%
%  Main authors:
%     Guido Tack <tack@gecode.org>
%
%  Copyright:
%     Guido Tack, 2007
%
%  Last modified:
%     $Date: 2012-03-21 16:25:08 +1100 (Wed, 21 Mar 2012) $ by $Author: tack $
%     $Revision: 12605 $
%
%  This file is part of Gecode, the generic constraint
%  development environment:
%     http://www.gecode.org
%
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%

predicate gecode_link_set_to_booleans(var set of int: s, array[int] of var bool: b, int: idx);

predicate link_set_to_booleans(var set of int: s, array[int] of var bool: b) =
    assert(ub(s) subset index_set(b),
        "link_set_to_booleans: the index set of b must be a superset of the possible values of s",
        if min(index_set(b)) < 0 then
          forall(i in index_set(b)) ( b[i] <-> i in s )
        else
          gecode_link_set_to_booleans(s,b,min(index_set(b)))
        endif
    );