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1 /* -*- mode: C++; indent-tabs-mode: nil; -*- |
1 /* -*- mode: C++; indent-tabs-mode: nil; -*- |
2 * |
2 * |
3 * This file is a part of LEMON, a generic C++ optimization library. |
3 * This file is a part of LEMON, a generic C++ optimization library. |
4 * |
4 * |
5 * Copyright (C) 2003-2008 |
5 * Copyright (C) 2003-2011 |
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
7 * (Egervary Research Group on Combinatorial Optimization, EGRES). |
7 * (Egervary Research Group on Combinatorial Optimization, EGRES). |
8 * |
8 * |
9 * Permission to use, modify and distribute this software is granted |
9 * Permission to use, modify and distribute this software is granted |
10 * provided that this copyright notice appears in all copies. For |
10 * provided that this copyright notice appears in all copies. For |
838 |
838 |
839 int id; |
839 int id; |
840 explicit Arc(int pid) { id = pid;} |
840 explicit Arc(int pid) { id = pid;} |
841 |
841 |
842 public: |
842 public: |
843 operator Edge() const { |
843 operator Edge() const { |
844 return id != -1 ? edgeFromId(id / 2) : INVALID; |
844 return id != -1 ? edgeFromId(id / 2) : INVALID; |
845 } |
845 } |
846 |
846 |
847 Arc() {} |
847 Arc() {} |
848 Arc (Invalid) { id = -1; } |
848 Arc (Invalid) { id = -1; } |
849 bool operator==(const Arc& arc) const {return id == arc.id;} |
849 bool operator==(const Arc& arc) const {return id == arc.id;} |