(unknown charset) Re: [BLACKBOX] [Fwd: Re: [BLACKBOX] Variable initialization in BlackBox]

From: (unknown charset) Oleg N. Cher <"Oleg>
Date: Thu, 9 Oct 2008 05:42:14 +0300

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Hello, BB Community,

I agree that to know in what events variable are zeroized,
but in what no, this much useful.

But software construction may be different, there is high efficiency
system programming, students teaching or crossplatform development.

If we talk about first, we will begin with that that assignment to 0
not always is necessary, particularly this possible say about RECORDs
and ARRAYs. Particularly, if at first step array is assigned to 0 tacit,
and afterwards in other importances obviously. This is a double work,
additionally absolutely unnecessary. Because it takes time to initialize
everything twice.

If we talk about second, students can be much surprised, when their
algorithms in one events works, but in other no, and this is caused
difficult to understand particularity to realization of the ambience
of the development. In such events to write evident assignment is necessary.

And finally in third part, I activelly used translation Oberon-programs
to C with Ofront (Dr. Josef Templ! Excellent work!), and I can not rely
that variables and structures are zeroized. So rely upon this not evident
variable assignment this already emergency.

Dear Mr. Iljin, probably, every night regularly reads the CP Language Report (Docu/CP-Lang), what impossible say about me, since I reread RFC 1035

;-)

> All fields or elements of a newly allocated record or array are
> cleared, which implies that all embedded pointers and procedure
> variables are initialized to NIL

--
Oleg N. Cher.
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Received on Thu Oct 09 2008 - 04:42:14 UTC