content: /**
   * Copyright 2004-2006 DFKI GmbH.
   * All Rights Reserved.  Use is subject to license terms.
   * <p/>
   * This file is part of MARY TTS.
   * <p/>
   * MARY TTS is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation, version 3 of the License.
   * <p/>
   * 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 Lesser General Public License for more details.
   * <p/>
   * You should have received a copy of the GNU Lesser General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  package marytts.util.math;
  
  import java.util.Arrays;
  
  /**
   * This is a wrapper class that can hold two double arrays, one of which is
   * interpreted as containing the real values, the other the imaginary values
   * of the complex numbers.
   *
   * @author Marc Schr&ouml;der
   */
  public class ComplexArray {
      public double[] real;
      public double[] imag;
  
      public ComplexArray(int len) {
          init(len);
      }
  
      public ComplexArray(double[] realVals, double[] imagVals) {
          if (realVals != null && imagVals != null && realVals.length == imagVals.length) {
              init(realVals.length);
              System.arraycopy(realVals, 0, real, 0, realVals.length);
              System.arraycopy(imagVals, 0, imag, 0, imagVals.length);
          }
      }
  
      public ComplexArray(ComplexArray c) {
          this(c.real, c.imag);
      }
  
      public void init(int len) {
          if (len > 0) {
              real = new double[len];
              imag = new double[len];
  
              Arrays.fill(real, 0.0);
              Arrays.fill(imag, 0.0);
          } else {
              real = null;
              imag = null;
          }
      }
  
      public ComplexNumber get(int index) {
          return new ComplexNumber((float) real[index], (float) imag[index]);
      }
  }
  
  