Re: boolean in C

On 16 Jul 2009, at 14:20, Tom Lane wrote:

> Grzegorz Jaskiewicz <gj@pointblue.com.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.
Why C89, and not C99 ? Virtually all compilers for last 4 years have/ 
had C99 support.