0
8
0
46
46
28
30
45
45
32
31
13
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| ... | ... |
@@ -40,78 +40,78 @@ |
| 40 | 40 |
struct BfsDefaultTraits |
| 41 | 41 |
{
|
| 42 | 42 |
///The type of the digraph the algorithm runs on. |
| 43 | 43 |
typedef GR Digraph; |
| 44 | 44 |
|
| 45 | 45 |
///\brief The type of the map that stores the predecessor |
| 46 | 46 |
///arcs of the shortest paths. |
| 47 | 47 |
/// |
| 48 | 48 |
///The type of the map that stores the predecessor |
| 49 | 49 |
///arcs of the shortest paths. |
| 50 | 50 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 51 | 51 |
typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; |
| 52 |
///Instantiates a PredMap. |
|
| 52 |
///Instantiates a \c PredMap. |
|
| 53 | 53 |
|
| 54 |
///This function instantiates a PredMap. |
|
| 54 |
///This function instantiates a \ref PredMap. |
|
| 55 | 55 |
///\param g is the digraph, to which we would like to define the |
| 56 |
///PredMap. |
|
| 56 |
///\ref PredMap. |
|
| 57 | 57 |
static PredMap *createPredMap(const Digraph &g) |
| 58 | 58 |
{
|
| 59 | 59 |
return new PredMap(g); |
| 60 | 60 |
} |
| 61 | 61 |
|
| 62 | 62 |
///The type of the map that indicates which nodes are processed. |
| 63 | 63 |
|
| 64 | 64 |
///The type of the map that indicates which nodes are processed. |
| 65 | 65 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 66 | 66 |
typedef NullMap<typename Digraph::Node,bool> ProcessedMap; |
| 67 |
///Instantiates a ProcessedMap. |
|
| 67 |
///Instantiates a \c ProcessedMap. |
|
| 68 | 68 |
|
| 69 |
///This function instantiates a ProcessedMap. |
|
| 69 |
///This function instantiates a \ref ProcessedMap. |
|
| 70 | 70 |
///\param g is the digraph, to which |
| 71 |
///we would like to define the ProcessedMap |
|
| 71 |
///we would like to define the \ref ProcessedMap |
|
| 72 | 72 |
#ifdef DOXYGEN |
| 73 | 73 |
static ProcessedMap *createProcessedMap(const Digraph &g) |
| 74 | 74 |
#else |
| 75 | 75 |
static ProcessedMap *createProcessedMap(const Digraph &) |
| 76 | 76 |
#endif |
| 77 | 77 |
{
|
| 78 | 78 |
return new ProcessedMap(); |
| 79 | 79 |
} |
| 80 | 80 |
|
| 81 | 81 |
///The type of the map that indicates which nodes are reached. |
| 82 | 82 |
|
| 83 | 83 |
///The type of the map that indicates which nodes are reached. |
| 84 | 84 |
///It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 85 | 85 |
typedef typename Digraph::template NodeMap<bool> ReachedMap; |
| 86 |
///Instantiates a ReachedMap. |
|
| 86 |
///Instantiates a \c ReachedMap. |
|
| 87 | 87 |
|
| 88 |
///This function instantiates a ReachedMap. |
|
| 88 |
///This function instantiates a \ref ReachedMap. |
|
| 89 | 89 |
///\param g is the digraph, to which |
| 90 |
///we would like to define the ReachedMap. |
|
| 90 |
///we would like to define the \ref ReachedMap. |
|
| 91 | 91 |
static ReachedMap *createReachedMap(const Digraph &g) |
| 92 | 92 |
{
|
| 93 | 93 |
return new ReachedMap(g); |
| 94 | 94 |
} |
| 95 | 95 |
|
| 96 | 96 |
///The type of the map that stores the distances of the nodes. |
| 97 | 97 |
|
| 98 | 98 |
///The type of the map that stores the distances of the nodes. |
| 99 | 99 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 100 | 100 |
typedef typename Digraph::template NodeMap<int> DistMap; |
| 101 |
///Instantiates a DistMap. |
|
| 101 |
///Instantiates a \c DistMap. |
|
| 102 | 102 |
|
| 103 |
///This function instantiates a DistMap. |
|
| 103 |
///This function instantiates a \ref DistMap. |
|
| 104 | 104 |
///\param g is the digraph, to which we would like to define the |
| 105 |
///DistMap. |
|
| 105 |
///\ref DistMap. |
|
| 106 | 106 |
static DistMap *createDistMap(const Digraph &g) |
| 107 | 107 |
{
|
| 108 | 108 |
return new DistMap(g); |
| 109 | 109 |
} |
| 110 | 110 |
}; |
| 111 | 111 |
|
| 112 | 112 |
///%BFS algorithm class. |
| 113 | 113 |
|
| 114 | 114 |
///\ingroup search |
| 115 | 115 |
///This class provides an efficient implementation of the %BFS algorithm. |
| 116 | 116 |
/// |
| 117 | 117 |
///There is also a \ref bfs() "function-type interface" for the BFS |
| ... | ... |
@@ -212,107 +212,107 @@ |
| 212 | 212 |
///@{
|
| 213 | 213 |
|
| 214 | 214 |
template <class T> |
| 215 | 215 |
struct SetPredMapTraits : public Traits {
|
| 216 | 216 |
typedef T PredMap; |
| 217 | 217 |
static PredMap *createPredMap(const Digraph &) |
| 218 | 218 |
{
|
| 219 | 219 |
LEMON_ASSERT(false, "PredMap is not initialized"); |
| 220 | 220 |
return 0; // ignore warnings |
| 221 | 221 |
} |
| 222 | 222 |
}; |
| 223 | 223 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 224 |
///PredMap type. |
|
| 224 |
///\c PredMap type. |
|
| 225 | 225 |
/// |
| 226 | 226 |
///\ref named-templ-param "Named parameter" for setting |
| 227 |
///PredMap type. |
|
| 227 |
///\c PredMap type. |
|
| 228 | 228 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 229 | 229 |
template <class T> |
| 230 | 230 |
struct SetPredMap : public Bfs< Digraph, SetPredMapTraits<T> > {
|
| 231 | 231 |
typedef Bfs< Digraph, SetPredMapTraits<T> > Create; |
| 232 | 232 |
}; |
| 233 | 233 |
|
| 234 | 234 |
template <class T> |
| 235 | 235 |
struct SetDistMapTraits : public Traits {
|
| 236 | 236 |
typedef T DistMap; |
| 237 | 237 |
static DistMap *createDistMap(const Digraph &) |
| 238 | 238 |
{
|
| 239 | 239 |
LEMON_ASSERT(false, "DistMap is not initialized"); |
| 240 | 240 |
return 0; // ignore warnings |
| 241 | 241 |
} |
| 242 | 242 |
}; |
| 243 | 243 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 244 |
///DistMap type. |
|
| 244 |
///\c DistMap type. |
|
| 245 | 245 |
/// |
| 246 | 246 |
///\ref named-templ-param "Named parameter" for setting |
| 247 |
///DistMap type. |
|
| 247 |
///\c DistMap type. |
|
| 248 | 248 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 249 | 249 |
template <class T> |
| 250 | 250 |
struct SetDistMap : public Bfs< Digraph, SetDistMapTraits<T> > {
|
| 251 | 251 |
typedef Bfs< Digraph, SetDistMapTraits<T> > Create; |
| 252 | 252 |
}; |
| 253 | 253 |
|
| 254 | 254 |
template <class T> |
| 255 | 255 |
struct SetReachedMapTraits : public Traits {
|
| 256 | 256 |
typedef T ReachedMap; |
| 257 | 257 |
static ReachedMap *createReachedMap(const Digraph &) |
| 258 | 258 |
{
|
| 259 | 259 |
LEMON_ASSERT(false, "ReachedMap is not initialized"); |
| 260 | 260 |
return 0; // ignore warnings |
| 261 | 261 |
} |
| 262 | 262 |
}; |
| 263 | 263 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 264 |
///ReachedMap type. |
|
| 264 |
///\c ReachedMap type. |
|
| 265 | 265 |
/// |
| 266 | 266 |
///\ref named-templ-param "Named parameter" for setting |
| 267 |
///ReachedMap type. |
|
| 267 |
///\c ReachedMap type. |
|
| 268 | 268 |
///It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 269 | 269 |
template <class T> |
| 270 | 270 |
struct SetReachedMap : public Bfs< Digraph, SetReachedMapTraits<T> > {
|
| 271 | 271 |
typedef Bfs< Digraph, SetReachedMapTraits<T> > Create; |
| 272 | 272 |
}; |
| 273 | 273 |
|
| 274 | 274 |
template <class T> |
| 275 | 275 |
struct SetProcessedMapTraits : public Traits {
|
| 276 | 276 |
typedef T ProcessedMap; |
| 277 | 277 |
static ProcessedMap *createProcessedMap(const Digraph &) |
| 278 | 278 |
{
|
| 279 | 279 |
LEMON_ASSERT(false, "ProcessedMap is not initialized"); |
| 280 | 280 |
return 0; // ignore warnings |
| 281 | 281 |
} |
| 282 | 282 |
}; |
| 283 | 283 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 284 |
///ProcessedMap type. |
|
| 284 |
///\c ProcessedMap type. |
|
| 285 | 285 |
/// |
| 286 | 286 |
///\ref named-templ-param "Named parameter" for setting |
| 287 |
///ProcessedMap type. |
|
| 287 |
///\c ProcessedMap type. |
|
| 288 | 288 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 289 | 289 |
template <class T> |
| 290 | 290 |
struct SetProcessedMap : public Bfs< Digraph, SetProcessedMapTraits<T> > {
|
| 291 | 291 |
typedef Bfs< Digraph, SetProcessedMapTraits<T> > Create; |
| 292 | 292 |
}; |
| 293 | 293 |
|
| 294 | 294 |
struct SetStandardProcessedMapTraits : public Traits {
|
| 295 | 295 |
typedef typename Digraph::template NodeMap<bool> ProcessedMap; |
| 296 | 296 |
static ProcessedMap *createProcessedMap(const Digraph &g) |
| 297 | 297 |
{
|
| 298 | 298 |
return new ProcessedMap(g); |
| 299 | 299 |
return 0; // ignore warnings |
| 300 | 300 |
} |
| 301 | 301 |
}; |
| 302 | 302 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 303 |
///ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 303 |
///\c ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 304 | 304 |
/// |
| 305 | 305 |
///\ref named-templ-param "Named parameter" for setting |
| 306 |
///ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 306 |
///\c ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 307 | 307 |
///If you don't set it explicitly, it will be automatically allocated. |
| 308 | 308 |
struct SetStandardProcessedMap : |
| 309 | 309 |
public Bfs< Digraph, SetStandardProcessedMapTraits > {
|
| 310 | 310 |
typedef Bfs< Digraph, SetStandardProcessedMapTraits > Create; |
| 311 | 311 |
}; |
| 312 | 312 |
|
| 313 | 313 |
///@} |
| 314 | 314 |
|
| 315 | 315 |
public: |
| 316 | 316 |
|
| 317 | 317 |
///Constructor. |
| 318 | 318 |
|
| ... | ... |
@@ -1185,27 +1185,27 @@ |
| 1185 | 1185 |
template<class GR> |
| 1186 | 1186 |
BfsWizard<BfsWizardBase<GR> > |
| 1187 | 1187 |
bfs(const GR &digraph) |
| 1188 | 1188 |
{
|
| 1189 | 1189 |
return BfsWizard<BfsWizardBase<GR> >(digraph); |
| 1190 | 1190 |
} |
| 1191 | 1191 |
|
| 1192 | 1192 |
#ifdef DOXYGEN |
| 1193 | 1193 |
/// \brief Visitor class for BFS. |
| 1194 | 1194 |
/// |
| 1195 | 1195 |
/// This class defines the interface of the BfsVisit events, and |
| 1196 | 1196 |
/// it could be the base of a real visitor class. |
| 1197 |
template <typename |
|
| 1197 |
template <typename GR> |
|
| 1198 | 1198 |
struct BfsVisitor {
|
| 1199 |
typedef |
|
| 1199 |
typedef GR Digraph; |
|
| 1200 | 1200 |
typedef typename Digraph::Arc Arc; |
| 1201 | 1201 |
typedef typename Digraph::Node Node; |
| 1202 | 1202 |
/// \brief Called for the source node(s) of the BFS. |
| 1203 | 1203 |
/// |
| 1204 | 1204 |
/// This function is called for the source node(s) of the BFS. |
| 1205 | 1205 |
void start(const Node& node) {}
|
| 1206 | 1206 |
/// \brief Called when a node is reached first time. |
| 1207 | 1207 |
/// |
| 1208 | 1208 |
/// This function is called when a node is reached first time. |
| 1209 | 1209 |
void reach(const Node& node) {}
|
| 1210 | 1210 |
/// \brief Called when a node is processed. |
| 1211 | 1211 |
/// |
| ... | ... |
@@ -1215,27 +1215,27 @@ |
| 1215 | 1215 |
/// |
| 1216 | 1216 |
/// This function is called when the BFS finds an arc whose target node |
| 1217 | 1217 |
/// is not reached yet. |
| 1218 | 1218 |
void discover(const Arc& arc) {}
|
| 1219 | 1219 |
/// \brief Called when an arc is examined but its target node is |
| 1220 | 1220 |
/// already discovered. |
| 1221 | 1221 |
/// |
| 1222 | 1222 |
/// This function is called when an arc is examined but its target node is |
| 1223 | 1223 |
/// already discovered. |
| 1224 | 1224 |
void examine(const Arc& arc) {}
|
| 1225 | 1225 |
}; |
| 1226 | 1226 |
#else |
| 1227 |
template <typename |
|
| 1227 |
template <typename GR> |
|
| 1228 | 1228 |
struct BfsVisitor {
|
| 1229 |
typedef |
|
| 1229 |
typedef GR Digraph; |
|
| 1230 | 1230 |
typedef typename Digraph::Arc Arc; |
| 1231 | 1231 |
typedef typename Digraph::Node Node; |
| 1232 | 1232 |
void start(const Node&) {}
|
| 1233 | 1233 |
void reach(const Node&) {}
|
| 1234 | 1234 |
void process(const Node&) {}
|
| 1235 | 1235 |
void discover(const Arc&) {}
|
| 1236 | 1236 |
void examine(const Arc&) {}
|
| 1237 | 1237 |
|
| 1238 | 1238 |
template <typename _Visitor> |
| 1239 | 1239 |
struct Constraints {
|
| 1240 | 1240 |
void constraints() {
|
| 1241 | 1241 |
Arc arc; |
| ... | ... |
@@ -1245,95 +1245,95 @@ |
| 1245 | 1245 |
visitor.process(node); |
| 1246 | 1246 |
visitor.discover(arc); |
| 1247 | 1247 |
visitor.examine(arc); |
| 1248 | 1248 |
} |
| 1249 | 1249 |
_Visitor& visitor; |
| 1250 | 1250 |
}; |
| 1251 | 1251 |
}; |
| 1252 | 1252 |
#endif |
| 1253 | 1253 |
|
| 1254 | 1254 |
/// \brief Default traits class of BfsVisit class. |
| 1255 | 1255 |
/// |
| 1256 | 1256 |
/// Default traits class of BfsVisit class. |
| 1257 |
/// \tparam _Digraph The type of the digraph the algorithm runs on. |
|
| 1258 |
template<class _Digraph> |
|
| 1257 |
/// \tparam GR The type of the digraph the algorithm runs on. |
|
| 1258 |
template<class GR> |
|
| 1259 | 1259 |
struct BfsVisitDefaultTraits {
|
| 1260 | 1260 |
|
| 1261 | 1261 |
/// \brief The type of the digraph the algorithm runs on. |
| 1262 |
typedef |
|
| 1262 |
typedef GR Digraph; |
|
| 1263 | 1263 |
|
| 1264 | 1264 |
/// \brief The type of the map that indicates which nodes are reached. |
| 1265 | 1265 |
/// |
| 1266 | 1266 |
/// The type of the map that indicates which nodes are reached. |
| 1267 | 1267 |
/// It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 1268 | 1268 |
typedef typename Digraph::template NodeMap<bool> ReachedMap; |
| 1269 | 1269 |
|
| 1270 | 1270 |
/// \brief Instantiates a ReachedMap. |
| 1271 | 1271 |
/// |
| 1272 | 1272 |
/// This function instantiates a ReachedMap. |
| 1273 | 1273 |
/// \param digraph is the digraph, to which |
| 1274 | 1274 |
/// we would like to define the ReachedMap. |
| 1275 | 1275 |
static ReachedMap *createReachedMap(const Digraph &digraph) {
|
| 1276 | 1276 |
return new ReachedMap(digraph); |
| 1277 | 1277 |
} |
| 1278 | 1278 |
|
| 1279 | 1279 |
}; |
| 1280 | 1280 |
|
| 1281 | 1281 |
/// \ingroup search |
| 1282 | 1282 |
/// |
| 1283 |
/// \brief |
|
| 1283 |
/// \brief BFS algorithm class with visitor interface. |
|
| 1284 | 1284 |
/// |
| 1285 |
/// This class provides an efficient implementation of the |
|
| 1285 |
/// This class provides an efficient implementation of the BFS algorithm |
|
| 1286 | 1286 |
/// with visitor interface. |
| 1287 | 1287 |
/// |
| 1288 |
/// The |
|
| 1288 |
/// The BfsVisit class provides an alternative interface to the Bfs |
|
| 1289 | 1289 |
/// class. It works with callback mechanism, the BfsVisit object calls |
| 1290 | 1290 |
/// the member functions of the \c Visitor class on every BFS event. |
| 1291 | 1291 |
/// |
| 1292 | 1292 |
/// This interface of the BFS algorithm should be used in special cases |
| 1293 | 1293 |
/// when extra actions have to be performed in connection with certain |
| 1294 | 1294 |
/// events of the BFS algorithm. Otherwise consider to use Bfs or bfs() |
| 1295 | 1295 |
/// instead. |
| 1296 | 1296 |
/// |
| 1297 |
/// \tparam _Digraph The type of the digraph the algorithm runs on. |
|
| 1298 |
/// The default value is |
|
| 1299 |
/// \ref ListDigraph. The value of _Digraph is not used directly by |
|
| 1300 |
/// \ref BfsVisit, it is only passed to \ref BfsVisitDefaultTraits. |
|
| 1301 |
/// \tparam _Visitor The Visitor type that is used by the algorithm. |
|
| 1302 |
/// \ref BfsVisitor "BfsVisitor<_Digraph>" is an empty visitor, which |
|
| 1297 |
/// \tparam GR The type of the digraph the algorithm runs on. |
|
| 1298 |
/// The default type is \ref ListDigraph. |
|
| 1299 |
/// The value of GR is not used directly by \ref BfsVisit, |
|
| 1300 |
/// it is only passed to \ref BfsVisitDefaultTraits. |
|
| 1301 |
/// \tparam VS The Visitor type that is used by the algorithm. |
|
| 1302 |
/// \ref BfsVisitor "BfsVisitor<GR>" is an empty visitor, which |
|
| 1303 | 1303 |
/// does not observe the BFS events. If you want to observe the BFS |
| 1304 | 1304 |
/// events, you should implement your own visitor class. |
| 1305 |
/// \tparam |
|
| 1305 |
/// \tparam TR Traits class to set various data types used by the |
|
| 1306 | 1306 |
/// algorithm. The default traits class is |
| 1307 |
/// \ref BfsVisitDefaultTraits "BfsVisitDefaultTraits< |
|
| 1307 |
/// \ref BfsVisitDefaultTraits "BfsVisitDefaultTraits<GR>". |
|
| 1308 | 1308 |
/// See \ref BfsVisitDefaultTraits for the documentation of |
| 1309 | 1309 |
/// a BFS visit traits class. |
| 1310 | 1310 |
#ifdef DOXYGEN |
| 1311 |
template <typename |
|
| 1311 |
template <typename GR, typename VS, typename TR> |
|
| 1312 | 1312 |
#else |
| 1313 |
template <typename _Digraph = ListDigraph, |
|
| 1314 |
typename _Visitor = BfsVisitor<_Digraph>, |
|
| 1315 |
|
|
| 1313 |
template <typename GR = ListDigraph, |
|
| 1314 |
typename VS = BfsVisitor<GR>, |
|
| 1315 |
typename TR = BfsVisitDefaultTraits<GR> > |
|
| 1316 | 1316 |
#endif |
| 1317 | 1317 |
class BfsVisit {
|
| 1318 | 1318 |
public: |
| 1319 | 1319 |
|
| 1320 | 1320 |
///The traits class. |
| 1321 |
typedef |
|
| 1321 |
typedef TR Traits; |
|
| 1322 | 1322 |
|
| 1323 | 1323 |
///The type of the digraph the algorithm runs on. |
| 1324 | 1324 |
typedef typename Traits::Digraph Digraph; |
| 1325 | 1325 |
|
| 1326 | 1326 |
///The visitor type used by the algorithm. |
| 1327 |
typedef |
|
| 1327 |
typedef VS Visitor; |
|
| 1328 | 1328 |
|
| 1329 | 1329 |
///The type of the map that indicates which nodes are reached. |
| 1330 | 1330 |
typedef typename Traits::ReachedMap ReachedMap; |
| 1331 | 1331 |
|
| 1332 | 1332 |
private: |
| 1333 | 1333 |
|
| 1334 | 1334 |
typedef typename Digraph::Node Node; |
| 1335 | 1335 |
typedef typename Digraph::NodeIt NodeIt; |
