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Date: Wed, 24 Dec 2014 11:13:30 -0700
Message-ID: <CAFMT4NoafZCLxsdaaUsBYp0t7xAWxdsjkFKUhXV_5-g34-TsRA@mail.gmail.com>
To: Andrea Faulds <ajf@ajf.me>
Cc: Pierre Joye <pierre.php@gmail.com>, =?UTF-8?Q?Johannes_Schl=C3=BCter?= <johannes@schlueters.de>, 
	PHP internals <internals@lists.php.net>, Laruence <laruence@php.net>
Content-Type: text/plain; charset=UTF-8
Subject: Re: [PHP-DEV] About SUCCESS/FAILURE
From: levim@php.net (Levi Morrison)

On Wed, Dec 24, 2014 at 10:34 AM, Andrea Faulds <ajf@ajf.me> wrote:
>
>> On 24 Dec 2014, at 17:22, Levi Morrison <levim@php.net> wrote:
>>
>> Hmm. This thread doesn't seem to mention it, but why must failure be
>> negative? I understand the non-zero part but not negative. Aside from
>> the fact we probably have code relying on it to be negative at this
>> point is there some other reason?
>
> Hey Levi,
>
> I believe it's a convention among C APIs: 0 for success, negative for some error

I'm asking for specific things. The reason is that some API's do a
non-zero error code; the fact that they are negative is a detail that
we should not need to care about.

Thanks.