RhodeCode

ACLOCAL_AMFLAGS = -I m4

AM_CPPFLAGS = -I$(top_srcdir) -I$(top_builddir)

LDADD = $(top_builddir)/lemon/libemon.la

EXTRA_DIST = \

	LICENSE \

	m4/lx_check_cplex.m4 \

	m4/lx_check_glpk.m4 \

	m4/lx_check_soplex.m4 \

	CMakeLists.txt \

	cmake

pkgconfigdir = $(libdir)/pkgconfig

lemondir = $(pkgincludedir)

bitsdir = $(lemondir)/bits

conceptdir = $(lemondir)/concepts

pkgconfig_DATA =

lib_LTLIBRARIES =

lemon_HEADERS =

bits_HEADERS =

concept_HEADERS =

noinst_HEADERS =

noinst_PROGRAMS =

bin_PROGRAMS =

check_PROGRAMS =

TESTS =

XFAIL_TESTS =

include lemon/Makefile.am

include test/Makefile.am

include doc/Makefile.am

include demo/Makefile.am

include tools/Makefile.am

MRPROPERFILES = \

	aclocal.m4 \

	config.h.in \

	config.h.in~ \

	configure \

	Makefile.in \

	build-aux/config.guess \

	build-aux/config.sub \

	build-aux/depcomp \

	build-aux/install-sh \

	build-aux/ltmain.sh \

	build-aux/missing \

	doc/doxygen.log

mrproper:

	$(MAKE) $(AM_MAKEFLAGS) maintainer-clean

	-rm -f $(MRPROPERFILES)

dist-bz2: dist

	zcat $(PACKAGE)-$(VERSION).tar.gz | \

	bzip2 --best -c > $(PACKAGE)-$(VERSION).tar.bz2

distcheck-bz2: distcheck

	zcat $(PACKAGE)-$(VERSION).tar.gz | \

	bzip2 --best -c > $(PACKAGE)-$(VERSION).tar.bz2

.PHONY: mrproper dist-bz2 distcheck-bz2

==================================================================

LEMON - a Library of Efficient Models and Optimization in Networks

==================================================================

LEMON is an open source library written in C++. It provides

easy-to-use implementations of common data structures and algorithms

in the area of optimization and helps implementing new ones. The main

focus is on graphs and graph algorithms, thus it is especially

suitable for solving design and optimization problems of

telecommunication networks. To achieve wide usability its data

structures and algorithms provide generic interfaces.

Contents

========

LICENSE

   Copying, distribution and modification conditions and terms.

INSTALL

   General building and installation instructions.

lemon/

   Source code of LEMON library.

doc/

   Documentation of LEMON. The starting page is doc/html/index.html.

demo/

   Some example programs to make you easier to get familiar with LEMON.

test/

   Contains programs to check the integrity and correctness of LEMON.

tools/

   Various utilities related to LEMON.

dnl Process this file with autoconf to produce a configure script.

dnl Version information.

m4_define([lemon_version_number],

	[m4_normalize(esyscmd([echo ${LEMON_VERSION}]))])

dnl m4_define([lemon_version_number], [])

m4_define([lemon_hg_path], [m4_normalize(esyscmd([./scripts/chg-len.py]))])

m4_define([lemon_hg_revision], [m4_normalize(esyscmd([hg id -i]))])

m4_define([lemon_version], [ifelse(lemon_version_number(),

			   [],

			   [lemon_hg_path().lemon_hg_revision()],

			   [lemon_version_number()])])

AC_PREREQ([2.59])

AC_INIT([LEMON], [lemon_version()], [lemon-user@lemon.cs.elte.hu], [lemon])

AC_CONFIG_AUX_DIR([build-aux])

AC_CONFIG_MACRO_DIR([m4])

AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects nostdinc])

AC_CONFIG_SRCDIR([lemon/list_graph.h])

AC_CONFIG_HEADERS([config.h lemon/config.h])

lx_cmdline_cxxflags_set=${CXXFLAGS+set}

dnl Do compilation tests using the C++ compiler.

AC_LANG([C++])

dnl Checks for programs.

AC_PROG_CXX

AC_PROG_CXXCPP

AC_PROG_INSTALL

AC_DISABLE_SHARED

AC_PROG_LIBTOOL

AC_CHECK_PROG([doxygen_found],[doxygen],[yes],[no])

AC_CHECK_PROG([gs_found],[gs],[yes],[no])

dnl Detect Intel compiler.