| 1336 | 1336 |
typedef typename Digraph::Arc Arc; |
| 1337 | 1337 |
typedef typename Digraph::OutArcIt OutArcIt; |
| 1338 | 1338 |
|
| 1339 | 1339 |
//Pointer to the underlying digraph. |
| ... | ... |
@@ -126,25 +126,25 @@ |
| 126 | 126 |
// This operator assigns for each item in the map the |
| 127 | 127 |
// value mapped to the same item in the copied map. |
| 128 | 128 |
// The parameter map should be indiced with the same |
| 129 | 129 |
// itemset because this assign operator does not change |
| 130 | 130 |
// the container of the map. |
| 131 | 131 |
ArrayMap& operator=(const ArrayMap& cmap) {
|
| 132 | 132 |
return operator=<ArrayMap>(cmap); |
| 133 | 133 |
} |
| 134 | 134 |
|
| 135 | 135 |
|
| 136 | 136 |
// \brief Template assign operator. |
| 137 | 137 |
// |
| 138 |
// The given parameter should |
|
| 138 |
// The given parameter should conform to the ReadMap |
|
| 139 | 139 |
// concecpt and could be indiced by the current item set of |
| 140 | 140 |
// the NodeMap. In this case the value for each item |
| 141 | 141 |
// is assigned by the value of the given ReadMap. |
| 142 | 142 |
template <typename CMap> |
| 143 | 143 |
ArrayMap& operator=(const CMap& cmap) {
|
| 144 | 144 |
checkConcept<concepts::ReadMap<Key, _Value>, CMap>(); |
| 145 | 145 |
const typename Parent::Notifier* nf = Parent::notifier(); |
| 146 | 146 |
Item it; |
| 147 | 147 |
for (nf->first(it); it != INVALID; nf->next(it)) {
|
| 148 | 148 |
set(it, cmap[it]); |
| 149 | 149 |
} |
| 150 | 150 |
return *this; |
| ... | ... |
@@ -115,25 +115,25 @@ |
| 115 | 115 |
// This operator assigns for each item in the map the |
| 116 | 116 |
// value mapped to the same item in the copied map. |
| 117 | 117 |
// The parameter map should be indiced with the same |
| 118 | 118 |
// itemset because this assign operator does not change |
| 119 | 119 |
// the container of the map. |
| 120 | 120 |
VectorMap& operator=(const VectorMap& cmap) {
|
| 121 | 121 |
return operator=<VectorMap>(cmap); |
| 122 | 122 |
} |
| 123 | 123 |
|
| 124 | 124 |
|
| 125 | 125 |
// \brief Template assign operator. |
| 126 | 126 |
// |
| 127 |
// The given parameter should |
|
| 127 |
// The given parameter should conform to the ReadMap |
|
| 128 | 128 |
// concecpt and could be indiced by the current item set of |
| 129 | 129 |
// the NodeMap. In this case the value for each item |
| 130 | 130 |
// is assigned by the value of the given ReadMap. |
| 131 | 131 |
template <typename CMap> |
| 132 | 132 |
VectorMap& operator=(const CMap& cmap) {
|
| 133 | 133 |
checkConcept<concepts::ReadMap<Key, _Value>, CMap>(); |
| 134 | 134 |
const typename Parent::Notifier* nf = Parent::notifier(); |
| 135 | 135 |
Item it; |
| 136 | 136 |
for (nf->first(it); it != INVALID; nf->next(it)) {
|
| 137 | 137 |
set(it, cmap[it]); |
| 138 | 138 |
} |
| 139 | 139 |
return *this; |
| ... | ... |
@@ -22,56 +22,56 @@ |
| 22 | 22 |
#include <lemon/tolerance.h> |
| 23 | 23 |
#include <lemon/elevator.h> |
| 24 | 24 |
|
| 25 | 25 |
///\ingroup max_flow |
| 26 | 26 |
///\file |
| 27 | 27 |
///\brief Push-relabel algorithm for finding a feasible circulation. |
| 28 | 28 |
/// |
| 29 | 29 |
namespace lemon {
|
| 30 | 30 |
|
| 31 | 31 |
/// \brief Default traits class of Circulation class. |
| 32 | 32 |
/// |
| 33 | 33 |
/// Default traits class of Circulation class. |
| 34 |
/// \tparam _Diraph Digraph type. |
|
| 35 |
/// \tparam _LCapMap Lower bound capacity map type. |
|
| 36 |
/// \tparam _UCapMap Upper bound capacity map type. |
|
| 37 |
/// \tparam _DeltaMap Delta map type. |
|
| 38 |
template <typename _Diraph, typename _LCapMap, |
|
| 39 |
typename _UCapMap, typename _DeltaMap> |
|
| 34 |
/// \tparam GR Digraph type. |
|
| 35 |
/// \tparam LM Lower bound capacity map type. |
|
| 36 |
/// \tparam UM Upper bound capacity map type. |
|
| 37 |
/// \tparam DM Delta map type. |
|
| 38 |
template <typename GR, typename LM, |
|
| 39 |
typename UM, typename DM> |
|
| 40 | 40 |
struct CirculationDefaultTraits {
|
| 41 | 41 |
|
| 42 | 42 |
/// \brief The type of the digraph the algorithm runs on. |
| 43 |
typedef |
|
| 43 |
typedef GR Digraph; |
|
| 44 | 44 |
|
| 45 | 45 |
/// \brief The type of the map that stores the circulation lower |
| 46 | 46 |
/// bound. |
| 47 | 47 |
/// |
| 48 | 48 |
/// The type of the map that stores the circulation lower bound. |
| 49 | 49 |
/// It must meet the \ref concepts::ReadMap "ReadMap" concept. |
| 50 |
typedef |
|
| 50 |
typedef LM LCapMap; |
|
| 51 | 51 |
|
| 52 | 52 |
/// \brief The type of the map that stores the circulation upper |
| 53 | 53 |
/// bound. |
| 54 | 54 |
/// |
| 55 | 55 |
/// The type of the map that stores the circulation upper bound. |
| 56 | 56 |
/// It must meet the \ref concepts::ReadMap "ReadMap" concept. |
| 57 |
typedef |
|
| 57 |
typedef UM UCapMap; |
|
| 58 | 58 |
|
| 59 | 59 |
/// \brief The type of the map that stores the lower bound for |
| 60 | 60 |
/// the supply of the nodes. |
| 61 | 61 |
/// |
| 62 | 62 |
/// The type of the map that stores the lower bound for the supply |
| 63 | 63 |
/// of the nodes. It must meet the \ref concepts::ReadMap "ReadMap" |
| 64 | 64 |
/// concept. |
| 65 |
typedef |
|
| 65 |
typedef DM DeltaMap; |
|
| 66 | 66 |
|
| 67 | 67 |
/// \brief The type of the flow values. |
| 68 | 68 |
typedef typename DeltaMap::Value Value; |
| 69 | 69 |
|
| 70 | 70 |
/// \brief The type of the map that stores the flow values. |
| 71 | 71 |
/// |
| 72 | 72 |
/// The type of the map that stores the flow values. |
| 73 | 73 |
/// It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 74 | 74 |
typedef typename Digraph::template ArcMap<Value> FlowMap; |
| 75 | 75 |
|
| 76 | 76 |
/// \brief Instantiates a FlowMap. |
| 77 | 77 |
/// |
| ... | ... |
@@ -128,53 +128,51 @@ |
| 128 | 128 |
\note \f$delta(v)\f$ specifies a lower bound for the supply of node |
| 129 | 129 |
\f$v\f$. It can be either positive or negative, however note that |
| 130 | 130 |
\f$\sum_{v\in V}delta(v)\f$ should be zero or negative in order to
|
| 131 | 131 |
have a feasible solution. |
| 132 | 132 |
|
| 133 | 133 |
\note A special case of this problem is when |
| 134 | 134 |
\f$\sum_{v\in V}delta(v) = 0\f$. Then the supply of each node \f$v\f$
|
| 135 | 135 |
will be \e equal \e to \f$delta(v)\f$, if a circulation can be found. |
| 136 | 136 |
Thus a feasible solution for the |
| 137 | 137 |
\ref min_cost_flow "minimum cost flow" problem can be calculated |
| 138 | 138 |
in this way. |
| 139 | 139 |
|
| 140 |
\tparam _Digraph The type of the digraph the algorithm runs on. |
|
| 141 |
\tparam _LCapMap The type of the lower bound capacity map. The default |
|
| 142 |
map type is \ref concepts::Digraph::ArcMap "_Digraph::ArcMap<int>". |
|
| 143 |
\tparam _UCapMap The type of the upper bound capacity map. The default |
|
| 144 |
map type is \c _LCapMap. |
|
| 145 |
\tparam _DeltaMap The type of the map that stores the lower bound |
|
| 140 |
\tparam GR The type of the digraph the algorithm runs on. |
|
| 141 |
\tparam LM The type of the lower bound capacity map. The default |
|
| 142 |
map type is \ref concepts::Digraph::ArcMap "GR::ArcMap<int>". |
|
| 143 |
\tparam UM The type of the upper bound capacity map. The default |
|
| 144 |
map type is \c LM. |
|
| 145 |
\tparam DM The type of the map that stores the lower bound |
|
| 146 | 146 |
for the supply of the nodes. The default map type is |
| 147 |
\ |
|
| 147 |
\ref concepts::Digraph::NodeMap "GR::NodeMap<UM::Value>". |
|
| 148 | 148 |
*/ |
| 149 | 149 |
#ifdef DOXYGEN |
| 150 |
template< typename _Digraph, |
|
| 151 |
typename _LCapMap, |
|
| 152 |
typename _UCapMap, |
|
| 153 |
typename _DeltaMap, |
|
| 154 |
|
|
| 150 |
template< typename GR, |
|
| 151 |
typename LM, |
|
| 152 |
typename UM, |
|
| 153 |
typename DM, |
|
| 154 |
typename TR > |
|
| 155 | 155 |
#else |
| 156 |
template< typename _Digraph, |
|
| 157 |
typename _LCapMap = typename _Digraph::template ArcMap<int>, |
|
| 158 |
typename _UCapMap = _LCapMap, |
|
| 159 |
typename _DeltaMap = typename _Digraph:: |
|
| 160 |
template NodeMap<typename _UCapMap::Value>, |
|
| 161 |
typename _Traits=CirculationDefaultTraits<_Digraph, _LCapMap, |
|
| 162 |
|
|
| 156 |
template< typename GR, |
|
| 157 |
typename LM = typename GR::template ArcMap<int>, |
|
| 158 |
typename UM = LM, |
|
| 159 |
typename DM = typename GR::template NodeMap<typename UM::Value>, |
|
| 160 |
typename TR = CirculationDefaultTraits<GR, LM, UM, DM> > |
|
| 163 | 161 |
#endif |
| 164 | 162 |
class Circulation {
|
| 165 | 163 |
public: |
| 166 | 164 |
|
| 167 | 165 |
///The \ref CirculationDefaultTraits "traits class" of the algorithm. |
