Changes in / [799:71f9c1f0d808:800:48fe2a46bf91] in lemon
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- 57 edited
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CMakeLists.txt
r727 r791 35 35 CHECK_TYPE_SIZE("long long" LONG_LONG) 36 36 SET(LEMON_HAVE_LONG_LONG ${HAVE_LONG_LONG}) 37 38 INCLUDE(FindPythonInterp) 37 39 38 40 ENABLE_TESTING() -
configure.ac
r727 r791 42 42 43 43 AC_CHECK_PROG([doxygen_found],[doxygen],[yes],[no]) 44 AC_CHECK_PROG([python_found],[python],[yes],[no]) 44 45 AC_CHECK_PROG([gs_found],[gs],[yes],[no]) 45 46 -
doc/CMakeLists.txt
r726 r791 10 10 ) 11 11 12 IF(DOXYGEN_EXECUTABLE AND GHOSTSCRIPT_EXECUTABLE)12 IF(DOXYGEN_EXECUTABLE AND PYTHONINTERP_FOUND AND GHOSTSCRIPT_EXECUTABLE) 13 13 FILE(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/) 14 14 SET(GHOSTSCRIPT_OPTIONS -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha) … … 29 29 COMMAND ${GHOSTSCRIPT_EXECUTABLE} ${GHOSTSCRIPT_OPTIONS} -r18 -sOutputFile=gen-images/strongly_connected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/strongly_connected_components.eps 30 30 COMMAND ${CMAKE_COMMAND} -E remove_directory html 31 COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/scripts/bib2dox.py ${CMAKE_CURRENT_SOURCE_DIR}/references.bib >references.dox 31 32 COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile 32 33 WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} -
doc/Doxyfile.in
r379 r791 92 92 "@abs_top_srcdir@/demo" \ 93 93 "@abs_top_srcdir@/tools" \ 94 "@abs_top_srcdir@/test/test_tools.h" 94 "@abs_top_srcdir@/test/test_tools.h" \ 95 "@abs_top_builddir@/doc/references.dox" 95 96 INPUT_ENCODING = UTF-8 96 97 FILE_PATTERNS = *.h \ -
doc/Makefile.am
r720 r791 67 67 fi 68 68 69 html-local: $(DOC_PNG_IMAGES) 69 references.dox: doc/references.bib 70 if test ${python_found} = yes; then \ 71 cd doc; \ 72 python @abs_top_srcdir@/scripts/bib2dox.py @abs_top_builddir@/$< >$@; \ 73 cd ..; \ 74 else \ 75 echo; \ 76 echo "Python not found."; \ 77 echo; \ 78 exit 1; \ 79 fi 80 81 html-local: $(DOC_PNG_IMAGES) references.dox 70 82 if test ${doxygen_found} = yes; then \ 71 83 cd doc; \ -
doc/groups.dox
r710 r789 227 227 228 228 /** 229 @defgroup matrices Matrices230 @ingroup datas231 \brief Two dimensional data storages implemented in LEMON.232 233 This group contains two dimensional data storages implemented in LEMON.234 */235 236 /**237 229 @defgroup paths Path Structures 238 230 @ingroup datas … … 247 239 any kind of path structure. 248 240 249 \sa lemon::concepts::Path 241 \sa \ref concepts::Path "Path concept" 242 */ 243 244 /** 245 @defgroup heaps Heap Structures 246 @ingroup datas 247 \brief %Heap structures implemented in LEMON. 248 249 This group contains the heap structures implemented in LEMON. 250 251 LEMON provides several heap classes. They are efficient implementations 252 of the abstract data type \e priority \e queue. They store items with 253 specified values called \e priorities in such a way that finding and 254 removing the item with minimum priority are efficient. 255 The basic operations are adding and erasing items, changing the priority 256 of an item, etc. 257 258 Heaps are crucial in several algorithms, such as Dijkstra and Prim. 259 The heap implementations have the same interface, thus any of them can be 260 used easily in such algorithms. 261 262 \sa \ref concepts::Heap "Heap concept" 263 */ 264 265 /** 266 @defgroup matrices Matrices 267 @ingroup datas 268 \brief Two dimensional data storages implemented in LEMON. 269 270 This group contains two dimensional data storages implemented in LEMON. 250 271 */ 251 272 … … 257 278 This group contains some data structures implemented in LEMON in 258 279 order to make it easier to implement combinatorial algorithms. 280 */ 281 282 /** 283 @defgroup geomdat Geometric Data Structures 284 @ingroup auxdat 285 \brief Geometric data structures implemented in LEMON. 286 287 This group contains geometric data structures implemented in LEMON. 288 289 - \ref lemon::dim2::Point "dim2::Point" implements a two dimensional 290 vector with the usual operations. 291 - \ref lemon::dim2::Box "dim2::Box" can be used to determine the 292 rectangular bounding box of a set of \ref lemon::dim2::Point 293 "dim2::Point"'s. 294 */ 295 296 /** 297 @defgroup matrices Matrices 298 @ingroup auxdat 299 \brief Two dimensional data storages implemented in LEMON. 300 301 This group contains two dimensional data storages implemented in LEMON. 259 302 */ 260 303 … … 299 342 300 343 /** 344 @defgroup spantree Minimum Spanning Tree Algorithms 345 @ingroup algs 346 \brief Algorithms for finding minimum cost spanning trees and arborescences. 347 348 This group contains the algorithms for finding minimum cost spanning 349 trees and arborescences. 350 */ 351 352 /** 301 353 @defgroup max_flow Maximum Flow Algorithms 302 354 @ingroup algs … … 376 428 377 429 \f[ \min_{X \subset V, X\not\in \{\emptyset, V\}} 378 \sum_{uv\in A ,u\in X, v\not\in X}cap(uv) \f]430 \sum_{uv\in A: u\in X, v\not\in X}cap(uv) \f] 379 431 380 432 LEMON contains several algorithms related to minimum cut problems: … … 389 441 If you want to find minimum cut just between two distinict nodes, 390 442 see the \ref max_flow "maximum flow problem". 391 */392 393 /**394 @defgroup graph_properties Connectivity and Other Graph Properties395 @ingroup algs396 \brief Algorithms for discovering the graph properties397 398 This group contains the algorithms for discovering the graph properties399 like connectivity, bipartiteness, euler property, simplicity etc.400 401 \image html edge_biconnected_components.png402 \image latex edge_biconnected_components.eps "bi-edge-connected components" width=\textwidth403 */404 405 /**406 @defgroup planar Planarity Embedding and Drawing407 @ingroup algs408 \brief Algorithms for planarity checking, embedding and drawing409 410 This group contains the algorithms for planarity checking,411 embedding and drawing.412 413 \image html planar.png414 \image latex planar.eps "Plane graph" width=\textwidth415 443 */ 416 444 … … 456 484 457 485 /** 458 @defgroup spantree Minimum Spanning Tree Algorithms 459 @ingroup algs 460 \brief Algorithms for finding minimum cost spanning trees and arborescences. 461 462 This group contains the algorithms for finding minimum cost spanning 463 trees and arborescences. 486 @defgroup graph_properties Connectivity and Other Graph Properties 487 @ingroup algs 488 \brief Algorithms for discovering the graph properties 489 490 This group contains the algorithms for discovering the graph properties 491 like connectivity, bipartiteness, euler property, simplicity etc. 492 493 \image html connected_components.png 494 \image latex connected_components.eps "Connected components" width=\textwidth 495 */ 496 497 /** 498 @defgroup planar Planarity Embedding and Drawing 499 @ingroup algs 500 \brief Algorithms for planarity checking, embedding and drawing 501 502 This group contains the algorithms for planarity checking, 503 embedding and drawing. 504 505 \image html planar.png 506 \image latex planar.eps "Plane graph" width=\textwidth 507 */ 508 509 /** 510 @defgroup approx Approximation Algorithms 511 @ingroup algs 512 \brief Approximation algorithms. 513 514 This group contains the approximation and heuristic algorithms 515 implemented in LEMON. 464 516 */ 465 517 … … 471 523 This group contains some algorithms implemented in LEMON 472 524 in order to make it easier to implement complex algorithms. 473 */474 475 /**476 @defgroup approx Approximation Algorithms477 @ingroup algs478 \brief Approximation algorithms.479 480 This group contains the approximation and heuristic algorithms481 implemented in LEMON.482 525 */ 483 526 … … 588 631 589 632 /** 590 @defgroup dimacs_group DIMACS format633 @defgroup dimacs_group DIMACS Format 591 634 @ingroup io_group 592 635 \brief Read and write files in DIMACS format … … 637 680 \brief Skeleton and concept checking classes for graph structures 638 681 639 This group contains the skeletons and concept checking classes of LEMON's640 graph structures and helper classes used to implement these.682 This group contains the skeletons and concept checking classes of 683 graph structures. 641 684 */ 642 685 … … 650 693 651 694 /** 695 @defgroup tools Standalone Utility Applications 696 697 Some utility applications are listed here. 698 699 The standard compilation procedure (<tt>./configure;make</tt>) will compile 700 them, as well. 701 */ 702 703 /** 652 704 \anchor demoprograms 653 705 … … 661 713 */ 662 714 663 /**664 @defgroup tools Standalone Utility Applications665 666 Some utility applications are listed here.667 668 The standard compilation procedure (<tt>./configure;make</tt>) will compile669 them, as well.670 */671 672 715 } -
lemon/Makefile.am
r714 r755 58 58 lemon/arg_parser.h \ 59 59 lemon/assert.h \ 60 lemon/bellman_ford.h \ 60 61 lemon/bfs.h \ 61 62 lemon/bin_heap.h \ 63 lemon/binom_heap.h \ 64 lemon/bucket_heap.h \ 62 65 lemon/cbc.h \ 63 66 lemon/circulation.h \ … … 77 80 lemon/error.h \ 78 81 lemon/euler.h \ 82 lemon/fib_heap.h \ 83 lemon/fourary_heap.h \ 79 84 lemon/full_graph.h \ 80 85 lemon/glpk.h \ … … 83 88 lemon/grid_graph.h \ 84 89 lemon/hypercube_graph.h \ 90 lemon/kary_heap.h \ 85 91 lemon/kruskal.h \ 86 92 lemon/hao_orlin.h \ … … 91 97 lemon/lp_base.h \ 92 98 lemon/lp_skeleton.h \ 93 lemon/list_graph.h \94 99 lemon/maps.h \ 95 100 lemon/matching.h \ … … 98 103 lemon/nauty_reader.h \ 99 104 lemon/network_simplex.h \ 105 lemon/pairing_heap.h \ 100 106 lemon/path.h \ 101 107 lemon/preflow.h \ 108 lemon/radix_heap.h \ 102 109 lemon/radix_sort.h \ 103 110 lemon/random.h \ -
lemon/bfs.h
r525 r764 48 48 ///The type of the map that stores the predecessor 49 49 ///arcs of the shortest paths. 50 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.50 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 51 51 typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; 52 52 ///Instantiates a \c PredMap. … … 63 63 64 64 ///The type of the map that indicates which nodes are processed. 65 ///It must meet the \ref concepts::WriteMap "WriteMap" concept. 65 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 66 ///By default it is a NullMap. 66 67 typedef NullMap<typename Digraph::Node,bool> ProcessedMap; 67 68 ///Instantiates a \c ProcessedMap. … … 82 83 83 84 ///The type of the map that indicates which nodes are reached. 84 ///It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.85 ///It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 85 86 typedef typename Digraph::template NodeMap<bool> ReachedMap; 86 87 ///Instantiates a \c ReachedMap. … … 97 98 98 99 ///The type of the map that stores the distances of the nodes. 99 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.100 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 100 101 typedef typename Digraph::template NodeMap<int> DistMap; 101 102 ///Instantiates a \c DistMap. … … 226 227 ///\ref named-templ-param "Named parameter" for setting 227 228 ///\c PredMap type. 228 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.229 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 229 230 template <class T> 230 231 struct SetPredMap : public Bfs< Digraph, SetPredMapTraits<T> > { … … 246 247 ///\ref named-templ-param "Named parameter" for setting 247 248 ///\c DistMap type. 248 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.249 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 249 250 template <class T> 250 251 struct SetDistMap : public Bfs< Digraph, SetDistMapTraits<T> > { … … 266 267 ///\ref named-templ-param "Named parameter" for setting 267 268 ///\c ReachedMap type. 268 ///It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.269 ///It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 269 270 template <class T> 270 271 struct SetReachedMap : public Bfs< Digraph, SetReachedMapTraits<T> > { … … 286 287 ///\ref named-templ-param "Named parameter" for setting 287 288 ///\c ProcessedMap type. 288 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.289 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 289 290 template <class T> 290 291 struct SetProcessedMap : public Bfs< Digraph, SetProcessedMapTraits<T> > { … … 414 415 ///The simplest way to execute the BFS algorithm is to use one of the 415 416 ///member functions called \ref run(Node) "run()".\n 416 ///If you need more control on the execution, firstyou have to call417 ///\ref init() , then you can add several source nodes with417 ///If you need better control on the execution, you have to call 418 ///\ref init() first, then you can add several source nodes with 418 419 ///\ref addSource(). Finally the actual path computation can be 419 420 ///performed with one of the \ref start() functions. … … 738 739 ///@{ 739 740 740 ///The shortest path to anode.741 742 ///Returns the shortest path to a node.741 ///The shortest path to the given node. 742 743 ///Returns the shortest path to the given node from the root(s). 743 744 /// 744 745 ///\warning \c t should be reached from the root(s). … … 748 749 Path path(Node t) const { return Path(*G, *_pred, t); } 749 750 750 ///The distance of anode from the root(s).751 752 ///Returns the distance of anode from the root(s).751 ///The distance of the given node from the root(s). 752 753 ///Returns the distance of the given node from the root(s). 753 754 /// 754 755 ///\warning If node \c v is not reached from the root(s), then … … 759 760 int dist(Node v) const { return (*_dist)[v]; } 760 761 761 ///Returns the 'previous arc' of the shortest path tree for a node. 762 762 ///\brief Returns the 'previous arc' of the shortest path tree for 763 ///the given node. 764 /// 763 765 ///This function returns the 'previous arc' of the shortest path 764 766 ///tree for the node \c v, i.e. it returns the last arc of a … … 767 769 /// 768 770 ///The shortest path tree used here is equal to the shortest path 769 ///tree used in \ref predNode() .771 ///tree used in \ref predNode() and \ref predMap(). 770 772 /// 771 773 ///\pre Either \ref run(Node) "run()" or \ref init() … … 773 775 Arc predArc(Node v) const { return (*_pred)[v];} 774 776 775 ///Returns the 'previous node' of the shortest path tree for a node. 776 777 ///\brief Returns the 'previous node' of the shortest path tree for 778 ///the given node. 779 /// 777 780 ///This function returns the 'previous node' of the shortest path 778 781 ///tree for the node \c v, i.e. it returns the last but one node 779 /// froma shortest path from a root to \c v. It is \c INVALID782 ///of a shortest path from a root to \c v. It is \c INVALID 780 783 ///if \c v is not reached from the root(s) or if \c v is a root. 781 784 /// 782 785 ///The shortest path tree used here is equal to the shortest path 783 ///tree used in \ref predArc() .786 ///tree used in \ref predArc() and \ref predMap(). 784 787 /// 785 788 ///\pre Either \ref run(Node) "run()" or \ref init() … … 802 805 /// 803 806 ///Returns a const reference to the node map that stores the predecessor 804 ///arcs, which form the shortest path tree .807 ///arcs, which form the shortest path tree (forest). 805 808 /// 806 809 ///\pre Either \ref run(Node) "run()" or \ref init() … … 808 811 const PredMap &predMap() const { return *_pred;} 809 812 810 ///Checks if anode is reached from the root(s).813 ///Checks if the given node is reached from the root(s). 811 814 812 815 ///Returns \c true if \c v is reached from the root(s). … … 834 837 ///The type of the map that stores the predecessor 835 838 ///arcs of the shortest paths. 836 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.839 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 837 840 typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; 838 841 ///Instantiates a PredMap. … … 849 852 850 853 ///The type of the map that indicates which nodes are processed. 851 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.854 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 852 855 ///By default it is a NullMap. 853 856 typedef NullMap<typename Digraph::Node,bool> ProcessedMap; … … 869 872 870 873 ///The type of the map that indicates which nodes are reached. 871 ///It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.874 ///It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 872 875 typedef typename Digraph::template NodeMap<bool> ReachedMap; 873 876 ///Instantiates a ReachedMap. … … 884 887 885 888 ///The type of the map that stores the distances of the nodes. 886 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.889 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 887 890 typedef typename Digraph::template NodeMap<int> DistMap; 888 891 ///Instantiates a DistMap. … … 899 902 900 903 ///The type of the shortest paths. 901 ///It must meetthe \ref concepts::Path "Path" concept.904 ///It must conform to the \ref concepts::Path "Path" concept. 902 905 typedef lemon::Path<Digraph> Path; 903 906 }; … … 905 908 /// Default traits class used by BfsWizard 906 909 907 /// To make it easier to use Bfs algorithm 908 /// we have created a wizard class. 909 /// This \ref BfsWizard class needs default traits, 910 /// as well as the \ref Bfs class. 911 /// The \ref BfsWizardBase is a class to be the default traits of the 912 /// \ref BfsWizard class. 910 /// Default traits class used by BfsWizard. 911 /// \tparam GR The type of the digraph. 913 912 template<class GR> 914 913 class BfsWizardBase : public BfsWizardDefaultTraits<GR> … … 938 937 /// Constructor. 939 938 940 /// This constructor does not require parameters, thereforeit initiates939 /// This constructor does not require parameters, it initiates 941 940 /// all of the attributes to \c 0. 942 941 BfsWizardBase() : _g(0), _reached(0), _processed(0), _pred(0), … … 968 967 typedef TR Base; 969 968 970 ///The type of the digraph the algorithm runs on.971 969 typedef typename TR::Digraph Digraph; 972 970 … … 976 974 typedef typename Digraph::OutArcIt OutArcIt; 977 975 978 ///\brief The type of the map that stores the predecessor979 ///arcs of the shortest paths.980 976 typedef typename TR::PredMap PredMap; 981 ///\brief The type of the map that stores the distances of the nodes.982 977 typedef typename TR::DistMap DistMap; 983 ///\brief The type of the map that indicates which nodes are reached.984 978 typedef typename TR::ReachedMap ReachedMap; 985 ///\brief The type of the map that indicates which nodes are processed.986 979 typedef typename TR::ProcessedMap ProcessedMap; 987 ///The type of the shortest paths988 980 typedef typename TR::Path Path; 989 981 … … 1068 1060 SetPredMapBase(const TR &b) : TR(b) {} 1069 1061 }; 1070 ///\brief \ref named-func-param "Named parameter" 1071 ///for setting PredMap object. 1072 /// 1073 ///\ref named-func-param "Named parameter" 1074 ///for setting PredMap object. 1062 1063 ///\brief \ref named-templ-param "Named parameter" for setting 1064 ///the predecessor map. 1065 /// 1066 ///\ref named-templ-param "Named parameter" function for setting 1067 ///the map that stores the predecessor arcs of the nodes. 1075 1068 template<class T> 1076 1069 BfsWizard<SetPredMapBase<T> > predMap(const T &t) … … 1086 1079 SetReachedMapBase(const TR &b) : TR(b) {} 1087 1080 }; 1088 ///\brief \ref named-func-param "Named parameter" 1089 ///for setting ReachedMap object. 1090 /// 1091 /// \ref named-func-param "Named parameter" 1092 ///for setting ReachedMap object. 1081 1082 ///\brief \ref named-templ-param "Named parameter" for setting 1083 ///the reached map. 1084 /// 1085 ///\ref named-templ-param "Named parameter" function for setting 1086 ///the map that indicates which nodes are reached. 1093 1087 template<class T> 1094 1088 BfsWizard<SetReachedMapBase<T> > reachedMap(const T &t) … … 1104 1098 SetDistMapBase(const TR &b) : TR(b) {} 1105 1099 }; 1106 ///\brief \ref named-func-param "Named parameter" 1107 ///for setting DistMap object. 1108 /// 1109 /// \ref named-func-param "Named parameter" 1110 ///for setting DistMap object. 1100 1101 ///\brief \ref named-templ-param "Named parameter" for setting 1102 ///the distance map. 1103 /// 1104 ///\ref named-templ-param "Named parameter" function for setting 1105 ///the map that stores the distances of the nodes calculated 1106 ///by the algorithm. 1111 1107 template<class T> 1112 1108 BfsWizard<SetDistMapBase<T> > distMap(const T &t) … … 1122 1118 SetProcessedMapBase(const TR &b) : TR(b) {} 1123 1119 }; 1124 ///\brief \ref named-func-param "Named parameter" 1125 ///for setting ProcessedMap object. 1126 /// 1127 /// \ref named-func-param "Named parameter" 1128 ///for setting ProcessedMap object. 1120 1121 ///\brief \ref named-func-param "Named parameter" for setting 1122 ///the processed map. 1123 /// 1124 ///\ref named-templ-param "Named parameter" function for setting 1125 ///the map that indicates which nodes are processed. 1129 1126 template<class T> 1130 1127 BfsWizard<SetProcessedMapBase<T> > processedMap(const T &t) … … 1265 1262 /// 1266 1263 /// The type of the map that indicates which nodes are reached. 1267 /// It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.1264 /// It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 1268 1265 typedef typename Digraph::template NodeMap<bool> ReachedMap; 1269 1266 … … 1426 1423 /// The simplest way to execute the BFS algorithm is to use one of the 1427 1424 /// member functions called \ref run(Node) "run()".\n 1428 /// If you need more control on the execution, firstyou have to call1429 /// \ref init() , then you can add several source nodes with1425 /// If you need better control on the execution, you have to call 1426 /// \ref init() first, then you can add several source nodes with 1430 1427 /// \ref addSource(). Finally the actual path computation can be 1431 1428 /// performed with one of the \ref start() functions. … … 1736 1733 ///@{ 1737 1734 1738 /// \brief Checks if anode is reached from the root(s).1735 /// \brief Checks if the given node is reached from the root(s). 1739 1736 /// 1740 1737 /// Returns \c true if \c v is reached from the root(s). -
lemon/bin_heap.h
