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Re: Prolog Mystery
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From: |
Salvador Abreu |
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Subject: |
Re: Prolog Mystery |
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Date: |
Wed, 26 Dec 2001 23:39:14 +0000 |
> I'm trying to do a predicate that given a list collects all
> elements into another list that are not integer.
> I've done the following:
>
> np_collect([],X,X).
> np_collect([Y|L], T, P) :-
> \+ integer(Y),
> np_add(Y, T, R),
> np_collect(L, R, P).
>
>
> For some strange reason it is not working...
you'd need a third recursive clause, starting with integer(Y)...
btw, is this for some course assignment?
> Hope you had a great Christmas and a Happy New Year...
yes and not yet :-)
../s
- Prolog Mystery, Paulo J. Matos aka PDestroy, 2001/12/26
- Re: Prolog Mystery,
Salvador Abreu <=