#region License Information /* HeuristicLab * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Generic; using System.Text; using HeuristicLab.Core; using HeuristicLab.Data; namespace HeuristicLab.Constraints { /// /// Constraint that allows only integer values. /// public class IsIntegerConstraint : ConstraintBase{ /// public override string Description { get { return "Allows only integer values."; } } /// /// Checks whether the given element fulfills the current constraint. /// /// The item to check. /// true if the constraint could be fulfilled, false otherwise. public override bool Check(IItem item) { // ConstrainedIntData is always integer => just return true if(item is ConstrainedIntData) return true; // if we have an item of ConstrainedDoubleData then we check if it is integer or not if(item is ConstrainedDoubleData) { ConstrainedDoubleData d = (ConstrainedDoubleData)item; if(d.Data == Math.Truncate(d.Data)) { return true; } else { return false; } } // assume that all other data types are never integer return false; } } }