(unknown charset) Re: [BLACKBOX] Zlib under BlackBox?

From: (unknown charset) Douglas G. Danforth <"Douglas>
Date: Sun, 5 Oct 2008 12:23:59 -0700

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Oleg,

Try this and see what you get

MODULE PrivLocal;

    IMPORT StdLog;
   
    PROCEDURE Proc*;
        VAR int: INTEGER;
    BEGIN
        StdLog.Int(int); StdLog.Ln;
    END Proc;

END PrivLocal.

I agree with you that for variables declared at the MODULE level
are initialized as you say, but not at the procedural level.

-Doug Danforth

Oleg N. Cher wrote:
> Hello Douglas,
>
> In systems with automatic garbage collection like Oberon
> and BlackBox, prof.Niklaus Wirth and Juerg Gutknecht have
> came to a conclusion initialize all variables. Because,
> how you look itself undefined pointers with random bit settings?
> Where it pointes and how garbage collector will be process its?
> And so there was accepted decision to set all new pointers to NIL.
>
> The situation with numercial variables not so unambiguous, and
> better assign its obviously (additionally so more transparent),
> but I faith that initialization variable in 0 has more advantage
> and value, than in random bit simply.
>
>
>> It is my understanding that within a procedure local variables are
>> not initialized upon entrance to the procedure. Hence
>> c: LONGINT;
>> is undefined (random bit settings).
>>
>
>
>> Is this correct or am I mistaken?
>>
> --
> Oleg N. Cher.
>
>
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>
>

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Received on Sun Oct 05 2008 - 21:23:59 UTC