Gabriele Cosmo
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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#ifndef G4VDNAMesh_hh
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#define G4VDNAMesh_hh 1
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#include "globals.hh"
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class G4VDNAMesh
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{
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public:
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G4VDNAMesh() = default;
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virtual ~G4VDNAMesh() = default;
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struct Index
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{
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Index() = default;
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Index(G4int _x, G4int _y, G4int _z)
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: x(_x)
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, y(_y)
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, z(_z)
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{}
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~Index() = default;
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G4bool operator==(const Index& rhs) const
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{
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return x == rhs.x && y == rhs.y && z == rhs.z;
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}
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G4bool operator!=(const Index& rhs) const
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{
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return x != rhs.x || y != rhs.y || z != rhs.z;
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}
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G4bool operator<(const Index& rhs) const
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{
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if(x != rhs.x)
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{
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return x < rhs.x;
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}
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if(y != rhs.y)
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{
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return y < rhs.y;
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}
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if(z != rhs.z)
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{
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return z < rhs.z;
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}
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return false;
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}
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friend std::ostream& operator<<(std::ostream& s, const Index& rhs);
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G4int x = 0;
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G4int y = 0;
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G4int z = 0;
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};
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struct hashFunc
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{
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size_t operator()(const Index& k) const
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{
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size_t h1 = std::hash<G4int>()(k.x);
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size_t h2 = std::hash<G4int>()(k.y);
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size_t h3 = std::hash<G4int>()(k.z);
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// Combine the hashes using a consistent and well-distributed technique
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size_t seed = 0;
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seed ^= h1 + 0x9e3779b9 + (seed << 6) + (seed >> 2);
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seed ^= h2 + 0x9e3779b9 + (seed << 6) + (seed >> 2);
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seed ^= h3 + 0x9e3779b9 + (seed << 6) + (seed >> 2);
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return seed;
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}
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};
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};
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#endif
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