Jip J. Dekker
3e72b0e857
git-subtree-dir: software/gecode_on_record git-subtree-split: 37ed9bda495ea87e63217c19a374b5a93bb0078e
31 lines
1.1 KiB
MiniZinc
31 lines
1.1 KiB
MiniZinc
% This file contains redefinitions of standard builtins that can be overridden
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% by solvers.
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predicate bool_clause_reif(array[int] of var bool: as,
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array[int] of var bool: bs,
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var bool: b);
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predicate array_int_maximum(var int: m, array[int] of var int: x);
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predicate array_float_maximum(var float: m, array[int] of var float: x) =
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let { int: l = min(index_set(x)),
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int: u = max(index_set(x)),
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float: ly = lb_array(x),
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float: uy = ub_array(x),
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array[l..u] of var ly..uy: y } in
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y[l] = x[l] /\
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m = y[u] /\
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forall (i in l+1 .. u) ( y[i] == max(x[i],y[i-1]) );
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predicate array_int_minimum(var int: m, array[int] of var int: x);
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predicate array_float_minimum(var float: m, array[int] of var float: x) =
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let { int: l = min(index_set(x)),
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int: u = max(index_set(x)),
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float: ly = lb_array(x),
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float: uy = ub_array(x),
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array[l..u] of var ly..uy: y } in
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y[l] = x[l] /\
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m = y[u] /\
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forall (i in l+1 .. u) ( y[i] == min(x[i],y[i-1]) );
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