AC_MSG_CHECKING([whether we are using the Intel C++ compiler])

AC_COMPILE_IFELSE([#ifndef __INTEL_COMPILER

choke me

#endif], [ICC=[yes]], [ICC=[no]])

if test x"$ICC" = x"yes"; then

  AC_MSG_RESULT([yes])

else

  AC_MSG_RESULT([no])

fi

dnl Set custom compiler flags when using g++.

if test x"$lx_cmdline_cxxflags_set" != x"set" -a "$GXX" = yes -a "$ICC" = no; then

  CXXFLAGS="$CXXFLAGS -Wall -W -Wall -W -Wunused -Wformat=2 -Wctor-dtor-privacy -Wnon-virtual-dtor -Wno-char-subscripts -Wwrite-strings -Wno-char-subscripts -Wreturn-type -Wcast-qual -Wcast-align -Wsign-promo -Woverloaded-virtual -Woverloaded-virtual -ansi -fno-strict-aliasing -Wold-style-cast -Wno-unknown-pragmas"

fi

dnl Checks for libraries.

#LX_CHECK_GLPK

#LX_CHECK_CPLEX

#LX_CHECK_SOPLEX

dnl Disable/enable building the demo programs.

AC_ARG_ENABLE([demo],

AS_HELP_STRING([--enable-demo], [build the demo programs])

AS_HELP_STRING([--disable-demo], [do not build the demo programs @<:@default@:>@]),

              [], [enable_demo=no])

AC_MSG_CHECKING([whether to build the demo programs])

if test x"$enable_demo" != x"no"; then

  AC_MSG_RESULT([yes])

else

  AC_MSG_RESULT([no])

fi

AM_CONDITIONAL([WANT_DEMO], [test x"$enable_demo" != x"no"])

dnl Disable/enable building the binary tools.

AC_ARG_ENABLE([tools],

AS_HELP_STRING([--enable-tools], [build additional tools @<:@default@:>@])

AS_HELP_STRING([--disable-tools], [do not build additional tools]),

              [], [enable_tools=yes])

AC_MSG_CHECKING([whether to build the additional tools])

if test x"$enable_tools" != x"no"; then

  AC_MSG_RESULT([yes])

else

  AC_MSG_RESULT([no])

fi

AM_CONDITIONAL([WANT_TOOLS], [test x"$enable_tools" != x"no"])

dnl Checks for header files.

AC_CHECK_HEADERS(limits.h sys/time.h sys/times.h unistd.h)

dnl Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST

AC_C_INLINE

AC_TYPE_SIZE_T

AC_HEADER_TIME

AC_STRUCT_TM

dnl Checks for library functions.

AC_HEADER_STDC

AC_CHECK_FUNCS(gettimeofday times ctime_r)

dnl Add dependencies on files generated by configure.

AC_SUBST([CONFIG_STATUS_DEPENDENCIES],

  ['$(top_srcdir)/doc/Doxyfile.in $(top_srcdir)/lemon/lemon.pc.in'])

AC_CONFIG_FILES([

Makefile

doc/Doxyfile

lemon/lemon.pc

])

AC_OUTPUT

echo

echo '****************************** SUMMARY ******************************'

echo

echo Package version............... : $PACKAGE-$VERSION

echo

echo C++ compiler.................. : $CXX

echo C++ compiles flags............ : $CXXFLAGS

echo

#echo GLPK support.................. : $lx_glpk_found

#echo CPLEX support................. : $lx_cplex_found

#echo SOPLEX support................ : $lx_soplex_found

#echo

echo Build demo programs........... : $enable_demo

echo Build additional tools........ : $enable_tools

echo

echo The packace will be installed in

echo -n '  '

echo $prefix.

echo

echo '*********************************************************************'

echo

echo Configure complete, now type \'make\' and then \'make install\'.

echo

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Copyright (C) 2003-2008

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

///\ingroup demos

///\file

///\brief Argument parser demo

///

/// This example shows how the argument parser can be used.

///

/// \include arg_parser_demo.cc

#include <lemon/arg_parser.h>

using namespace lemon;

{

  // Initialize the argument parser

  ArgParser ap(argc, argv);

  int i;

  std::string s;

  double d = 1.0;

  bool b, nh;

  bool g1, g2, g3;

  // Add a mandatory integer option with storage reference

  ap.refOption("n", "An integer input.", i, true);

  // Add a double option with storage reference (the default value is 1.0)

  ap.refOption("val", "A double input.", d);

  // Add a double option without storage reference (the default value is 3.14)

  ap.doubleOption("val2", "A double input.", 3.14);

  // Set synonym for -val option

  ap.synonym("vals", "val");

  // Add a string option

  ap.refOption("name", "A string input.", s);

  // Add bool options

  ap.refOption("f", "A switch.", b)

    .refOption("nohelp", "", nh)

    .refOption("gra", "Choice A", g1)

    .refOption("grb", "Choice B", g2)

    .refOption("grc", "Choice C", g3);

  // Bundle -gr* options into a group

  ap.optionGroup("gr", "gra")

    .optionGroup("gr", "grb")

    .optionGroup("gr", "grc");

  // Set the group mandatory

  ap.mandatoryGroup("gr");

  // Set the options of the group exclusive (only one option can be given)

  ap.onlyOneGroup("gr");

  // Add non-parsed arguments (e.g. input files)

  ap.other("infile", "The input file.")

