/usr/share/gecode/mznlib/sum_pred.mzn is in flatzinc 4.2.1-2.
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% Main authors:
% Guido Tack <tack@gecode.org>
%
% Copyright:
% Guido Tack, 2007
%
% Last modified:
% $Date: 2012-03-19 01:56:37 +0100 (Mon, 19 Mar 2012) $ by $Author: tack $
% $Revision: 12583 $
%
% This file is part of Gecode, the generic constraint
% development environment:
% http://www.gecode.org
%
% Permission is hereby granted, free of charge, to any person obtaining
% a copy of this software and associated documentation files (the
% "Software"), to deal in the Software without restriction, including
% without limitation the rights to use, copy, modify, merge, publish,
% distribute, sublicense, and/or sell copies of the Software, and to
% permit persons to whom the Software is furnished to do so, subject to
% the following conditions:
%
% The above copyright notice and this permission notice shall be
% included in all copies or substantial portions of the Software.
%
% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
% EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
% MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
% NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
% LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
% OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
% WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
%
%
predicate gecode_set_weights(array[int] of int: csi,array[int] of int: cs,
var set of int: x, var int: y);
predicate sum_pred(var int: i, array[int] of set of int: sets,
array[int] of int: cs, var int: s) =
gecode_set_weights([j|j in index_set(cs)],cs,sets[i],s);
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