1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4Ranecu.cc,v 1.3 2008/06/25 17:20:04 kaitanie Exp $ |
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27 | // Translation of INCL4.2/ABLA V3 |
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28 | // Pekka Kaitaniemi, HIP (translation) |
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29 | // Christelle Schmidt, IPNL (fission code) |
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30 | // Alain Boudard, CEA (contact person INCL/ABLA) |
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31 | // Aatos Heikkinen, HIP (project coordination) |
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32 | |
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33 | #include "G4Ranecu.hh" |
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34 | |
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35 | G4Ranecu::G4Ranecu() |
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36 | { |
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37 | iseed1 = 666; |
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38 | iseed2 = 777; |
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39 | } |
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40 | |
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41 | G4Ranecu::~G4Ranecu() |
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42 | { |
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43 | |
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44 | } |
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45 | |
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46 | G4double G4Ranecu::getRandom() |
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47 | { |
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48 | // This is an adapted version of subroutine ranecu: |
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49 | // A. Padal, J. Sempau Computer Physics Cummunications 175 (2006) 440-450 |
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50 | |
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51 | // implicit double precision (a-h,o-z), integer*4 (i-n) |
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52 | // common/rseed/iseed1,iseed2 |
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53 | G4double uscale=1.0/2.147483563e9; |
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54 | |
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55 | G4long i1=iseed1/53668; |
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56 | iseed1=40014*(iseed1-i1*53668)-i1*12211; |
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57 | |
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58 | if(iseed1 < 0) iseed1 = iseed1 + 2147483563; |
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59 | |
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60 | G4long i2=iseed2/52774; |
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61 | iseed2=40692*(iseed2-i2*52774)-i2*3791; |
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62 | if(iseed2 < 0) iseed2=iseed2+2147483399; |
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63 | |
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64 | G4long iz=iseed1-iseed2; |
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65 | if(iz < 1) iz=iz+2147483562; |
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66 | |
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67 | return iz*uscale; |
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68 | } |
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