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Re: [PATCH] ignore-value() tweaks


From: Jim Meyering
Subject: Re: [PATCH] ignore-value() tweaks
Date: Thu, 27 Aug 2009 08:54:08 +0200

Pádraig Brady wrote:

> Jim Meyering wrote:
>> Hmm... I guess you could be thinking about
>> warnings from non-gcc compilers.  Yes, that's another way in which
>> (void)i is better.
>
> Right.
>
> BTW, I'm annoyed that one can't always do: (void) function();
> but I presume gcc must have a _very_ good reason for that.

It's listed as a gcc bug:

  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35579

However, I appreciate the fact that this option ignores (void) casts.
There has been so much abuse of (void) used to ignore
WUR-marked function return values that this warning tends
to uncover many real bugs.

The true exceptions are rare enough that I don't
mind adding explicit ignore_value uses.

> Looks good, thanks for cleaning it up.

Pushed.




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