    .other("...");

  // Perform the parsing process

  // (in case of any error it terminates the program)

  ap.parse();

  // Check each option if it has been given and print its value

  std::cout << "Parameters of '" << ap.commandName() << "':\n";

  std::cout << "  Value of -n: " << i << std::endl;

  if(ap.given("val")) std::cout << "  Value of -val: " << d << std::endl;

  if(ap.given("val2")) {

    d = ap["val2"];

    std::cout << "  Value of -val2: " << d << std::endl;

  }

  if(ap.given("name")) std::cout << "  Value of -name: " << s << std::endl;

  if(ap.given("f")) std::cout << "  -f is given\n";

  if(ap.given("nohelp")) std::cout << "  Value of -nohelp: " << nh << std::endl;

  if(ap.given("gra")) std::cout << "  -gra is given\n";

  if(ap.given("grb")) std::cout << "  -grb is given\n";

  if(ap.given("grc")) std::cout << "  -grc is given\n";

  switch(ap.files().size()) {

  case 0:

    std::cout << "  No file argument was given.\n";

    break;

  case 1:

    std::cout << "  1 file argument was given. It is:\n";

    break;

  default:

    std::cout << "  "

              << ap.files().size() << " file arguments were given. They are:\n";

  }

  for(unsigned int i=0;i<ap.files().size();++i)

    std::cout << "    '" << ap.files()[i] << "'\n";

  return 0;

}

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Copyright (C) 2003-2008

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

/// \ingroup demos

/// \file

/// \brief Demo of the graph drawing function \ref graphToEps()

///

/// This demo program shows examples how to use the function \ref

/// graphToEps(). It takes no input but simply creates seven

/// <tt>.eps</tt> files demonstrating the capability of \ref

/// graphToEps(), and showing how to draw directed graphs,

/// how to handle parallel egdes, how to change the properties (like

/// color, shape, size, title etc.) of nodes and arcs individually

///

/// \include graph_to_eps_demo.cc

#include<lemon/list_graph.h>

#include<lemon/graph_to_eps.h>

#include<lemon/math.h>

using namespace std;

using namespace lemon;

int main()

{

  Palette palette;

  Palette paletteW(true);

  // Create a small digraph

  ListDigraph g;

  typedef ListDigraph::Node Node;

  typedef ListDigraph::NodeIt NodeIt;

  typedef ListDigraph::Arc Arc;

  typedef dim2::Point<int> Point;

  Node n1=g.addNode();

  Node n2=g.addNode();

  Node n3=g.addNode();

  Node n4=g.addNode();

  Node n5=g.addNode();

  ListDigraph::NodeMap<Point> coords(g);

  ListDigraph::NodeMap<double> sizes(g);

  ListDigraph::NodeMap<int> colors(g);

  ListDigraph::NodeMap<int> shapes(g);

  ListDigraph::ArcMap<int> acolors(g);

  ListDigraph::ArcMap<int> widths(g);

  coords[n1]=Point(50,50);  sizes[n1]=1; colors[n1]=1; shapes[n1]=0;

  coords[n2]=Point(50,70);  sizes[n2]=2; colors[n2]=2; shapes[n2]=2;

  coords[n3]=Point(70,70);  sizes[n3]=1; colors[n3]=3; shapes[n3]=0;

  coords[n4]=Point(70,50);  sizes[n4]=2; colors[n4]=4; shapes[n4]=1;

  coords[n5]=Point(85,60);  sizes[n5]=3; colors[n5]=5; shapes[n5]=2;

  Arc a;

  a=g.addArc(n1,n2); acolors[a]=0; widths[a]=1;

  a=g.addArc(n2,n3); acolors[a]=0; widths[a]=1;

  a=g.addArc(n3,n5); acolors[a]=0; widths[a]=3;

  a=g.addArc(n5,n4); acolors[a]=0; widths[a]=1;

  a=g.addArc(n4,n1); acolors[a]=0; widths[a]=1;

  a=g.addArc(n2,n4); acolors[a]=1; widths[a]=2;

  a=g.addArc(n3,n4); acolors[a]=2; widths[a]=1;

  IdMap<ListDigraph,Node> id(g);

  // Create .eps files showing the digraph with different options

  cout << "Create 'graph_to_eps_demo_out_1_pure.eps'" << endl;

  graphToEps(g,"graph_to_eps_demo_out_1_pure.eps").

    coords(coords).

    title("Sample .eps figure").

    copyright("(C) 2003-2008 LEMON Project").

