Import Geant4 10.3.0 source tree

2016-12-09 12:35:28 +01:00
parent 4ec577e5c4
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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// $Id$
+
+// Author: Ivana Hrivnacova, 04/07/2012  (ivana@ipno.in2p3.fr)
+
+#ifndef G4MergeMode_h
+#define G4MergeMode_h 1
+
+#include "globals.hh"
+
+#include <functional>
+#include <cmath>
+
+// Enumeration for definition available binning schemes
+
+enum class G4MergeMode {
+  kAddition,        // "Or" if boolean type
+  kMultiplication,  // "And" if boolean type
+  kMaximum,         // "Or" if boolean type
+  kMinimum          // "And" if boolean type
+};  
+
+// Generic merge function
+template <typename T>
+using G4MergeFunction = std::function<T(const T&, const T&)>;
+
+// Utility functions
+namespace  G4Accumulables {
+
+G4MergeMode GetMergeMode(const G4String& mergeModeName);
+
+template <typename T>
+G4MergeFunction<T> GetMergeFunction(G4MergeMode mergeMode)
+{
+  switch ( mergeMode ) {
+    case G4MergeMode::kAddition:
+      // return std::bind([](const T& x, const T& y) { return x + y; });
+      return [](const T& x, const T& y) { return x + y; };
+
+    case G4MergeMode::kMultiplication:
+      return [](const T& x, const T& y) { return x * y; };
+      
+    case G4MergeMode::kMaximum:
+      // return std::bind([](const T& x, const T& y) { return std::max(x,y);});
+      return [](const T& x, const T& y) { return std::max(x,y); };
+
+    case G4MergeMode::kMinimum:
+      // return std::bind([](const T& x, const T& y) { return std::min(x,y);});
+      return [](const T& x, const T& y) { return std::min(x,y); };
+  }
+}
+
+template <G4bool>
+G4MergeFunction<G4bool> GetMergeFunction(G4MergeMode mergeMode)
+{
+  switch ( mergeMode ) {
+    case G4MergeMode::kAddition:
+    case G4MergeMode::kMaximum:
+      // return std::bind([](const T& x, const T& y) { return x + y; });
+      return [](const G4bool& x, const G4bool& y) { return x || y; };
+
+    case G4MergeMode::kMultiplication:
+    case G4MergeMode::kMinimum:
+      return [](const G4bool& x, const G4bool& y) { return x && y; };
+  }
+}
+
+}
+
+#endif