r631 r758 20 20 #define LEMON_BIN_HEAP_H 21 21 22 ///\ingroup auxdat22 ///\ingroup heaps 23 23 ///\file 24 ///\brief Binary Heap implementation.24 ///\brief Binary heap implementation. 25 25 26 26 #include <vector> … … 30 30 namespace lemon { 31 31 32 /// \ingroup auxdat32 /// \ingroup heaps 33 33 /// 34 /// \brief A Binary Heap implementation.34 /// \brief Binary heap data structure. 35 35 /// 36 ///This class implements the \e binary \e heap data structure. 37 /// 38 ///A \e heap is a data structure for storing items with specified values 39 ///called \e priorities in such a way that finding the item with minimum 40 ///priority is efficient. \c Comp specifies the ordering of the priorities. 41 ///In a heap one can change the priority of an item, add or erase an 42 ///item, etc. 36 /// This class implements the \e binary \e heap data structure. 37 /// It fully conforms to the \ref concepts::Heap "heap concept". 43 38 /// 44 ///\tparam PR Type of the priority of the items. 45 ///\tparam IM A read and writable item map with int values, used internally 46 ///to handle the cross references. 47 ///\tparam Comp A functor class for the ordering of the priorities. 48 ///The default is \c std::less<PR>. 49 /// 50 ///\sa FibHeap 51 ///\sa Dijkstra 52 template <typename PR, typename IM, typename Comp = std::less<PR> > 39 /// \tparam PR Type of the priorities of the items. 40 /// \tparam IM A read-writable item map with \c int values, used 41 /// internally to handle the cross references. 42 /// \tparam CMP A functor class for comparing the priorities. 43 /// The default is \c std::less<PR>. 44 #ifdef DOXYGEN 45 template <typename PR, typename IM, typename CMP> 46 #else 47 template <typename PR, typename IM, typename CMP = std::less<PR> > 48 #endif 53 49 class BinHeap { 54 55 50 public: 56 ///\e 51 52 /// Type of the item-int map. 57 53 typedef IM ItemIntMap; 58 /// \e54 /// Type of the priorities. 59 55 typedef PR Prio; 60 /// \e56 /// Type of the items stored in the heap. 61 57 typedef typename ItemIntMap::Key Item; 62 /// \e58 /// Type of the item-priority pairs. 63 59 typedef std::pair<Item,Prio> Pair; 64 /// \e65 typedef C ompCompare;66 67 /// \brief Type to represent the items states.68 /// 69 /// Each Item element have a state associated to it. It maybe "in heap",70 /// "pre heap" or "postheap". The latter two are indifferent from the60 /// Functor type for comparing the priorities. 61 typedef CMP Compare; 62 63 /// \brief Type to represent the states of the items. 64 /// 65 /// Each item has a state associated to it. It can be "in heap", 66 /// "pre-heap" or "post-heap". The latter two are indifferent from the 71 67 /// heap's point of view, but may be useful to the user. 72 68 /// … … 85 81 86 82 public: 87 /// \brief The constructor. 88 /// 89 /// The constructor. 90 /// \param map should be given to the constructor, since it is used 91 /// internally to handle the cross references. The value of the map 92 /// must be \c PRE_HEAP (<tt>-1</tt>) for every item. 83 84 /// \brief Constructor. 85 /// 86 /// Constructor. 87 /// \param map A map that assigns \c int values to the items. 88 /// It is used internally to handle the cross references. 89 /// The assigned value must be \c PRE_HEAP (<tt>-1</tt>) for each item. 93 90 explicit BinHeap(ItemIntMap &map) : _iim(map) {} 94 91 95 /// \brief The constructor. 96 /// 97 /// The constructor. 98 /// \param map should be given to the constructor, since it is used 99 /// internally to handle the cross references. The value of the map 100 /// should be PRE_HEAP (-1) for each element. 101 /// 102 /// \param comp The comparator function object. 92 /// \brief Constructor. 93 /// 94 /// Constructor. 95 /// \param map A map that assigns \c int values to the items. 96 /// It is used internally to handle the cross references. 97 /// The assigned value must be \c PRE_HEAP (<tt>-1</tt>) for each item. 98 /// \param comp The function object used for comparing the priorities. 103 99 BinHeap(ItemIntMap &map, const Compare &comp) 104 100 : _iim(map), _comp(comp) {} 105 101 106 102 107 /// The number of items stored in the heap.108 /// 109 /// \brief Returns the number of items stored in the heap.103 /// \brief The number of items stored in the heap. 104 /// 105 /// This function returns the number of items stored in the heap. 110 106 int size() const { return _data.size(); } 111 107 112 /// \brief Check s if the heap stores no items.113 /// 114 /// Returns \c true if and only if the heap stores no items.108 /// \brief Check if the heap is empty. 109 /// 110 /// This function returns \c true if the heap is empty. 115 111 bool empty() const { return _data.empty(); } 116 112 117 /// \brief Make empty this heap. 118 /// 119 /// Make empty this heap. It does not change the cross reference map. 120 /// If you want to reuse what is not surely empty you should first clear 121 /// the heap and after that you should set the cross reference map for 122 /// each item to \c PRE_HEAP. 113 /// \brief Make the heap empty. 114 /// 115 /// This functon makes the heap empty. 116 /// It does not change the cross reference map. If you want to reuse 117 /// a heap that is not surely empty, you should first clear it and 118 /// then you should set the cross reference map to \c PRE_HEAP 119 /// for each item. 123 120 void clear() { 124 121 _data.clear(); … … 128 125 static int parent(int i) { return (i-1)/2; } 129 126 130 static int second _child(int i) { return 2*i+2; }127 static int secondChild(int i) { return 2*i+2; } 131 128 bool less(const Pair &p1, const Pair &p2) const { 132 129 return _comp(p1.second, p2.second); 133 130 } 134 131 135 int bubble _up(int hole, Pair p) {132 int bubbleUp(int hole, Pair p) { 136 133 int par = parent(hole); 137 134 while( hole>0 && less(p,_data[par]) ) { … … 144 141 } 145 142 146 int bubble _down(int hole, Pair p, int length) {147 int child = second _child(hole);143 int bubbleDown(int hole, Pair p, int length) { 144 int child = secondChild(hole); 148 145 while(child < length) { 149 146 if( less(_data[child-1], _data[child]) ) { … … 154 151 move(_data[child], hole); 155 152 hole = child; 156 child = second _child(hole);153 child = secondChild(hole); 157 154 } 158 155 child--; … … 172 169 173 170 public: 171 174 172 /// \brief Insert a pair of item and priority into the heap. 175 173 /// 176 /// Adds \c p.first to the heap with priority \c p.second. 174 /// This function inserts \c p.first to the heap with priority 175 /// \c p.second. 177 176 /// \param p The pair to insert. 177 /// \pre \c p.first must not be stored in the heap. 178 178 void push(const Pair &p) { 179 179 int n = _data.size(); 180 180 _data.resize(n+1); 181 bubble_up(n, p); 182 } 183 184 /// \brief Insert an item into the heap with the given heap. 185 /// 186 /// Adds \c i to the heap with priority \c p. 181 bubbleUp(n, p); 182 } 183 184 /// \brief Insert an item into the heap with the given priority. 185 /// 186 /// This function inserts the given item into the heap with the 187 /// given priority. 187 188 /// \param i The item to insert. 188 189 /// \param p The priority of the item. 190 /// \pre \e i must not be stored in the heap. 189 191 void push(const Item &i, const Prio &p) { push(Pair(i,p)); } 190 192 191 /// \brief Returns the item with minimum priority relative to \c Compare. 192 /// 193 /// This method returns the item with minimum priority relative to \c 194 /// Compare. 195 /// \pre The heap must be nonempty. 193 /// \brief Return the item having minimum priority. 194 /// 195 /// This function returns the item having minimum priority. 196 /// \pre The heap must be non-empty. 196 197 Item top() const { 197 198 return _data[0].first; 198 199 } 199 200 200 /// \brief Returns the minimum priority relative to \c Compare.201 /// 202 /// It returns the minimum priority relative to \c Compare.203 /// \pre The heap must be non empty.201 /// \brief The minimum priority. 202 /// 203 /// This function returns the minimum priority. 204 /// \pre The heap must be non-empty. 204 205 Prio prio() const { 205 206 return _data[0].second; 206 207 } 207 208 208 /// \brief Deletes the item with minimum priority relative to \c Compare. 209 /// 210 /// This method deletes the item with minimum priority relative to \c 211 /// Compare from the heap. 209 /// \brief Remove the item having minimum priority. 210 /// 211 /// This function removes the item having minimum priority. 212 212 /// \pre The heap must be non-empty. 213 213 void pop() { … … 215 215 _iim.set(_data[0].first, POST_HEAP); 216 216 if (n > 0) { 217 bubble _down(0, _data[n], n);217 bubbleDown(0, _data[n], n); 218 218 } 219 219 _data.pop_back(); 220 220 } 221 221 222 /// \brief Deletes \c i from the heap. 223 /// 224 /// This method deletes item \c i from the heap. 225 /// \param i The item to erase. 226 /// \pre The item should be in the heap. 222 /// \brief Remove the given item from the heap. 223 /// 224 /// This function removes the given item from the heap if it is 225 /// already stored. 226 /// \param i The item to delete. 227 /// \pre \e i must be in the heap. 227 228 void erase(const Item &i) { 228 229 int h = _iim[i]; … … 230 231 _iim.set(_data[h].first, POST_HEAP); 231 232 if( h < n ) { 232 if ( bubble _up(h, _data[n]) == h) {233 bubble _down(h, _data[n], n);233 if ( bubbleUp(h, _data[n]) == h) { 234 bubbleDown(h, _data[n], n); 234 235 } 235 236 } … … 237 238 } 238 239 239 240 /// \brief Returns the priority of \c i. 241 /// 242 /// This function returns the priority of item \c i. 243 /// \param i The item. 244 /// \pre \c i must be in the heap. 240 /// \brief The priority of the given item. 241 /// 242 /// This function returns the priority of the given item. 243 /// \param i The item. 244 /// \pre \e i must be in the heap. 245 245 Prio operator[](const Item &i) const { 246 246 int idx = _iim[i]; … … 248 248 } 249 249 250 /// \brief \c i gets to the heap with priority \c p independently 251 /// if \c i was already there. 252 /// 253 /// This method calls \ref push(\c i, \c p) if \c i is not stored 254 /// in the heap and sets the priority of \c i to \c p otherwise. 250 /// \brief Set the priority of an item or insert it, if it is 251 /// not stored in the heap. 252 /// 253 /// This method sets the priority of the given item if it is 254 /// already stored in the heap. Otherwise it inserts the given 255 /// item into the heap with the given priority. 255 256 /// \param i The item. 256 257 /// \param p The priority. … … 261 262 } 262 263 else if( _comp(p, _data[idx].second) ) { 263 bubble _up(idx, Pair(i,p));264 bubbleUp(idx, Pair(i,p)); 264 265 } 265 266 else { 266 bubble _down(idx, Pair(i,p), _data.size());267 } 268 } 269 270 /// \brief Decrease s the priority of \c i to \c p.271 /// 272 /// This method decreases the priority of item \c i to \c p.267 bubbleDown(idx, Pair(i,p), _data.size()); 268 } 269 } 270 271 /// \brief Decrease the priority of an item to the given value. 272 /// 273 /// This function decreases the priority of an item to the given value. 273 274 /// \param i The item. 274 275 /// \param p The priority. 275 /// \pre \c i must be stored in the heap with priority at least \c 276 /// p relative to \c Compare. 276 /// \pre \e i must be stored in the heap with priority at least \e p. 277 277 void decrease(const Item &i, const Prio &p) { 278 278 int idx = _iim[i]; 279 bubble _up(idx, Pair(i,p));280 } 281 282 /// \brief Increase s the priority of \c i to \c p.283 /// 284 /// This method sets the priority of item \c i to \c p.279 bubbleUp(idx, Pair(i,p)); 280 } 281 282 /// \brief Increase the priority of an item to the given value. 283 /// 284 /// This function increases the priority of an item to the given value. 285 285 /// \param i The item. 286 286 /// \param p The priority. 287 /// \pre \c i must be stored in the heap with priority at most \c 288 /// p relative to \c Compare. 287 /// \pre \e i must be stored in the heap with priority at most \e p. 289 288 void increase(const Item &i, const Prio &p) { 290 289 int idx = _iim[i]; 291 bubble _down(idx, Pair(i,p), _data.size());292 } 293 294 /// \brief Return s if \c item is in, has already been in, or has295 /// never been in the heap.296 /// 297 /// This method returns PRE_HEAP if \c item has never been in the298 /// heap, IN_HEAP if it is in the heap at the moment, and POST_HEAP299 /// otherwise. In the latter case it is possible that \c item will300 /// get backto the heap again.290 bubbleDown(idx, Pair(i,p), _data.size()); 291 } 292 293 /// \brief Return the state of an item. 294 /// 295 /// This method returns \c PRE_HEAP if the given item has never 296 /// been in the heap, \c IN_HEAP if it is in the heap at the moment, 297 /// and \c POST_HEAP otherwise. 298 /// In the latter case it is possible that the item will get back 299 /// to the heap again. 301 300 /// \param i The item. 302 301 State state(const Item &i) const { … … 307 306 } 308 307 309 /// \brief Set s the state of the \citem in the heap.310 /// 311 /// Sets the state of the \c item in the heap. It can be used to312 /// manually clear the heap when it is important to achive the313 /// better time complexity.308 /// \brief Set the state of an item in the heap. 309 /// 310 /// This function sets the state of the given item in the heap. 311 /// It can be used to manually clear the heap when it is important 312 /// to achive better time complexity. 314 313 /// \param i The item. 315 314 /// \param st The state. It should not be \c IN_HEAP. … … 328 327 } 329 328 330 /// \brief Replaces an item in the heap. 331 /// 332 /// The \c i item is replaced with \c j item. The \c i item should 333 /// be in the heap, while the \c j should be out of the heap. The 334 /// \c i item will out of the heap and \c j will be in the heap 335 /// with the same prioriority as prevoiusly the \c i item. 329 /// \brief Replace an item in the heap. 330 /// 331 /// This function replaces item \c i with item \c j. 332 /// Item \c i must be in the heap, while \c j must be out of the heap. 333 /// After calling this method, item \c i will be out of the 334 /// heap and \c j will be in the heap with the same prioriority 335 /// as item \c i had before. 336 336 void replace(const Item& i, const Item& j) { 337 337 int idx = _iim[i]; -
lemon/bits/edge_set_extender.h
r664 r732 538 538 539 539 public: 540 ArcMap(const Graph& _g)540 explicit ArcMap(const Graph& _g) 541 541 : Parent(_g) {} 542 542 ArcMap(const Graph& _g, const _Value& _v) … … 562 562 563 563 public: 564 EdgeMap(const Graph& _g)564 explicit EdgeMap(const Graph& _g) 565 565 : Parent(_g) {} 566 566 -
lemon/bits/graph_extender.h
r664 r732 605 605 606 606 public: 607 NodeMap(const Graph& graph)607 explicit NodeMap(const Graph& graph) 608 608 : Parent(graph) {} 609 609 NodeMap(const Graph& graph, const _Value& value) … … 629 629 630 630 public: 631 ArcMap(const Graph& graph)631 explicit ArcMap(const Graph& graph) 632 632 : Parent(graph) {} 633 633 ArcMap(const Graph& graph, const _Value& value) … … 653 653 654 654 public: 655 EdgeMap(const Graph& graph)655 explicit EdgeMap(const Graph& graph) 656 656 : Parent(graph) {} 657 657 -
lemon/bits/map_extender.h
r664 r765 50 50 typedef typename Parent::ConstReference ConstReference; 51 51 52 typedef typename Parent::ReferenceMapTag ReferenceMapTag; 53 52 54 class MapIt; 53 55 class ConstMapIt; … … 192 194 typedef typename Parent::ConstReference ConstReference; 193 195 196 typedef typename Parent::ReferenceMapTag ReferenceMapTag; 197 194 198 class MapIt; 195 199 class ConstMapIt; -
lemon/cbc.cc
r623 r793 95 95 } 96 96 97 int CbcMip::_addRow(Value l, ExprIterator b, ExprIterator e, Value u) { 98 std::vector<int> indexes; 99 std::vector<Value> values; 100 101 for(ExprIterator it = b; it != e; ++it) { 102 indexes.push_back(it->first); 103 values.push_back(it->second); 104 } 105 106 _prob->addRow(values.size(), &indexes.front(), &values.front(), l, u); 107 return _prob->numberRows() - 1; 108 } 97 109 98 110 void CbcMip::_eraseCol(int i) { -
lemon/cbc.h
r623 r793 63 63 virtual int _addCol(); 64 64 virtual int _addRow(); 65 virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u); 65 66 66 67 virtual void _eraseCol(int i); -
lemon/circulation.h
r735 r762 73 73 /// It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" 74 74 /// concept. 75 #ifdef DOXYGEN 76 typedef GR::ArcMap<Value> FlowMap; 77 #else 75 78 typedef typename Digraph::template ArcMap<Value> FlowMap; 79 #endif 76 80 77 81 /// \brief Instantiates a FlowMap. … … 88 92 /// The elevator type used by the algorithm. 89 93 /// 90 /// \sa Elevator 91 /// \sa LinkedElevator 94 /// \sa Elevator, LinkedElevator 95 #ifdef DOXYGEN 96 typedef lemon::Elevator<GR, GR::Node> Elevator; 97 #else 92 98 typedef lemon::Elevator<Digraph, typename Digraph::Node> Elevator; 99 #endif 93 100 94 101 /// \brief Instantiates an Elevator. … … 451 458 } 452 459 453 /// \brief Sets the tolerance used by algorithm. 454 /// 455 /// Sets the tolerance used by algorithm. 460 /// \brief Sets the tolerance used by the algorithm. 461 /// 462 /// Sets the tolerance object used by the algorithm. 463 /// \return <tt>(*this)</tt> 456 464 Circulation& tolerance(const Tolerance& tolerance) { 457 465 _tol = tolerance; … … 461 469 /// \brief Returns a const reference to the tolerance. 462 470 /// 463 /// Returns a const reference to the tolerance. 471 /// Returns a const reference to the tolerance object used by 472 /// the algorithm. 464 473 const Tolerance& tolerance() const { 465 474 return _tol; … … 468 477 /// \name Execution Control 469 478 /// The simplest way to execute the algorithm is to call \ref run().\n 470 /// If you need morecontrol on the initial solution or the execution,471 /// first you have to call one of the \ref init() functions, then479 /// If you need better control on the initial solution or the execution, 480 /// you have to call one of the \ref init() functions first, then 472 481 /// the \ref start() function. 473 482 -
lemon/clp.cc
r623 r793 79 79 } 80 80 81 int ClpLp::_addRow(Value l, ExprIterator b, ExprIterator e, Value u) { 82 std::vector<int> indexes; 83 std::vector<Value> values; 84 85 for(ExprIterator it = b; it != e; ++it) { 86 indexes.push_back(it->first); 87 values.push_back(it->second); 88 } 89 90 _prob->addRow(values.size(), &indexes.front(), &values.front(), l, u); 91 return _prob->numberRows() - 1; 92 } 93 81 94 82 95 void ClpLp::_eraseCol(int c) { -
lemon/clp.h
r623 r793 76 76 virtual int _addCol(); 77 77 virtual int _addRow(); 78 virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u); 78 79 79 80 virtual void _eraseCol(int i); -
lemon/concepts/digraph.h
r627 r781 36 36 /// \brief Class describing the concept of directed graphs. 37 37 /// 38 /// This class describes the \ref concept "concept" of the39 /// immutable directed digraphs.38 /// This class describes the common interface of all directed 39 /// graphs (digraphs). 40 40 /// 41 /// Note that actual digraph implementation like @ref ListDigraph or 42 /// @ref SmartDigraph may have several additional functionality. 41 /// Like all concept classes, it only provides an interface 42 /// without any sensible implementation. So any general algorithm for 43 /// directed graphs should compile with this class, but it will not 44 /// run properly, of course. 45 /// An actual digraph implementation like \ref ListDigraph or 46 /// \ref SmartDigraph may have additional functionality. 43 47 /// 44 /// \sa concept48 /// \sa Graph 45 49 class Digraph { 46 50 private: 47 ///Digraphs are \e not copy constructible. Use DigraphCopy() instead. 48 49 ///Digraphs are \e not copy constructible. Use DigraphCopy() instead. 50 /// 51 Digraph(const Digraph &) {}; 52 ///\brief Assignment of \ref Digraph "Digraph"s to another ones are 53 ///\e not allowed. Use DigraphCopy() instead. 54 55 ///Assignment of \ref Digraph "Digraph"s to another ones are 56 ///\e not allowed. Use DigraphCopy() instead. 57 51 /// Diraphs are \e not copy constructible. Use DigraphCopy instead. 52 Digraph(const Digraph &) {} 53 /// \brief Assignment of a digraph to another one is \e not allowed. 54 /// Use DigraphCopy instead. 58 55 void operator=(const Digraph &) {} 56 59 57 public: 60 ///\e 61 62 /// Defalult constructor. 63 64 /// Defalult constructor. 65 /// 58 /// Default constructor. 66 59 Digraph() { } 67 /// Class for identifying a node of the digraph 60 61 /// The node type of the digraph 68 62 69 63 /// This class identifies a node of the digraph. It also serves 70 64 /// as a base class of the node iterators, 71 /// thus they willconvert to this type.65 /// thus they convert to this type. 72 66 class Node { 73 67 public: 74 68 /// Default constructor 75 69 76 /// @warning The default constructor sets the iterator77 /// to an undefined value.70 /// Default constructor. 71 /// \warning It sets the object to an undefined value. 78 72 Node() { } 79 73 /// Copy constructor. … … 83 77 Node(const Node&) { } 84 78 85 /// Invalid constructor \& conversion.86 87 /// This constructor initializes the iteratorto be invalid.79 /// %Invalid constructor \& conversion. 80 81 /// Initializes the object to be invalid. 88 82 /// \sa Invalid for more details. 89 83 Node(Invalid) { } 90 84 /// Equality operator 91 85 86 /// Equality operator. 87 /// 92 88 /// Two iterators are equal if and only if they point to the 93 /// same object or both are invalid.89 /// same object or both are \c INVALID. 94 90 bool operator==(Node) const { return true; } 95 91 96 92 /// Inequality operator 97 93 98 /// \sa operator==(Node n) 99 /// 94 /// Inequality operator. 100 95 bool operator!=(Node) const { return true; } 101 96 102 97 /// Artificial ordering operator. 103 98 104 /// To allow the use of digraph descriptors as key type in std::map or 105 /// similar associative container we require this. 106 /// 107 /// \note This operator only have to define some strict ordering of 108 /// the items; this order has nothing to do with the iteration 109 /// ordering of the items. 99 /// Artificial ordering operator. 100 /// 101 /// \note This operator only has to define some strict ordering of 102 /// the nodes; this order has nothing to do with the iteration 103 /// ordering of the nodes. 110 104 bool operator<(Node) const { return false; } 111 112 }; 113 114 /// This iterator goes through each node. 115 116 /// This iterator goes through each node. 105 }; 106 107 /// Iterator class for the nodes. 108 109 /// This iterator goes through each node of the digraph. 117 110 /// Its usage is quite simple, for example you can count the number 118 /// of nodes in digraph \c g of type \cDigraph like this:111 /// of nodes in a digraph \c g of type \c %Digraph like this: 119 112 ///\code 120 113 /// int count=0; … … 125 118 /// Default constructor 126 119 127 /// @warning The default constructor sets the iterator128 /// to an undefined value.120 /// Default constructor. 121 /// \warning It sets the iterator to an undefined value. 129 122 NodeIt() { } 130 123 /// Copy constructor. … … 133 126 /// 134 127 NodeIt(const NodeIt& n) : Node(n) { } 135 /// Invalid constructor \& conversion.136 137 /// Initialize the iterator to be invalid.128 /// %Invalid constructor \& conversion. 129 130 /// Initializes the iterator to be invalid. 138 131 /// \sa Invalid for more details. 139 132 NodeIt(Invalid) { } 140 133 /// Sets the iterator to the first node. 141 134 142 /// Sets the iterator to the first node of \c g. 143 /// 144 NodeIt(const Digraph&) { } 145 /// Node -> NodeIt conversion. 146 147 /// Sets the iterator to the node of \c the digraph pointed by 148 /// the trivial iterator. 149 /// This feature necessitates that each time we 150 /// iterate the arc-set, the iteration order is the same. 135 /// Sets the iterator to the first node of the given digraph. 136 /// 137 explicit NodeIt(const Digraph&) { } 138 /// Sets the iterator to the given node. 139 140 /// Sets the iterator to the given node of the given digraph. 