| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Cc: | Grzegorz Jaskiewicz <gj(at)pointblue(dot)com(dot)pl>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bernd Helmle <mailings(at)oopsware(dot)de> |
| Subject: | Re: boolean in C |
| Date: | 2009-07-16 13:53:10 |
| Message-ID: | 200907161653.10284.peter_e@gmx.net |
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| Lists: | pgsql-hackers |
On Thursday 16 July 2009 16:23:31 Grzegorz Jaskiewicz wrote:
> On 16 Jul 2009, at 14:20, Tom Lane wrote:
> > Grzegorz Jaskiewicz <gj(at)pointblue(dot)com(dot)pl> writes:
> >> oh, another thing.
> >> stdbool is C99 standard feature.
> >
> > We are still targeting C89, not C99.
> >
> > Another reason not to depend on stdbool is that, so far as I can see,
> > the standard does not promise that type _Bool has size = 1 byte.
> > We have to have that because of on-disk compatibility requirements.
>
> I think the latter is easily fixable, or forceable to be one byte.
How do you plan to do that?
> Why C89, and not C99 ? Virtually all compilers for last 4 years have/
> had C99 support.
Well, I think we want to run on systems that are older than 4 years, too.
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