| 168 |
typedef |
|
| 166 |
typedef TR Traits; |
|
| 169 | 167 |
///The type of the digraph the algorithm runs on. |
| 170 | 168 |
typedef typename Traits::Digraph Digraph; |
| 171 | 169 |
///The type of the flow values. |
| 172 | 170 |
typedef typename Traits::Value Value; |
| 173 | 171 |
|
| 174 | 172 |
/// The type of the lower bound capacity map. |
| 175 | 173 |
typedef typename Traits::LCapMap LCapMap; |
| 176 | 174 |
/// The type of the upper bound capacity map. |
| 177 | 175 |
typedef typename Traits::UCapMap UCapMap; |
| 178 | 176 |
/// \brief The type of the map that stores the lower bound for |
| 179 | 177 |
/// the supply of the nodes. |
| 180 | 178 |
typedef typename Traits::DeltaMap DeltaMap; |
| ... | ... |
@@ -105,25 +105,25 @@ |
| 105 | 105 |
b = (ia == INVALID) && (ib != INVALID); |
| 106 | 106 |
b = (ia < ib); |
| 107 | 107 |
} |
| 108 | 108 |
|
| 109 | 109 |
const _GraphItem &ia; |
| 110 | 110 |
const _GraphItem &ib; |
| 111 | 111 |
}; |
| 112 | 112 |
}; |
| 113 | 113 |
|
| 114 | 114 |
/// \brief An empty base directed graph class. |
| 115 | 115 |
/// |
| 116 | 116 |
/// This class provides the minimal set of features needed for a |
| 117 |
/// directed graph structure. All digraph concepts have to |
|
| 117 |
/// directed graph structure. All digraph concepts have to |
|
| 118 | 118 |
/// conform to this base directed graph. It just provides types |
| 119 | 119 |
/// for nodes and arcs and functions to get the source and the |
| 120 | 120 |
/// target of the arcs. |
| 121 | 121 |
class BaseDigraphComponent {
|
| 122 | 122 |
public: |
| 123 | 123 |
|
| 124 | 124 |
typedef BaseDigraphComponent Digraph; |
| 125 | 125 |
|
| 126 | 126 |
/// \brief Node class of the digraph. |
| 127 | 127 |
/// |
| 128 | 128 |
/// This class represents the Nodes of the digraph. |
| 129 | 129 |
/// |
| ... | ... |
@@ -170,25 +170,25 @@ |
| 170 | 170 |
n = digraph.oppositeNode(n, e); |
| 171 | 171 |
} |
| 172 | 172 |
} |
| 173 | 173 |
|
| 174 | 174 |
const _Digraph& digraph; |
| 175 | 175 |
}; |
| 176 | 176 |
}; |
| 177 | 177 |
|
| 178 | 178 |
/// \brief An empty base undirected graph class. |
| 179 | 179 |
/// |
| 180 | 180 |
/// This class provides the minimal set of features needed for an |
| 181 | 181 |
/// undirected graph structure. All undirected graph concepts have |
| 182 |
/// to |
|
| 182 |
/// to conform to this base graph. It just provides types for |
|
| 183 | 183 |
/// nodes, arcs and edges and functions to get the |
| 184 | 184 |
/// source and the target of the arcs and edges, |
| 185 | 185 |
/// conversion from arcs to edges and function to get |
| 186 | 186 |
/// both direction of the edges. |
| 187 | 187 |
class BaseGraphComponent : public BaseDigraphComponent {
|
| 188 | 188 |
public: |
| 189 | 189 |
typedef BaseDigraphComponent::Node Node; |
| 190 | 190 |
typedef BaseDigraphComponent::Arc Arc; |
| 191 | 191 |
/// \brief Undirected arc class of the graph. |
| 192 | 192 |
/// |
| 193 | 193 |
/// This class represents the edges of the graph. |
| 194 | 194 |
/// The undirected graphs can be used as a directed graph which |
| ... | ... |
@@ -285,25 +285,25 @@ |
| 285 | 285 |
} |
| 286 | 286 |
} |
| 287 | 287 |
|
| 288 | 288 |
const _Graph& graph; |
| 289 | 289 |
}; |
| 290 | 290 |
|
| 291 | 291 |
}; |
| 292 | 292 |
|
| 293 | 293 |
/// \brief An empty idable base digraph class. |
| 294 | 294 |
/// |
| 295 | 295 |
/// This class provides beside the core digraph features |
| 296 | 296 |
/// core id functions for the digraph structure. |
| 297 |
/// The most of the base digraphs should |
|
| 297 |
/// The most of the base digraphs should conform to this concept. |
|
| 298 | 298 |
/// The id's are unique and immutable. |
| 299 | 299 |
template <typename _Base = BaseDigraphComponent> |
| 300 | 300 |
class IDableDigraphComponent : public _Base {
|
| 301 | 301 |
public: |
| 302 | 302 |
|
| 303 | 303 |
typedef _Base Base; |
| 304 | 304 |
typedef typename Base::Node Node; |
| 305 | 305 |
typedef typename Base::Arc Arc; |
| 306 | 306 |
|
| 307 | 307 |
/// \brief Gives back an unique integer id for the Node. |
| 308 | 308 |
/// |
| 309 | 309 |
/// Gives back an unique integer id for the Node. |
| ... | ... |
@@ -363,25 +363,25 @@ |
| 363 | 363 |
eid = digraph.maxArcId(); |
| 364 | 364 |
ignore_unused_variable_warning(eid); |
| 365 | 365 |
} |
| 366 | 366 |
|
| 367 | 367 |
const _Digraph& digraph; |
| 368 | 368 |
}; |
| 369 | 369 |
}; |
| 370 | 370 |
|
| 371 | 371 |
/// \brief An empty idable base undirected graph class. |
| 372 | 372 |
/// |
| 373 | 373 |
/// This class provides beside the core undirected graph features |
| 374 | 374 |
/// core id functions for the undirected graph structure. The |
| 375 |
/// most of the base undirected graphs should |
|
| 375 |
/// most of the base undirected graphs should conform to this |
|
| 376 | 376 |
/// concept. The id's are unique and immutable. |
| 377 | 377 |
template <typename _Base = BaseGraphComponent> |
| 378 | 378 |
class IDableGraphComponent : public IDableDigraphComponent<_Base> {
|
| 379 | 379 |
public: |
| 380 | 380 |
|
| 381 | 381 |
typedef _Base Base; |
| 382 | 382 |
typedef typename Base::Edge Edge; |
| 383 | 383 |
|
| 384 | 384 |
using IDableDigraphComponent<_Base>::id; |
| 385 | 385 |
|
| 386 | 386 |
/// \brief Gives back an unique integer id for the Edge. |
| 387 | 387 |
/// |
| ... | ... |
@@ -40,78 +40,78 @@ |
| 40 | 40 |
struct DfsDefaultTraits |
| 41 | 41 |
{
|
| 42 | 42 |
///The type of the digraph the algorithm runs on. |
| 43 | 43 |
typedef GR Digraph; |
| 44 | 44 |
|
| 45 | 45 |
///\brief The type of the map that stores the predecessor |
| 46 | 46 |
///arcs of the %DFS paths. |
| 47 | 47 |
/// |
| 48 | 48 |
///The type of the map that stores the predecessor |
| 49 | 49 |
///arcs of the %DFS paths. |
| 50 | 50 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 51 | 51 |
typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; |
| 52 |
///Instantiates a PredMap. |
|
| 52 |
///Instantiates a \c PredMap. |
|
| 53 | 53 |
|
| 54 |
///This function instantiates a PredMap. |
|
| 54 |
///This function instantiates a \ref PredMap. |
|
| 55 | 55 |
///\param g is the digraph, to which we would like to define the |
| 56 |
///PredMap. |
|
| 56 |
///\ref PredMap. |
|
| 57 | 57 |
static PredMap *createPredMap(const Digraph &g) |
| 58 | 58 |
{
|
| 59 | 59 |
return new PredMap(g); |
| 60 | 60 |
} |
| 61 | 61 |
|
| 62 | 62 |
///The type of the map that indicates which nodes are processed. |
| 63 | 63 |
|
| 64 | 64 |
///The type of the map that indicates which nodes are processed. |
| 65 | 65 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 66 | 66 |
typedef NullMap<typename Digraph::Node,bool> ProcessedMap; |
| 67 |
///Instantiates a ProcessedMap. |
|
| 67 |
///Instantiates a \c ProcessedMap. |
|
| 68 | 68 |
|
| 69 |
///This function instantiates a ProcessedMap. |
|
| 69 |
///This function instantiates a \ref ProcessedMap. |
|
| 70 | 70 |
///\param g is the digraph, to which |
| 71 |
///we would like to define the ProcessedMap |
|
| 71 |
///we would like to define the \ref ProcessedMap. |
|
| 72 | 72 |
#ifdef DOXYGEN |
| 73 | 73 |
static ProcessedMap *createProcessedMap(const Digraph &g) |
| 74 | 74 |
#else |
| 75 | 75 |
static ProcessedMap *createProcessedMap(const Digraph &) |
| 76 | 76 |
#endif |
| 77 | 77 |
{
|
| 78 | 78 |
return new ProcessedMap(); |
| 79 | 79 |
} |
| 80 | 80 |
|
| 81 | 81 |
///The type of the map that indicates which nodes are reached. |
| 82 | 82 |
|
| 83 | 83 |
///The type of the map that indicates which nodes are reached. |
| 84 | 84 |
///It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 85 | 85 |
typedef typename Digraph::template NodeMap<bool> ReachedMap; |
| 86 |
///Instantiates a ReachedMap. |
|
| 86 |
///Instantiates a \c ReachedMap. |
|
| 87 | 87 |
|
| 88 |
///This function instantiates a ReachedMap. |
|
| 88 |
///This function instantiates a \ref ReachedMap. |
|
| 89 | 89 |
///\param g is the digraph, to which |
| 90 |
///we would like to define the ReachedMap. |
|
| 90 |
///we would like to define the \ref ReachedMap. |
|
| 91 | 91 |
static ReachedMap *createReachedMap(const Digraph &g) |
| 92 | 92 |
{
|
| 93 | 93 |
return new ReachedMap(g); |
| 94 | 94 |
} |
| 95 | 95 |
|
| 96 | 96 |
///The type of the map that stores the distances of the nodes. |
| 97 | 97 |
|
| 98 | 98 |
///The type of the map that stores the distances of the nodes. |
| 99 | 99 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 100 | 100 |
typedef typename Digraph::template NodeMap<int> DistMap; |
| 101 |
///Instantiates a DistMap. |
|
| 101 |
///Instantiates a \c DistMap. |
|
| 102 | 102 |
|
| 103 |
