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