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

From: (unknown charset) Douglas G. Danforth <"Douglas>
Date: Sun, 5 Oct 2008 09:37:42 -0700

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Oleg and the BB community,

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?

-Doug Danforth

Oleg N. Cher wrote:
> Hello Douglas,
>
> Yes, you are right.
> Reason of my message is not to show incorrect source,
> but show that BB traps, and the most correct reaction
> was show mistake.
>
>
>> SYSTEM.LSH(c, -1)
>>
>
>
>> is invalid (it is also meaningless since c has not been initialized).
>> Note that one can use BITS to obtain a set
>>
>
> BB initialises all variables by default... numercial to 0, pointers to NIL
> And why SYSTEM.LSH(c, -1) is invalid?
>
>
>> set := BITS(poly)
>>
> Ok, I'll use it :)
> Conversion of types over SYSTEM.VAL is not my idea,
> so it written in Stefan Walthert's Zlib sources.
>
> --
> Oleg N. Cher.
>
>
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>
>
>

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Received on Sun Oct 05 2008 - 18:37:42 UTC