this repo has no description
dekker.one
1%
2% Main authors:
3% Guido Tack <tack@gecode.org>
4%
5% Copyright:
6% Guido Tack, 2007
7%
8% This file is part of Gecode, the generic constraint
9% development environment:
10% http://www.gecode.org
11%
12% Permission is hereby granted, free of charge, to any person obtaining
13% a copy of this software and associated documentation files (the
14% "Software"), to deal in the Software without restriction, including
15% without limitation the rights to use, copy, modify, merge, publish,
16% distribute, sublicense, and/or sell copies of the Software, and to
17% permit persons to whom the Software is furnished to do so, subject to
18% the following conditions:
19%
20% The above copyright notice and this permission notice shall be
21% included in all copies or substantial portions of the Software.
22%
23% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24% EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25% MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26% NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27% LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28% OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29% WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30%
31%
32
33predicate gecode_int_set_channel(array[int] of var int: x, int: xoff,
34 array[int] of var set of int: y, int: yoff);
35
36predicate fzn_int_set_channel(array[int] of var int: x,
37 array[int] of var set of int: y) =
38 if (length(x)=0 \/ length(y)=0 \/ min(index_set(x)) < 0 \/ min(index_set(y)) < 0) then
39 forall(i in index_set(x)) (x[i] in index_set(y)) /\
40 forall(j in index_set(y)) (y[j] subset index_set(x)) /\
41 forall(i in index_set(x), j in index_set(y))
42 (x[i]=j <-> i in y[j])
43 else
44 gecode_int_set_channel(x,min(index_set(x)),y,min(index_set(y)))
45 endif;