///This function instantiates a DistMap. |
|
| 103 |
///This function instantiates a \ref DistMap. |
|
| 104 | 104 |
///\param g is the digraph, to which we would like to define the |
| 105 |
///DistMap. |
|
| 105 |
///\ref DistMap. |
|
| 106 | 106 |
static DistMap *createDistMap(const Digraph &g) |
| 107 | 107 |
{
|
| 108 | 108 |
return new DistMap(g); |
| 109 | 109 |
} |
| 110 | 110 |
}; |
| 111 | 111 |
|
| 112 | 112 |
///%DFS algorithm class. |
| 113 | 113 |
|
| 114 | 114 |
///\ingroup search |
| 115 | 115 |
///This class provides an efficient implementation of the %DFS algorithm. |
| 116 | 116 |
/// |
| 117 | 117 |
///There is also a \ref dfs() "function-type interface" for the DFS |
| ... | ... |
@@ -211,106 +211,106 @@ |
| 211 | 211 |
///@{
|
| 212 | 212 |
|
| 213 | 213 |
template <class T> |
| 214 | 214 |
struct SetPredMapTraits : public Traits {
|
| 215 | 215 |
typedef T PredMap; |
| 216 | 216 |
static PredMap *createPredMap(const Digraph &) |
| 217 | 217 |
{
|
| 218 | 218 |
LEMON_ASSERT(false, "PredMap is not initialized"); |
| 219 | 219 |
return 0; // ignore warnings |
| 220 | 220 |
} |
| 221 | 221 |
}; |
| 222 | 222 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 223 |
///PredMap type. |
|
| 223 |
///\c PredMap type. |
|
| 224 | 224 |
/// |
| 225 | 225 |
///\ref named-templ-param "Named parameter" for setting |
| 226 |
///PredMap type. |
|
| 226 |
///\c PredMap type. |
|
| 227 | 227 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 228 | 228 |
template <class T> |
| 229 | 229 |
struct SetPredMap : public Dfs<Digraph, SetPredMapTraits<T> > {
|
| 230 | 230 |
typedef Dfs<Digraph, SetPredMapTraits<T> > Create; |
| 231 | 231 |
}; |
| 232 | 232 |
|
| 233 | 233 |
template <class T> |
| 234 | 234 |
struct SetDistMapTraits : public Traits {
|
| 235 | 235 |
typedef T DistMap; |
| 236 | 236 |
static DistMap *createDistMap(const Digraph &) |
| 237 | 237 |
{
|
| 238 | 238 |
LEMON_ASSERT(false, "DistMap is not initialized"); |
| 239 | 239 |
return 0; // ignore warnings |
| 240 | 240 |
} |
| 241 | 241 |
}; |
| 242 | 242 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 243 |
///DistMap type. |
|
| 243 |
///\c DistMap type. |
|
| 244 | 244 |
/// |
| 245 | 245 |
///\ref named-templ-param "Named parameter" for setting |
| 246 |
///DistMap type. |
|
| 246 |
///\c DistMap type. |
|
| 247 | 247 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 248 | 248 |
template <class T> |
| 249 | 249 |
struct SetDistMap : public Dfs< Digraph, SetDistMapTraits<T> > {
|
| 250 | 250 |
typedef Dfs<Digraph, SetDistMapTraits<T> > Create; |
| 251 | 251 |
}; |
| 252 | 252 |
|
| 253 | 253 |
template <class T> |
| 254 | 254 |
struct SetReachedMapTraits : public Traits {
|
| 255 | 255 |
typedef T ReachedMap; |
| 256 | 256 |
static ReachedMap *createReachedMap(const Digraph &) |
| 257 | 257 |
{
|
| 258 | 258 |
LEMON_ASSERT(false, "ReachedMap is not initialized"); |
| 259 | 259 |
return 0; // ignore warnings |
| 260 | 260 |
} |
| 261 | 261 |
}; |
| 262 | 262 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 263 |
///ReachedMap type. |
|
| 263 |
///\c ReachedMap type. |
|
| 264 | 264 |
/// |
| 265 | 265 |
///\ref named-templ-param "Named parameter" for setting |
| 266 |
///ReachedMap type. |
|
| 266 |
///\c ReachedMap type. |
|
| 267 | 267 |
///It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 268 | 268 |
template <class T> |
| 269 | 269 |
struct SetReachedMap : public Dfs< Digraph, SetReachedMapTraits<T> > {
|
| 270 | 270 |
typedef Dfs< Digraph, SetReachedMapTraits<T> > Create; |
| 271 | 271 |
}; |
| 272 | 272 |
|
| 273 | 273 |
template <class T> |
| 274 | 274 |
struct SetProcessedMapTraits : public Traits {
|
| 275 | 275 |
typedef T ProcessedMap; |
| 276 | 276 |
static ProcessedMap *createProcessedMap(const Digraph &) |
| 277 | 277 |
{
|
| 278 | 278 |
LEMON_ASSERT(false, "ProcessedMap is not initialized"); |
| 279 | 279 |
return 0; // ignore warnings |
| 280 | 280 |
} |
| 281 | 281 |
}; |
| 282 | 282 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 283 |
///ProcessedMap type. |
|
| 283 |
///\c ProcessedMap type. |
|
| 284 | 284 |
/// |
| 285 | 285 |
///\ref named-templ-param "Named parameter" for setting |
| 286 |
///ProcessedMap type. |
|
| 286 |
///\c ProcessedMap type. |
|
| 287 | 287 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 288 | 288 |
template <class T> |
| 289 | 289 |
struct SetProcessedMap : public Dfs< Digraph, SetProcessedMapTraits<T> > {
|
| 290 | 290 |
typedef Dfs< Digraph, SetProcessedMapTraits<T> > Create; |
| 291 | 291 |
}; |
| 292 | 292 |
|
| 293 | 293 |
struct SetStandardProcessedMapTraits : public Traits {
|
| 294 | 294 |
typedef typename Digraph::template NodeMap<bool> ProcessedMap; |
| 295 | 295 |
static ProcessedMap *createProcessedMap(const Digraph &g) |
| 296 | 296 |
{
|
| 297 | 297 |
return new ProcessedMap(g); |
| 298 | 298 |
} |
| 299 | 299 |
}; |
| 300 | 300 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 301 |
///ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 301 |
///\c ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 302 | 302 |
/// |
| 303 | 303 |
///\ref named-templ-param "Named parameter" for setting |
| 304 |
///ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 304 |
///\c ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 305 | 305 |
///If you don't set it explicitly, it will be automatically allocated. |
| 306 | 306 |
struct SetStandardProcessedMap : |
| 307 | 307 |
public Dfs< Digraph, SetStandardProcessedMapTraits > {
|
| 308 | 308 |
typedef Dfs< Digraph, SetStandardProcessedMapTraits > Create; |
| 309 | 309 |
}; |
| 310 | 310 |
|
| 311 | 311 |
///@} |
| 312 | 312 |
|
| 313 | 313 |
public: |
| 314 | 314 |
|
| 315 | 315 |
///Constructor. |
| 316 | 316 |
|
| ... | ... |
@@ -1117,27 +1117,27 @@ |
| 1117 | 1117 |
template<class GR> |
| 1118 | 1118 |
DfsWizard<DfsWizardBase<GR> > |
| 1119 | 1119 |
dfs(const GR &digraph) |
| 1120 | 1120 |
{
|
| 1121 | 1121 |
return DfsWizard<DfsWizardBase<GR> >(digraph); |
| 1122 | 1122 |
} |
| 1123 | 1123 |
|
| 1124 | 1124 |
#ifdef DOXYGEN |
| 1125 | 1125 |
/// \brief Visitor class for DFS. |
| 1126 | 1126 |
/// |
| 1127 | 1127 |
/// This class defines the interface of the DfsVisit events, and |
| 1128 | 1128 |
/// it could be the base of a real visitor class. |
| 1129 |
template <typename |
|
| 1129 |
template <typename GR> |
|
| 1130 | 1130 |
struct DfsVisitor {
|
| 1131 |
typedef |
|
| 1131 |
typedef GR Digraph; |
|
| 1132 | 1132 |
typedef typename Digraph::Arc Arc; |
| 1133 | 1133 |
typedef typename Digraph::Node Node; |
| 1134 | 1134 |
/// \brief Called for the source node of the DFS. |
| 1135 | 1135 |
/// |
| 1136 | 1136 |
/// This function is called for the source node of the DFS. |
| 1137 | 1137 |
void start(const Node& node) {}
|
| 1138 | 1138 |
/// \brief Called when the source node is leaved. |
| 1139 | 1139 |
/// |
| 1140 | 1140 |
/// This function is called when the source node is leaved. |
| 1141 | 1141 |
void stop(const Node& node) {}
|
| 1142 | 1142 |
/// \brief Called when a node is reached first time. |
| 1143 | 1143 |
/// |
| ... | ... |
@@ -1155,27 +1155,27 @@ |
| 1155 | 1155 |
/// already discovered. |
| 1156 | 1156 |
void examine(const Arc& arc) {}
|
| 1157 | 1157 |
/// \brief Called when the DFS steps back from a node. |
| 1158 | 1158 |
/// |
| 1159 | 1159 |
/// This function is called when the DFS steps back from a node. |
| 1160 | 1160 |
void leave(const Node& node) {}
|
| 1161 | 1161 |
/// \brief Called when the DFS steps back on an arc. |
| 1162 | 1162 |
/// |
| 1163 | 1163 |
/// This function is called when the DFS steps back on an arc. |
| 1164 | 1164 |
void backtrack(const Arc& arc) {}
|
| 1165 | 1165 |
}; |
| 1166 | 1166 |
#else |
| 1167 |
template <typename |
|
| 1167 |
template <typename GR> |
|
| 1168 | 1168 |
struct DfsVisitor {
|
| 1169 |
typedef |
|
| 1169 |
typedef GR Digraph; |
|
| 1170 | 1170 |
typedef typename Digraph::Arc Arc; |
| 1171 | 1171 |
typedef typename Digraph::Node Node; |
| 1172 | 1172 |
void start(const Node&) {}
|
| 1173 | 1173 |
void stop(const Node&) {}
|
| 1174 | 1174 |
void reach(const Node&) {}
|
| 1175 | 1175 |
void discover(const Arc&) {}
|
| 1176 | 1176 |
void examine(const Arc&) {}
|
| 1177 | 1177 |
void leave(const Node&) {}
|
| 1178 | 1178 |
void backtrack(const Arc&) {}
|
| 1179 | 1179 |
|
| 1180 | 1180 |
template <typename _Visitor> |
| 1181 | 1181 |
struct Constraints {
|
| ... | ... |
@@ -1190,94 +1190,94 @@ |
| 1190 | 1190 |
visitor.leave(node); |
| 1191 | 1191 |
visitor.backtrack(arc); |
| 1192 | 1192 |
} |
| 1193 | 1193 |
_Visitor& visitor; |
| 1194 | 1194 |
}; |
| 1195 | 1195 |
}; |
| 1196 | 1196 |
