source: branches/2213_irace/HeuristicLab.ExtLibs/HeuristicLab.SimSharp/3.0.9/SimSharp-3.0.9/Random/SystemRandom.cs

#region License Information
/* SimSharp - A .NET port of SimPy, discrete event simulation framework
Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)

This program 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.

This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.*/
#endregion

using System;

namespace SimSharp {
  public class SystemRandom : IRandom {
    private Random random;

    public SystemRandom() {
      random = new Random();
    }

    public SystemRandom(int seed) {
      random = new Random(seed);
    }
    public int Next() {
      return random.Next();
    }

    public int Next(int upperBound) {
      return random.Next(upperBound);
    }

    public int Next(int lowerBound, int upperBound) {
      return random.Next(lowerBound, upperBound);
    }

    public double NextDouble() {
      return random.NextDouble();
    }

    public void Reinitialise(int seed) {
      random = new Random(seed);
    }
  }
}