Re: generic * and 0

[Ludovic Courtès]

Hi,

"Mikael Djurfeldt" <address@hidden> writes:

> 2006/12/5, SZAVAI Gyula <address@hidden>:
>> Kevin Ryde wrote:
>> > "Mikael Djurfeldt" <address@hidden> writes:
>> >
>> >> (Not entirely sure that the common zero is a good idea, but I tend
>> >> to think so.)
>> >>
>> >
>> > I suppose it's a question of whether "*" should do that, or leave it
>> > up to the application.
>> >
>>
>> I think there are 3 solution:
>> 1, make * really generic (non-associative, no 0, no 1)
>
> In Guile, this might be tricky to do without large damage to performance.

It would be soooo nice if some day we could have a framework to
specialize invocations, especially for arithmetic operators (e.g., like
what CMUCL and others have)...  :-)

Thanks,
Ludovic.