Common Lisp solved this problem 20 years ago Alan Watson (25 Oct 2005 11:02 UTC)
Re: Common Lisp solved this problem 20 years ago Marcin 'Qrczak' Kowalczyk (25 Oct 2005 19:11 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (25 Oct 2005 19:22 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (25 Oct 2005 20:11 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (25 Oct 2005 20:12 UTC)
Re: Common Lisp solved this problem 20 years ago Marcin 'Qrczak' Kowalczyk (25 Oct 2005 22:08 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (25 Oct 2005 20:28 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (25 Oct 2005 20:22 UTC)
Re: Common Lisp solved this problem 20 years ago Aubrey Jaffer (25 Oct 2005 21:54 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (25 Oct 2005 22:23 UTC)
Re: Common Lisp solved this problem 20 years ago Aubrey Jaffer (26 Oct 2005 02:25 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (26 Oct 2005 03:52 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (26 Oct 2005 05:46 UTC)
Re: Common Lisp solved this problem 20 years ago Taylor Campbell (26 Oct 2005 20:05 UTC)
Re: Common Lisp solved this problem 20 years ago John.Cowan (26 Oct 2005 20:12 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (26 Oct 2005 20:38 UTC)
Re: Common Lisp solved this problem 20 years ago Thomas Bushnell BSG (26 Oct 2005 21:53 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (26 Oct 2005 22:13 UTC)
Re: Common Lisp solved this problem 20 years ago Thomas Bushnell BSG (26 Oct 2005 22:20 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (26 Oct 2005 23:31 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (27 Oct 2005 00:20 UTC)
Re: Common Lisp solved this problem 20 years ago Thomas Bushnell BSG (27 Oct 2005 03:20 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (27 Oct 2005 05:52 UTC)
Re: Common Lisp solved this problem 20 years ago Taylor Campbell (26 Oct 2005 23:51 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (27 Oct 2005 00:14 UTC)
Re: Common Lisp solved this problem 20 years ago Thomas Bushnell BSG (27 Oct 2005 03:21 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (27 Oct 2005 05:41 UTC)
Re: Common Lisp solved this problem 20 years ago Thomas Bushnell BSG (26 Oct 2005 21:52 UTC)
Re: Common Lisp solved this problem 20 years ago John.Cowan (26 Oct 2005 22:14 UTC)
Re: Common Lisp solved this problem 20 years ago Thomas Bushnell BSG (26 Oct 2005 22:17 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (26 Oct 2005 06:15 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (26 Oct 2005 06:51 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (26 Oct 2005 07:15 UTC)
Re: Common Lisp solved this problem 20 years ago Per Bothner (26 Oct 2005 07:38 UTC)
Re: Common Lisp solved this problem 20 years ago Alan Watson (26 Oct 2005 07:49 UTC)
Re: Common Lisp solved this problem 20 years ago Marcin 'Qrczak' Kowalczyk (26 Oct 2005 09:09 UTC)

Re: Common Lisp solved this problem 20 years ago Alan Watson 25 Oct 2005 20:27 UTC

Marcin 'Qrczak' Kowalczyk wrote:
> Declaring types of identifiers is not enough, because it can't express
> the wish to ignore any fixnum overflow and assume that the result will
> fit in a fixnum.

The C world has recently woken up to the problem of integer overflow. I
used to think, "hah, if only they had used Scheme". Now we are proposing
to include this problem in the *core* of Scheme.

Look, the core of Scheme should favor correctness over efficiency. The
core of scheme should define addition on two integers to yield the sum,
not the sum modulus some unknown constant.

Yes, fixnum modular arithmetic can be useful in some circumstances. But,
please, shunt it off into the library.

Regards,

Alan
--
Dr Alan Watson
Centro de Radioastronomía y Astrofísica
Universidad Astronómico Nacional de México