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Message-ID: <20051123164215.12647.qmail@web25813.mail.ukl.yahoo.com>
Date: Wed, 23 Nov 2005 17:42:15 +0100 (CET)
From: moreau francis <francis_moreau2000@yahoo.fr>
Subject: Re: Use enum to declare errno values
To: Nikita Danilov <nikita@clusterfs.com>
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <17284.38866.189529.510004@gargle.gargle.HOWL>
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--- Nikita Danilov <nikita@clusterfs.com> a ?crit :

> 
> (gdb) p (enum side)$1
> $2 = LEFT
> 
> (This works when debugging information about enum was stored in ELF
> object.)
> 

not really convenient. For example:

int foo(void)
{
        int tmp;

        tmp = bar();
        [...]
        return tmp;
}

How do you know if tmp store an errno value ? You have to look into bar and  so
on...By using "enum errnoval", gdb can directly tell you that a variable stores
an errno value.

Thanks


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