141 /// 151 142 NodeIt(const Digraph&, const Node&) { } 152 143 /// Next node. … … 158 149 159 150 160 /// Class for identifying an arcof the digraph151 /// The arc type of the digraph 161 152 162 153 /// This class identifies an arc of the digraph. It also serves … … 167 158 /// Default constructor 168 159 169 /// @warning The default constructor sets the iterator170 /// to an undefined value.160 /// Default constructor. 161 /// \warning It sets the object to an undefined value. 171 162 Arc() { } 172 163 /// Copy constructor. … … 175 166 /// 176 167 Arc(const Arc&) { } 177 /// Initialize the iterator to be invalid.178 179 /// Initialize the iteratorto be invalid.180 /// 168 /// %Invalid constructor \& conversion. 169 170 /// Initializes the object to be invalid. 171 /// \sa Invalid for more details. 181 172 Arc(Invalid) { } 182 173 /// Equality operator 183 174 175 /// Equality operator. 176 /// 184 177 /// Two iterators are equal if and only if they point to the 185 /// same object or both are invalid.178 /// same object or both are \c INVALID. 186 179 bool operator==(Arc) const { return true; } 187 180 /// Inequality operator 188 181 189 /// \sa operator==(Arc n) 190 /// 182 /// Inequality operator. 191 183 bool operator!=(Arc) const { return true; } 192 184 193 185 /// Artificial ordering operator. 194 186 195 /// To allow the use of digraph descriptors as key type in std::map or 196 /// similar associative container we require this. 197 /// 198 /// \note This operator only have to define some strict ordering of 199 /// the items; this order has nothing to do with the iteration 200 /// ordering of the items. 187 /// Artificial ordering operator. 188 /// 189 /// \note This operator only has to define some strict ordering of 190 /// the arcs; this order has nothing to do with the iteration 191 /// ordering of the arcs. 201 192 bool operator<(Arc) const { return false; } 202 193 }; 203 194 204 /// This iterator goes troughthe outgoing arcs of a node.195 /// Iterator class for the outgoing arcs of a node. 205 196 206 197 /// This iterator goes trough the \e outgoing arcs of a certain node … … 208 199 /// Its usage is quite simple, for example you can count the number 209 200 /// of outgoing arcs of a node \c n 210 /// in digraph \c g of type \cDigraph as follows.201 /// in a digraph \c g of type \c %Digraph as follows. 211 202 ///\code 212 203 /// int count=0; 213 /// for (Digraph::OutArcIt e(g, n); e!=INVALID; ++e) ++count;204 /// for (Digraph::OutArcIt a(g, n); a!=INVALID; ++a) ++count; 214 205 ///\endcode 215 216 206 class OutArcIt : public Arc { 217 207 public: 218 208 /// Default constructor 219 209 220 /// @warning The default constructor sets the iterator221 /// to an undefined value.210 /// Default constructor. 211 /// \warning It sets the iterator to an undefined value. 222 212 OutArcIt() { } 223 213 /// Copy constructor. … … 226 216 /// 227 217 OutArcIt(const OutArcIt& e) : Arc(e) { } 228 /// Initialize the iterator to be invalid.229 230 /// Initialize the iterator to be invalid.231 /// 218 /// %Invalid constructor \& conversion. 219 220 /// Initializes the iterator to be invalid. 221 /// \sa Invalid for more details. 232 222 OutArcIt(Invalid) { } 233 /// This constructor sets the iterator to the first outgoing arc.234 235 /// This constructor sets the iterator to the first outgoing arc of236 /// the node.223 /// Sets the iterator to the first outgoing arc. 224 225 /// Sets the iterator to the first outgoing arc of the given node. 226 /// 237 227 OutArcIt(const Digraph&, const Node&) { } 238 /// Arc -> OutArcIt conversion 239 240 /// Sets the iterator to the value of the trivial iterator. 241 /// This feature necessitates that each time we 242 /// iterate the arc-set, the iteration order is the same. 228 /// Sets the iterator to the given arc. 229 230 /// Sets the iterator to the given arc of the given digraph. 231 /// 243 232 OutArcIt(const Digraph&, const Arc&) { } 244 /// Next outgoing arc233 /// Next outgoing arc 245 234 246 235 /// Assign the iterator to the next … … 249 238 }; 250 239 251 /// This iterator goes troughthe incoming arcs of a node.240 /// Iterator class for the incoming arcs of a node. 252 241 253 242 /// This iterator goes trough the \e incoming arcs of a certain node 254 243 /// of a digraph. 255 244 /// Its usage is quite simple, for example you can count the number 256 /// of outgoing arcs of a node \c n257 /// in digraph \c g of type \cDigraph as follows.245 /// of incoming arcs of a node \c n 246 /// in a digraph \c g of type \c %Digraph as follows. 258 247 ///\code 259 248 /// int count=0; 260 /// for(Digraph::InArcIt e(g, n); e!=INVALID; ++e) ++count;249 /// for(Digraph::InArcIt a(g, n); a!=INVALID; ++a) ++count; 261 250 ///\endcode 262 263 251 class InArcIt : public Arc { 264 252 public: 265 253 /// Default constructor 266 254 267 /// @warning The default constructor sets the iterator268 /// to an undefined value.255 /// Default constructor. 256 /// \warning It sets the iterator to an undefined value. 269 257 InArcIt() { } 270 258 /// Copy constructor. … … 273 261 /// 274 262 InArcIt(const InArcIt& e) : Arc(e) { } 275 /// Initialize the iterator to be invalid.276 277 /// Initialize the iterator to be invalid.278 /// 263 /// %Invalid constructor \& conversion. 264 265 /// Initializes the iterator to be invalid. 266 /// \sa Invalid for more details. 279 267 InArcIt(Invalid) { } 280 /// This constructor sets the iterator tofirst incoming arc.281 282 /// This constructor set the iterator to the first incoming arc of283 /// the node.268 /// Sets the iterator to the first incoming arc. 269 270 /// Sets the iterator to the first incoming arc of the given node. 271 /// 284 272 InArcIt(const Digraph&, const Node&) { } 285 /// Arc -> InArcIt conversion 286 287 /// Sets the iterator to the value of the trivial iterator \c e. 288 /// This feature necessitates that each time we 289 /// iterate the arc-set, the iteration order is the same. 273 /// Sets the iterator to the given arc. 274 275 /// Sets the iterator to the given arc of the given digraph. 276 /// 290 277 InArcIt(const Digraph&, const Arc&) { } 291 278 /// Next incoming arc 292 279 293 /// Assign the iterator to the next inarc of the corresponding node.294 /// 280 /// Assign the iterator to the next 281 /// incoming arc of the corresponding node. 295 282 InArcIt& operator++() { return *this; } 296 283 }; 297 /// This iterator goes through each arc. 298 299 /// This iterator goes through each arc of a digraph. 284 285 /// Iterator class for the arcs. 286 287 /// This iterator goes through each arc of the digraph. 300 288 /// Its usage is quite simple, for example you can count the number 301 /// of arcs in a digraph \c g of type \c Digraph as follows:289 /// of arcs in a digraph \c g of type \c %Digraph as follows: 302 290 ///\code 303 291 /// int count=0; 304 /// for(Digraph::ArcIt e(g); e!=INVALID; ++e) ++count;292 /// for(Digraph::ArcIt a(g); a!=INVALID; ++a) ++count; 305 293 ///\endcode 306 294 class ArcIt : public Arc { … … 308 296 /// Default constructor 309 297 310 /// @warning The default constructor sets the iterator311 /// to an undefined value.298 /// Default constructor. 299 /// \warning It sets the iterator to an undefined value. 312 300 ArcIt() { } 313 301 /// Copy constructor. … … 316 304 /// 317 305 ArcIt(const ArcIt& e) : Arc(e) { } 318 /// Initialize the iterator to be invalid.319 320 /// Initialize the iterator to be invalid.321 /// 306 /// %Invalid constructor \& conversion. 307 308 /// Initializes the iterator to be invalid. 309 /// \sa Invalid for more details. 322 310 ArcIt(Invalid) { } 323 /// This constructor sets the iterator to the first arc. 324 325 /// This constructor sets the iterator to the first arc of \c g. 326 ///@param g the digraph 327 ArcIt(const Digraph& g) { ignore_unused_variable_warning(g); } 328 /// Arc -> ArcIt conversion 329 330 /// Sets the iterator to the value of the trivial iterator \c e. 331 /// This feature necessitates that each time we 332 /// iterate the arc-set, the iteration order is the same. 311 /// Sets the iterator to the first arc. 312 313 /// Sets the iterator to the first arc of the given digraph. 314 /// 315 explicit ArcIt(const Digraph& g) { ignore_unused_variable_warning(g); } 316 /// Sets the iterator to the given arc. 317 318 /// Sets the iterator to the given arc of the given digraph. 319 /// 333 320 ArcIt(const Digraph&, const Arc&) { } 334 /// Next arc321 /// Next arc 335 322 336 323 /// Assign the iterator to the next arc. 324 /// 337 325 ArcIt& operator++() { return *this; } 338 326 }; 339 ///Gives back the target node of an arc. 340 341 ///Gives back the target node of an arc. 342 /// 327 328 /// \brief The source node of the arc. 329 /// 330 /// Returns the source node of the given arc. 331 Node source(Arc) const { return INVALID; } 332 333 /// \brief The target node of the arc. 334 /// 335 /// Returns the target node of the given arc. 343 336 Node target(Arc) const { return INVALID; } 344 ///Gives back the source node of an arc. 345 346 ///Gives back the source node of an arc. 347 /// 348 Node source(Arc) const { return INVALID; } 349 350 /// \brief Returns the ID of the node. 337 338 /// \brief The ID of the node. 339 /// 340 /// Returns the ID of the given node. 351 341 int id(Node) const { return -1; } 352 342 353 /// \brief Returns the ID of the arc. 343 /// \brief The ID of the arc. 344 /// 345 /// Returns the ID of the given arc. 354 346 int id(Arc) const { return -1; } 355 347 356 /// \brief Returns the node with the given ID. 357 /// 358 /// \pre The argument should be a valid node ID in the graph. 348 /// \brief The node with the given ID. 349 /// 350 /// Returns the node with the given ID. 351 /// \pre The argument should be a valid node ID in the digraph. 359 352 Node nodeFromId(int) const { return INVALID; } 360 353 361 /// \brief Returns the arc with the given ID. 362 /// 363 /// \pre The argument should be a valid arc ID in the graph. 354 /// \brief The arc with the given ID. 355 /// 356 /// Returns the arc with the given ID. 357 /// \pre The argument should be a valid arc ID in the digraph. 364 358 Arc arcFromId(int) const { return INVALID; } 365 359 366 /// \brief Returns an upper bound on the node IDs. 360 /// \brief An upper bound on the node IDs. 361 /// 362 /// Returns an upper bound on the node IDs. 367 363 int maxNodeId() const { return -1; } 368 364 369 /// \brief Returns an upper bound on the arc IDs. 365 /// \brief An upper bound on the arc IDs. 366 /// 367 /// Returns an upper bound on the arc IDs. 370 368 int maxArcId() const { return -1; } 371 369 … … 393 391 int maxId(Arc) const { return -1; } 394 392 393 /// \brief The opposite node on the arc. 394 /// 395 /// Returns the opposite node on the given arc. 396 Node oppositeNode(Node, Arc) const { return INVALID; } 397 395 398 /// \brief The base node of the iterator. 396 399 /// 397 /// Gives back the base node of the iterator.398 /// It is always the target of the pointed arc.399 Node baseNode( const InArcIt&) const { return INVALID; }400 /// Returns the base node of the given outgoing arc iterator 401 /// (i.e. the source node of the corresponding arc). 402 Node baseNode(OutArcIt) const { return INVALID; } 400 403 401 404 /// \brief The running node of the iterator. 402 405 /// 403 /// Gives back the running node of the iterator.404 /// It is always the source of the pointed arc.405 Node runningNode( const InArcIt&) const { return INVALID; }406 /// Returns the running node of the given outgoing arc iterator 407 /// (i.e. the target node of the corresponding arc). 408 Node runningNode(OutArcIt) const { return INVALID; } 406 409 407 410 /// \brief The base node of the iterator. 408 411 /// 409 /// Gives back the base node of the iterator.410 /// It is always the source of the pointed arc.411 Node baseNode( const OutArcIt&) const { return INVALID; }412 /// Returns the base node of the given incomming arc iterator 413 /// (i.e. the target node of the corresponding arc). 414 Node baseNode(InArcIt) const { return INVALID; } 412 415 413 416 /// \brief The running node of the iterator. 414 417 /// 415 /// Gives back the running node of the iterator. 416 /// It is always the target of the pointed arc. 417 Node runningNode(const OutArcIt&) const { return INVALID; } 418 419 /// \brief The opposite node on the given arc. 420 /// 421 /// Gives back the opposite node on the given arc. 422 Node oppositeNode(const Node&, const Arc&) const { return INVALID; } 423 424 /// \brief Reference map of the nodes to type \c T. 425 /// 426 /// Reference map of the nodes to type \c T. 418 /// Returns the running node of the given incomming arc iterator 419 /// (i.e. the source node of the corresponding arc). 420 Node runningNode(InArcIt) const { return INVALID; } 421 422 /// \brief Standard graph map type for the nodes. 423 /// 424 /// Standard graph map type for the nodes. 425 /// It conforms to the ReferenceMap concept. 427 426 template<class T> 428 427 class NodeMap : public ReferenceMap<Node, T, T&, const T&> { 429 428 public: 430 429 431 /// \e432 NodeMap(const Digraph&) { }433 /// \e430 /// Constructor 431 explicit NodeMap(const Digraph&) { } 432 /// Constructor with given initial value 434 433 NodeMap(const Digraph&, T) { } 435 434 … … 446 445 }; 447 446 448 /// \brief Reference map of the arcs to type \c T. 449 /// 450 /// Reference map of the arcs to type \c T. 447 /// \brief Standard graph map type for the arcs. 448 /// 449 /// Standard graph map type for the arcs. 450 /// It conforms to the ReferenceMap concept. 451 451 template<class T> 452 452 class ArcMap : public ReferenceMap<Arc, T, T&, const T&> { 453 453 public: 454 454 455 /// \e456 ArcMap(const Digraph&) { }457 /// \e455 /// Constructor 456 explicit ArcMap(const Digraph&) { } 457 /// Constructor with given initial value 458 458 ArcMap(const Digraph&, T) { } 459 459 460 private: 460 461 ///Copy constructor -
lemon/concepts/graph.h
r704 r781 19 19 ///\ingroup graph_concepts 20 20 ///\file 21 ///\brief The concept of Undirected Graphs.21 ///\brief The concept of undirected graphs. 22 22 23 23 #ifndef LEMON_CONCEPTS_GRAPH_H … … 25 25 26 26 #include <lemon/concepts/graph_components.h> 27 #include <lemon/concepts/maps.h> 28 #include <lemon/concept_check.h> 27 29 #include <lemon/core.h> 28 30 … … 32 34 /// \ingroup graph_concepts 33 35 /// 34 /// \brief Class describing the concept of Undirected Graphs.36 /// \brief Class describing the concept of undirected graphs. 35 37 /// 36 /// This class describes the common interface of all Undirected37 /// Graphs.38 /// This class describes the common interface of all undirected 39 /// graphs. 38 40 /// 39 /// As all concept describing classes it provides onlyinterface40 /// without any sensible implementation. So any algorithm for41 /// undirected graph should compile with this class, but it will not41 /// Like all concept classes, it only provides an interface 42 /// without any sensible implementation. So any general algorithm for 43 /// undirected graphs should compile with this class, but it will not 42 44 /// run properly, of course. 45 /// An actual graph implementation like \ref ListGraph or 46 /// \ref SmartGraph may have additional functionality. 43 47 /// 44 /// The LEMON undirected graphs also fulfill the concept of 45 /// directed graphs (\ref lemon::concepts::Digraph "Digraph 46 /// Concept"). Each edges can be seen as two opposite 47 /// directed arc and consequently the undirected graph can be 48 /// seen as the direceted graph of these directed arcs. The 49 /// Graph has the Edge inner class for the edges and 50 /// the Arc type for the directed arcs. The Arc type is 51 /// convertible to Edge or inherited from it so from a directed 52 /// arc we can get the represented edge. 48 /// The undirected graphs also fulfill the concept of \ref Digraph 49 /// "directed graphs", since each edge can also be regarded as two 50 /// oppositely directed arcs. 51 /// Undirected graphs provide an Edge type for the undirected edges and 52 /// an Arc type for the directed arcs. The Arc type is convertible to 53 /// Edge or inherited from it, i.e. the corresponding edge can be 54 /// obtained from an arc. 55 /// EdgeIt and EdgeMap classes can be used for the edges, while ArcIt 56 /// and ArcMap classes can be used for the arcs (just like in digraphs). 57 /// Both InArcIt and OutArcIt iterates on the same edges but with 58 /// opposite direction. IncEdgeIt also iterates on the same edges 59 /// as OutArcIt and InArcIt, but it is not convertible to Arc, 60 /// only to Edge. 53 61 /// 54 /// In the sense of the LEMON each edge has a default 55 /// direction (it should be in every computer implementation, 56 /// because the order of edge's nodes defines an 57 /// orientation). With the default orientation we can define that 58 /// the directed arc is forward or backward directed. With the \c 59 /// direction() and \c direct() function we can get the direction 60 /// of the directed arc and we can direct an edge. 62 /// In LEMON, each undirected edge has an inherent orientation. 63 /// Thus it can defined if an arc is forward or backward oriented in 64 /// an undirected graph with respect to this default oriantation of 65 /// the represented edge. 66 /// With the direction() and direct() functions the direction 67 /// of an arc can be obtained and set, respectively. 61 68 /// 62 /// The EdgeIt is an iterator for the edges. We can use 63 /// the EdgeMap to map values for the edges. The InArcIt and 64 /// OutArcIt iterates on the same edges but with opposite 65 /// direction. The IncEdgeIt iterates also on the same edges 66 /// as the OutArcIt and InArcIt but it is not convertible to Arc just 67 /// to Edge. 69 /// Only nodes and edges can be added to or removed from an undirected 70 /// graph and the corresponding arcs are added or removed automatically. 71 /// 72 /// \sa Digraph 68 73 class Graph { 74 private: 75 /// Graphs are \e not copy constructible. Use DigraphCopy instead. 76 Graph(const Graph&) {} 77 /// \brief Assignment of a graph to another one is \e not allowed. 78 /// Use DigraphCopy instead. 79 void operator=(const Graph&) {} 80 69 81 public: 70 /// \brief The undirected graph should be tagged by the 71 /// UndirectedTag. 72 /// 73 /// The undirected graph should be tagged by the UndirectedTag. This 74 /// tag helps the enable_if technics to make compile time 82 /// Default constructor. 83 Graph() {} 84 85 /// \brief Undirected graphs should be tagged with \c UndirectedTag. 86 /// 87 /// Undirected graphs should be tagged with \c UndirectedTag. 88 /// 89 /// This tag helps the \c enable_if technics to make compile time 75 90 /// specializations for undirected graphs. 76 91 typedef True UndirectedTag; 77 92 78 /// \brief The base type of node iterators, 79 /// or in other words, the trivial node iterator. 80 /// 81 /// This is the base type of each node iterator, 82 /// thus each kind of node iterator converts to this. 83 /// More precisely each kind of node iterator should be inherited 84 /// from the trivial node iterator. 93 /// The node type of the graph 94 95 /// This class identifies a node of the graph. It also serves 96 /// as a base class of the node iterators, 97 /// thus they convert to this type. 85 98 class Node { 86 99 public: 87 100 /// Default constructor 88 101 89 /// @warning The default constructor sets the iterator90 /// to an undefined value.102 /// Default constructor. 103 /// \warning It sets the object to an undefined value. 91 104 Node() { } 92 105 /// Copy constructor. … … 96 109 Node(const Node&) { } 97 110 98 /// Invalid constructor \& conversion.99 100 /// This constructor initializes the iteratorto be invalid.111 /// %Invalid constructor \& conversion. 112 113 /// Initializes the object to be invalid. 101 114 /// \sa Invalid for more details. 102 115 Node(Invalid) { } 103 116 /// Equality operator 104 117 118 /// Equality operator. 119 /// 105 120 /// Two iterators are equal if and only if they point to the 106 /// same object or both are invalid.121 /// same object or both are \c INVALID. 107 122 bool operator==(Node) const { return true; } 108 123 109 124 /// Inequality operator 110 125 111 /// \sa operator==(Node n) 112 /// 126 /// Inequality operator. 113 127 bool operator!=(Node) const { return true; } 114 128 115 129 /// Artificial ordering operator. 116 130 117 /// To allow the use of graph descriptors as key type in std::map or 118 /// similar associative container we require this. 119 /// 120 /// \note This operator only have to define some strict ordering of 131 /// Artificial ordering operator. 132 /// 133 /// \note This operator only has to define some strict ordering of 121 134 /// the items; this order has nothing to do with the iteration 122 135 /// ordering of the items. … … 125 138 }; 126 139 127 /// This iterator goes through each node.128 129 /// This iterator goes through each node .140 /// Iterator class for the nodes. 141 142 /// This iterator goes through each node of the graph. 130 143 /// Its usage is quite simple, for example you can count the number 131 /// of nodes in graph \c g of type \cGraph like this:144 /// of nodes in a graph \c g of type \c %Graph like this: 132 145 ///\code 133 146 /// int count=0; … … 138 151 /// Default constructor 139 152 140 /// @warning The default constructor sets the iterator141 /// to an undefined value.153 /// Default constructor. 154 /// \warning It sets the iterator to an undefined value. 142 155 NodeIt() { } 143 156 /// Copy constructor. … … 146 159 /// 147 160 NodeIt(const NodeIt& n) : Node(n) { } 148 /// Invalid constructor \& conversion.149 150 /// Initialize the iterator to be invalid.161 /// %Invalid constructor \& conversion. 162 163 /// Initializes the iterator to be invalid. 151 164 /// \sa Invalid for more details. 152 165 NodeIt(Invalid) { } 153 166 /// Sets the iterator to the first node. 154 167 155 /// Sets the iterator to the first node of \c g. 156 /// 157 NodeIt(const Graph&) { } 158 /// Node -> NodeIt conversion. 159 160 /// Sets the iterator to the node of \c the graph pointed by 161 /// the trivial iterator. 162 /// This feature necessitates that each time we 163 /// iterate the arc-set, the iteration order is the same. 168 /// Sets the iterator to the first node of the given digraph. 169 /// 170 explicit NodeIt(const Graph&) { } 171 /// Sets the iterator to the given node. 172 173 /// Sets the iterator to the given node of the given digraph. 174 /// 164 175 NodeIt(const Graph&, const Node&) { } 165 176 /// Next node. … … 171 182 172 183 173 /// The base type of the edge iterators. 174 175 /// The base type of the edge iterators. 176 /// 184 /// The edge type of the graph 185 186 /// This class identifies an edge of the graph. It also serves 187 /// as a base class of the edge iterators, 188 /// thus they will convert to this type. 177 189 class Edge { 178 190 public: 179 191 /// Default constructor 180 192 181 /// @warning The default constructor sets the iterator182 /// to an undefined value.193 /// Default constructor. 194 /// \warning It sets the object to an undefined value. 