PndPiPiGenerator.h File Reference

#include <stdlib.h>
#include <iostream>
#include <fstream>
#include <sstream>
#include <cmath>
#include <algorithm>
#include <time.h>
#include "ranlxs.h"
#include "ranlxd.h"
#include "mzparameters.h"
#include "mzfunctions.h"
#include "mzfunctions_pp_to_pipi_vandewi.h"
#include "FairGenerator.h"

Go to the source code of this file.

Classes
class	PndPiPiGenerator

Functions
void	ranlxs (float r[], int n)
void	ranlxd (double r[], int n)
void	rlxs_init (int level, int seed)
void	rlxd_init (int level, int seed)

Function Documentation

void ranlxd	(	double	r[],
		int	n
	)

Definition at line 571 of file ranlxd.cxx.

{
   int k;

   if (init==0)
      rlxd_init(1,1);

   for (k=0;k<n;k++) 
   {
      is=next[is];
      if (is==is_old)
         update();
      r[k]=one_bit*((double)(x.num[is+4])+one_bit*(double)(x.num[is]));      
   }
}

void ranlxs	(	float	r[],
		int	n
	)

Author

Manuel Zambrana zambr.nosp@m.ana@.nosp@m.kph.u.nosp@m.ni-m.nosp@m.ainz..nosp@m.de and Dmitry Khaneftd khane.nosp@m.ftd@.nosp@m.kph.u.nosp@m.ni-m.nosp@m.ainz..nosp@m.de

Mainz, May 2011

Definition at line 566 of file ranlxs.cxx.

{
   int k;

   if (init==0)
      rlxs_init(0,1);

   for (k=0;k<n;k++) 
   {
      is=next[is];
      if (is==is_old)
         update();
      r[k]=one_bit*(float)(x.num[is]);      
   }
}

void rlxd_init	(	int	level,
		int	seed
	)

Definition at line 501 of file ranlxd.cxx.

{
   int i,k,l;
   int ibit,jbit,xbit[31];
   int ix,iy;

   if ((INT_MAX<2147483647)||(FLT_RADIX!=2)||(FLT_MANT_DIG<24)||
       (DBL_MANT_DIG<48))
      error(0);

   define_constants();
   
   if (level==1)
      pr=202;
   else if (level==2)
      pr=397;
   else
      error(1);
   
   i=seed;

   for (k=0;k<31;k++) 
   {
      xbit[k]=i%2;
      i/=2;
   }

   if ((seed<=0)||(i!=0))
      error(2);

   ibit=0;
   jbit=18;

   for (i=0;i<4;i++)
   {
      for (k=0;k<24;k++)
      {
         ix=0;

         for (l=0;l<24;l++) 
         {
            iy=xbit[ibit];
            ix=2*ix+iy;
         
            xbit[ibit]=(xbit[ibit]+xbit[jbit])%2;
            ibit=(ibit+1)%31;
            jbit=(jbit+1)%31;
         }

         if ((k%4)!=i)
            ix=16777215-ix;

         x.num[4*k+i]=ix;
      }
   }

   carry.c1=0;
   carry.c2=0;
   carry.c3=0;
   carry.c4=0;

   ir=0;
   jr=7;
   is=91;
   is_old=0;
   prm=pr%12;
   init=1;
}

void rlxs_init	(	int	level,
		int	seed
	)

Definition at line 495 of file ranlxs.cxx.

{
   int i,k,l;
   int ibit,jbit,xbit[31];
   int ix,iy;

   if ((INT_MAX<2147483647)||(FLT_RADIX!=2)||(FLT_MANT_DIG<24))
      error(0);

   define_constants();
   
   if (level==0)
      pr=109;
   else if (level==1)
      pr=202;
   else if (level==2)
      pr=397;
   else
      error(1);
   
   i=seed;

   for (k=0;k<31;k++) 
   {
      xbit[k]=i%2;
      i/=2;
   }

   if ((seed<=0)||(i!=0))
      error(2);

   ibit=0;
   jbit=18;

   for (i=0;i<4;i++)
   {
      for (k=0;k<24;k++)
      {
         ix=0;

         for (l=0;l<24;l++) 
         {
            iy=xbit[ibit];
            ix=2*ix+iy;
         
            xbit[ibit]=(xbit[ibit]+xbit[jbit])%2;
            ibit=(ibit+1)%31;
            jbit=(jbit+1)%31;
         }

         if ((k%4)==i)
            ix=16777215-ix;

         x.num[4*k+i]=ix;
      }
   }

   carry.c1=0;
   carry.c2=0;
   carry.c3=0;
   carry.c4=0;

   ir=0;
   jr=7;
   is=95;
   is_old=0;
   prm=pr%12;
   init=1;
}