org.chocosolver.parser.flatzinc.ast.constraints.IntMinBuilder Maven / Gradle / Ivy

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/*
 * Copyright (c) 1999-2012, Ecole des Mines de Nantes
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Ecole des Mines de Nantes nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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package org.chocosolver.parser.flatzinc.ast.constraints;

import org.chocosolver.parser.flatzinc.ast.Datas;
import org.chocosolver.parser.flatzinc.ast.expression.EAnnotation;
import org.chocosolver.parser.flatzinc.ast.expression.Expression;
import org.chocosolver.solver.Solver;
import org.chocosolver.solver.constraints.IntConstraintFactory;
import org.chocosolver.solver.variables.IntVar;

import java.util.List;

/**
 * min(a, b) = c
 * 

 *
 * @author Charles Prud'homme
 * @since 26/01/11
 */
public class IntMinBuilder implements IBuilder {

    @Override
    public void build(Solver solver, String name, List exps, List annotations, Datas datas) {
        IntVar a = exps.get(0).intVarValue(solver);
        IntVar b = exps.get(1).intVarValue(solver);
        IntVar c = exps.get(2).intVarValue(solver);
        solver.post(IntConstraintFactory.minimum(c, a, b));
    }
}