>-----Original Message-----
>From: Przemyslaw Czerpak [mailto:[email protected]]
>Sent: Monday, May 25, 2009 9:40 PM
>To: Harbour Project Main Developer List.
>Subject: Re: [Harbour] exit with switch and for each
>
>On Sat, 23 May 2009, Vailton Renato wrote:
[...]
>The same is for many other constructions, f.e.:
>
> l := 10
> while f1( l )
> l *= 10
> for i := 1 to 100
> if f2(i)
> exit // but I want to exit from WHILE not only from FOR
> endif
> next
> enddo
>
>You can write the same also about nest statments like:
>
> for i := 1 to 10
> for j := 1 to 20
> if f( i, j )
> exit // but I want to exit from external FOR i :=
>... loop too
> endif
> next
> next
>
>In short words you are requesting about GOTO instruction which
>introduces to compiler serious limitations or at least
>additional code necessary to make it working correctly with
>statements which needs to allocate and then free some
>resources. It's rather bad idea.
This is not comparable. Exit was escape from loop without control
expression, loop with control.
Now, when mixed syntax switch and any while/for we still heve LOOP
inside switch, but EXIT no longer.
EXIT in the sense : escape from a loop.
In this case word Exit important changes.
My example for workaround :
Local lExit := .f., i := 1
While !lExit
... // designate i
Switch i
Case 2
... // designate lExit
Loop
Case 3
...
Exit
Case 4
....
End
End
Hm, maby this is ok.. In C is to only break and continue.
Regards,
Marek Horodyski
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