/**
 * Declaration of Random class.
 * 
 * @file
 * @author Mauro E S Munoz
 * @date   1997-06-18
 * $Id$
 * 
 * LICENSE INFORMATION 
 * 
 * Copyright(c) 2003 by CRIA -
 * Centro de Referencia em Informacao Ambiental
 *
 * http://www.cria.org.br
 * 
 * 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 2
 * 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:
 * 
 * http://www.gnu.org/copyleft/gpl.html
 */



#ifndef _RANDOMHH_
#define _RANDOMHH_



/********************************************************/
/************************ Random ************************/

/** 
 * Class to generate random numbers
 *
 */
class Random
{
public:
  Random();

  /** Return real numbers between [min, max).*/
  double Get( double min, double max );
  /** Return real numbers between [0, max).*/
  double Get( double max );
  /** Return real numbers between [0, 1).*/
  double Get();

  double operator()( double min, double max );
  double operator()( double max );
  double operator()();


  /** Return integer numbers between [min, max).*/
  int Get( int min, int max );
  /** Return integer numbers between [0, max).*/
  int Get( int max );

  int operator()( int min, int max );
  int operator()( int max );

  /** Return numbers "long int's" between [min, max).*/
  long Get( long min, long max );
  /** Return numbers "long int's" between [0, max).*/
  long Get( long max );

  long operator()( long min, long max );
  long operator()( long max );

  /** Generate a random number, r, between [-range, range], so that
   *  r = -range + k * dim_interv, where k = 0,..,N.
   */
  double Discrete( float range, float dim_interv );


private:

  static int not_initialized;
};


#endif