Re: Pushing the `gnus-range-*' functions down into the C layer

[Lars Magne Ingebrigtsen]

"Stephen J. Turnbull" <address@hidden> writes:

> No, for all types.  First you have to check whether something is a
> bignum, then if not you do a bit-pattern comparison.  Worst case this
> could double the cost of doing EQ(x,y) in C, and in Lisp `eq' will
> cost a perceptible amount more.

Right.  Is EQ in C just implemented as a memory check, and absolutely
nothing else?  It doesn't touch the data at all in any way?

*etag around a bit*

#define EQ(x, y) (XHASH (x) == XHASH (y))

which is

/* Return a perfect hash of the Lisp_Object representation.  */
#define XHASH(a) (a)

So, yeah, stupid idea.  Never mind.

-- 
(domestic pets only, the antidote for overdose, milk.)
  address@hidden * Lars Magne Ingebrigtsen