183 195 Edge() { } 184 196 /// Copy constructor. … … 187 199 /// 188 200 Edge(const Edge&) { } 189 /// Initialize the iterator to be invalid.190 191 /// Initialize the iteratorto be invalid.192 /// 201 /// %Invalid constructor \& conversion. 202 203 /// Initializes the object to be invalid. 204 /// \sa Invalid for more details. 193 205 Edge(Invalid) { } 194 206 /// Equality operator 195 207 208 /// Equality operator. 209 /// 196 210 /// Two iterators are equal if and only if they point to the 197 /// same object or both are invalid.211 /// same object or both are \c INVALID. 198 212 bool operator==(Edge) const { return true; } 199 213 /// Inequality operator 200 214 201 /// \sa operator==(Edge n) 202 /// 215 /// Inequality operator. 203 216 bool operator!=(Edge) const { return true; } 204 217 205 218 /// Artificial ordering operator. 206 219 207 /// To allow the use of graph descriptors as key type in std::map or 208 /// similar associative container we require this. 209 /// 210 /// \note This operator only have to define some strict ordering of 211 /// the items; this order has nothing to do with the iteration 212 /// ordering of the items. 220 /// Artificial ordering operator. 221 /// 222 /// \note This operator only has to define some strict ordering of 223 /// the edges; this order has nothing to do with the iteration 224 /// ordering of the edges. 213 225 bool operator<(Edge) const { return false; } 214 226 }; 215 227 216 /// This iterator goes through each edge.217 218 /// This iterator goes through each edge of agraph.228 /// Iterator class for the edges. 229 230 /// This iterator goes through each edge of the graph. 219 231 /// Its usage is quite simple, for example you can count the number 220 /// of edges in a graph \c g of type \c Graph as follows:232 /// of edges in a graph \c g of type \c %Graph as follows: 221 233 ///\code 222 234 /// int count=0; … … 227 239 /// Default constructor 228 240 229 /// @warning The default constructor sets the iterator230 /// to an undefined value.241 /// Default constructor. 242 /// \warning It sets the iterator to an undefined value. 231 243 EdgeIt() { } 232 244 /// Copy constructor. … … 235 247 /// 236 248 EdgeIt(const EdgeIt& e) : Edge(e) { } 237 /// Initialize the iterator to be invalid.238 239 /// Initialize the iterator to be invalid.240 /// 249 /// %Invalid constructor \& conversion. 250 251 /// Initializes the iterator to be invalid. 252 /// \sa Invalid for more details. 241 253 EdgeIt(Invalid) { } 242 /// This constructor sets the iterator to the first edge. 243 244 /// This constructor sets the iterator to the first edge. 245 EdgeIt(const Graph&) { } 246 /// Edge -> EdgeIt conversion 247 248 /// Sets the iterator to the value of the trivial iterator. 249 /// This feature necessitates that each time we 250 /// iterate the edge-set, the iteration order is the 251 /// same. 254 /// Sets the iterator to the first edge. 255 256 /// Sets the iterator to the first edge of the given graph. 257 /// 258 explicit EdgeIt(const Graph&) { } 259 /// Sets the iterator to the given edge. 260 261 /// Sets the iterator to the given edge of the given graph. 262 /// 252 263 EdgeIt(const Graph&, const Edge&) { } 253 264 /// Next edge 254 265 255 266 /// Assign the iterator to the next edge. 267 /// 256 268 EdgeIt& operator++() { return *this; } 257 269 }; 258 270 259 /// \brief This iterator goes trough the incident undirected 260 /// arcs of a node. 261 /// 262 /// This iterator goes trough the incident edges 263 /// of a certain node of a graph. You should assume that the 264 /// loop arcs will be iterated twice. 265 /// 271 /// Iterator class for the incident edges of a node. 272 273 /// This iterator goes trough the incident undirected edges 274 /// of a certain node of a graph. 266 275 /// Its usage is quite simple, for example you can compute the 267 /// degree (i.e. count the number of incident arcsof a node \c n268 /// in graph \c g of type \cGraph as follows.276 /// degree (i.e. the number of incident edges) of a node \c n 277 /// in a graph \c g of type \c %Graph as follows. 269 278 /// 270 279 ///\code … … 272 281 /// for(Graph::IncEdgeIt e(g, n); e!=INVALID; ++e) ++count; 273 282 ///\endcode 283 /// 284 /// \warning Loop edges will be iterated twice. 274 285 class IncEdgeIt : public Edge { 275 286 public: 276 287 /// Default constructor 277 288 278 /// @warning The default constructor sets the iterator279 /// to an undefined value.289 /// Default constructor. 290 /// \warning It sets the iterator to an undefined value. 280 291 IncEdgeIt() { } 281 292 /// Copy constructor. … … 284 295 /// 285 296 IncEdgeIt(const IncEdgeIt& e) : Edge(e) { } 286 /// Initialize the iterator to be invalid.287 288 /// Initialize the iterator to be invalid.289 /// 297 /// %Invalid constructor \& conversion. 298 299 /// Initializes the iterator to be invalid. 300 /// \sa Invalid for more details. 290 301 IncEdgeIt(Invalid) { } 291 /// This constructor sets the iterator to first incident arc.292 293 /// This constructor set the iterator to the first incident arc of294 /// the node.302 /// Sets the iterator to the first incident edge. 303 304 /// Sets the iterator to the first incident edge of the given node. 305 /// 295 306 IncEdgeIt(const Graph&, const Node&) { } 296 /// Edge -> IncEdgeIt conversion 297 298 /// Sets the iterator to the value of the trivial iterator \c e. 299 /// This feature necessitates that each time we 300 /// iterate the arc-set, the iteration order is the same. 307 /// Sets the iterator to the given edge. 308 309 /// Sets the iterator to the given edge of the given graph. 310 /// 301 311 IncEdgeIt(const Graph&, const Edge&) { } 302 /// Next incident arc303 304 /// Assign the iterator to the next incident arc312 /// Next incident edge 313 314 /// Assign the iterator to the next incident edge 305 315 /// of the corresponding node. 306 316 IncEdgeIt& operator++() { return *this; } 307 317 }; 308 318 309 /// The directed arc type.310 311 /// Th e directed arc type. It can be converted to the312 /// edge or it should be inherited from the undirected313 /// edge.319 /// The arc type of the graph 320 321 /// This class identifies a directed arc of the graph. It also serves 322 /// as a base class of the arc iterators, 323 /// thus they will convert to this type. 314 324 class Arc { 315 325 public: 316 326 /// Default constructor 317 327 318 /// @warning The default constructor sets the iterator319 /// to an undefined value.328 /// Default constructor. 329 /// \warning It sets the object to an undefined value. 320 330 Arc() { } 321 331 /// Copy constructor. … … 324 334 /// 325 335 Arc(const Arc&) { } 326 /// Initialize the iterator to be invalid.327 328 /// Initialize the iteratorto be invalid.329 /// 336 /// %Invalid constructor \& conversion. 337 338 /// Initializes the object to be invalid. 339 /// \sa Invalid for more details. 330 340 Arc(Invalid) { } 331 341 /// Equality operator 332 342 343 /// Equality operator. 344 /// 333 345 /// Two iterators are equal if and only if they point to the 334 /// same object or both are invalid.346 /// same object or both are \c INVALID. 335 347 bool operator==(Arc) const { return true; } 336 348 /// Inequality operator 337 349 338 /// \sa operator==(Arc n) 339 /// 350 /// Inequality operator. 340 351 bool operator!=(Arc) const { return true; } 341 352 342 353 /// Artificial ordering operator. 343 354 344 /// To allow the use of graph descriptors as key type in std::map or 345 /// similar associative container we require this. 346 /// 347 /// \note This operator only have to define some strict ordering of 348 /// the items; this order has nothing to do with the iteration 349 /// ordering of the items. 355 /// Artificial ordering operator. 356 /// 357 /// \note This operator only has to define some strict ordering of 358 /// the arcs; this order has nothing to do with the iteration 359 /// ordering of the arcs. 350 360 bool operator<(Arc) const { return false; } 351 361 352 /// Converison to Edge 362 /// Converison to \c Edge 363 364 /// Converison to \c Edge. 365 /// 353 366 operator Edge() const { return Edge(); } 354 367 }; 355 /// This iterator goes through each directed arc. 356 357 /// This iterator goes through each arc of a graph. 368 369 /// Iterator class for the arcs. 370 371 /// This iterator goes through each directed arc of the graph. 358 372 /// Its usage is quite simple, for example you can count the number 359 /// of arcs in a graph \c g of type \c Graph as follows:373 /// of arcs in a graph \c g of type \c %Graph as follows: 360 374 ///\code 361 375 /// int count=0; 362 /// for(Graph::ArcIt e(g); e!=INVALID; ++e) ++count;376 /// for(Graph::ArcIt a(g); a!=INVALID; ++a) ++count; 363 377 ///\endcode 364 378 class ArcIt : public Arc { … … 366 380 /// Default constructor 367 381 368 /// @warning The default constructor sets the iterator369 /// to an undefined value.382 /// Default constructor. 383 /// \warning It sets the iterator to an undefined value. 370 384 ArcIt() { } 371 385 /// Copy constructor. … … 374 388 /// 375 389 ArcIt(const ArcIt& e) : Arc(e) { } 376 /// Initialize the iterator to be invalid.377 378 /// Initialize the iterator to be invalid.379 /// 390 /// %Invalid constructor \& conversion. 391 392 /// Initializes the iterator to be invalid. 393 /// \sa Invalid for more details. 380 394 ArcIt(Invalid) { } 381 /// This constructor sets the iterator to the first arc. 382 383 /// This constructor sets the iterator to the first arc of \c g. 384 ///@param g the graph 385 ArcIt(const Graph &g) { ignore_unused_variable_warning(g); } 386 /// Arc -> ArcIt conversion 387 388 /// Sets the iterator to the value of the trivial iterator \c e. 389 /// This feature necessitates that each time we 390 /// iterate the arc-set, the iteration order is the same. 395 /// Sets the iterator to the first arc. 396 397 /// Sets the iterator to the first arc of the given graph. 398 /// 399 explicit ArcIt(const Graph &g) { ignore_unused_variable_warning(g); } 400 /// Sets the iterator to the given arc. 401 402 /// Sets the iterator to the given arc of the given graph. 403 /// 391 404 ArcIt(const Graph&, const Arc&) { } 392 /// Next arc405 /// Next arc 393 406 394 407 /// Assign the iterator to the next arc. 408 /// 395 409 ArcIt& operator++() { return *this; } 396 410 }; 397 411 398 /// This iterator goes trough the outgoing directedarcs of a node.399 400 /// This iterator goes trough the \e outgoing arcs of a certain node401 /// of a graph.412 /// Iterator class for the outgoing arcs of a node. 413 414 /// This iterator goes trough the \e outgoing directed arcs of a 415 /// certain node of a graph. 402 416 /// Its usage is quite simple, for example you can count the number 403 417 /// of outgoing arcs of a node \c n 404 /// in graph \c g of type \cGraph as follows.418 /// in a graph \c g of type \c %Graph as follows. 405 419 ///\code 406 420 /// int count=0; 407 /// for ( Graph::OutArcIt e(g, n); e!=INVALID; ++e) ++count;421 /// for (Digraph::OutArcIt a(g, n); a!=INVALID; ++a) ++count; 408 422 ///\endcode 409 410 423 class OutArcIt : public Arc { 411 424 public: 412 425 /// Default constructor 413 426 414 /// @warning The default constructor sets the iterator415 /// to an undefined value.427 /// Default constructor. 428 /// \warning It sets the iterator to an undefined value. 416 429 OutArcIt() { } 417 430 /// Copy constructor. … … 420 433 /// 421 434 OutArcIt(const OutArcIt& e) : Arc(e) { } 422 /// Initialize the iterator to be invalid.423 424 /// Initialize the iterator to be invalid.425 /// 435 /// %Invalid constructor \& conversion. 436 437 /// Initializes the iterator to be invalid. 438 /// \sa Invalid for more details. 426 439 OutArcIt(Invalid) { } 427 /// This constructor sets the iterator to the first outgoing arc. 428 429 /// This constructor sets the iterator to the first outgoing arc of 430 /// the node. 431 ///@param n the node 432 ///@param g the graph 440 /// Sets the iterator to the first outgoing arc. 441 442 /// Sets the iterator to the first outgoing arc of the given node. 443 /// 433 444 OutArcIt(const Graph& n, const Node& g) { 434 445 ignore_unused_variable_warning(n); 435 446 ignore_unused_variable_warning(g); 436 447 } 437 /// Arc -> OutArcIt conversion 438 439 /// Sets the iterator to the value of the trivial iterator. 440 /// This feature necessitates that each time we 441 /// iterate the arc-set, the iteration order is the same. 448 /// Sets the iterator to the given arc. 449 450 /// Sets the iterator to the given arc of the given graph. 451 /// 442 452 OutArcIt(const Graph&, const Arc&) { } 443 /// Next outgoing arc453 /// Next outgoing arc 444 454 445 455 /// Assign the iterator to the next … … 448 458 }; 449 459 450 /// This iterator goes trough the incoming directedarcs of a node.451 452 /// This iterator goes trough the \e incoming arcs of a certain node453 /// of a graph.460 /// Iterator class for the incoming arcs of a node. 461 462 /// This iterator goes trough the \e incoming directed arcs of a 463 /// certain node of a graph. 454 464 /// Its usage is quite simple, for example you can count the number 455 /// of outgoing arcs of a node \c n456 /// in graph \c g of type \cGraph as follows.465 /// of incoming arcs of a node \c n 466 /// in a graph \c g of type \c %Graph as follows. 457 467 ///\code 458 468 /// int count=0; 459 /// for (Graph::InArcIt e(g, n); e!=INVALID; ++e) ++count;469 /// for (Digraph::InArcIt a(g, n); a!=INVALID; ++a) ++count; 460 470 ///\endcode 461 462 471 class InArcIt : public Arc { 463 472 public: 464 473 /// Default constructor 465 474 466 /// @warning The default constructor sets the iterator467 /// to an undefined value.475 /// Default constructor. 476 /// \warning It sets the iterator to an undefined value. 468 477 InArcIt() { } 469 478 /// Copy constructor. … … 472 481 /// 473 482 InArcIt(const InArcIt& e) : Arc(e) { } 474 /// Initialize the iterator to be invalid.475 476 /// Initialize the iterator to be invalid.477 /// 483 /// %Invalid constructor \& conversion. 484 485 /// Initializes the iterator to be invalid. 486 /// \sa Invalid for more details. 478 487 InArcIt(Invalid) { } 479 /// This constructor sets the iterator to first incoming arc. 480 481 /// This constructor set the iterator to the first incoming arc of 482 /// the node. 483 ///@param n the node 484 ///@param g the graph 488 /// Sets the iterator to the first incoming arc. 489 490 /// Sets the iterator to the first incoming arc of the given node. 491 /// 485 492 InArcIt(const Graph& g, const Node& n) { 486 493 ignore_unused_variable_warning(n); 487 494 ignore_unused_variable_warning(g); 488 495 } 489 /// Arc -> InArcIt conversion 490 491 /// Sets the iterator to the value of the trivial iterator \c e. 492 /// This feature necessitates that each time we 493 /// iterate the arc-set, the iteration order is the same. 496 /// Sets the iterator to the given arc. 497 498 /// Sets the iterator to the given arc of the given graph. 499 /// 494 500 InArcIt(const Graph&, const Arc&) { } 495 501 /// Next incoming arc 496 502 497 /// Assign the iterator to the next inarc of the corresponding node.498 /// 503 /// Assign the iterator to the next 504 /// incoming arc of the corresponding node. 499 505 InArcIt& operator++() { return *this; } 500 506 }; 501 507 502 /// \brief Reference map of the nodes to type \c T. 503 /// 504 /// Reference map of the nodes to type \c T. 508 /// \brief Standard graph map type for the nodes. 509 /// 510 /// Standard graph map type for the nodes. 511 /// It conforms to the ReferenceMap concept. 505 512 template<class T> 506 513 class NodeMap : public ReferenceMap<Node, T, T&, const T&> … … 508 515 public: 509 516 510 /// \e511 NodeMap(const Graph&) { }512 /// \e517 /// Constructor 518 explicit NodeMap(const Graph&) { } 519 /// Constructor with given initial value 513 520 NodeMap(const Graph&, T) { } 514 521 … … 525 532 }; 526 533 527 /// \brief Reference map of the arcs to type \c T. 528 /// 529 /// Reference map of the arcs to type \c T. 534 /// \brief Standard graph map type for the arcs. 535 /// 536 /// Standard graph map type for the arcs. 537 /// It conforms to the ReferenceMap concept. 530 538 template<class T> 531 539 class ArcMap : public ReferenceMap<Arc, T, T&, const T&> … … 533 541 public: 534 542 535 /// \e536 ArcMap(const Graph&) { }537 /// \e543 /// Constructor 544 explicit ArcMap(const Graph&) { } 545 /// Constructor with given initial value 538 546 ArcMap(const Graph&, T) { } 547 539 548 private: 540 549 ///Copy constructor … … 549 558 }; 550 559 551 /// Reference map of the edges to type \c T. 552 553 /// Reference map of the edges to type \c T. 560 /// \brief Standard graph map type for the edges. 561 /// 562 /// Standard graph map type for the edges. 563 /// It conforms to the ReferenceMap concept. 554 564 template<class T> 555 565 class EdgeMap : public ReferenceMap<Edge, T, T&, const T&> … … 557 567 public: 558 568 559 /// \e560 EdgeMap(const Graph&) { }561 /// \e569 /// Constructor 570 explicit EdgeMap(const Graph&) { } 571 /// Constructor with given initial value 562 572 EdgeMap(const Graph&, T) { } 573 563 574 private: 564 575 ///Copy constructor … … 573 584 }; 574 585 575 /// \brief Direct the given edge. 576 /// 577 /// Direct the given edge. The returned arc source 578 /// will be the given node. 579 Arc direct(const Edge&, const Node&) const { 580 return INVALID; 581 } 582 583 /// \brief Direct the given edge. 584 /// 585 /// Direct the given edge. The returned arc 586 /// represents the given edge and the direction comes 587 /// from the bool parameter. The source of the edge and 588 /// the directed arc is the same when the given bool is true. 589 Arc direct(const Edge&, bool) const { 590 return INVALID; 591 } 592 593 /// \brief Returns true if the arc has default orientation. 594 /// 595 /// Returns whether the given directed arc is same orientation as 596 /// the corresponding edge's default orientation. 597 bool direction(Arc) const { return true; } 598 599 /// \brief Returns the opposite directed arc. 600 /// 601 /// Returns the opposite directed arc. 602 Arc oppositeArc(Arc) const { return INVALID; } 603 604 /// \brief Opposite node on an arc 605 /// 606 /// \return The opposite of the given node on the given edge. 607 Node oppositeNode(Node, Edge) const { return INVALID; } 608 609 /// \brief First node of the edge. 610 /// 611 /// \return The first node of the given edge. 612 /// 613 /// Naturally edges don't have direction and thus 614 /// don't have source and target node. However we use \c u() and \c v() 615 /// methods to query the two nodes of the arc. The direction of the 616 /// arc which arises this way is called the inherent direction of the 617 /// edge, and is used to define the "default" direction 618 /// of the directed versions of the arcs. 586 /// \brief The first node of the edge. 587 /// 588 /// Returns the first node of the given edge. 589 /// 590 /// Edges don't have source and target nodes, however methods 591 /// u() and v() are used to query the two end-nodes of an edge. 592 /// The orientation of an edge that arises this way is called 593 /// the inherent direction, it is used to define the default 594 /// direction for the corresponding arcs. 619 595 /// \sa v() 620 596 /// \sa direction() 621 597 Node u(Edge) const { return INVALID; } 622 598 623 /// \brief Second node of the edge. 624 /// 625 /// \return The second node of the given edge. 626 /// 627 /// Naturally edges don't have direction and thus 628 /// don't have source and target node. However we use \c u() and \c v() 629 /// methods to query the two nodes of the arc. The direction of the 630 /// arc which arises this way is called the inherent direction of the 631 /// edge, and is used to define the "default" direction 632 /// of the directed versions of the arcs. 599 /// \brief The second node of the edge. 600 /// 601 /// Returns the second node of the given edge. 602 /// 603 /// Edges don't have source and target nodes, however methods 604 /// u() and v() are used to query the two end-nodes of an edge. 605 /// The orientation of an edge that arises this way is called 606 /// the inherent direction, it is used to define the default 607 /// direction for the corresponding arcs. 633 608 /// \sa u() 634 609 /// \sa direction() 635 610 Node v(Edge) const { return INVALID; } 636 611 637 /// \brief Source node of the directed arc. 612 /// \brief The source node of the arc. 613 /// 614 /// Returns the source node of the given arc. 638 615 Node source(Arc) const { return INVALID; } 639 616 640 /// \brief Target node of the directed arc. 617 /// \brief The target node of the arc. 618 /// 619 /// Returns the target node of the given arc. 641 620 Node target(Arc) const { return INVALID; } 642 621 643 /// \brief Returns the id of the node. 622 /// \brief The ID of the node. 623 /// 624 /// Returns the ID of the given node. 644 625 int id(Node) const { return -1; } 645 626 646 /// \brief Returns the id of the edge. 627 /// \brief The ID of the edge. 628 /// 629 /// Returns the ID of the given edge. 647 630 int id(Edge) const { return -1; } 648 631 649 /// \brief Returns the id of the arc. 632 /// \brief The ID of the arc. 633 /// 634 /// Returns the ID of the given arc. 650 635 int id(Arc) const { return -1; } 651 636 652 /// \brief Returns the node with the given id. 653 /// 654 /// \pre The argument should be a valid node id in the graph. 637 /// \brief The node with the given ID. 638 /// 639 /// Returns the node with the given ID. 640 /// \pre The argument should be a valid node ID in the graph. 655 641 Node nodeFromId(int) const { return INVALID; } 656 642 657 /// \brief Returns the edge with the given id. 658 /// 659 /// \pre The argument should be a valid edge id in the graph. 643 /// \brief The edge with the given ID. 644 /// 645 /// Returns the edge with the given ID. 646 /// \pre The argument should be a valid edge ID in the graph. 660 647 Edge edgeFromId(int) const { return INVALID; } 661 648 662 /// \brief Returns the arc with the given id. 663 /// 664 /// \pre The argument should be a valid arc id in the graph. 649 /// \brief The arc with the given ID. 650 /// 651 /// Returns the arc with the given ID. 652 /// \pre The argument should be a valid arc ID in the graph. 