Import Geant4 11.3.0 source tree

2024-12-06 11:11:40 +01:00
parent e58e650b32
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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.          *
+// ********************************************************************
+//
+//
+#ifndef MOLECULAR_UTILITY_FUNCTIONS_HH
+#define MOLECULAR_UTILITY_FUNCTIONS_HH
+
+#include "G4ThreeVector.hh"
+#include "globals.hh"
+
+#include <array>
+#include <string>
+#include <vector>
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
+
+namespace utility
+{
+std::vector<G4String>& Split(const G4String&, char, std::vector<G4String>&);
+
+std::vector<G4String> Split(const G4String&, char);
+
+G4String Get_seperated_element(const G4String&, char, G4int);
+
+std::array<G4String, 4> Get_four_elements(const G4String&, char);
+
+G4bool Path_exists(const G4String&);
+
+G4String Getcwd();
+
+G4double Min(const G4ThreeVector&);
+
+// sign function
+template<typename T>
+[[maybe_unused]] inline constexpr G4int Signum(T, std::false_type);
+
+template<typename T>
+inline constexpr int Signum(T, std::true_type);
+
+template<typename T>
+inline constexpr int Signum(T);
+
+// find last (highest) significant bit
+// linux implementation, copied for portability
+// http://lxr.linux.no/#linux+v2.6.26.5/include/asm-generic/bitops/fls.h
+static inline int Fls(int x)
+{
+  int r = 32;
+
+  if (!x) return 0;
+  if (!(x & 0xffff0000u)) {
+    x <<= 16;
+    r -= 16;
+  }
+  if (!(x & 0xff000000u)) {
+    x <<= 8;
+    r -= 8;
+  }
+  if (!(x & 0xf0000000u)) {
+    x <<= 4;
+    r -= 4;
+  }
+  if (!(x & 0xc0000000u)) {
+    x <<= 2;
+    r -= 2;
+  }
+  if (!(x & 0x80000000u)) {
+    x <<= 1;
+    r -= 1;
+  }
+  return r;
+}
+
+}  // namespace utility
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
+
+#endif  // MOLECULAR_UTILITY_FUNCTIONS_HH