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Re: Unhealthy commit e3340714c8 Style: clarify "do nothing" macro with {


From: Graham Percival
Subject: Re: Unhealthy commit e3340714c8 Style: clarify "do nothing" macro with {};
Date: Sat, 9 Oct 2010 20:09:23 +0100

On Fri, Oct 8, 2010 at 6:35 AM, David Kastrup <address@hidden> wrote:
> Graham Percival <address@hidden> writes:
>> in that the macro might look like a single statement, but it gets
>> expanded into two.  (is it worth enclosing the non-else definition
>> with a { } to avoid this?)
>
> "{ ... }" is not sufficient since that already is a complete statement
> without adding a semicolon, unlike a function call.
>
> The wrapper needs to be "do { ... } while (0)".  It is an idiom that
> compilers optimize away.

Ok, how's this patch?

Cheers,
- Graham

Attachment: 0001-Make-ASSERT_LIVE_IS_ALLOWED-behave-as-a-function.patch
Description: Text Data


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