665 653 Arc arcFromId(int) const { return INVALID; } 666 654 667 /// \brief Returns an upper bound on the node IDs. 655 /// \brief An upper bound on the node IDs. 656 /// 657 /// Returns an upper bound on the node IDs. 668 658 int maxNodeId() const { return -1; } 669 659 670 /// \brief Returns an upper bound on the edge IDs. 660 /// \brief An upper bound on the edge IDs. 661 /// 662 /// Returns an upper bound on the edge IDs. 671 663 int maxEdgeId() const { return -1; } 672 664 673 /// \brief Returns an upper bound on the arc IDs. 665 /// \brief An upper bound on the arc IDs. 666 /// 667 /// Returns an upper bound on the arc IDs. 674 668 int maxArcId() const { return -1; } 669 670 /// \brief The direction of the arc. 671 /// 672 /// Returns \c true if the direction of the given arc is the same as 673 /// the inherent orientation of the represented edge. 674 bool direction(Arc) const { return true; } 675 676 /// \brief Direct the edge. 677 /// 678 /// Direct the given edge. The returned arc 679 /// represents the given edge and its direction comes 680 /// from the bool parameter. If it is \c true, then the direction 681 /// of the arc is the same as the inherent orientation of the edge. 682 Arc direct(Edge, bool) const { 683 return INVALID; 684 } 685 686 /// \brief Direct the edge. 687 /// 688 /// Direct the given edge. The returned arc represents the given 689 /// edge and its source node is the given node. 690 Arc direct(Edge, Node) const { 691 return INVALID; 692 } 693 694 /// \brief The oppositely directed arc. 695 /// 696 /// Returns the oppositely directed arc representing the same edge. 697 Arc oppositeArc(Arc) const { return INVALID; } 698 699 /// \brief The opposite node on the edge. 700 /// 701 /// Returns the opposite node on the given edge. 702 Node oppositeNode(Node, Edge) const { return INVALID; } 675 703 676 704 void first(Node&) const {} … … 706 734 int maxId(Arc) const { return -1; } 707 735 708 /// \brief Base node of the iterator 709 /// 710 /// Returns the base node (the source in this case) of the iterator 711 Node baseNode(OutArcIt e) const { 712 return source(e); 713 } 714 /// \brief Running node of the iterator 715 /// 716 /// Returns the running node (the target in this case) of the 717 /// iterator 718 Node runningNode(OutArcIt e) const { 719 return target(e); 720 } 721 722 /// \brief Base node of the iterator 723 /// 724 /// Returns the base node (the target in this case) of the iterator 725 Node baseNode(InArcIt e) const { 726 return target(e); 727 } 728 /// \brief Running node of the iterator 729 /// 730 /// Returns the running node (the source in this case) of the 731 /// iterator 732 Node runningNode(InArcIt e) const { 733 return source(e); 734 } 735 736 /// \brief Base node of the iterator 737 /// 738 /// Returns the base node of the iterator 739 Node baseNode(IncEdgeIt) const { 740 return INVALID; 741 } 742 743 /// \brief Running node of the iterator 744 /// 745 /// Returns the running node of the iterator 746 Node runningNode(IncEdgeIt) const { 747 return INVALID; 748 } 736 /// \brief The base node of the iterator. 737 /// 738 /// Returns the base node of the given incident edge iterator. 739 Node baseNode(IncEdgeIt) const { return INVALID; } 740 741 /// \brief The running node of the iterator. 742 /// 743 /// Returns the running node of the given incident edge iterator. 744 Node runningNode(IncEdgeIt) const { return INVALID; } 745 746 /// \brief The base node of the iterator. 747 /// 748 /// Returns the base node of the given outgoing arc iterator 749 /// (i.e. the source node of the corresponding arc). 750 Node baseNode(OutArcIt) const { return INVALID; } 751 752 /// \brief The running node of the iterator. 753 /// 754 /// Returns the running node of the given outgoing arc iterator 755 /// (i.e. the target node of the corresponding arc). 756 Node runningNode(OutArcIt) const { return INVALID; } 757 758 /// \brief The base node of the iterator. 759 /// 760 /// Returns the base node of the given incomming arc iterator 761 /// (i.e. the target node of the corresponding arc). 762 Node baseNode(InArcIt) const { return INVALID; } 763 764 /// \brief The running node of the iterator. 765 /// 766 /// Returns the running node of the given incomming arc iterator 767 /// (i.e. the source node of the corresponding arc). 768 Node runningNode(InArcIt) const { return INVALID; } 749 769 750 770 template <typename _Graph> -
lemon/concepts/graph_components.h
r713 r781 93 93 /// associative containers (e.g. \c std::map). 94 94 /// 95 /// \note This operator only ha veto define some strict ordering of95 /// \note This operator only has to define some strict ordering of 96 96 /// the items; this order has nothing to do with the iteration 97 97 /// ordering of the items. -
lemon/concepts/heap.h
r631 r757 17 17 */ 18 18 19 #ifndef LEMON_CONCEPTS_HEAP_H 20 #define LEMON_CONCEPTS_HEAP_H 21 19 22 ///\ingroup concept 20 23 ///\file 21 24 ///\brief The concept of heaps. 22 25 23 #ifndef LEMON_CONCEPTS_HEAP_H24 #define LEMON_CONCEPTS_HEAP_H25 26 26 #include <lemon/core.h> 27 27 #include <lemon/concept_check.h> … … 36 36 /// \brief The heap concept. 37 37 /// 38 /// Concept class describing the main interface of heaps. A \e heap 39 /// is a data structure for storing items with specified values called 40 /// \e priorities in such a way that finding the item with minimum 41 /// priority is efficient. In a heap one can change the priority of an 42 /// item, add or erase an item, etc. 38 /// This concept class describes the main interface of heaps. 39 /// The various \ref heaps "heap structures" are efficient 40 /// implementations of the abstract data type \e priority \e queue. 41 /// They store items with specified values called \e priorities 42 /// in such a way that finding and removing the item with minimum 43 /// priority are efficient. The basic operations are adding and 44 /// erasing items, changing the priority of an item, etc. 43 45 /// 44 /// \tparam PR Type of the priority of the items. 45 /// \tparam IM A read and writable item map with int values, used 46 /// Heaps are crucial in several algorithms, such as Dijkstra and Prim. 47 /// Any class that conforms to this concept can be used easily in such 48 /// algorithms. 49 /// 50 /// \tparam PR Type of the priorities of the items. 51 /// \tparam IM A read-writable item map with \c int values, used 46 52 /// internally to handle the cross references. 47 /// \tparam C omp A functor class for the ordering ofthe priorities.53 /// \tparam CMP A functor class for comparing the priorities. 48 54 /// The default is \c std::less<PR>. 49 55 #ifdef DOXYGEN 50 template <typename PR, typename IM, typename C omp = std::less<PR>>56 template <typename PR, typename IM, typename CMP> 51 57 #else 52 template <typename PR, typename IM >58 template <typename PR, typename IM, typename CMP = std::less<PR> > 53 59 #endif 54 60 class Heap { … … 65 71 /// 66 72 /// Each item has a state associated to it. It can be "in heap", 67 /// "pre heap" or "post heap". The later two are indifferent 68 /// from the point of view of the heap, but may be useful for 69 /// the user. 73 /// "pre-heap" or "post-heap". The latter two are indifferent from the 74 /// heap's point of view, but may be useful to the user. 70 75 /// 71 76 /// The item-int map must be initialized in such way that it assigns … … 73 78 enum State { 74 79 IN_HEAP = 0, ///< = 0. The "in heap" state constant. 75 PRE_HEAP = -1, ///< = -1. The "pre 76 POST_HEAP = -2 ///< = -2. The "post 80 PRE_HEAP = -1, ///< = -1. The "pre-heap" state constant. 81 POST_HEAP = -2 ///< = -2. The "post-heap" state constant. 77 82 }; 78 83 79 /// \brief The constructor.80 /// 81 /// The constructor.84 /// \brief Constructor. 85 /// 86 /// Constructor. 82 87 /// \param map A map that assigns \c int values to keys of type 83 88 /// \c Item. It is used internally by the heap implementations to 84 89 /// handle the cross references. The assigned value must be 85 /// \c PRE_HEAP (<tt>-1</tt>) for e veryitem.90 /// \c PRE_HEAP (<tt>-1</tt>) for each item. 86 91 explicit Heap(ItemIntMap &map) {} 87 92 93 /// \brief Constructor. 94 /// 95 /// Constructor. 96 /// \param map A map that assigns \c int values to keys of type 97 /// \c Item. It is used internally by the heap implementations to 98 /// handle the cross references. The assigned value must be 99 /// \c PRE_HEAP (<tt>-1</tt>) for each item. 100 /// \param comp The function object used for comparing the priorities. 101 explicit Heap(ItemIntMap &map, const CMP &comp) {} 102 88 103 /// \brief The number of items stored in the heap. 89 104 /// 90 /// Returns the number of items stored in the heap.105 /// This function returns the number of items stored in the heap. 91 106 int size() const { return 0; } 92 107 93 /// \brief Check sif the heap is empty.94 /// 95 /// Returns \c true if the heap is empty.108 /// \brief Check if the heap is empty. 109 /// 110 /// This function returns \c true if the heap is empty. 96 111 bool empty() const { return false; } 97 112 98 /// \brief Makes the heap empty. 99 /// 100 /// Makes the heap empty. 101 void clear(); 102 103 /// \brief Inserts an item into the heap with the given priority. 104 /// 105 /// Inserts the given item into the heap with the given priority. 113 /// \brief Make the heap empty. 114 /// 115 /// This functon makes the heap empty. 116 /// It does not change the cross reference map. If you want to reuse 117 /// a heap that is not surely empty, you should first clear it and 118 /// then you should set the cross reference map to \c PRE_HEAP 119 /// for each item. 120 void clear() {} 121 122 /// \brief Insert an item into the heap with the given priority. 123 /// 124 /// This function inserts the given item into the heap with the 125 /// given priority. 106 126 /// \param i The item to insert. 107 127 /// \param p The priority of the item. 128 /// \pre \e i must not be stored in the heap. 108 129 void push(const Item &i, const Prio &p) {} 109 130 110 /// \brief Return sthe item having minimum priority.111 /// 112 /// Returns the item having minimum priority.131 /// \brief Return the item having minimum priority. 132 /// 133 /// This function returns the item having minimum priority. 113 134 /// \pre The heap must be non-empty. 114 135 Item top() const {} … … 116 137 /// \brief The minimum priority. 117 138 /// 118 /// Returns the minimum priority.139 /// This function returns the minimum priority. 119 140 /// \pre The heap must be non-empty. 120 141 Prio prio() const {} 121 142 122 /// \brief Remove sthe item having minimum priority.123 /// 124 /// Removes the item having minimum priority.143 /// \brief Remove the item having minimum priority. 144 /// 145 /// This function removes the item having minimum priority. 125 146 /// \pre The heap must be non-empty. 126 147 void pop() {} 127 148 128 /// \brief Removes an item from the heap. 129 /// 130 /// Removes the given item from the heap if it is already stored. 149 /// \brief Remove the given item from the heap. 150 /// 151 /// This function removes the given item from the heap if it is 152 /// already stored. 131 153 /// \param i The item to delete. 154 /// \pre \e i must be in the heap. 132 155 void erase(const Item &i) {} 133 156 134 /// \brief The priority of an item.135 /// 136 /// Returns the priority of the given item.137 /// \param i The item. 138 /// \pre \ ci must be in the heap.157 /// \brief The priority of the given item. 158 /// 159 /// This function returns the priority of the given item. 160 /// \param i The item. 161 /// \pre \e i must be in the heap. 139 162 Prio operator[](const Item &i) const {} 140 163 141 /// \brief Set s the priority of an item or insertsit, if it is164 /// \brief Set the priority of an item or insert it, if it is 142 165 /// not stored in the heap. 143 166 /// 144 167 /// This method sets the priority of the given item if it is 145 /// already stored in the heap. 146 /// Otherwise it inserts the given itemwith the given priority.168 /// already stored in the heap. Otherwise it inserts the given 169 /// item into the heap with the given priority. 147 170 /// 148 171 /// \param i The item. … … 150 173 void set(const Item &i, const Prio &p) {} 151 174 152 /// \brief Decrease sthe priority of an item to the given value.153 /// 154 /// Decreases the priority of an item to the given value.175 /// \brief Decrease the priority of an item to the given value. 176 /// 177 /// This function decreases the priority of an item to the given value. 155 178 /// \param i The item. 156 179 /// \param p The priority. 157 /// \pre \ c i must be stored in the heap with priority at least \cp.180 /// \pre \e i must be stored in the heap with priority at least \e p. 158 181 void decrease(const Item &i, const Prio &p) {} 159 182 160 /// \brief Increase sthe priority of an item to the given value.161 /// 162 /// Increases the priority of an item to the given value.183 /// \brief Increase the priority of an item to the given value. 184 /// 185 /// This function increases the priority of an item to the given value. 163 186 /// \param i The item. 164 187 /// \param p The priority. 165 /// \pre \ c i must be stored in the heap with priority at most \cp.188 /// \pre \e i must be stored in the heap with priority at most \e p. 166 189 void increase(const Item &i, const Prio &p) {} 167 190 168 /// \brief Returns if an item is in, has already been in, or has 169 /// never been in the heap. 191 /// \brief Return the state of an item. 170 192 /// 171 193 /// This method returns \c PRE_HEAP if the given item has never … … 177 199 State state(const Item &i) const {} 178 200 179 /// \brief Set sthe state of an item in the heap.180 /// 181 /// Sets the state of the given item in the heap. It can be used182 /// to manually clear the heap when it is important to achive the183 /// better time complexity.201 /// \brief Set the state of an item in the heap. 202 /// 203 /// This function sets the state of the given item in the heap. 204 /// It can be used to manually clear the heap when it is important 205 /// to achive better time complexity. 184 206 /// \param i The item. 185 207 /// \param st The state. It should not be \c IN_HEAP. -
lemon/concepts/maps.h
r576 r765 183 183 template<typename _ReferenceMap> 184 184 struct Constraints { 185 void constraints() { 185 typename enable_if<typename _ReferenceMap::ReferenceMapTag, void>::type 186 constraints() { 186 187 checkConcept<ReadWriteMap<K, T>, _ReferenceMap >(); 187 188 ref = m[key]; -
lemon/cplex.cc
r623 r793 112 112 } 113 113 114 int CplexBase::_addRow(Value lb, ExprIterator b, 115 ExprIterator e, Value ub) { 116 int i = CPXgetnumrows(cplexEnv(), _prob); 117 if (lb == -INF) { 118 const char s = 'L'; 119 CPXnewrows(cplexEnv(), _prob, 1, &ub, &s, 0, 0); 120 } else if (ub == INF) { 121 const char s = 'G'; 122 CPXnewrows(cplexEnv(), _prob, 1, &lb, &s, 0, 0); 123 } else if (lb == ub){ 124 const char s = 'E'; 125 CPXnewrows(cplexEnv(), _prob, 1, &lb, &s, 0, 0); 126 } else { 127 const char s = 'R'; 128 double len = ub - lb; 129 CPXnewrows(cplexEnv(), _prob, 1, &lb, &s, &len, 0); 130 } 131 132 std::vector<int> indices; 133 std::vector<int> rowlist; 134 std::vector<Value> values; 135 136 for(ExprIterator it=b; it!=e; ++it) { 137 indices.push_back(it->first); 138 values.push_back(it->second); 139 rowlist.push_back(i); 140 } 141 142 CPXchgcoeflist(cplexEnv(), _prob, values.size(), 143 &rowlist.front(), &indices.front(), &values.front()); 144 145 return i; 146 } 114 147 115 148 void CplexBase::_eraseCol(int i) { -
lemon/cplex.h
r623 r793 94 94 virtual int _addCol(); 95 95 virtual int _addRow(); 96 virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u); 96 97 97 98 virtual void _eraseCol(int i); -
lemon/dfs.h
r631 r764 48 48 ///The type of the map that stores the predecessor 49 49 ///arcs of the %DFS paths. 50 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.50 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 51 51 typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; 52 52 ///Instantiates a \c PredMap. … … 63 63 64 64 ///The type of the map that indicates which nodes are processed. 65 ///It must meet the \ref concepts::WriteMap "WriteMap" concept. 65 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 66 ///By default it is a NullMap. 66 67 typedef NullMap<typename Digraph::Node,bool> ProcessedMap; 67 68 ///Instantiates a \c ProcessedMap. … … 82 83 83 84 ///The type of the map that indicates which nodes are reached. 84 ///It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.85 ///It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 85 86 typedef typename Digraph::template NodeMap<bool> ReachedMap; 86 87 ///Instantiates a \c ReachedMap. … … 97 98 98 99 ///The type of the map that stores the distances of the nodes. 99 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.100 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 100 101 typedef typename Digraph::template NodeMap<int> DistMap; 101 102 ///Instantiates a \c DistMap. … … 225 226 ///\ref named-templ-param "Named parameter" for setting 226 227 ///\c PredMap type. 227 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.228 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 228 229 template <class T> 229 230 struct SetPredMap : public Dfs<Digraph, SetPredMapTraits<T> > { … … 245 246 ///\ref named-templ-param "Named parameter" for setting 246 247 ///\c DistMap type. 247 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.248 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 248 249 template <class T> 249 250 struct SetDistMap : public Dfs< Digraph, SetDistMapTraits<T> > { … … 265 266 ///\ref named-templ-param "Named parameter" for setting 266 267 ///\c ReachedMap type. 267 ///It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.268 ///It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 268 269 template <class T> 269 270 struct SetReachedMap : public Dfs< Digraph, SetReachedMapTraits<T> > { … … 285 286 ///\ref named-templ-param "Named parameter" for setting 286 287 ///\c ProcessedMap type. 287 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.288 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 288 289 template <class T> 289 290 struct SetProcessedMap : public Dfs< Digraph, SetProcessedMapTraits<T> > { … … 412 413 ///The simplest way to execute the DFS algorithm is to use one of the 413 414 ///member functions called \ref run(Node) "run()".\n 414 ///If you need more control on the execution, firstyou have to call415 ///\ref init() , then you can add a source node with \ref addSource()415 ///If you need better control on the execution, you have to call 416 ///\ref init() first, then you can add a source node with \ref addSource() 416 417 ///and perform the actual computation with \ref start(). 417 418 ///This procedure can be repeated if there are nodes that have not … … 670 671 ///@{ 671 672 672 ///The DFS path to anode.673 674 ///Returns the DFS path to a node.673 ///The DFS path to the given node. 674 675 ///Returns the DFS path to the given node from the root(s). 675 676 /// 676 677 ///\warning \c t should be reached from the root(s). … … 680 681 Path path(Node t) const { return Path(*G, *_pred, t); } 681 682 682 ///The distance of anode from the root(s).683 684 ///Returns the distance of anode from the root(s).683 ///The distance of the given node from the root(s). 684 685 ///Returns the distance of the given node from the root(s). 685 686 /// 686 687 ///\warning If node \c v is not reached from the root(s), then … … 691 692 int dist(Node v) const { return (*_dist)[v]; } 692 693 693 ///Returns the 'previous arc' of the %DFS tree for anode.694 ///Returns the 'previous arc' of the %DFS tree for the given node. 694 695 695 696 ///This function returns the 'previous arc' of the %DFS tree for the … … 699 700 /// 700 701 ///The %DFS tree used here is equal to the %DFS tree used in 701 ///\ref predNode() .702 ///\ref predNode() and \ref predMap(). 702 703 /// 703 704 ///\pre Either \ref run(Node) "run()" or \ref init() … … 705 706 Arc predArc(Node v) const { return (*_pred)[v];} 706 707 707 ///Returns the 'previous node' of the %DFS tree .708 ///Returns the 'previous node' of the %DFS tree for the given node. 708 709 709 710 ///This function returns the 'previous node' of the %DFS 710 711 ///tree for the node \c v, i.e. it returns the last but one node 711 /// froma %DFS path from a root to \c v. It is \c INVALID712 ///of a %DFS path from a root to \c v. It is \c INVALID 712 713 ///if \c v is not reached from the root(s) or if \c v is a root. 713 714 /// 714 715 ///The %DFS tree used here is equal to the %DFS tree used in 715 ///\ref predArc() .716 ///\ref predArc() and \ref predMap(). 716 717 /// 717 718 ///\pre Either \ref run(Node) "run()" or \ref init() … … 734 735 /// 735 736 ///Returns a const reference to the node map that stores the predecessor 736 ///arcs, which form the DFS tree .737 ///arcs, which form the DFS tree (forest). 737 738 /// 738 739 ///\pre Either \ref run(Node) "run()" or \ref init() … … 740 741 const PredMap &predMap() const { return *_pred;} 741 742 742 ///Checks if anode is reached from the root(s).743 ///Checks if the given node. node is reached from the root(s). 743 744 744 745 ///Returns \c true if \c v is reached from the root(s). … … 766 767 ///The type of the map that stores the predecessor 767 768 ///arcs of the %DFS paths. 768 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.769 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 769 770 typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; 770 771 ///Instantiates a PredMap. … … 781 782 782 783 ///The type of the map that indicates which nodes are processed. 783 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.784 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 784 785 ///By default it is a NullMap. 785 786 typedef NullMap<typename Digraph::Node,bool> ProcessedMap; … … 801 802 802 803 ///The type of the map that indicates which nodes are reached. 803 ///It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.804 ///It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 804 805 typedef typename Digraph::template NodeMap<bool> ReachedMap; 805 806 ///Instantiates a ReachedMap. … … 816 817 817 818 ///The type of the map that stores the distances of the nodes. 818 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.819 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 819 820 typedef typename Digraph::template NodeMap<int> DistMap; 820 821 ///Instantiates a DistMap. … … 831 832 832 833 ///The type of the DFS paths. 833 ///It must meetthe \ref concepts::Path "Path" concept.834 ///It must conform to the \ref concepts::Path "Path" concept. 834 835 typedef lemon::Path<Digraph> Path; 835 836 }; … … 837 838 /// Default traits class used by DfsWizard 838 839 839 /// To make it easier to use Dfs algorithm 840 /// we have created a wizard class. 841 /// This \ref DfsWizard class needs default traits, 842 /// as well as the \ref Dfs class. 843 /// The \ref DfsWizardBase is a class to be the default traits of the 844 /// \ref DfsWizard class. 840 /// Default traits class used by DfsWizard. 841 /// \tparam GR The type of the digraph. 845 842 template<class GR> 846 843 class DfsWizardBase : public DfsWizardDefaultTraits<GR> … … 870 867 /// Constructor. 871 868 872 /// This constructor does not require parameters, thereforeit initiates869 /// This constructor does not require parameters, it initiates 873 870 /// all of the attributes to \c 0. 