OpenEuphoria

Re: bug in position()

• Posted by jacques deschênes <desja at globetrotter.net> Sep 25, 2005
• 453 views

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
> 
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