Re: need help in tutorial(alpha)

[Emmanuele Bassi <ebassi gmail com>]

On Thu, 2006-05-18 at 03:41 +0200, A. Pagaltzis wrote:
> * Mat Wilson <mat jnm com au> [2006-05-18 03:10]:
> >         # We do not have a Glib::CLAMP function, so we provide it here.
> >         sub clamp ($val, $low, $high)
>
> That is a syntax error in Perl.

Yep, my bad.  I had the patch to fix it sitting in my inbox for a while
and never really got around to apply it to CVS.

> >         {
> >             return (($val > $high) ? $high : (($val < $low) ? $low : $val));
> >         }
>
>     use List::Util qw( min max );
>     # ...
>     return min $low, max $high, $val;

clamp() is the direct porting of the GLib CLAMP() macro.

> > I think the error is the lines
> >
> >             # This sets the adjustment and make it emit the "changed" signal to
> >             # reconfigure all the widgets that are attached to this signal.
> >             $set->set_value(clamp ($set->value,
> >                                    $set->upper - $set->page_size,
> >                                    $set->lower));
> >         
> > to do with the commas
>
> I donât see any error in there.

... as it's working in C. ;-)

Ciao,
 Emmanuele.

-- 
Emmanuele Bassi - <ebassi gmail com>
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