Binomial.h

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// This may look like C code, but it is really -*- C++ -*-
/* 
Copyright (C) 1988 Free Software Foundation
    written by Dirk Grunwald (grunwald@cs.uiuc.edu)
 
This file is part of the GNU C++ Library.  This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.  This library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#pragma once
 
#include "Random.h"
 
class Binomial: public Random {
protected:
    int pN;
    double pU;
public:
    Binomial(int n, double u, RNG *gen);
 
    int n();
    int n(int xn);
 
    double u();
    double u(int xu);
 
    virtual double operator()();
 
};
 
 
inline Binomial::Binomial(int n, double u, RNG *gen)
: Random(gen){
  pN = n; pU = u;
}
 
inline int Binomial::n() { return pN; }
inline int Binomial::n(int xn) { int tmp = pN; pN = xn; return tmp; }
 
inline double Binomial::u() { return pU; }
inline double Binomial::u(int xu) { double tmp = pU; pU = xu; return tmp; }