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From: "Vinzent Hoefler" <0439279208b62c95f1880bf0f8776eeb@t-domaingrabbing.de>
Newsgroups: comp.lang.ada
Subject: Re: How do I write directly to a memory address?
Date: Wed, 09 Feb 2011 22:42:05 +0100
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Date: 2011-02-09T22:42:05+01:00
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Hyman Rosen wrote:

> On 2/9/2011 3:19 PM, Vinzent Hoefler wrote:
>> So it probably was as readable as C-code could ever be. Of course, things like
>> putting "(void)" before each function where the return value is not evaluated
>> might not really count as "readable", but it's a good hint for the maintenance
>> programmer that it was ignored on purpose.
>
> Ugh. I would never allow such constructs to pass inspection.
> It isn't idiomatic C, and it's ugly as sin.

AFAICT, it's a common coding standard in the automotive industry. Probably
based on MISRA, rule 86: "If a function returns error information, then
that error information should be tested."

There also was the rule that every "if" needs an "else", even if empty.

> Why might you have such ignored returns?

Because one does not fscking care about whatever bogus result the function
is returning? ;)

> If you write
>
>      (void)strcpy(buf, "hello");
>
> that doesn't tell me you're careful, I'll just hate you.

Don't hate me, hate the coding standard that tells you to do

(void) printf ("Hello, world.");

Or when was it the last time, that you evaluated the return code of printf()?
Or close()?


Vinzent.

-- 
You know, we're sitting on four million pounds of fuel, one nuclear weapon,
and a thing that has 270,000 moving parts built by the lowest bidder.
Makes you feel good, doesn't it?
   --  Rockhound, "Armageddon"