OpenEuphoria

RE: pass by reference

• Posted by bensler at mail.com Feb 20, 2002
• 487 views

if EU had a builtin VOID variable, it would solve BOTH of these.
Variables would always initialize to VOID (not initialized).

atom Test

if Test = VOID then
   -- !! HOLD ON Variable not initialized yet!
else
   ? Test
end if
Test = VOID -- uninitialize it

You should also be allowed to use it for dumping unnessecary function 
results.

I also suggested this about a year or so ago.

Chris

petelomax at blueyonder.co.uk wrote:
> On Wed, 20 Feb 2002 15:41:23 +1100, Derek Parnell
> <ddparnell at bigpond.com> wrote:
> 
> >The other thing you might want to add is the ability to detect at run 
> >time, whether or not a
> >variable has been initialized.
> 
> OTOH..
> Suppose I am building result_set but then something semi-catastrophic
> happens which invalidates everything about result_set, maybe we should
> not even have been building result_set, we suddenly realise it is a
> condition_set or something.
> 
> Therefore we should uninitialise(result_set) so that if any other part
> of the program tries to reference it, it should cause a trap (to be
> fair, the interpereter would have to report different errors to avoid
> confusion).
> 
> Just a thought, doubt any milage in it, - might it have useful
> application in a multi-threaded environment?
> 
> Pete
> 
>