[Haskell-cafe] Java or C to Haskell
Donald Bruce Stewart
dons at cse.unsw.edu.au
Wed Sep 20 04:54:04 EDT 2006
dons:
> crespi.albert:
> >
> > I'm trying to write in Haskell a function that in Java would be something
> > like this:
> >
> > char find_match (char[] l1, char[] l2, char e){
> > //l1 and l2 are not empty
> > int i = 0;
> > while (l2){
> > char aux = l2[i];
> > char[n] laux = l2;
> > while(laux){
> > int j = 0;
> > if(laux[j] = aux) laux[j] = e;
> > j++;
> > }
> > if compare (l1, laux) return aux;
> > else i++;
> > }
> > return '';
> > }
>
> Yikes!
>
> >
> > compare function just compares the two lists and return true if they are
> > equal, or false if they are not.
> > it is really a simple function, but I've been thinking about it a lot of
> > time and I can't get the goal. It works like this:
> >
> > find_match "4*h&a" "4*5&a" 'h' ----> returns '5' (5 matches with the h)
> > find_match "4*n&s" "4dhnn" "k" ----> returns '' (no match at all - lists
> > are different anyway)
>
> That's almost a spec there :)
Ah, I see I misread the spec :) Time for some tea.
-- Don
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