(atom start, integer len)
-- is it ok to read/write all addresses from start to start+len-1?
    atom block_start, block_upper, upper
    sequence block

    if len = 0 then
        return OK
    end if

    ...

Regards,
   Rob Craig
   Rapid Deployment Software
   http://www.RapidEuphoria.com