Re: [Emacs-diffs] master f18af6c: Audit use of lsh and fix glitches

[Stefan Monnier]

> As for `eq' and `eql', what I thought Stefan proposed was to keep a
> hash value in struct Lisp_Bignum, which is calculated lazily the first
> time the bignum is compared to another bignum with `eq', at which
> point we might as well point out to the user that portable code would
> require `eql'. That sounds to me like it would be much cheaper than a
> hash table, but if there are objections to it we can still implement
> it without guaranteeing it for the future in the documentation.

No, that's definitely not what I was proposing.  I was proposing an
actual hash-table.  What you're suggesting is problematic in that it
assumes `eq` will do something special for bignums, which implies `eq`
is not just `==` in C.


        Stefan