OpenEuphoria

Re: bug in position()

• Posted by Chris Burch <chriscrylex at aol.com> Sep 25, 2005
• 506 views

jacques deschênes wrote:
> 
> The bug that get_position() return the right line number event if its greater
> than 25 so position() should not crash when passing it parameters obtained
> from
> get_position() as shown in my exemple.
> 
> jacques
> 
> 
> Chris Burch wrote:
> > 
> > jacques deschênes wrote:
> > > 
> > > 
> > > Hi Robert,
> > > As windows consoles may have more than 25 lines, there is a bug with the
> > > actual implementation
> > > of position().
> > > If line is greater than 25 euphoria crash. (tested on windows xp pro)
> > > 
> > > exemple:
> > > }}}
<eucode>
> > > include graphics.e
> > > sequence pos
> > > pos = get_position()
> > > position(pos[1],pos[2]-1) -- crash if pos[1]>25
> > > </eucode>
{{{

> > > 
> > > regards,
> > > Jacques Deschênes
> > > 
> > > p.s. Folks forget about my previous message, I read message sequentially
> > > and don't
> > > check other's 
> > > reply before replying.
> > > 
> > 
> > Hi
> > 
> > I've never thought of this a bug, just a feature of the language. Some
> > screens have lines
> > > 25, and if you have set the screen to one of these modes, then you can
> > > write to >
> > 25. SCREEN_LINES tells you how long the screen is
> > 
> > SCREEN_LINES = vid_conf[VC_LINES]
> > SCREEN_COLS = vid_conf[VC_COLUMNS]
> > 
> > 
> > then just wrap position with a check for the length of the screen to prevent
> > crashes.
> > 
> > Please, any changes should not affect the abilty to write beyond 25 lines
> > 
> > Chris
> > 
> > <a
> > href="http://members.aol.com/chriscrylex/euphoria.htm">http://members.aol.com/chriscrylex/euphoria.htm</a>
> > <a href="http://uboard.proboards32.com/">http://uboard.proboards32.com/</a>
> > <a
> > href="http://members.aol.com/chriscrylex/EUSQLite/eusql.html">http://members.aol.com/chriscrylex/EUSQLite/eusql.html</a>
> >
> 

Hi

Yes, I realised that after I'd pressed the send now button, then ran out to take
my son to rugby etc etc

Chris


http://members.aol.com/chriscrylex/euphoria.htm
http://uboard.proboards32.com/
http://members.aol.com/chriscrylex/EUSQLite/eusql.html