874 871 DfsWizardBase() : _g(0), _reached(0), _processed(0), _pred(0), … … 900 897 typedef TR Base; 901 898 902 ///The type of the digraph the algorithm runs on.903 899 typedef typename TR::Digraph Digraph; 904 900 … … 908 904 typedef typename Digraph::OutArcIt OutArcIt; 909 905 910 ///\brief The type of the map that stores the predecessor911 ///arcs of the DFS paths.912 906 typedef typename TR::PredMap PredMap; 913 ///\brief The type of the map that stores the distances of the nodes.914 907 typedef typename TR::DistMap DistMap; 915 ///\brief The type of the map that indicates which nodes are reached.916 908 typedef typename TR::ReachedMap ReachedMap; 917 ///\brief The type of the map that indicates which nodes are processed.918 909 typedef typename TR::ProcessedMap ProcessedMap; 919 ///The type of the DFS paths920 910 typedef typename TR::Path Path; 921 911 … … 1000 990 SetPredMapBase(const TR &b) : TR(b) {} 1001 991 }; 1002 ///\brief \ref named-func-param "Named parameter" 1003 ///for setting PredMap object. 1004 /// 1005 ///\ref named-func-param "Named parameter" 1006 ///for setting PredMap object. 992 993 ///\brief \ref named-templ-param "Named parameter" for setting 994 ///the predecessor map. 995 /// 996 ///\ref named-templ-param "Named parameter" function for setting 997 ///the map that stores the predecessor arcs of the nodes. 1007 998 template<class T> 1008 999 DfsWizard<SetPredMapBase<T> > predMap(const T &t) … … 1018 1009 SetReachedMapBase(const TR &b) : TR(b) {} 1019 1010 }; 1020 ///\brief \ref named-func-param "Named parameter" 1021 ///for setting ReachedMap object. 1022 /// 1023 /// \ref named-func-param "Named parameter" 1024 ///for setting ReachedMap object. 1011 1012 ///\brief \ref named-templ-param "Named parameter" for setting 1013 ///the reached map. 1014 /// 1015 ///\ref named-templ-param "Named parameter" function for setting 1016 ///the map that indicates which nodes are reached. 1025 1017 template<class T> 1026 1018 DfsWizard<SetReachedMapBase<T> > reachedMap(const T &t) … … 1036 1028 SetDistMapBase(const TR &b) : TR(b) {} 1037 1029 }; 1038 ///\brief \ref named-func-param "Named parameter" 1039 ///for setting DistMap object. 1040 /// 1041 /// \ref named-func-param "Named parameter" 1042 ///for setting DistMap object. 1030 1031 ///\brief \ref named-templ-param "Named parameter" for setting 1032 ///the distance map. 1033 /// 1034 ///\ref named-templ-param "Named parameter" function for setting 1035 ///the map that stores the distances of the nodes calculated 1036 ///by the algorithm. 1043 1037 template<class T> 1044 1038 DfsWizard<SetDistMapBase<T> > distMap(const T &t) … … 1054 1048 SetProcessedMapBase(const TR &b) : TR(b) {} 1055 1049 }; 1056 ///\brief \ref named-func-param "Named parameter" 1057 ///for setting ProcessedMap object. 1058 /// 1059 /// \ref named-func-param "Named parameter" 1060 ///for setting ProcessedMap object. 1050 1051 ///\brief \ref named-func-param "Named parameter" for setting 1052 ///the processed map. 1053 /// 1054 ///\ref named-templ-param "Named parameter" function for setting 1055 ///the map that indicates which nodes are processed. 1061 1056 template<class T> 1062 1057 DfsWizard<SetProcessedMapBase<T> > processedMap(const T &t) … … 1209 1204 /// 1210 1205 /// The type of the map that indicates which nodes are reached. 1211 /// It must meetthe \ref concepts::ReadWriteMap "ReadWriteMap" concept.1206 /// It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 1212 1207 typedef typename Digraph::template NodeMap<bool> ReachedMap; 1213 1208 … … 1370 1365 /// The simplest way to execute the DFS algorithm is to use one of the 1371 1366 /// member functions called \ref run(Node) "run()".\n 1372 /// If you need more control on the execution, firstyou have to call1373 /// \ref init() , then you can add a source node with \ref addSource()1367 /// If you need better control on the execution, you have to call 1368 /// \ref init() first, then you can add a source node with \ref addSource() 1374 1369 /// and perform the actual computation with \ref start(). 1375 1370 /// This procedure can be repeated if there are nodes that have not … … 1621 1616 ///@{ 1622 1617 1623 /// \brief Checks if anode is reached from the root(s).1618 /// \brief Checks if the given node is reached from the root(s). 1624 1619 /// 1625 1620 /// Returns \c true if \c v is reached from the root(s). -
lemon/dijkstra.h
r631 r764 71 71 72 72 ///The type of the map that stores the arc lengths. 73 ///It must meetthe \ref concepts::ReadMap "ReadMap" concept.73 ///It must conform to the \ref concepts::ReadMap "ReadMap" concept. 74 74 typedef LEN LengthMap; 75 ///The type of the length of the arcs.75 ///The type of the arc lengths. 76 76 typedef typename LEN::Value Value; 77 77 … … 117 117 ///The type of the map that stores the predecessor 118 118 ///arcs of the shortest paths. 119 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.119 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 120 120 typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; 121 121 ///Instantiates a \c PredMap. … … 132 132 133 133 ///The type of the map that indicates which nodes are processed. 134 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.134 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 135 135 ///By default it is a NullMap. 136 136 typedef NullMap<typename Digraph::Node,bool> ProcessedMap; … … 152 152 153 153 ///The type of the map that stores the distances of the nodes. 154 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.154 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 155 155 typedef typename Digraph::template NodeMap<typename LEN::Value> DistMap; 156 156 ///Instantiates a \c DistMap. … … 169 169 /// \ingroup shortest_path 170 170 ///This class provides an efficient implementation of the %Dijkstra algorithm. 171 /// 172 ///The %Dijkstra algorithm solves the single-source shortest path problem 173 ///when all arc lengths are non-negative. If there are negative lengths, 174 ///the BellmanFord algorithm should be used instead. 171 175 /// 172 176 ///The arc lengths are passed to the algorithm using a … … 202 206 typedef typename TR::Digraph Digraph; 203 207 204 ///The type of the length of the arcs.208 ///The type of the arc lengths. 205 209 typedef typename TR::LengthMap::Value Value; 206 210 ///The type of the map that stores the arc lengths. … … 305 309 ///\ref named-templ-param "Named parameter" for setting 306 310 ///\c PredMap type. 307 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.311 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 308 312 template <class T> 309 313 struct SetPredMap … … 326 330 ///\ref named-templ-param "Named parameter" for setting 327 331 ///\c DistMap type. 328 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.332 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 329 333 template <class T> 330 334 struct SetDistMap … … 347 351 ///\ref named-templ-param "Named parameter" for setting 348 352 ///\c ProcessedMap type. 349 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.353 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 350 354 template <class T> 351 355 struct SetProcessedMap … … 444 448 ///\ref named-templ-param "Named parameter" for setting 445 449 ///\c OperationTraits type. 450 /// For more information see \ref DijkstraDefaultOperationTraits. 446 451 template <class T> 447 452 struct SetOperationTraits … … 585 590 ///The simplest way to execute the %Dijkstra algorithm is to use 586 591 ///one of the member functions called \ref run(Node) "run()".\n 587 ///If you need more control on the execution, firstyou have to call588 ///\ref init() , then you can add several source nodes with592 ///If you need better control on the execution, you have to call 593 ///\ref init() first, then you can add several source nodes with 589 594 ///\ref addSource(). Finally the actual path computation can be 590 595 ///performed with one of the \ref start() functions. … … 802 807 ///The results of the %Dijkstra algorithm can be obtained using these 803 808 ///functions.\n 804 ///Either \ref run(Node) "run()" or \ref start() should be called809 ///Either \ref run(Node) "run()" or \ref init() should be called 805 810 ///before using them. 806 811 807 812 ///@{ 808 813 809 ///The shortest path to anode.810 811 ///Returns the shortest path to a node.814 ///The shortest path to the given node. 815 816 ///Returns the shortest path to the given node from the root(s). 812 817 /// 813 818 ///\warning \c t should be reached from the root(s). … … 817 822 Path path(Node t) const { return Path(*G, *_pred, t); } 818 823 819 ///The distance of anode from the root(s).820 821 ///Returns the distance of anode from the root(s).824 ///The distance of the given node from the root(s). 825 826 ///Returns the distance of the given node from the root(s). 822 827 /// 823 828 ///\warning If node \c v is not reached from the root(s), then … … 828 833 Value dist(Node v) const { return (*_dist)[v]; } 829 834 830 ///Returns the 'previous arc' of the shortest path tree for a node. 831 835 ///\brief Returns the 'previous arc' of the shortest path tree for 836 ///the given node. 837 /// 832 838 ///This function returns the 'previous arc' of the shortest path 833 839 ///tree for the node \c v, i.e. it returns the last arc of a … … 836 842 /// 837 843 ///The shortest path tree used here is equal to the shortest path 838 ///tree used in \ref predNode() .844 ///tree used in \ref predNode() and \ref predMap(). 839 845 /// 840 846 ///\pre Either \ref run(Node) "run()" or \ref init() … … 842 848 Arc predArc(Node v) const { return (*_pred)[v]; } 843 849 844 ///Returns the 'previous node' of the shortest path tree for a node. 845 850 ///\brief Returns the 'previous node' of the shortest path tree for 851 ///the given node. 852 /// 846 853 ///This function returns the 'previous node' of the shortest path 847 854 ///tree for the node \c v, i.e. it returns the last but one node 848 /// froma shortest path from a root to \c v. It is \c INVALID855 ///of a shortest path from a root to \c v. It is \c INVALID 849 856 ///if \c v is not reached from the root(s) or if \c v is a root. 850 857 /// 851 858 ///The shortest path tree used here is equal to the shortest path 852 ///tree used in \ref predArc() .859 ///tree used in \ref predArc() and \ref predMap(). 853 860 /// 854 861 ///\pre Either \ref run(Node) "run()" or \ref init() … … 871 878 /// 872 879 ///Returns a const reference to the node map that stores the predecessor 873 ///arcs, which form the shortest path tree .880 ///arcs, which form the shortest path tree (forest). 874 881 /// 875 882 ///\pre Either \ref run(Node) "run()" or \ref init() … … 877 884 const PredMap &predMap() const { return *_pred;} 878 885 879 ///Checks if anode is reached from the root(s).886 ///Checks if the given node is reached from the root(s). 880 887 881 888 ///Returns \c true if \c v is reached from the root(s). … … 896 903 Heap::POST_HEAP; } 897 904 898 ///The current distance of anode from the root(s).899 900 ///Returns the current distance of anode from the root(s).905 ///The current distance of the given node from the root(s). 906 907 ///Returns the current distance of the given node from the root(s). 901 908 ///It may be decreased in the following processes. 902 909 /// … … 925 932 926 933 ///The type of the map that stores the arc lengths. 927 ///It must meetthe \ref concepts::ReadMap "ReadMap" concept.934 ///It must conform to the \ref concepts::ReadMap "ReadMap" concept. 928 935 typedef LEN LengthMap; 929 ///The type of the length of the arcs.936 ///The type of the arc lengths. 930 937 typedef typename LEN::Value Value; 931 938 … … 974 981 ///The type of the map that stores the predecessor 975 982 ///arcs of the shortest paths. 976 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.983 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 977 984 typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap; 978 985 ///Instantiates a PredMap. … … 989 996 990 997 ///The type of the map that indicates which nodes are processed. 991 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.998 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 992 999 ///By default it is a NullMap. 993 1000 typedef NullMap<typename Digraph::Node,bool> ProcessedMap; … … 1009 1016 1010 1017 ///The type of the map that stores the distances of the nodes. 1011 ///It must meetthe \ref concepts::WriteMap "WriteMap" concept.1018 ///It must conform to the \ref concepts::WriteMap "WriteMap" concept. 1012 1019 typedef typename Digraph::template NodeMap<typename LEN::Value> DistMap; 1013 1020 ///Instantiates a DistMap. … … 1024 1031 1025 1032 ///The type of the shortest paths. 1026 ///It must meetthe \ref concepts::Path "Path" concept.1033 ///It must conform to the \ref concepts::Path "Path" concept. 1027 1034 typedef lemon::Path<Digraph> Path; 1028 1035 }; … … 1030 1037 /// Default traits class used by DijkstraWizard 1031 1038 1032 /// To make it easier to use Dijkstra algorithm 1033 /// we have created a wizard class. 1034 /// This \ref DijkstraWizard class needs default traits, 1035 /// as well as the \ref Dijkstra class. 1036 /// The \ref DijkstraWizardBase is a class to be the default traits of the 1037 /// \ref DijkstraWizard class. 1039 /// Default traits class used by DijkstraWizard. 1040 /// \tparam GR The type of the digraph. 1041 /// \tparam LEN The type of the length map. 1038 1042 template<typename GR, typename LEN> 1039 1043 class DijkstraWizardBase : public DijkstraWizardDefaultTraits<GR,LEN> … … 1094 1098 typedef TR Base; 1095 1099 1096 ///The type of the digraph the algorithm runs on.1097 1100 typedef typename TR::Digraph Digraph; 1098 1101 … … 1102 1105 typedef typename Digraph::OutArcIt OutArcIt; 1103 1106 1104 ///The type of the map that stores the arc lengths.1105 1107 typedef typename TR::LengthMap LengthMap; 1106 ///The type of the length of the arcs.1107 1108 typedef typename LengthMap::Value Value; 1108 ///\brief The type of the map that stores the predecessor1109 ///arcs of the shortest paths.1110 1109 typedef typename TR::PredMap PredMap; 1111 ///The type of the map that stores the distances of the nodes.1112 1110 typedef typename TR::DistMap DistMap; 1113 ///The type of the map that indicates which nodes are processed.1114 1111 typedef typename TR::ProcessedMap ProcessedMap; 1115 ///The type of the shortest paths1116 1112 typedef typename TR::Path Path; 1117 ///The heap type used by the dijkstra algorithm.1118 1113 typedef typename TR::Heap Heap; 1119 1114 … … 1187 1182 SetPredMapBase(const TR &b) : TR(b) {} 1188 1183 }; 1189 ///\brief \ref named-func-param "Named parameter" 1190 ///for setting PredMap object. 1191 /// 1192 ///\ref named-func-param "Named parameter" 1193 ///for setting PredMap object. 1184 1185 ///\brief \ref named-templ-param "Named parameter" for setting 1186 ///the predecessor map. 1187 /// 1188 ///\ref named-templ-param "Named parameter" function for setting 1189 ///the map that stores the predecessor arcs of the nodes. 1194 1190 template<class T> 1195 1191 DijkstraWizard<SetPredMapBase<T> > predMap(const T &t) … … 1205 1201 SetDistMapBase(const TR &b) : TR(b) {} 1206 1202 }; 1207 ///\brief \ref named-func-param "Named parameter" 1208 ///for setting DistMap object. 1209 /// 1210 ///\ref named-func-param "Named parameter" 1211 ///for setting DistMap object. 1203 1204 ///\brief \ref named-templ-param "Named parameter" for setting 1205 ///the distance map. 1206 /// 1207 ///\ref named-templ-param "Named parameter" function for setting 1208 ///the map that stores the distances of the nodes calculated 1209 ///by the algorithm. 1212 1210 template<class T> 1213 1211 DijkstraWizard<SetDistMapBase<T> > distMap(const T &t) … … 1223 1221 SetProcessedMapBase(const TR &b) : TR(b) {} 1224 1222 }; 1225 ///\brief \ref named-func-param "Named parameter" 1226 ///for setting ProcessedMap object. 1227 /// 1228 /// \ref named-func-param "Named parameter" 1229 ///for setting ProcessedMap object. 1223 1224 ///\brief \ref named-func-param "Named parameter" for setting 1225 ///the processed map. 1226 /// 1227 ///\ref named-templ-param "Named parameter" function for setting 1228 ///the map that indicates which nodes are processed. 1230 1229 template<class T> 1231 1230 DijkstraWizard<SetProcessedMapBase<T> > processedMap(const T &t) … … 1240 1239 SetPathBase(const TR &b) : TR(b) {} 1241 1240 }; 1241 1242 1242 ///\brief \ref named-func-param "Named parameter" 1243 1243 ///for getting the shortest path to the target node. -
lemon/dim2.h
r463 r761 22 22 #include <iostream> 23 23 24 ///\ingroup misc24 ///\ingroup geomdat 25 25 ///\file 26 26 ///\brief A simple two dimensional vector and a bounding box implementation 27 ///28 /// The class \ref lemon::dim2::Point "dim2::Point" implements29 /// a two dimensional vector with the usual operations.30 ///31 /// The class \ref lemon::dim2::Box "dim2::Box" can be used to determine32 /// the rectangular bounding box of a set of33 /// \ref lemon::dim2::Point "dim2::Point"'s.34 27 35 28 namespace lemon { … … 41 34 namespace dim2 { 42 35 43 /// \addtogroup misc36 /// \addtogroup geomdat 44 37 /// @{ 45 38 -
lemon/full_graph.h
r664 r782 25 25 ///\ingroup graphs 26 26 ///\file 27 ///\brief Full Graph and FullDigraph classes.27 ///\brief FullDigraph and FullGraph classes. 28 28 29 29 namespace lemon { … … 149 149 /// \ingroup graphs 150 150 /// 151 /// \brief A full digraph class. 152 /// 153 /// This is a simple and fast directed full graph implementation. 154 /// From each node go arcs to each node (including the source node), 155 /// therefore the number of the arcs in the digraph is the square of 156 /// the node number. This digraph type is completely static, so you 157 /// can neither add nor delete either arcs or nodes, and it needs 158 /// constant space in memory. 159 /// 160 /// This class fully conforms to the \ref concepts::Digraph 161 /// "Digraph concept". 162 /// 163 /// The \c FullDigraph and \c FullGraph classes are very similar, 151 /// \brief A directed full graph class. 152 /// 153 /// FullDigraph is a simple and fast implmenetation of directed full 154 /// (complete) graphs. It contains an arc from each node to each node 155 /// (including a loop for each node), therefore the number of arcs 156 /// is the square of the number of nodes. 157 /// This class is completely static and it needs constant memory space. 158 /// Thus you can neither add nor delete nodes or arcs, however 159 /// the structure can be resized using resize(). 160 /// 161 /// This type fully conforms to the \ref concepts::Digraph "Digraph concept". 162 /// Most of its member functions and nested classes are documented 163 /// only in the concept class. 164 /// 165 /// \note FullDigraph and FullGraph classes are very similar, 164 166 /// but there are two differences. While this class conforms only 165 /// to the \ref concepts::Digraph "Digraph" concept, the \cFullGraph166 /// c lass conforms to the \ref concepts::Graph "Graph" concept,167 /// moreover \c FullGraph does not contain a loop arcfor each168 /// node as \c FullDigraphdoes.167 /// to the \ref concepts::Digraph "Digraph" concept, FullGraph 168 /// conforms to the \ref concepts::Graph "Graph" concept, 169 /// moreover FullGraph does not contain a loop for each 170 /// node as this class does. 169 171 /// 170 172 /// \sa FullGraph … … 174 176 public: 175 177 176 /// \brief Constructor 178 /// \brief Default constructor. 179 /// 180 /// Default constructor. The number of nodes and arcs will be zero. 177 181 FullDigraph() { construct(0); } 178 182 … … 185 189 /// \brief Resizes the digraph 186 190 /// 187 /// Resizes the digraph. The function will fully destroyand188 /// rebuild the digraph. This cause that the maps of the digraph will191 /// This function resizes the digraph. It fully destroys and 192 /// rebuilds the structure, therefore the maps of the digraph will be 189 193 /// reallocated automatically and the previous values will be lost. 190 194 void resize(int n) { … … 198 202 /// \brief Returns the node with the given index. 199 203 /// 200 /// Returns the node with the given index. Since it is a static201 /// digraph its nodes can be indexed with integers from the range202 /// <tt>[0..nodeNum()-1]</tt>.204 /// Returns the node with the given index. Since this structure is 205 /// completely static, the nodes can be indexed with integers from 206 /// the range <tt>[0..nodeNum()-1]</tt>. 203 207 /// \sa index() 204 208 Node operator()(int ix) const { return Parent::operator()(ix); } … … 206 210 /// \brief Returns the index of the given node. 207 211 /// 208 /// Returns the index of the given node. Since it is a static209 /// digraph its nodes can be indexed with integers from the range210 /// <tt>[0..nodeNum()-1]</tt>.211 /// \sa operator() 212 int index( const Node&node) const { return Parent::index(node); }212 /// Returns the index of the given node. Since this structure is 213 /// completely static, the nodes can be indexed with integers from 214 /// the range <tt>[0..nodeNum()-1]</tt>. 215 /// \sa operator()() 216 int index(Node node) const { return Parent::index(node); } 213 217 214 218 /// \brief Returns the arc connecting the given nodes. 215 219 /// 216 220 /// Returns the arc connecting the given nodes. 217 Arc arc( const Node& u, const Node&v) const {221 Arc arc(Node u, Node v) const { 218 222 return Parent::arc(u, v); 219 223 } … … 521 525 /// \brief An undirected full graph class. 522 526 /// 523 /// This is a simple and fast undirected full graph 524 /// implementation. From each node go edge to each other node, 525 /// therefore the number of edges in the graph is \f$n(n-1)/2\f$. 526 /// This graph type is completely static, so you can neither 527 /// add nor delete either edges or nodes, and it needs constant 528 /// space in memory. 529 /// 530 /// This class fully conforms to the \ref concepts::Graph "Graph concept". 531 /// 532 /// The \c FullGraph and \c FullDigraph classes are very similar, 533 /// but there are two differences. While the \c FullDigraph class 527 /// FullGraph is a simple and fast implmenetation of undirected full 528 /// (complete) graphs. It contains an edge between every distinct pair 529 /// of nodes, therefore the number of edges is <tt>n(n-1)/2</tt>. 530 /// This class is completely static and it needs constant memory space. 531 /// Thus you can neither add nor delete nodes or edges, however 532 /// the structure can be resized using resize(). 533 /// 534 /// This type fully conforms to the \ref concepts::Graph "Graph concept". 535 /// Most of its member functions and nested classes are documented 536 /// only in the concept class. 537 /// 538 /// \note FullDigraph and FullGraph classes are very similar, 539 /// but there are two differences. While FullDigraph 534 540 /// conforms only to the \ref concepts::Digraph "Digraph" concept, 535 541 /// this class conforms to the \ref concepts::Graph "Graph" concept, 536 /// moreover \c FullGraph does not contain a loop arcfor each537 /// node as \cFullDigraph does.542 /// moreover this class does not contain a loop for each 543 /// node as FullDigraph does. 538 544 /// 539 545 /// \sa FullDigraph … … 543 549 public: 544 550 545 /// \brief Constructor 551 /// \brief Default constructor. 552 /// 553 /// Default constructor. The number of nodes and edges will be zero. 546 554 FullGraph() { construct(0); } 547 555 … … 554 562 /// \brief Resizes the graph 555 563 /// 556 /// Resizes the graph. The function will fully destroyand557 /// rebuild the graph. This cause that the maps of the graph will564 /// This function resizes the graph. It fully destroys and 565 /// rebuilds the structure, therefore the maps of the graph will be 558 566 /// reallocated automatically and the previous values will be lost. 559 567 void resize(int n) { … … 569 577 /// \brief Returns the node with the given index. 570 578 /// 571 /// Returns the node with the given index. Since it is a static572 /// graph its nodes can be indexed with integers from the range573 /// <tt>[0..nodeNum()-1]</tt>.579 /// Returns the node with the given index. Since this structure is 580 /// completely static, the nodes can be indexed with integers from 581 /// the range <tt>[0..nodeNum()-1]</tt>. 574 582 /// \sa index() 575 583 Node operator()(int ix) const { return Parent::operator()(ix); } … … 577 585 /// \brief Returns the index of the given node. 578 586 /// 579 /// Returns the index of the given node. Since it is a static580 /// graph its nodes can be indexed with integers from the range581 /// <tt>[0..nodeNum()-1]</tt>.582 /// \sa operator() 583 int index( const Node&node) const { return Parent::index(node); }587 /// Returns the index of the given node. Since this structure is 588 /// completely static, the nodes can be indexed with integers from 589 /// the range <tt>[0..nodeNum()-1]</tt>. 590 /// \sa operator()() 591 int index(Node node) const { return Parent::index(node); } 584 592 585 593 /// \brief Returns the arc connecting the given nodes. 586 594 /// 587 595 /// Returns the arc connecting the given nodes. 588 Arc arc( const Node& s, const Node&t) const {596 Arc arc(Node s, Node t) const { 589 597 return Parent::arc(s, t); 590 598 } 591 599 592 /// \brief Returns the edge connect sthe given nodes.593 /// 594 /// Returns the edge connect sthe given nodes.595 Edge edge( const Node& u, const Node&v) const {600 /// \brief Returns the edge connecting the given nodes. 601 /// 602 /// Returns the edge connecting the given nodes. 603 Edge edge(Node u, Node v) const { 596 604 return Parent::edge(u, v); 597 605 } -
