OpenEuphoria

Re: C Programers

• Posted by don cole <doncole at ?acbell.ne?> Jul 23, 2007
• 520 views

CChris wrote:
> 
> don cole wrote:
> > 
> > Hello C Programers,
> > 
> >    Can any of you translate this to Euphoria?
> > 
> > int sum_list(struct list_node *l)
> > {
> >    if(l == NULL)
> >       return 0;
> >     return l.data + sum_list(l.next);
> > }
> > 
> > Don Cole
> 
> What is the definition of list_node? Obviously it's a structure that has
> fields
> named data and next, but that's a little short.
> 
> My guess is that you have to translate a linked list of nodes into a sequence
> of nodes. Then you'd only need to do this:
> }}}
<eucode>
> function sum_list_(integer sum,integer index,sequence nodes)
> if index<=length(nodes) then
>     return sum_list_(sum+nodes[index][DATA],index+1,nodes)
> else
>     return sum
> end if
> end function
> 
> function sum_list(sequence nodes)
> return sum_list_(0,1,nodes)
> end function
> </eucode>
{{{

> 
> Not the most efficient, but the closest to a verbatim translation.
> 
> CChris

Hello CChris,     
   
Thank you for your response. My understanding is, and I might be wrong, that
   a list_node signifies the end of a list item or a line of text. In Euphoria a
   believe that this is normally character 13. A null node signifies the end of the
   list normally -1 in Euphoria. I got this from here.

http://www-128.ibm.com/developerworks/linux/library/l-recurs.html

   Maybe if you read this you would understand it better than I.

   Also to Bernie Ryan thank you for your response

Don Cole