#endif |
| 1197 | 1197 |
|
| 1198 | 1198 |
/// \brief Default traits class of DfsVisit class. |
| 1199 | 1199 |
/// |
| 1200 | 1200 |
/// Default traits class of DfsVisit class. |
| 1201 | 1201 |
/// \tparam _Digraph The type of the digraph the algorithm runs on. |
| 1202 |
template<class |
|
| 1202 |
template<class GR> |
|
| 1203 | 1203 |
struct DfsVisitDefaultTraits {
|
| 1204 | 1204 |
|
| 1205 | 1205 |
/// \brief The type of the digraph the algorithm runs on. |
| 1206 |
typedef |
|
| 1206 |
typedef GR Digraph; |
|
| 1207 | 1207 |
|
| 1208 | 1208 |
/// \brief The type of the map that indicates which nodes are reached. |
| 1209 | 1209 |
/// |
| 1210 | 1210 |
/// The type of the map that indicates which nodes are reached. |
| 1211 | 1211 |
/// It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 1212 | 1212 |
typedef typename Digraph::template NodeMap<bool> ReachedMap; |
| 1213 | 1213 |
|
| 1214 | 1214 |
/// \brief Instantiates a ReachedMap. |
| 1215 | 1215 |
/// |
| 1216 | 1216 |
/// This function instantiates a ReachedMap. |
| 1217 | 1217 |
/// \param digraph is the digraph, to which |
| 1218 | 1218 |
/// we would like to define the ReachedMap. |
| 1219 | 1219 |
static ReachedMap *createReachedMap(const Digraph &digraph) {
|
| 1220 | 1220 |
return new ReachedMap(digraph); |
| 1221 | 1221 |
} |
| 1222 | 1222 |
|
| 1223 | 1223 |
}; |
| 1224 | 1224 |
|
| 1225 | 1225 |
/// \ingroup search |
| 1226 | 1226 |
/// |
| 1227 |
/// \brief |
|
| 1227 |
/// \brief DFS algorithm class with visitor interface. |
|
| 1228 | 1228 |
/// |
| 1229 |
/// This class provides an efficient implementation of the |
|
| 1229 |
/// This class provides an efficient implementation of the DFS algorithm |
|
| 1230 | 1230 |
/// with visitor interface. |
| 1231 | 1231 |
/// |
| 1232 |
/// The |
|
| 1232 |
/// The DfsVisit class provides an alternative interface to the Dfs |
|
| 1233 | 1233 |
/// class. It works with callback mechanism, the DfsVisit object calls |
| 1234 | 1234 |
/// the member functions of the \c Visitor class on every DFS event. |
| 1235 | 1235 |
/// |
| 1236 | 1236 |
/// This interface of the DFS algorithm should be used in special cases |
| 1237 | 1237 |
/// when extra actions have to be performed in connection with certain |
| 1238 | 1238 |
/// events of the DFS algorithm. Otherwise consider to use Dfs or dfs() |
| 1239 | 1239 |
/// instead. |
| 1240 | 1240 |
/// |
| 1241 |
/// \tparam _Digraph The type of the digraph the algorithm runs on. |
|
| 1242 |
/// The default value is |
|
| 1243 |
/// \ref ListDigraph. The value of _Digraph is not used directly by |
|
| 1244 |
/// \ref DfsVisit, it is only passed to \ref DfsVisitDefaultTraits. |
|
| 1245 |
/// \tparam _Visitor The Visitor type that is used by the algorithm. |
|
| 1246 |
/// \ref DfsVisitor "DfsVisitor<_Digraph>" is an empty visitor, which |
|
| 1241 |
/// \tparam GR The type of the digraph the algorithm runs on. |
|
| 1242 |
/// The default type is \ref ListDigraph. |
|
| 1243 |
/// The value of GR is not used directly by \ref DfsVisit, |
|
| 1244 |
/// it is only passed to \ref DfsVisitDefaultTraits. |
|
| 1245 |
/// \tparam VS The Visitor type that is used by the algorithm. |
|
| 1246 |
/// \ref DfsVisitor "DfsVisitor<GR>" is an empty visitor, which |
|
| 1247 | 1247 |
/// does not observe the DFS events. If you want to observe the DFS |
| 1248 | 1248 |
/// events, you should implement your own visitor class. |
| 1249 |
/// \tparam |
|
| 1249 |
/// \tparam TR Traits class to set various data types used by the |
|
| 1250 | 1250 |
/// algorithm. The default traits class is |
| 1251 |
/// \ref DfsVisitDefaultTraits "DfsVisitDefaultTraits< |
|
| 1251 |
/// \ref DfsVisitDefaultTraits "DfsVisitDefaultTraits<GR>". |
|
| 1252 | 1252 |
/// See \ref DfsVisitDefaultTraits for the documentation of |
| 1253 | 1253 |
/// a DFS visit traits class. |
| 1254 | 1254 |
#ifdef DOXYGEN |
| 1255 |
template <typename |
|
| 1255 |
template <typename GR, typename VS, typename TR> |
|
| 1256 | 1256 |
#else |
| 1257 |
template <typename _Digraph = ListDigraph, |
|
| 1258 |
typename _Visitor = DfsVisitor<_Digraph>, |
|
| 1259 |
|
|
| 1257 |
template <typename GR = ListDigraph, |
|
| 1258 |
typename VS = DfsVisitor<GR>, |
|
| 1259 |
typename TR = DfsVisitDefaultTraits<GR> > |
|
| 1260 | 1260 |
#endif |
| 1261 | 1261 |
class DfsVisit {
|
| 1262 | 1262 |
public: |
| 1263 | 1263 |
|
| 1264 | 1264 |
///The traits class. |
| 1265 |
typedef |
|
| 1265 |
typedef TR Traits; |
|
| 1266 | 1266 |
|
| 1267 | 1267 |
///The type of the digraph the algorithm runs on. |
| 1268 | 1268 |
typedef typename Traits::Digraph Digraph; |
| 1269 | 1269 |
|
| 1270 | 1270 |
///The visitor type used by the algorithm. |
| 1271 |
typedef |
|
| 1271 |
typedef VS Visitor; |
|
| 1272 | 1272 |
|
| 1273 | 1273 |
///The type of the map that indicates which nodes are reached. |
| 1274 | 1274 |
typedef typename Traits::ReachedMap ReachedMap; |
| 1275 | 1275 |
|
| 1276 | 1276 |
private: |
| 1277 | 1277 |
|
| 1278 | 1278 |
typedef typename Digraph::Node Node; |
| 1279 | 1279 |
typedef typename Digraph::NodeIt NodeIt; |
| 1280 | 1280 |
typedef typename Digraph::Arc Arc; |
| 1281 | 1281 |
typedef typename Digraph::OutArcIt OutArcIt; |
| 1282 | 1282 |
|
| 1283 | 1283 |
//Pointer to the underlying digraph. |
| ... | ... |
@@ -64,107 +64,107 @@ |
| 64 | 64 |
{
|
| 65 | 65 |
///The type of the digraph the algorithm runs on. |
| 66 | 66 |
typedef GR Digraph; |
| 67 | 67 |
|
| 68 | 68 |
///The type of the map that stores the arc lengths. |
| 69 | 69 |
|
| 70 | 70 |
///The type of the map that stores the arc lengths. |
| 71 | 71 |
///It must meet the \ref concepts::ReadMap "ReadMap" concept. |
| 72 | 72 |
typedef LM LengthMap; |
| 73 | 73 |
///The type of the length of the arcs. |
| 74 | 74 |
typedef typename LM::Value Value; |
| 75 | 75 |
|
| 76 |
/// Operation traits for Dijkstra algorithm. |
|
| 76 |
/// Operation traits for %Dijkstra algorithm. |
|
| 77 | 77 |
|
| 78 | 78 |
/// This class defines the operations that are used in the algorithm. |
| 79 | 79 |
/// \see DijkstraDefaultOperationTraits |
| 80 | 80 |
typedef DijkstraDefaultOperationTraits<Value> OperationTraits; |
| 81 | 81 |
|
| 82 | 82 |
/// The cross reference type used by the heap. |
| 83 | 83 |
|
| 84 | 84 |
/// The cross reference type used by the heap. |
| 85 | 85 |
/// Usually it is \c Digraph::NodeMap<int>. |
| 86 | 86 |
typedef typename Digraph::template NodeMap<int> HeapCrossRef; |
| 87 |
///Instantiates a \ |
|
| 87 |
///Instantiates a \c HeapCrossRef. |
|
| 88 | 88 |
|
| 89 | 89 |
///This function instantiates a \ref HeapCrossRef. |
| 90 | 90 |
/// \param g is the digraph, to which we would like to define the |
| 91 | 91 |
/// \ref HeapCrossRef. |
| 92 | 92 |
static HeapCrossRef *createHeapCrossRef(const Digraph &g) |
| 93 | 93 |
{
|
| 94 | 94 |
return new HeapCrossRef(g); |
| 95 | 95 |
} |
| 96 | 96 |
|
| 97 |
///The heap type used by the Dijkstra algorithm. |
|
| 97 |
///The heap type used by the %Dijkstra algorithm. |
|
| 98 | 98 |
|
| 99 | 99 |
///The heap type used by the Dijkstra algorithm. |
| 100 | 100 |
/// |
| 101 | 101 |
///\sa BinHeap |
| 102 | 102 |
///\sa Dijkstra |
| 103 | 103 |
typedef BinHeap<typename LM::Value, HeapCrossRef, std::less<Value> > Heap; |
| 104 |
///Instantiates a \ |
|
| 104 |
///Instantiates a \c Heap. |
|
| 105 | 105 |
|
| 106 | 106 |
///This function instantiates a \ref Heap. |
| 107 | 107 |
static Heap *createHeap(HeapCrossRef& r) |
| 108 | 108 |
{
|
| 109 | 109 |
return new Heap(r); |
| 110 | 110 |
} |
| 111 | 111 |
|
| 112 | 112 |
///\brief The type of the map that stores the predecessor |
| 113 | 113 |
///arcs of the shortest paths. |
| 114 | 114 |
/// |
| 115 | 115 |
///The type of the map that stores the predecessor |
| 116 | 116 |
///arcs of the shortest paths. |
| 117 | 117 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 118 | 118 |
typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; |
| 119 |
///Instantiates a PredMap. |
|
| 119 |
///Instantiates a \c PredMap. |
|
| 120 | 120 |
|
| 121 |
///This function instantiates a PredMap. |
|
| 121 |
///This function instantiates a \ref PredMap. |
|
| 122 | 122 |
///\param g is the digraph, to which we would like to define the |
| 123 |
///PredMap. |
|
| 123 |
///\ref PredMap. |
|
| 124 | 124 |
static PredMap *createPredMap(const Digraph &g) |
| 125 | 125 |
{
|
| 126 | 126 |
return new PredMap(g); |
| 127 | 127 |
} |
| 128 | 128 |
|
| 129 | 129 |
///The type of the map that indicates which nodes are processed. |
| 130 | 130 |
|
| 131 | 131 |
///The type of the map that indicates which nodes are processed. |