lemon/glpk.cc
r623 r793 57 57 int i = glp_add_rows(lp, 1); 58 58 glp_set_row_bnds(lp, i, GLP_FR, 0.0, 0.0); 59 return i; 60 } 61 62 int GlpkBase::_addRow(Value lo, ExprIterator b, 63 ExprIterator e, Value up) { 64 int i = glp_add_rows(lp, 1); 65 66 if (lo == -INF) { 67 if (up == INF) { 68 glp_set_row_bnds(lp, i, GLP_FR, lo, up); 69 } else { 70 glp_set_row_bnds(lp, i, GLP_UP, lo, up); 71 } 72 } else { 73 if (up == INF) { 74 glp_set_row_bnds(lp, i, GLP_LO, lo, up); 75 } else if (lo != up) { 76 glp_set_row_bnds(lp, i, GLP_DB, lo, up); 77 } else { 78 glp_set_row_bnds(lp, i, GLP_FX, lo, up); 79 } 80 } 81 82 std::vector<int> indexes; 83 std::vector<Value> values; 84 85 indexes.push_back(0); 86 values.push_back(0); 87 88 for(ExprIterator it = b; it != e; ++it) { 89 indexes.push_back(it->first); 90 values.push_back(it->second); 91 } 92 93 glp_set_mat_row(lp, i, values.size() - 1, 94 &indexes.front(), &values.front()); 59 95 return i; 60 96 } -
lemon/glpk.h
r697 r793 55 55 virtual int _addCol(); 56 56 virtual int _addRow(); 57 virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u); 57 58 58 59 virtual void _eraseCol(int i); -
lemon/gomory_hu.h
r643 r760 360 360 /// \c t. 361 361 /// \code 362 /// Gomor uHu<Graph> gom(g, capacities);362 /// GomoryHu<Graph> gom(g, capacities); 363 363 /// gom.run(); 364 364 /// int cnt=0; 365 /// for(Gomor uHu<Graph>::MinCutNodeIt n(gom,s,t); n!=INVALID; ++n) ++cnt;365 /// for(GomoryHu<Graph>::MinCutNodeIt n(gom,s,t); n!=INVALID; ++n) ++cnt; 366 366 /// \endcode 367 367 class MinCutNodeIt … … 457 457 /// \c t. 458 458 /// \code 459 /// Gomor uHu<Graph> gom(g, capacities);459 /// GomoryHu<Graph> gom(g, capacities); 460 460 /// gom.run(); 461 461 /// int value=0; 462 /// for(Gomor uHu<Graph>::MinCutEdgeIt e(gom,s,t); e!=INVALID; ++e)462 /// for(GomoryHu<Graph>::MinCutEdgeIt e(gom,s,t); e!=INVALID; ++e) 463 463 /// value+=capacities[e]; 464 464 /// \endcode -
lemon/grid_graph.h
r664 r782 471 471 /// \brief Grid graph class 472 472 /// 473 /// This classimplements a special graph type. The nodes of the474 /// graph can be indexed by two integer \c (i,j) valuewhere \c i is475 /// in the \c [0..width()-1] range and j is in the \c476 /// [0..height()-1] range.Two nodes are connected in the graph if477 /// the ind exes differ exactly on one position and exactly one is478 /// the difference. The nodes of the graph can be indexed by position479 /// with the \c operator()() function. The positions of the nodes can be480 /// get with\c pos(), \c col() and \c row() members. The outgoing473 /// GridGraph implements a special graph type. The nodes of the 474 /// graph can be indexed by two integer values \c (i,j) where \c i is 475 /// in the range <tt>[0..width()-1]</tt> and j is in the range 476 /// <tt>[0..height()-1]</tt>. Two nodes are connected in the graph if 477 /// the indices differ exactly on one position and the difference is 478 /// also exactly one. The nodes of the graph can be obtained by position 479 /// using the \c operator()() function and the indices of the nodes can 480 /// be obtained using \c pos(), \c col() and \c row() members. The outgoing 481 481 /// arcs can be retrieved with the \c right(), \c up(), \c left() 482 482 /// and \c down() functions, where the bottom-left corner is the 483 483 /// origin. 484 /// 485 /// This class is completely static and it needs constant memory space. 486 /// Thus you can neither add nor delete nodes or edges, however 487 /// the structure can be resized using resize(). 484 488 /// 485 489 /// \image html grid_graph.png … … 497 501 ///\endcode 498 502 /// 499 /// This graph type fully conforms to the \ref concepts::Graph 500 /// "Graph concept". 503 /// This type fully conforms to the \ref concepts::Graph "Graph concept". 504 /// Most of its member functions and nested classes are documented 505 /// only in the concept class. 501 506 class GridGraph : public ExtendedGridGraphBase { 502 507 typedef ExtendedGridGraphBase Parent; … … 504 509 public: 505 510 506 /// \brief Map to get the indices of the nodes as dim2::Point<int>. 507 /// 508 /// Map to get the indices of the nodes as dim2::Point<int>. 511 /// \brief Map to get the indices of the nodes as \ref dim2::Point 512 /// "dim2::Point<int>". 513 /// 514 /// Map to get the indices of the nodes as \ref dim2::Point 515 /// "dim2::Point<int>". 509 516 class IndexMap { 510 517 public: … … 515 522 516 523 /// \brief Constructor 517 ///518 /// Constructor519 524 IndexMap(const GridGraph& graph) : _graph(graph) {} 520 525 521 526 /// \brief The subscript operator 522 ///523 /// The subscript operator.524 527 Value operator[](Key key) const { 525 528 return _graph.pos(key); … … 541 544 542 545 /// \brief Constructor 543 ///544 /// Constructor545 546 ColMap(const GridGraph& graph) : _graph(graph) {} 546 547 547 548 /// \brief The subscript operator 548 ///549 /// The subscript operator.550 549 Value operator[](Key key) const { 551 550 return _graph.col(key); … … 567 566 568 567 /// \brief Constructor 569 ///570 /// Constructor571 568 RowMap(const GridGraph& graph) : _graph(graph) {} 572 569 573 570 /// \brief The subscript operator 574 ///575 /// The subscript operator.576 571 Value operator[](Key key) const { 577 572 return _graph.row(key); … … 584 579 /// \brief Constructor 585 580 /// 586 /// Construct a grid graph with given size.581 /// Construct a grid graph with the given size. 587 582 GridGraph(int width, int height) { construct(width, height); } 588 583 589 /// \brief Resize the graph 590 /// 591 /// Resize the graph. The function will fully destroy and rebuild 592 /// the graph. This cause that the maps of the graph will 593 /// reallocated automatically and the previous values will be 594 /// lost. 584 /// \brief Resizes the graph 585 /// 586 /// This function resizes the graph. It fully destroys and 587 /// rebuilds the structure, therefore the maps of the graph will be 588 /// reallocated automatically and the previous values will be lost. 595 589 void resize(int width, int height) { 596 590 Parent::notifier(Arc()).clear(); … … 610 604 } 611 605 612 /// \brief Gives back the column index of the node.606 /// \brief The column index of the node. 613 607 /// 614 608 /// Gives back the column index of the node. … … 617 611 } 618 612 619 /// \brief Gives back the row index of the node.613 /// \brief The row index of the node. 620 614 /// 621 615 /// Gives back the row index of the node. … … 624 618 } 625 619 626 /// \brief Gives back the position of the node.620 /// \brief The position of the node. 627 621 /// 628 622 /// Gives back the position of the node, ie. the <tt>(col,row)</tt> pair. … … 631 625 } 632 626 633 /// \brief Gives back the number of the columns.627 /// \brief The number of the columns. 634 628 /// 635 629 /// Gives back the number of the columns. … … 638 632 } 639 633 640 /// \brief Gives back the number of the rows.634 /// \brief The number of the rows. 641 635 /// 642 636 /// Gives back the number of the rows. … … 645 639 } 646 640 647 /// \brief Gives back the arc goes right from the node.641 /// \brief The arc goes right from the node. 648 642 /// 649 643 /// Gives back the arc goes right from the node. If there is not … … 653 647 } 654 648 655 /// \brief Gives back the arc goes left from the node.649 /// \brief The arc goes left from the node. 656 650 /// 657 651 /// Gives back the arc goes left from the node. If there is not … … 661 655 } 662 656 663 /// \brief Gives back the arc goes up from the node.657 /// \brief The arc goes up from the node. 664 658 /// 665 659 /// Gives back the arc goes up from the node. If there is not … … 669 663 } 670 664 671 /// \brief Gives back the arc goes down from the node.665 /// \brief The arc goes down from the node. 672 666 /// 673 667 /// Gives back the arc goes down from the node. If there is not -
lemon/hypercube_graph.h
r664 r784 283 283 /// \brief Hypercube graph class 284 284 /// 285 /// This class implements a special graph type. The nodes of the graph286 /// are indiced with integers withat most \c dim binary digits.285 /// HypercubeGraph implements a special graph type. The nodes of the 286 /// graph are indexed with integers having at most \c dim binary digits. 287 287 /// Two nodes are connected in the graph if and only if their indices 288 288 /// differ only on one position in the binary form. 289 /// This class is completely static and it needs constant memory space. 290 /// Thus you can neither add nor delete nodes or edges, however 291 /// the structure can be resized using resize(). 292 /// 293 /// This type fully conforms to the \ref concepts::Graph "Graph concept". 294 /// Most of its member functions and nested classes are documented 295 /// only in the concept class. 289 296 /// 290 297 /// \note The type of the indices is chosen to \c int for efficiency 291 298 /// reasons. Thus the maximum dimension of this implementation is 26 292 299 /// (assuming that the size of \c int is 32 bit). 293 ///294 /// This graph type fully conforms to the \ref concepts::Graph295 /// "Graph concept".296 300 class HypercubeGraph : public ExtendedHypercubeGraphBase { 297 301 typedef ExtendedHypercubeGraphBase Parent; … … 303 307 /// Constructs a hypercube graph with \c dim dimensions. 304 308 HypercubeGraph(int dim) { construct(dim); } 309 310 /// \brief Resizes the graph 311 /// 312 /// This function resizes the graph. It fully destroys and 313 /// rebuilds the structure, therefore the maps of the graph will be 314 /// reallocated automatically and the previous values will be lost. 315 void resize(int dim) { 316 Parent::notifier(Arc()).clear(); 317 Parent::notifier(Edge()).clear(); 318 Parent::notifier(Node()).clear(); 319 construct(dim); 320 Parent::notifier(Node()).build(); 321 Parent::notifier(Edge()).build(); 322 Parent::notifier(Arc()).build(); 323 } 305 324 306 325 /// \brief The number of dimensions. … … 321 340 /// 322 341 /// Gives back the dimension id of the given edge. 323 /// It is in the [0..dim-1] range.342 /// It is in the range <tt>[0..dim-1]</tt>. 324 343 int dimension(Edge edge) const { 325 344 return Parent::dimension(edge); … … 329 348 /// 330 349 /// Gives back the dimension id of the given arc. 331 /// It is in the [0..dim-1] range.350 /// It is in the range <tt>[0..dim-1]</tt>. 332 351 int dimension(Arc arc) const { 333 352 return Parent::dimension(arc); -
lemon/list_graph.h
r664 r788 22 22 ///\ingroup graphs 23 23 ///\file 24 ///\brief ListDigraph ,ListGraph classes.24 ///\brief ListDigraph and ListGraph classes. 25 25 26 26 #include <lemon/core.h> … … 32 32 33 33 namespace lemon { 34 35 class ListDigraph; 34 36 35 37 class ListDigraphBase { … … 63 65 class Node { 64 66 friend class ListDigraphBase; 67 friend class ListDigraph; 65 68 protected: 66 69 … … 78 81 class Arc { 79 82 friend class ListDigraphBase; 83 friend class ListDigraph; 80 84 protected: 81 85 … … 117 121 int n; 118 122 for(n = first_node; 119 n !=-1 && nodes[n].first_in== -1;123 n != -1 && nodes[n].first_out == -1; 120 124 n = nodes[n].next) {} 121 arc.id = (n == -1) ? -1 : nodes[n].first_ in;125 arc.id = (n == -1) ? -1 : nodes[n].first_out; 122 126 } 123 127 124 128 void next(Arc& arc) const { 125 if (arcs[arc.id].next_ in!= -1) {126 arc.id = arcs[arc.id].next_ in;129 if (arcs[arc.id].next_out != -1) { 130 arc.id = arcs[arc.id].next_out; 127 131 } else { 128 132 int n; 129 for(n = nodes[arcs[arc.id]. target].next;130 n !=-1 && nodes[n].first_in== -1;133 for(n = nodes[arcs[arc.id].source].next; 134 n != -1 && nodes[n].first_out == -1; 131 135 n = nodes[n].next) {} 132 arc.id = (n == -1) ? -1 : nodes[n].first_ in;136 arc.id = (n == -1) ? -1 : nodes[n].first_out; 133 137 } 134 138 } … … 312 316 ///A general directed graph structure. 313 317 314 ///\ref ListDigraph is a simple and fast <em>directed graph</em>315 ///implementation based on staticlinked lists that are stored in318 ///\ref ListDigraph is a versatile and fast directed graph 319 ///implementation based on linked lists that are stored in 316 320 ///\c std::vector structures. 317 321 /// 318 /// It conforms to the \ref concepts::Digraph "Digraph concept" and it319 ///a lso provides several useful additional functionalities.320 ///Most of themember functions and nested classes are documented322 ///This type fully conforms to the \ref concepts::Digraph "Digraph concept" 323 ///and it also provides several useful additional functionalities. 324 ///Most of its member functions and nested classes are documented 321 325 ///only in the concept class. 322 326 /// 323 327 ///\sa concepts::Digraph 324 328 ///\sa ListGraph 325 329 class ListDigraph : public ExtendedListDigraphBase { 326 330 typedef ExtendedListDigraphBase Parent; 327 331 328 332 private: 329 ///ListDigraph is \e not copy constructible. Use copyDigraph() instead. 330 331 ///ListDigraph is \e not copy constructible. Use copyDigraph() instead. 332 /// 333 /// Digraphs are \e not copy constructible. Use DigraphCopy instead. 333 334 ListDigraph(const ListDigraph &) :ExtendedListDigraphBase() {}; 334 ///\brief Assignment of ListDigraph to another one is \e not allowed. 335 ///Use copyDigraph() instead. 336 337 ///Assignment of ListDigraph to another one is \e not allowed. 338 ///Use copyDigraph() instead. 335 /// \brief Assignment of a digraph to another one is \e not allowed. 336 /// Use DigraphCopy instead. 339 337 void operator=(const ListDigraph &) {} 340 338 public: … … 348 346 ///Add a new node to the digraph. 349 347 350 /// Adda new node to the digraph.348 ///This function adds a new node to the digraph. 351 349 ///\return The new node. 352 350 Node addNode() { return Parent::addNode(); } … … 354 352 ///Add a new arc to the digraph. 355 353 356 /// Adda new arc to the digraph with source node \c s354 ///This function adds a new arc to the digraph with source node \c s 357 355 ///and target node \c t. 358 356 ///\return The new arc. 359 Arc addArc( const Node& s, const Node&t) {357 Arc addArc(Node s, Node t) { 360 358 return Parent::addArc(s, t); 361 359 } … … 363 361 ///\brief Erase a node from the digraph. 364 362 /// 365 ///Erase a node from the digraph. 366 /// 367 void erase(const Node& n) { Parent::erase(n); } 363 ///This function erases the given node from the digraph. 364 void erase(Node n) { Parent::erase(n); } 368 365 369 366 ///\brief Erase an arc from the digraph. 370 367 /// 371 ///Erase an arc from the digraph. 372 /// 373 void erase(const Arc& a) { Parent::erase(a); } 368 ///This function erases the given arc from the digraph. 369 void erase(Arc a) { Parent::erase(a); } 374 370 375 371 /// Node validity check 376 372 377 /// This function gives back true if the given node is valid, 378 /// ie. it is a real node of the graph. 379 /// 380 /// \warning A Node pointing to a removed item 381 /// could become valid again later if new nodes are 382 /// added to the graph. 373 /// This function gives back \c true if the given node is valid, 374 /// i.e. it is a real node of the digraph. 375 /// 376 /// \warning A removed node could become valid again if new nodes are 377 /// added to the digraph. 383 378 bool valid(Node n) const { return Parent::valid(n); } 384 379 385 380 /// Arc validity check 386 381 387 /// This function gives back true if the given arc is valid, 388 /// ie. it is a real arc of the graph. 389 /// 390 /// \warning An Arc pointing to a removed item 391 /// could become valid again later if new nodes are 392 /// added to the graph. 382 /// This function gives back \c true if the given arc is valid, 383 /// i.e. it is a real arc of the digraph. 384 /// 385 /// \warning A removed arc could become valid again if new arcs are 386 /// added to the digraph. 393 387 bool valid(Arc a) const { return Parent::valid(a); } 394 388 395 /// Change the target of \c a to \c n 396 397 /// Change the target of \c a to \c n 398 /// 399 ///\note The <tt>ArcIt</tt>s and <tt>OutArcIt</tt>s referencing 400 ///the changed arc remain valid. However <tt>InArcIt</tt>s are 401 ///invalidated. 389 /// Change the target node of an arc 390 391 /// This function changes the target node of the given arc \c a to \c n. 392 /// 393 ///\note \c ArcIt and \c OutArcIt iterators referencing the changed 394 ///arc remain valid, however \c InArcIt iterators are invalidated. 402 395 /// 403 396 ///\warning This functionality cannot be used together with the Snapshot … … 406 399 Parent::changeTarget(a,n); 407 400 } 408 /// Change the source of \c a to \c n 409 410 /// Change the source of \c a to \c n 411 /// 412 ///\note The <tt>InArcIt</tt>s referencing the changed arc remain 413 ///valid. However the <tt>ArcIt</tt>s and <tt>OutArcIt</tt>s are 414 ///invalidated. 401 /// Change the source node of an arc 402 403 /// This function changes the source node of the given arc \c a to \c n. 404 /// 405 ///\note \c InArcIt iterators referencing the changed arc remain 406 ///valid, however \c ArcIt and \c OutArcIt iterators are invalidated. 415 407 /// 416 408 ///\warning This functionality cannot be used together with the Snapshot … … 420 412 } 421 413 422 /// Invertthe direction of an arc.423 424 /// \note The <tt>ArcIt</tt>s referencing the changed arc remain425 /// valid. However <tt>OutArcIt</tt>s and <tt>InArcIt</tt>s are426 /// invalidated.414 /// Reverse the direction of an arc. 415 416 /// This function reverses the direction of the given arc. 417 ///\note \c ArcIt, \c OutArcIt and \c InArcIt iterators referencing 418 ///the changed arc are invalidated. 427 419 /// 428 420 ///\warning This functionality cannot be used together with the Snapshot 429 421 ///feature. 430 void reverseArc(Arc e) { 431 Node t=target(e); 432 changeTarget(e,source(e)); 433 changeSource(e,t); 434 } 435 436 /// Reserve memory for nodes. 437 438 /// Using this function it is possible to avoid the superfluous memory 439 /// allocation: if you know that the digraph you want to build will 440 /// be very large (e.g. it will contain millions of nodes and/or arcs) 441 /// then it is worth reserving space for this amount before starting 442 /// to build the digraph. 443 /// \sa reserveArc 444 void reserveNode(int n) { nodes.reserve(n); }; 445 446 /// Reserve memory for arcs. 447 448 /// Using this function it is possible to avoid the superfluous memory 449 /// allocation: if you know that the digraph you want to build will 450 /// be very large (e.g. it will contain millions of nodes and/or arcs) 451 /// then it is worth reserving space for this amount before starting 452 /// to build the digraph. 453 /// \sa reserveNode 454 void reserveArc(int m) { arcs.reserve(m); }; 422 void reverseArc(Arc a) { 423 Node t=target(a); 424 changeTarget(a,source(a)); 425 changeSource(a,t); 426 } 455 427 456 428 ///Contract two nodes. 457 429 458 ///This function contracts two nodes. 459 ///Node \p b will be removed but instead of deleting 460 ///incident arcs, they will be joined to \p a. 461 ///The last parameter \p r controls whether to remove loops. \c true 462 ///means that loops will be removed. 463 /// 464 ///\note The <tt>ArcIt</tt>s referencing a moved arc remain 465 ///valid. However <tt>InArcIt</tt>s and <tt>OutArcIt</tt>s 466 ///may be invalidated. 430 ///This function contracts the given two nodes. 431 ///Node \c v is removed, but instead of deleting its 432 ///incident arcs, they are joined to node \c u. 433 ///If the last parameter \c r is \c true (this is the default value), 434 ///then the newly created loops are removed. 435 /// 436 ///\note The moved arcs are joined to node \c u using changeSource() 437 ///or changeTarget(), thus \c ArcIt and \c OutArcIt iterators are 438 ///invalidated for the outgoing arcs of node \c v and \c InArcIt 439 ///iterators are invalidated for the incomming arcs of \c v. 440 ///Moreover all iterators referencing node \c v or the removed 441 ///loops are also invalidated. Other iterators remain valid. 467 442 /// 468 443 ///\warning This functionality cannot be used together with the Snapshot 469 444 ///feature. 470 void contract(Node a, Node b, bool r = true)445 void contract(Node u, Node v, bool r = true) 471 446 { 472 for(OutArcIt e(*this, b);e!=INVALID;) {447 for(OutArcIt e(*this,v);e!=INVALID;) { 473 448 OutArcIt f=e; 474 449 ++f; 475 if(r && target(e)== a) erase(e);476 else changeSource(e, a);450 if(r && target(e)==u) erase(e); 451 else changeSource(e,u); 477 452 e=f; 478 453 } 479 for(InArcIt e(*this, b);e!=INVALID;) {454 for(InArcIt e(*this,v);e!=INVALID;) { 480 455 InArcIt f=e; 481 456 ++f; 482 if(r && source(e)== a) erase(e);483 else changeTarget(e, a);457 if(r && source(e)==u) erase(e); 458 else changeTarget(e,u); 484 459 e=f; 485 460 } 486 erase( b);461 erase(v); 487 462 } 488 463 489 464 ///Split a node. 490 465 491 ///This function splits a node. First a new node is added to the digraph, 492 ///then the source of each outgoing arc of \c n is moved to this new node. 493 ///If \c connect is \c true (this is the default value), then a new arc 494 ///from \c n to the newly created node is also added. 