Re: Qs on obarrays

[Stefan Monnier <monnier@iro.umontreal.ca>]

> Also, the obarray length must be supplied to make-vector. Anyone know a
> heuristic for a good vector length to use when you expect a certain number
> of symbols? I notice that the length of standard variable `obarray's value
> is 1511 (prime, presumably). If I expect on the order of N symbols, what is
> a good length to use? Or is there no simple formula? If not, anyone know a
> good length for, say, 100 symbols?

In most cases, you can advantageously use a hashtable instead of an obarray.
Those are automatically resized.


        Stefan