| 132 | 132 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 133 | 133 |
///By default it is a NullMap. |
| 134 | 134 |
typedef NullMap<typename Digraph::Node,bool> ProcessedMap; |
| 135 |
///Instantiates a ProcessedMap. |
|
| 135 |
///Instantiates a \c ProcessedMap. |
|
| 136 | 136 |
|
| 137 |
///This function instantiates a ProcessedMap. |
|
| 137 |
///This function instantiates a \ref ProcessedMap. |
|
| 138 | 138 |
///\param g is the digraph, to which |
| 139 |
///we would like to define the ProcessedMap |
|
| 139 |
///we would like to define the \ref ProcessedMap. |
|
| 140 | 140 |
#ifdef DOXYGEN |
| 141 | 141 |
static ProcessedMap *createProcessedMap(const Digraph &g) |
| 142 | 142 |
#else |
| 143 | 143 |
static ProcessedMap *createProcessedMap(const Digraph &) |
| 144 | 144 |
#endif |
| 145 | 145 |
{
|
| 146 | 146 |
return new ProcessedMap(); |
| 147 | 147 |
} |
| 148 | 148 |
|
| 149 | 149 |
///The type of the map that stores the distances of the nodes. |
| 150 | 150 |
|
| 151 | 151 |
///The type of the map that stores the distances of the nodes. |
| 152 | 152 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 153 | 153 |
typedef typename Digraph::template NodeMap<typename LM::Value> DistMap; |
| 154 |
///Instantiates a DistMap. |
|
| 154 |
///Instantiates a \c DistMap. |
|
| 155 | 155 |
|
| 156 |
///This function instantiates a DistMap. |
|
| 156 |
///This function instantiates a \ref DistMap. |
|
| 157 | 157 |
///\param g is the digraph, to which we would like to define |
| 158 |
///the DistMap |
|
| 158 |
///the \ref DistMap. |
|
| 159 | 159 |
static DistMap *createDistMap(const Digraph &g) |
| 160 | 160 |
{
|
| 161 | 161 |
return new DistMap(g); |
| 162 | 162 |
} |
| 163 | 163 |
}; |
| 164 | 164 |
|
| 165 | 165 |
///%Dijkstra algorithm class. |
| 166 | 166 |
|
| 167 | 167 |
/// \ingroup shortest_path |
| 168 | 168 |
///This class provides an efficient implementation of the %Dijkstra algorithm. |
| 169 | 169 |
/// |
| 170 | 170 |
///The arc lengths are passed to the algorithm using a |
| ... | ... |
@@ -207,41 +207,42 @@ |
| 207 | 207 |
///shortest paths. |
| 208 | 208 |
typedef typename TR::PredMap PredMap; |
| 209 | 209 |
///The type of the map that stores the distances of the nodes. |
| 210 | 210 |
typedef typename TR::DistMap DistMap; |
| 211 | 211 |
///The type of the map that indicates which nodes are processed. |
| 212 | 212 |
typedef typename TR::ProcessedMap ProcessedMap; |
| 213 | 213 |
///The type of the paths. |
| 214 | 214 |
typedef PredMapPath<Digraph, PredMap> Path; |
| 215 | 215 |
///The cross reference type used for the current heap. |
| 216 | 216 |
typedef typename TR::HeapCrossRef HeapCrossRef; |
| 217 | 217 |
///The heap type used by the algorithm. |
| 218 | 218 |
typedef typename TR::Heap Heap; |
| 219 |
///The operation traits class |
|
| 219 |
///\brief The \ref DijkstraDefaultOperationTraits "operation traits class" |
|
| 220 |
///of the algorithm. |
|
| 220 | 221 |
typedef typename TR::OperationTraits OperationTraits; |
| 221 | 222 |
|
| 222 | 223 |
///The \ref DijkstraDefaultTraits "traits class" of the algorithm. |
| 223 | 224 |
typedef TR Traits; |
| 224 | 225 |
|
| 225 | 226 |
private: |
| 226 | 227 |
|
| 227 | 228 |
typedef typename Digraph::Node Node; |
| 228 | 229 |
typedef typename Digraph::NodeIt NodeIt; |
| 229 | 230 |
typedef typename Digraph::Arc Arc; |
| 230 | 231 |
typedef typename Digraph::OutArcIt OutArcIt; |
| 231 | 232 |
|
| 232 | 233 |
//Pointer to the underlying digraph. |
| 233 | 234 |
const Digraph *G; |
| 234 | 235 |
//Pointer to the length map. |
| 235 |
const LengthMap * |
|
| 236 |
const LengthMap *_length; |
|
| 236 | 237 |
//Pointer to the map of predecessors arcs. |
| 237 | 238 |
PredMap *_pred; |
| 238 | 239 |
//Indicates if _pred is locally allocated (true) or not. |
| 239 | 240 |
bool local_pred; |
| 240 | 241 |
//Pointer to the map of distances. |
| 241 | 242 |
DistMap *_dist; |
| 242 | 243 |
//Indicates if _dist is locally allocated (true) or not. |
| 243 | 244 |
bool local_dist; |
| 244 | 245 |
//Pointer to the map of processed status of the nodes. |
| 245 | 246 |
ProcessedMap *_processed; |
| 246 | 247 |
//Indicates if _processed is locally allocated (true) or not. |
| 247 | 248 |
bool local_processed; |
| ... | ... |
@@ -288,89 +289,89 @@ |
| 288 | 289 |
///@{
|
| 289 | 290 |
|
| 290 | 291 |
template <class T> |
| 291 | 292 |
struct SetPredMapTraits : public Traits {
|
| 292 | 293 |
typedef T PredMap; |
| 293 | 294 |
static PredMap *createPredMap(const Digraph &) |
| 294 | 295 |
{
|
| 295 | 296 |
LEMON_ASSERT(false, "PredMap is not initialized"); |
| 296 | 297 |
return 0; // ignore warnings |
| 297 | 298 |
} |
| 298 | 299 |
}; |
| 299 | 300 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 300 |
///PredMap type. |
|
| 301 |
///\c PredMap type. |
|
| 301 | 302 |
/// |
| 302 | 303 |
///\ref named-templ-param "Named parameter" for setting |
| 303 |
///PredMap type. |
|
| 304 |
///\c PredMap type. |
|
| 304 | 305 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 305 | 306 |
template <class T> |
| 306 | 307 |
struct SetPredMap |
| 307 | 308 |
: public Dijkstra< Digraph, LengthMap, SetPredMapTraits<T> > {
|
| 308 | 309 |
typedef Dijkstra< Digraph, LengthMap, SetPredMapTraits<T> > Create; |
| 309 | 310 |
}; |
| 310 | 311 |
|
| 311 | 312 |
template <class T> |
| 312 | 313 |
struct SetDistMapTraits : public Traits {
|
| 313 | 314 |
typedef T DistMap; |
| 314 | 315 |
static DistMap *createDistMap(const Digraph &) |
| 315 | 316 |
{
|
| 316 | 317 |
LEMON_ASSERT(false, "DistMap is not initialized"); |
| 317 | 318 |
return 0; // ignore warnings |
| 318 | 319 |
} |
| 319 | 320 |
}; |
| 320 | 321 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 321 |
///DistMap type. |
|
| 322 |
///\c DistMap type. |
|
| 322 | 323 |
/// |
| 323 | 324 |
///\ref named-templ-param "Named parameter" for setting |
| 324 |
///DistMap type. |
|
| 325 |
///\c DistMap type. |
|
| 325 | 326 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 326 | 327 |
template <class T> |
| 327 | 328 |
struct SetDistMap |
| 328 | 329 |
: public Dijkstra< Digraph, LengthMap, SetDistMapTraits<T> > {
|
| 329 | 330 |
typedef Dijkstra< Digraph, LengthMap, SetDistMapTraits<T> > Create; |
| 330 | 331 |
}; |
| 331 | 332 |
|
| 332 | 333 |
template <class T> |
| 333 | 334 |
struct SetProcessedMapTraits : public Traits {
|
| 334 | 335 |
typedef T ProcessedMap; |
| 335 | 336 |
static ProcessedMap *createProcessedMap(const Digraph &) |
| 336 | 337 |
{
|
| 337 | 338 |
LEMON_ASSERT(false, "ProcessedMap is not initialized"); |
| 338 | 339 |
return 0; // ignore warnings |
| 339 | 340 |
} |
| 340 | 341 |
}; |
| 341 | 342 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 342 |
///ProcessedMap type. |
|
| 343 |
///\c ProcessedMap type. |
|
| 343 | 344 |
/// |
| 344 | 345 |
///\ref named-templ-param "Named parameter" for setting |
| 345 |
///ProcessedMap type. |
|
| 346 |
///\c ProcessedMap type. |
|
| 346 | 347 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 347 | 348 |
template <class T> |
| 348 | 349 |
struct SetProcessedMap |
| 349 | 350 |
: public Dijkstra< Digraph, LengthMap, SetProcessedMapTraits<T> > {
|
| 350 | 351 |
typedef Dijkstra< Digraph, LengthMap, SetProcessedMapTraits<T> > Create; |
| 351 | 352 |
}; |
| 352 | 353 |
|
| 353 | 354 |
struct SetStandardProcessedMapTraits : public Traits {
|
| 354 | 355 |
typedef typename Digraph::template NodeMap<bool> ProcessedMap; |
| 355 | 356 |
static ProcessedMap *createProcessedMap(const Digraph &g) |
| 356 | 357 |
{
|
| 357 | 358 |
return new ProcessedMap(g); |
| 358 | 359 |
} |
| 359 | 360 |
}; |
| 360 | 361 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 361 |
///ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 362 |
///\c ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 362 | 363 |
/// |
| 363 | 364 |
///\ref named-templ-param "Named parameter" for setting |
| 364 |
///ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 365 |
///\c ProcessedMap type to be <tt>Digraph::NodeMap<bool></tt>. |
|
| 365 | 366 |
///If you don't set it explicitly, it will be automatically allocated. |
| 366 | 367 |
struct SetStandardProcessedMap |
| 367 | 368 |
: public Dijkstra< Digraph, LengthMap, SetStandardProcessedMapTraits > {
|
| 368 | 369 |
typedef Dijkstra< Digraph, LengthMap, SetStandardProcessedMapTraits > |
| 369 | 370 |
Create; |
| 370 | 371 |
}; |
| 371 | 372 |
|
| 372 | 373 |
template <class H, class CR> |
| 373 | 374 |
struct SetHeapTraits : public Traits {
|
| 374 | 375 |
typedef CR HeapCrossRef; |
| 375 | 376 |
typedef H Heap; |
| 376 | 377 |
static HeapCrossRef *createHeapCrossRef(const Digraph &) {
