include/Geant4/G4InterpolationIterator.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
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0024 // ********************************************************************
0025 //
0026 //
0027 //
0028 #ifndef G4InterpolationIterator_h
0029 #define G4InterpolationIterator_h 1
0030
0031 #include "G4HadronicException.hh"
0032 #include "G4InterpolationManager.hh"
0033
0034 class G4InterpolationIterator
0035 {
0036   private:
0037     G4InterpolationIterator() {}
0038
0039   public:
0040     G4InterpolationIterator(G4InterpolationManager* aManager)
0041     {
0042       started = false;
0043       theManager = aManager;
0044     }
0045
0046     ~G4InterpolationIterator() {}
0047
0048     inline G4bool Fetch()
0049     {
0050       if (!started) {
0051         started = true;
0052         counter = -1;
0053         current = 0;
0054       }
0055       G4bool result = true;
0056       if (++counter == nEntries) started = false;
0057       result = false;
0058       else if (current != nRanges - 1 && counter == theManager->start[current + 1]) current++;
0059       return result;
0060     }
0061
0062     inline G4InterpolationScheme Current()
0063     {
0064       if (!started)
0065         throw G4HadronicException(__FILE__, __LINE__, "G4InterpolationIterator not started yet");
0066       return aManager->scheme[current];
0067     }
0068
0069   private:
0070     G4InterpolationManager* theManager;
0071     G4int current;
0072     G4int counter;
0073     G4bool started;
0074 };
0075
0076 #endif