466 ///This function splits the given node. First, a new node is added 467 ///to the digraph, then the source of each outgoing arc of node \c n 468 ///is moved to this new node. 469 ///If the second parameter \c connect is \c true (this is the default 470 ///value), then a new arc from node \c n to the newly created node 471 ///is also added. 495 472 ///\return The newly created node. 496 473 /// 497 ///\note The <tt>ArcIt</tt>s referencing a moved arc remain 498 ///valid. However <tt>InArcIt</tt>s and <tt>OutArcIt</tt>s may 499 ///be invalidated. 500 /// 501 ///\warning This functionality cannot be used in conjunction with the 474 ///\note All iterators remain valid. 475 /// 476 ///\warning This functionality cannot be used together with the 502 477 ///Snapshot feature. 503 478 Node split(Node n, bool connect = true) { 504 479 Node b = addNode(); 505 for(OutArcIt e(*this,n);e!=INVALID;) { 506 OutArcIt f=e; 507 ++f; 508 changeSource(e,b); 509 e=f; 480 nodes[b.id].first_out=nodes[n.id].first_out; 481 nodes[n.id].first_out=-1; 482 for(int i=nodes[b.id].first_out; i!=-1; i=arcs[i].next_out) { 483 arcs[i].source=b.id; 510 484 } 511 485 if (connect) addArc(n,b); … … 515 489 ///Split an arc. 516 490 517 ///This function splits an arc. First a new node \c b is added to518 /// the digraph, then the original arc is re-targeted to \c519 /// b. Finally an arc from \c b to the original target is added.520 /// 491 ///This function splits the given arc. First, a new node \c v is 492 ///added to the digraph, then the target node of the original arc 493 ///is set to \c v. Finally, an arc from \c v to the original target 494 ///is added. 521 495 ///\return The newly created node. 496 /// 497 ///\note \c InArcIt iterators referencing the original arc are 498 ///invalidated. Other iterators remain valid. 522 499 /// 523 500 ///\warning This functionality cannot be used together with the 524 501 ///Snapshot feature. 525 Node split(Arc e) { 526 Node b = addNode(); 527 addArc(b,target(e)); 528 changeTarget(e,b); 529 return b; 530 } 502 Node split(Arc a) { 503 Node v = addNode(); 504 addArc(v,target(a)); 505 changeTarget(a,v); 506 return v; 507 } 508 509 ///Clear the digraph. 510 511 ///This function erases all nodes and arcs from the digraph. 512 /// 513 void clear() { 514 Parent::clear(); 515 } 516 517 /// Reserve memory for nodes. 518 519 /// Using this function, it is possible to avoid superfluous memory 520 /// allocation: if you know that the digraph you want to build will 521 /// be large (e.g. it will contain millions of nodes and/or arcs), 522 /// then it is worth reserving space for this amount before starting 523 /// to build the digraph. 524 /// \sa reserveArc() 525 void reserveNode(int n) { nodes.reserve(n); }; 526 527 /// Reserve memory for arcs. 528 529 /// Using this function, it is possible to avoid superfluous memory 530 /// allocation: if you know that the digraph you want to build will 531 /// be large (e.g. it will contain millions of nodes and/or arcs), 532 /// then it is worth reserving space for this amount before starting 533 /// to build the digraph. 534 /// \sa reserveNode() 535 void reserveArc(int m) { arcs.reserve(m); }; 531 536 532 537 /// \brief Class to make a snapshot of the digraph and restore … … 538 543 /// restore() function. 539 544 /// 540 /// \warning Arc and node deletions and other modifications (e.g. 541 /// contracting, splitting, reversing arcs or nodes) cannot be 545 /// \note After a state is restored, you cannot restore a later state, 546 /// i.e. you cannot add the removed nodes and arcs again using 547 /// another Snapshot instance. 548 /// 549 /// \warning Node and arc deletions and other modifications (e.g. 550 /// reversing, contracting, splitting arcs or nodes) cannot be 542 551 /// restored. These events invalidate the snapshot. 552 /// However the arcs and nodes that were added to the digraph after 553 /// making the current snapshot can be removed without invalidating it. 543 554 class Snapshot { 544 555 protected: … … 710 721 /// 711 722 /// Default constructor. 712 /// To actually make a snapshot you must call save().723 /// You have to call save() to actually make a snapshot. 713 724 Snapshot() 714 725 : digraph(0), node_observer_proxy(*this), … … 717 728 /// \brief Constructor that immediately makes a snapshot. 718 729 /// 719 /// This constructor immediately makes a snapshot of the digraph. 720 /// \param _digraph The digraph we make a snapshot of. 721 Snapshot(ListDigraph &_digraph) 730 /// This constructor immediately makes a snapshot of the given digraph. 731 Snapshot(ListDigraph &gr) 722 732 : node_observer_proxy(*this), 723 733 arc_observer_proxy(*this) { 724 attach( _digraph);734 attach(gr); 725 735 } 726 736 727 737 /// \brief Make a snapshot. 728 738 /// 729 /// Make a snapshot of the digraph. 730 /// 731 /// This function can be called more than once. In case of a repeated 739 /// This function makes a snapshot of the given digraph. 740 /// It can be called more than once. In case of a repeated 732 741 /// call, the previous snapshot gets lost. 733 /// \param _digraph The digraph we make the snapshot of. 734 void save(ListDigraph &_digraph) { 742 void save(ListDigraph &gr) { 735 743 if (attached()) { 736 744 detach(); 737 745 clear(); 738 746 } 739 attach( _digraph);747 attach(gr); 740 748 } 741 749 742 750 /// \brief Undo the changes until the last snapshot. 743 // 744 /// Undo the changes until the last snapshot created by save(). 751 /// 752 /// This function undos the changes until the last snapshot 753 /// created by save() or Snapshot(ListDigraph&). 754 /// 755 /// \warning This method invalidates the snapshot, i.e. repeated 756 /// restoring is not supported unless you call save() again. 745 757 void restore() { 746 758 detach(); … … 756 768 } 757 769 758 /// \brief Gives back true whenthe snapshot is valid.770 /// \brief Returns \c true if the snapshot is valid. 759 771 /// 760 /// Gives back true whenthe snapshot is valid.772 /// This function returns \c true if the snapshot is valid. 761 773 bool valid() const { 762 774 return attached(); … … 795 807 796 808 typedef ListGraphBase Graph; 797 798 class Node;799 class Arc;800 class Edge;801 809 802 810 class Node { … … 848 856 bool operator<(const Arc& arc) const {return id < arc.id;} 849 857 }; 850 851 852 858 853 859 ListGraphBase() … … 1165 1171 ///A general undirected graph structure. 1166 1172 1167 ///\ref ListGraph is a simple and fast <em>undirected graph</em>1168 ///implementation based on staticlinked lists that are stored in1173 ///\ref ListGraph is a versatile and fast undirected graph 1174 ///implementation based on linked lists that are stored in 1169 1175 ///\c std::vector structures. 1170 1176 /// 1171 /// It conforms to the \ref concepts::Graph "Graph concept" and it1172 ///a lso provides several useful additional functionalities.1173 ///Most of themember functions and nested classes are documented1177 ///This type fully conforms to the \ref concepts::Graph "Graph concept" 1178 ///and it also provides several useful additional functionalities. 1179 ///Most of its member functions and nested classes are documented 1174 1180 ///only in the concept class. 1175 1181 /// 1176 1182 ///\sa concepts::Graph 1177 1183 ///\sa ListDigraph 1178 1184 class ListGraph : public ExtendedListGraphBase { 1179 1185 typedef ExtendedListGraphBase Parent; 1180 1186 1181 1187 private: 1182 ///ListGraph is \e not copy constructible. Use copyGraph() instead. 1183 1184 ///ListGraph is \e not copy constructible. Use copyGraph() instead. 1185 /// 1188 /// Graphs are \e not copy constructible. Use GraphCopy instead. 1186 1189 ListGraph(const ListGraph &) :ExtendedListGraphBase() {}; 1187 ///\brief Assignment of ListGraph to another one is \e not allowed. 1188 ///Use copyGraph() instead. 1189 1190 ///Assignment of ListGraph to another one is \e not allowed. 1191 ///Use copyGraph() instead. 1190 /// \brief Assignment of a graph to another one is \e not allowed. 1191 /// Use GraphCopy instead. 1192 1192 void operator=(const ListGraph &) {} 1193 1193 public: … … 1202 1202 /// \brief Add a new node to the graph. 1203 1203 /// 1204 /// Adda new node to the graph.1204 /// This function adds a new node to the graph. 1205 1205 /// \return The new node. 1206 1206 Node addNode() { return Parent::addNode(); } … … 1208 1208 /// \brief Add a new edge to the graph. 1209 1209 /// 1210 /// Add a new edge to the graph with source node \c s 1211 /// and target node \c t. 1210 /// This function adds a new edge to the graph between nodes 1211 /// \c u and \c v with inherent orientation from node \c u to 1212 /// node \c v. 1212 1213 /// \return The new edge. 1213 Edge addEdge(const Node& s, const Node& t) { 1214 return Parent::addEdge(s, t); 1215 } 1216 1217 /// \brief Erase a node from the graph. 1218 /// 1219 /// Erase a node from the graph. 1220 /// 1221 void erase(const Node& n) { Parent::erase(n); } 1222 1223 /// \brief Erase an edge from the graph. 1224 /// 1225 /// Erase an edge from the graph. 1226 /// 1227 void erase(const Edge& e) { Parent::erase(e); } 1214 Edge addEdge(Node u, Node v) { 1215 return Parent::addEdge(u, v); 1216 } 1217 1218 ///\brief Erase a node from the graph. 1219 /// 1220 /// This function erases the given node from the graph. 1221 void erase(Node n) { Parent::erase(n); } 1222 1223 ///\brief Erase an edge from the graph. 1224 /// 1225 /// This function erases the given edge from the graph. 1226 void erase(Edge e) { Parent::erase(e); } 1228 1227 /// Node validity check 1229 1228 1230 /// This function gives back true if the given node is valid, 1231 /// ie. it is a real node of the graph. 1232 /// 1233 /// \warning A Node pointing to a removed item 1234 /// could become valid again later if new nodes are 1229 /// This function gives back \c true if the given node is valid, 1230 /// i.e. it is a real node of the graph. 1231 /// 1232 /// \warning A removed node could become valid again if new nodes are 1235 1233 /// added to the graph. 1236 1234 bool valid(Node n) const { return Parent::valid(n); } 1235 /// Edge validity check 1236 1237 /// This function gives back \c true if the given edge is valid, 1238 /// i.e. it is a real edge of the graph. 1239 /// 1240 /// \warning A removed edge could become valid again if new edges are 1241 /// added to the graph. 1242 bool valid(Edge e) const { return Parent::valid(e); } 1237 1243 /// Arc validity check 1238 1244 1239 /// This function gives back true if the given arc is valid, 1240 /// ie. it is a real arc of the graph. 1241 /// 1242 /// \warning An Arc pointing to a removed item 1243 /// could become valid again later if new edges are 1245 /// This function gives back \c true if the given arc is valid, 1246 /// i.e. it is a real arc of the graph. 1247 /// 1248 /// \warning A removed arc could become valid again if new edges are 1244 1249 /// added to the graph. 1245 1250 bool valid(Arc a) const { return Parent::valid(a); } 1246 /// Edge validity check 1247 1248 /// This function gives back true if the given edge is valid, 1249 /// ie. it is a real arc of the graph. 1250 /// 1251 /// \warning A Edge pointing to a removed item 1252 /// could become valid again later if new edges are 1253 /// added to the graph. 1254 bool valid(Edge e) const { return Parent::valid(e); } 1255 /// \brief Change the end \c u of \c e to \c n 1256 /// 1257 /// This function changes the end \c u of \c e to node \c n. 1258 /// 1259 ///\note The <tt>EdgeIt</tt>s and <tt>ArcIt</tt>s referencing the 1260 ///changed edge are invalidated and if the changed node is the 1261 ///base node of an iterator then this iterator is also 1262 ///invalidated. 1251 1252 /// \brief Change the first node of an edge. 1253 /// 1254 /// This function changes the first node of the given edge \c e to \c n. 1255 /// 1256 ///\note \c EdgeIt and \c ArcIt iterators referencing the 1257 ///changed edge are invalidated and all other iterators whose 1258 ///base node is the changed node are also invalidated. 1263 1259 /// 1264 1260 ///\warning This functionality cannot be used together with the … … 1267 1263 Parent::changeU(e,n); 1268 1264 } 1269 /// \brief Change the end \c v of \c e to \c n 1270 /// 1271 /// This function changes the end \c v of \c e to \c n. 1272 /// 1273 ///\note The <tt>EdgeIt</tt>s referencing the changed edge remain 1274 ///valid, however <tt>ArcIt</tt>s and if the changed node is the 1275 ///base node of an iterator then this iterator is invalidated. 1265 /// \brief Change the second node of an edge. 1266 /// 1267 /// This function changes the second node of the given edge \c e to \c n. 1268 /// 1269 ///\note \c EdgeIt iterators referencing the changed edge remain 1270 ///valid, however \c ArcIt iterators referencing the changed edge and 1271 ///all other iterators whose base node is the changed node are also 1272 ///invalidated. 1276 1273 /// 1277 1274 ///\warning This functionality cannot be used together with the … … 1280 1277 Parent::changeV(e,n); 1281 1278 } 1279 1282 1280 /// \brief Contract two nodes. 1283 1281 /// 1284 /// This function contracts two nodes. 1285 /// Node \p b will be removed but instead of deleting 1286 /// its neighboring arcs, they will be joined to \p a. 1287 /// The last parameter \p r controls whether to remove loops. \c true 1288 /// means that loops will be removed. 1289 /// 1290 /// \note The <tt>ArcIt</tt>s referencing a moved arc remain 1291 /// valid. 1282 /// This function contracts the given two nodes. 1283 /// Node \c b is removed, but instead of deleting 1284 /// its incident edges, they are joined to node \c a. 1285 /// If the last parameter \c r is \c true (this is the default value), 1286 /// then the newly created loops are removed. 1287 /// 1288 /// \note The moved edges are joined to node \c a using changeU() 1289 /// or changeV(), thus all edge and arc iterators whose base node is 1290 /// \c b are invalidated. 1291 /// Moreover all iterators referencing node \c b or the removed 1292 /// loops are also invalidated. Other iterators remain valid. 1292 1293 /// 1293 1294 ///\warning This functionality cannot be used together with the … … 1308 1309 } 1309 1310 1311 ///Clear the graph. 1312 1313 ///This function erases all nodes and arcs from the graph. 1314 /// 1315 void clear() { 1316 Parent::clear(); 1317 } 1318 1319 /// Reserve memory for nodes. 1320 1321 /// Using this function, it is possible to avoid superfluous memory 1322 /// allocation: if you know that the graph you want to build will 1323 /// be large (e.g. it will contain millions of nodes and/or edges), 1324 /// then it is worth reserving space for this amount before starting 1325 /// to build the graph. 1326 /// \sa reserveEdge() 1327 void reserveNode(int n) { nodes.reserve(n); }; 1328 1329 /// Reserve memory for edges. 1330 1331 /// Using this function, it is possible to avoid superfluous memory 1332 /// allocation: if you know that the graph you want to build will 1333 /// be large (e.g. it will contain millions of nodes and/or edges), 1334 /// then it is worth reserving space for this amount before starting 1335 /// to build the graph. 1336 /// \sa reserveNode() 1337 void reserveEdge(int m) { arcs.reserve(2 * m); }; 1310 1338 1311 1339 /// \brief Class to make a snapshot of the graph and restore … … 1317 1345 /// using the restore() function. 1318 1346 /// 1319 /// \warning Edge and node deletions and other modifications 1320 /// (e.g. changing nodes of edges, contracting nodes) cannot be 1321 /// restored. These events invalidate the snapshot. 1347 /// \note After a state is restored, you cannot restore a later state, 1348 /// i.e. you cannot add the removed nodes and edges again using 1349 /// another Snapshot instance. 1350 /// 1351 /// \warning Node and edge deletions and other modifications 1352 /// (e.g. changing the end-nodes of edges or contracting nodes) 1353 /// cannot be restored. These events invalidate the snapshot. 1354 /// However the edges and nodes that were added to the graph after 1355 /// making the current snapshot can be removed without invalidating it. 1322 1356 class Snapshot { 1323 1357 protected: … … 1489 1523 /// 1490 1524 /// Default constructor. 1491 /// To actually make a snapshot you must call save().1525 /// You have to call save() to actually make a snapshot. 1492 1526 Snapshot() 1493 1527 : graph(0), node_observer_proxy(*this), … … 1496 1530 /// \brief Constructor that immediately makes a snapshot. 1497 1531 /// 1498 /// This constructor immediately makes a snapshot of the graph. 1499 /// \param _graph The graph we make a snapshot of. 1500 Snapshot(ListGraph &_graph) 1532 /// This constructor immediately makes a snapshot of the given graph. 1533 Snapshot(ListGraph &gr) 1501 1534 : node_observer_proxy(*this), 1502 1535 edge_observer_proxy(*this) { 1503 attach( _graph);1536 attach(gr); 1504 1537 } 1505 1538 1506 1539 /// \brief Make a snapshot. 1507 1540 /// 1508 /// Make a snapshot of the graph. 1509 /// 1510 /// This function can be called more than once. In case of a repeated 1541 /// This function makes a snapshot of the given graph. 1542 /// It can be called more than once. In case of a repeated 1511 1543 /// call, the previous snapshot gets lost. 1512 /// \param _graph The graph we make the snapshot of. 1513 void save(ListGraph &_graph) { 1544 void save(ListGraph &gr) { 1514 1545 if (attached()) { 1515 1546 detach(); 1516 1547 clear(); 1517 1548 } 1518 attach( _graph);1549 attach(gr); 1519 1550 } 1520 1551 1521 1552 /// \brief Undo the changes until the last snapshot. 1522 // 1523 /// Undo the changes until the last snapshot created by save(). 1553 /// 1554 /// This function undos the changes until the last snapshot 1555 /// created by save() or Snapshot(ListGraph&). 1556 /// 1557 /// \warning This method invalidates the snapshot, i.e. repeated 1558 /// restoring is not supported unless you call save() again. 1524 1559 void restore() { 1525 1560 detach(); … … 1535 1570 } 1536 1571 1537 /// \brief Gives back true whenthe snapshot is valid.1572 /// \brief Returns \c true if the snapshot is valid. 1538 1573 /// 1539 /// Gives back true whenthe snapshot is valid.1574 /// This function returns \c true if the snapshot is valid. 1540 1575 bool valid() const { 1541 1576 return attached(); -
lemon/lp_base.h
r631 r793 944 944 virtual int _addRow() = 0; 945 945 946 virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u) { 947 int row = _addRow(); 948 _setRowCoeffs(row, b, e); 949 _setRowLowerBound(row, l); 950 _setRowUpperBound(row, u); 951 return row; 952 } 953 946 954 virtual void _eraseCol(int col) = 0; 947 955 virtual void _eraseRow(int row) = 0; … … 1208 1216 ///\return The created row. 1209 1217 Row addRow(Value l,const Expr &e, Value u) { 1210 Row r=addRow(); 1211 row(r,l,e,u); 1218 Row r; 1219 e.simplify(); 1220 r._id = _addRowId(_addRow(l - *e, ExprIterator(e.comps.begin(), cols), 1221 ExprIterator(e.comps.end(), cols), u - *e)); 1212 1222 return r; 1213 1223 } … … 1218 1228 ///\return The created row. 1219 1229 Row addRow(const Constr &c) { 1220 Row r=addRow(); 1221 row(r,c); 1230 Row r; 1231 c.expr().simplify(); 1232 r._id = _addRowId(_addRow(c.lowerBounded()?c.lowerBound():-INF, 1233 ExprIterator(c.expr().comps.begin(), cols), 1234 ExprIterator(c.expr().comps.end(), cols), 1235 c.upperBounded()?c.upperBound():INF)); 1222 1236 return r; 1223 1237 } -
lemon/lp_skeleton.cc
r623 r793 29 29 30 30 int SkeletonSolverBase::_addRow() 31 { 32 return ++row_num; 33 } 34 35 int SkeletonSolverBase::_addRow(Value, ExprIterator, ExprIterator, Value) 31 36 { 32 37 return ++row_num; -
lemon/lp_skeleton.h
r623 r793 45 45 /// \e 46 46 virtual int _addRow(); 47 /// \e 48 virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u); 47 49 /// \e 48 50 virtual void _eraseCol(int i); -
lemon/maps.h
r664 r773 23 23 #include <functional> 24 24 #include <vector> 25 #include <map> 25 26 26 27 #include <lemon/core.h> … … 29 30 ///\ingroup maps 30 31 ///\brief Miscellaneous property maps 31 32 #include <map>33 32 34 33 namespace lemon { … … 58 57 /// but data written to it is not required (i.e. it will be sent to 59 58 /// <tt>/dev/null</tt>). 60 /// It conforms t he \ref concepts::ReadWriteMap "ReadWriteMap" concept.59 /// It conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. 61 60 /// 62 61 /// \sa ConstMap … … 91 90 /// 92 91 /// In other aspects it is equivalent to \c NullMap. 93 /// So it conforms t he \ref concepts::ReadWriteMap "ReadWriteMap"92 /// So it conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" 94 93 /// concept, but it absorbs the data written to it. 95 94 /// … … 160 159 /// 161 160 /// In other aspects it is equivalent to \c NullMap. 162 /// So it conforms t he \ref concepts::ReadWriteMap "ReadWriteMap"161 /// So it conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" 163 162 /// concept, but it absorbs the data written to it. 164 163 /// … … 234 233 /// It can be used with some data structures, for example 235 234 /// \c UnionFind, \c BinHeap, when the used items are small 236 /// integers. This map conforms t he \ref concepts::ReferenceMap235 /// integers. This map conforms to the \ref concepts::ReferenceMap 237 236 /// "ReferenceMap" concept. 238 237 /// … … 342 341 /// stored actually. This value can be different from the default 343 342 /// contructed value (i.e. \c %Value()). 344 /// This type conforms t he \ref concepts::ReferenceMap "ReferenceMap"343 /// This type conforms to the \ref concepts::ReferenceMap "ReferenceMap" 345 344 /// concept. 346 345 /// … … 708 707 /// The \c Key type of it is inherited from \c M and the \c Value 709 708 /// type is \c V. 710 /// This type conforms t he \ref concepts::ReadMap "ReadMap" concept.709 /// This type conforms to the \ref concepts::ReadMap "ReadMap" concept. 711 710 /// 712 711 /// The simplest way of using this map is through the convertMap() … … 1791 1790 /// \code 1792 1791 /// std::vector<Node> v; 1793 /// dfs(g ,s).processedMap(loggerBoolMap(std::back_inserter(v))).run();1792 /// dfs(g).processedMap(loggerBoolMap(std::back_inserter(v))).run(s); 1794 1793 /// \endcode 1795 1794 /// \code 1796 1795 /// std::vector<Node> v(countNodes(g)); 1797 /// dfs(g ,s).processedMap(loggerBoolMap(v.begin())).run();1796 /// dfs(g).processedMap(loggerBoolMap(v.begin())).run(s); 1798 1797 /// \endcode 1799 1798 /// … … 1819 1818 /// 1820 1819 /// IdMap provides a unique and immutable id for each item of the 1821 /// same type (\c Node, \c Arc or \c Edge) in a graph. This id is 1820 /// same type (\c Node, \c Arc or \c Edge) in a graph. This id is 1822 1821 /// - \b unique: different items get different ids, 1823 1822 /// - \b immutable: the id of an item does not change (even if you … … 1827 1826 /// the items stored in the graph, which is returned by the \c id() 1828 1827 /// function of the graph. This map can be inverted with its member 1829 /// class \c InverseMap or with the \c operator() member.1828 /// class \c InverseMap or with the \c operator()() member. 1830 1829 /// 1831 1830 /// \tparam GR The