Re: [eclipse-clp-users] bb_min and C

From: Kish Shen <kisshen_at_...5...>
Date: Fri, 25 Nov 2011 19:12:26 +0000
Sorry, I forgot to outline a more concrete suggestion of how you might 
avoid programming in C:

The idea is to keep the search goal in ECLiPSe, so what you could do is 
write a do_search goal in ECLiPSe that is designed to be called from C:

do_search(<My options>, <return data>) :-
     <process options>,
     search(.....),
     <process return data>.

and keep My options and return data as simple data structures, and you 
write process_options to process the incoming data to produce what you 
need for the call to search, and you process the results afterwards to 
return to C.

Cheers,

Kish

On 24/11/2011 17:36, Bogdan Tanasa wrote:
> Hi,
>
>
>
> I am trying to call bb_min from C.
>
> I am doing something like this:
>
>
>
> search = ec_term(ec_did("search", 6),
>
>                              varList,
>
>                              ec_long(0),
>
>                              ec_atom(ec_did("most_constrained", 0)),
>
>                              ec_atom(ec_did("indomain", 0)),
>
>                              ec_atom(ec_did("complete", 0)),
>
>                              ec_nil()
>
>                              );
>
>
>
>                       bb_min = ec_term(ec_did("bb_min", 3),
>
>                              search,
>
>                              objFunc,
>
>                              ec_atom(ec_did("bb_options{strategy:continue}",
> 0)));
>
>                       ec_post_goal(ec_term(ec_did("writeln", 1), bb_min));
>
>                       ec_post_goal(bb_min);
>
>
>
> I get the following error from CLP:
>
>
>
> type error in
>
> bb_min(
>
> search([_49506{[0, 1]}, _49524{[0, 1]}, _49542{[0, 1]}, _49560{[0, 1]}], 0,
> most_constrained, indomain, complete, []), 1.0 * _49506 + 1.0 *  _49524 +
> 1.0 * _49542 + 1.0 * _49560,
>
> 'bb_options{strategy:continue}') in module eclipse
>
>
>
> The problem is passing the bb_options arguments.
>
> Can you please tell me how to fix it?
>
>
>
> Bogdan.
>
>
>
>
>
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Received on Fri Nov 25 2011 - 19:12:33 CET

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