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24 |
24 |
25 namespace lemon { |
25 namespace lemon { |
26 |
26 |
27 /// \brief Dummy type to make it easier to create invalid iterators. |
27 /// \brief Dummy type to make it easier to create invalid iterators. |
28 /// |
28 /// |
|
29 /// Dummy type to make it easier to create invalid iterators. |
29 /// See \ref INVALID for the usage. |
30 /// See \ref INVALID for the usage. |
30 struct Invalid { |
31 struct Invalid { |
31 public: |
32 public: |
32 bool operator==(Invalid) { return true; } |
33 bool operator==(Invalid) { return true; } |
33 bool operator!=(Invalid) { return false; } |
34 bool operator!=(Invalid) { return false; } |