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From: Kaz Kylheku <643-408-1753@kylheku.com>
Newsgroups: comp.lang.c
Subject: Re: Memory protection between compilation units?
Date: Mon, 16 Jun 2025 01:01:35 -0000 (UTC)
Organization: A noiseless patient Spider
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Message-ID: <20250615175532.971@kylheku.com>
References: <20250611153239.6bc43323@mateusz>
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On 2025-06-15, Waldek Hebisch <antispam@fricas.org> wrote:
> Mateusz Viste <mateusz@not.gonna.tell> wrote:
>>
>> That said, detecting out-of-bounds array access is no panacea. Memory
>> corruption can arise from various sources, such as dangling pointers or
>> poorly managed pointer arithmetic.
>
> AFAICS there is no reason for explicit pointer arithmetic in well
> written C programs.
LOL, you heard it here.
> Implicit pointer arithmetic (coming from array
> indexing) is done by compiler so should be no problem. Like in
Array indexing *is* pointer arithmetic.
Are you not aware of this equivalence?
(E1)[(E2)] <---> *((E1) + (E2))
In fact, let's draw the commutative diagram
(E1)[(E2)] <---> *((E1) + (E2))
^ ^
| |
| |
v v
(E2)[(E1)] <---> *((E2) + (E1))
You're not saying anything here other than that you like the p[i]
/notation/ better than *(p + i), and &p[i] better than p + i.
Great, thanks for sharing!
You're not doing yourself any favor by confusing
"not styled in my taste" with "not well written".