Add keep argument for Graph::remove_unused_nodes() - #620
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arcondello
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Aug 14, 2026
| // indicate unsorted | ||
| constexpr ssize_t seen = -2; // already checked for duplicates | ||
| constexpr ssize_t drop = -3; // marked for deletion | ||
| constexpr ssize_t SEEN = -2; // already checked for duplicates |
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This is to keep a standard convention between the two Graph::remove_ methods.
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