Re: Addressable bits buffer, how?

["Ruud H.G. van Tol" <rvtol@isolution.nl>]

On 2022-01-22 14:08, Bill Allombert wrote:
> On Sat, Jan 22, 2022 at 01:37:53PM +0100, Ruud H.G. van Tol wrote:
> > What are the ways to do raw bit buffer efficiently?
>
> in GP, It is not quite possible, since there is no 'in place' operation,
> but you can try to use Vecsmall() and vectorsmall()
>
> In C you can use the function class F2v_ (F2v_coeff, F2v_set, F2_clear,
> etc) for bits, and t_VECSMALL for word-size.

I was thinking about using a t_STR, but strchr(0) errors.

I am assuming there is a good reason for that,
so now I think a t_BYTE would be welcome,
maybe with a related t_VECTINY (0..255, maybe also -128..127?).
Would that be worth it to dig into?

This "minimal overhead" already looks good:
? 
sizebyte("1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890")
%919 = 112

-- Greetings, Ruud