|
| ... | ... |
@@ -430,71 +431,71 @@ |
| 430 | 431 |
Create; |
| 431 | 432 |
}; |
| 432 | 433 |
|
| 433 | 434 |
template <class T> |
| 434 | 435 |
struct SetOperationTraitsTraits : public Traits {
|
| 435 | 436 |
typedef T OperationTraits; |
| 436 | 437 |
}; |
| 437 | 438 |
|
| 438 | 439 |
/// \brief \ref named-templ-param "Named parameter" for setting |
| 439 | 440 |
///\c OperationTraits type |
| 440 | 441 |
/// |
| 441 | 442 |
///\ref named-templ-param "Named parameter" for setting |
| 442 |
///\ |
|
| 443 |
///\c OperationTraits type. |
|
| 443 | 444 |
template <class T> |
| 444 | 445 |
struct SetOperationTraits |
| 445 | 446 |
: public Dijkstra<Digraph, LengthMap, SetOperationTraitsTraits<T> > {
|
| 446 | 447 |
typedef Dijkstra<Digraph, LengthMap, SetOperationTraitsTraits<T> > |
| 447 | 448 |
Create; |
| 448 | 449 |
}; |
| 449 | 450 |
|
| 450 | 451 |
///@} |
| 451 | 452 |
|
| 452 | 453 |
protected: |
| 453 | 454 |
|
| 454 | 455 |
Dijkstra() {}
|
| 455 | 456 |
|
| 456 | 457 |
public: |
| 457 | 458 |
|
| 458 | 459 |
///Constructor. |
| 459 | 460 |
|
| 460 | 461 |
///Constructor. |
| 461 |
///\param _g The digraph the algorithm runs on. |
|
| 462 |
///\param _length The length map used by the algorithm. |
|
| 463 |
Dijkstra(const Digraph& _g, const LengthMap& _length) : |
|
| 464 |
G(&_g), length(&_length), |
|
| 462 |
///\param g The digraph the algorithm runs on. |
|
| 463 |
///\param length The length map used by the algorithm. |
|
| 464 |
Dijkstra(const Digraph& g, const LengthMap& length) : |
|
| 465 |
G(&g), _length(&length), |
|
| 465 | 466 |
_pred(NULL), local_pred(false), |
| 466 | 467 |
_dist(NULL), local_dist(false), |
| 467 | 468 |
_processed(NULL), local_processed(false), |
| 468 | 469 |
_heap_cross_ref(NULL), local_heap_cross_ref(false), |
| 469 | 470 |
_heap(NULL), local_heap(false) |
| 470 | 471 |
{ }
|
| 471 | 472 |
|
| 472 | 473 |
///Destructor. |
| 473 | 474 |
~Dijkstra() |
| 474 | 475 |
{
|
| 475 | 476 |
if(local_pred) delete _pred; |
| 476 | 477 |
if(local_dist) delete _dist; |
| 477 | 478 |
if(local_processed) delete _processed; |
| 478 | 479 |
if(local_heap_cross_ref) delete _heap_cross_ref; |
| 479 | 480 |
if(local_heap) delete _heap; |
| 480 | 481 |
} |
| 481 | 482 |
|
| 482 | 483 |
///Sets the length map. |
| 483 | 484 |
|
| 484 | 485 |
///Sets the length map. |
| 485 | 486 |
///\return <tt> (*this) </tt> |
| 486 | 487 |
Dijkstra &lengthMap(const LengthMap &m) |
| 487 | 488 |
{
|
| 488 |
|
|
| 489 |
_length = &m; |
|
| 489 | 490 |
return *this; |
| 490 | 491 |
} |
| 491 | 492 |
|
| 492 | 493 |
///Sets the map that stores the predecessor arcs. |
| 493 | 494 |
|
| 494 | 495 |
///Sets the map that stores the predecessor arcs. |
| 495 | 496 |
///If you don't use this function before calling \ref run(Node) "run()" |
| 496 | 497 |
///or \ref init(), an instance will be allocated automatically. |
| 497 | 498 |
///The destructor deallocates this automatically allocated map, |
| 498 | 499 |
///of course. |
| 499 | 500 |
///\return <tt> (*this) </tt> |
| 500 | 501 |
Dijkstra &predMap(PredMap &m) |
| ... | ... |
@@ -629,30 +630,30 @@ |
| 629 | 630 |
///\warning The priority heap must not be empty. |
| 630 | 631 |
Node processNextNode() |
| 631 | 632 |
{
|
| 632 | 633 |
Node v=_heap->top(); |
| 633 | 634 |
Value oldvalue=_heap->prio(); |
| 634 | 635 |
_heap->pop(); |
| 635 | 636 |
finalizeNodeData(v,oldvalue); |
| 636 | 637 |
|
| 637 | 638 |
for(OutArcIt e(*G,v); e!=INVALID; ++e) {
|
| 638 | 639 |
Node w=G->target(e); |
| 639 | 640 |
switch(_heap->state(w)) {
|
| 640 | 641 |
case Heap::PRE_HEAP: |
| 641 |
_heap->push(w,OperationTraits::plus(oldvalue, (* |
|
| 642 |
_heap->push(w,OperationTraits::plus(oldvalue, (*_length)[e])); |
|
| 642 | 643 |
_pred->set(w,e); |
| 643 | 644 |
break; |
| 644 | 645 |
case Heap::IN_HEAP: |
| 645 | 646 |
{
|
| 646 |
Value newvalue = OperationTraits::plus(oldvalue, (* |
|
| 647 |
Value newvalue = OperationTraits::plus(oldvalue, (*_length)[e]); |
|
| 647 | 648 |
if ( OperationTraits::less(newvalue, (*_heap)[w]) ) {
|
| 648 | 649 |
_heap->decrease(w, newvalue); |
| 649 | 650 |
_pred->set(w,e); |
| 650 | 651 |
} |
| 651 | 652 |
} |
| 652 | 653 |
break; |
| 653 | 654 |
case Heap::POST_HEAP: |
| 654 | 655 |
break; |
| 655 | 656 |
} |
| 656 | 657 |
} |
| 657 | 658 |
return v; |
| 658 | 659 |
} |
| ... | ... |
@@ -22,37 +22,37 @@ |
| 22 | 22 |
#include <lemon/tolerance.h> |
| 23 | 23 |
#include <lemon/elevator.h> |
| 24 | 24 |
|
| 25 | 25 |
/// \file |
| 26 | 26 |
/// \ingroup max_flow |
| 27 | 27 |
/// \brief Implementation of the preflow algorithm. |
| 28 | 28 |
|
| 29 | 29 |
namespace lemon {
|
| 30 | 30 |
|
| 31 | 31 |
/// \brief Default traits class of Preflow class. |
| 32 | 32 |
/// |
| 33 | 33 |
/// Default traits class of Preflow class. |
| 34 |
/// \tparam _Digraph Digraph type. |
|
| 35 |
/// \tparam _CapacityMap Capacity map type. |
|
| 36 |
|
|
| 34 |
/// \tparam GR Digraph type. |
|
| 35 |
/// \tparam CM Capacity map type. |
|
| 36 |
template <typename GR, typename CM> |
|
| 37 | 37 |
struct PreflowDefaultTraits {
|
| 38 | 38 |
|
| 39 | 39 |
/// \brief The type of the digraph the algorithm runs on. |
| 40 |
typedef |
|
| 40 |
typedef GR Digraph; |
|
| 41 | 41 |
|
| 42 | 42 |
/// \brief The type of the map that stores the arc capacities. |
| 43 | 43 |
/// |
| 44 | 44 |
/// The type of the map that stores the arc capacities. |
| 45 | 45 |
/// It must meet the \ref concepts::ReadMap "ReadMap" concept. |
| 46 |
typedef |
|
| 46 |
typedef CM CapacityMap; |
|
| 47 | 47 |
|
| 48 | 48 |
/// \brief The type of the flow values. |
| 49 | 49 |
typedef typename CapacityMap::Value Value; |
| 50 | 50 |
|
| 51 | 51 |
/// \brief The type of the map that stores the flow values. |
| 52 | 52 |
/// |
| 53 | 53 |
/// The type of the map that stores the flow values. |
| 54 | 54 |
/// It must meet the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
| 55 | 55 |
typedef typename Digraph::template ArcMap<Value> FlowMap; |
| 56 | 56 |
|
| 57 | 57 |
/// \brief Instantiates a FlowMap. |
| 58 | 58 |
/// |
| ... | ... |
@@ -95,39 +95,39 @@ |
| 95 | 95 |
/// |
| 96 | 96 |
/// This class provides an implementation of Goldberg-Tarjan's \e preflow |
| 97 | 97 |
/// \e push-relabel algorithm producing a flow of maximum value in a |
| 98 | 98 |
/// digraph. The preflow algorithms are the fastest known maximum |
| 99 | 99 |
/// flow algorithms. The current implementation use a mixture of the |
| 100 | 100 |
/// \e "highest label" and the \e "bound decrease" heuristics. |
| 101 | 101 |
/// The worst case time complexity of the algorithm is \f$O(n^2\sqrt{e})\f$.
|
| 102 | 102 |
/// |
| 103 | 103 |
/// The algorithm consists of two phases. After the first phase |
| 104 | 104 |
/// the maximum flow value and the minimum cut is obtained. The |
| 105 | 105 |
/// second phase constructs a feasible maximum flow on each arc. |
| 106 | 106 |
/// |
| 107 |
/// \tparam _Digraph The type of the digraph the algorithm runs on. |
|
| 108 |
/// \tparam _CapacityMap The type of the capacity map. The default map |
|
| 109 |
/// type |
|
| 107 |
/// \tparam GR The type of the digraph the algorithm runs on. |
|
| 108 |
/// \tparam CM The type of the capacity map. The default map |
|
| 109 |
/// type is \ref concepts::Digraph::ArcMap "GR::ArcMap<int>". |
|
| 110 | 110 |
#ifdef DOXYGEN |
| 111 |
template <typename |
|
| 111 |
template <typename GR, typename CM, typename TR> |
|
| 112 | 112 |
#else |
| 113 |
template <typename _Digraph, |
|
| 114 |
typename _CapacityMap = typename _Digraph::template ArcMap<int>, |
|
| 115 |
|
|
| 113 |
template <typename GR, |
|
| 114 |
typename CM = typename GR::template ArcMap<int>, |
|
| 115 |
typename TR = PreflowDefaultTraits<GR, CM> > |
|
| 116 | 116 |
#endif |
| 117 | 117 |
class Preflow {
|
| 118 | 118 |
public: |
| 119 | 119 |
|
| 120 | 120 |
///The \ref PreflowDefaultTraits "traits class" of the algorithm. |
| 121 |
typedef |
|
| 121 |
typedef TR Traits; |
|
| 122 | 122 |
///The type of the digraph the algorithm runs on. |
| 123 | 123 |
typedef typename Traits::Digraph Digraph; |
| 124 | 124 |
///The type of the capacity map. |
| 125 | 125 |
typedef typename Traits::CapacityMap CapacityMap; |
| 126 | 126 |
///The type of the flow values. |
| 127 | 127 |
typedef typename Traits::Value Value; |
| 128 | 128 |
|
| 129 | 129 |
///The type of the flow map. |
| 130 | 130 |
typedef typename Traits::FlowMap FlowMap; |
| 131 | 131 |
///The type of the elevator. |
| 132 | 132 |
typedef typename Traits::Elevator Elevator; |
| 133 | 133 |
///The type of the tolerance. |
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