| Geant4 Cross Reference |
1 //
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4 // * *
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25 //
26 //
27 // Base type key class
28 //
29 // Jane Tinslay, September 2006
30 //
31 #ifndef G4TYPEKEY_HH
32 #define G4TYPEKEY_HH
33
34 #include "globals.hh"
35 #include <ostream>
36
37 class G4TypeKey {
38
39 public:
40
41 using Key = unsigned long;
42
43 // Constructor
44 G4TypeKey() = default;
45
46 // Destructor
47 virtual ~G4TypeKey() = default;
48
49 G4bool IsValid() {
50 return (0 != fMyKey);
51 }
52
53 // Operators
54 Key operator()() const {return fMyKey;}
55 G4bool operator==(const G4TypeKey& rhs) const {return fMyKey == rhs.fMyKey;}
56 G4bool operator!=(const G4TypeKey& rhs) const {return !operator==(rhs);}
57 G4bool operator<(const G4TypeKey& rhs) const {return fMyKey < rhs.fMyKey;}
58 G4bool operator>(const G4TypeKey& rhs) const {return fMyKey > rhs.fMyKey;}
59
60 friend std::ostream& operator<<(std::ostream& out, const G4TypeKey& key){
61 return out<< key.fMyKey;
62 }
63
64 protected:
65
66 Key NextKey() const {
67 static G4ThreadLocal Key *npKey = nullptr ;
68 if (npKey == nullptr) { npKey = new Key; *npKey = 0; }
69 Key &nKey = *npKey;
70 return ++nKey;
71 }
72
73 Key fMyKey{0};
74
75 };
76
77 #endif
78