include/Photos/PhotosDebugRandom.h

0001 #ifndef _PhotosDebugRandom_included_
0002 #define _PhotosDebugRandom_included_
0003 /**
0004  * @class PhotosDebugRandom
0005  *
0006  * @brief Random generator for debugging purposes
0007  *
0008  * Random generator with ability to save and restore state, set custom
0009  * state and print current state. This class extends PhotosRandom class.
0010  * PhotosRandom is a static class, therefore this extension works
0011  * automatically for FORTRAN code without any changes.
0012  * Our random generator is the C++ follow-up of FORTRAN generator by
0013  * F. James DD-Report, November 1988. and  G. Marsaglia and A. Zaman,
0014  * FSU-SCR-87-50,
0015  *
0016  * @author Tomasz Przedzinski
0017  * @date 28th June 2012
0018  */
0019
0020 #include "PhotosRandom.h"
0021
0022 namespace Photospp
0023 {
0024
0025 class PhotosDebugRandom : PhotosRandom
0026 {
0027 public:
0028   /* Save current state */
0029   static void saveState();
0030
0031   /* Restore state from save */
0032   static void restoreState();
0033
0034   /* Set current state provided by user */
0035   static void setState(int i, int j, double c, double list[97]);
0036
0037   /* Save state provided by user */
0038   static void setSaveState(int i, int j, double c, double list[97]);
0039
0040   /* Print state in a form that can be easily copied into the code */
0041   static void print();
0042
0043 private:
0044   static int i97_saved;
0045   static int j97_saved;
0046   static double uran_saved[97];
0047   static double cran_saved;
0048 };
0049
0050 } // namespace Photospp
0051 #endif