    run();

  cout << "Create 'graph_to_eps_demo_out_2.eps'" << endl;

  graphToEps(g,"graph_to_eps_demo_out_2.eps").

    coords(coords).

    title("Sample .eps figure").

    copyright("(C) 2003-2008 LEMON Project").

    absoluteNodeSizes().absoluteArcWidths().

    nodeScale(2).nodeSizes(sizes).

    nodeShapes(shapes).

    nodeColors(composeMap(palette,colors)).

    arcColors(composeMap(palette,acolors)).

    arcWidthScale(.4).arcWidths(widths).

    nodeTexts(id).nodeTextSize(3).

    run();

  cout << "Create 'graph_to_eps_demo_out_3_arr.eps'" << endl;

  graphToEps(g,"graph_to_eps_demo_out_3_arr.eps").

    title("Sample .eps figure (with arrowheads)").

    copyright("(C) 2003-2008 LEMON Project").

    absoluteNodeSizes().absoluteArcWidths().

    nodeColors(composeMap(palette,colors)).

    coords(coords).

    nodeScale(2).nodeSizes(sizes).

    nodeShapes(shapes).

    arcColors(composeMap(palette,acolors)).

    arcWidthScale(.4).arcWidths(widths).

    nodeTexts(id).nodeTextSize(3).

    drawArrows().arrowWidth(2).arrowLength(2).

    run();

  // Add more arcs to the digraph

  a=g.addArc(n1,n4); acolors[a]=2; widths[a]=1;

  a=g.addArc(n4,n1); acolors[a]=1; widths[a]=2;

  a=g.addArc(n1,n2); acolors[a]=1; widths[a]=1;

  a=g.addArc(n1,n2); acolors[a]=2; widths[a]=1;

EXTRA_DIST += \

	doc/Doxyfile.in \

	doc/coding_style.dox \

	doc/dirs.dox \

	doc/groups.dox \

	doc/lgf.dox \

	doc/license.dox \

	doc/mainpage.dox \

	doc/named-param.dox \

	doc/namespaces.dox \

	doc/html \

	doc/CMakeLists.txt

DOC_EPS_IMAGES18 = \

	nodeshape_0.eps \

	nodeshape_1.eps \

	nodeshape_2.eps \

	nodeshape_3.eps \

	nodeshape_4.eps

DOC_EPS_IMAGES = \

	$(DOC_EPS_IMAGES18)

DOC_PNG_IMAGES = \

	$(DOC_EPS_IMAGES:%.eps=doc/gen-images/%.png)

EXTRA_DIST += $(DOC_EPS_IMAGES:%=doc/images/%)

doc/html:

	$(MAKE) $(AM_MAKEFLAGS) html

GS_COMMAND=gs -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4

$(DOC_EPS_IMAGES18:%.eps=doc/gen-images/%.png): doc/gen-images/%.png: doc/images/%.eps

	-mkdir doc/gen-images

	if test ${gs_found} = yes; then \

	  $(GS_COMMAND) -sDEVICE=pngalpha -r18 -sOutputFile=$@ $<; \

	else \

	  echo; \

	  echo "Ghostscript not found."; \

	  echo; \

	  exit 1; \

	fi

html-local: $(DOC_PNG_IMAGES)

	if test ${doxygen_found} = yes; then \

	  cd doc; \

	  doxygen Doxyfile; \

	  cd ..; \

	else \

	  echo; \

	  echo "Doxygen not found."; \

	  echo; \

	  exit 1; \

	fi

clean-local:

	-rm -rf doc/html

	-rm -f doc/doxygen.log

	-rm -f $(DOC_PNG_IMAGES)

	-rm -rf doc/gen-images

update-external-tags:

	wget -O doc/libstdc++.tag.tmp http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/libstdc++.tag && \

	mv doc/libstdc++.tag.tmp doc/libstdc++.tag || \

	rm doc/libstdc++.tag.tmp

install-html-local: doc/html

	@$(NORMAL_INSTALL)

	$(mkinstalldirs) $(DESTDIR)$(htmldir)/docs

	for p in doc/html/*.{html,css,png,map,gif,tag} ; do \

	  f="`echo $$p | sed -e 's|^.*/||'`"; \

	  echo " $(INSTALL_DATA) $$p $(DESTDIR)$(htmldir)/docs/$$f"; \

	  $(INSTALL_DATA) $$p $(DESTDIR)$(htmldir)/docs/$$f; \

	done

uninstall-local:

	@$(NORMAL_UNINSTALL)

	for p in doc/html/*.{html,css,png,map,gif,tag} ; do \

	  f="`echo $$p | sed -e 's|^.*/||'`"; \

	  echo " rm -f $(DESTDIR)$(htmldir)/docs/$$f"; \

	  rm -f $(DESTDIR)$(htmldir)/docs/$$f; \

	done

.PHONY: update-external-tags

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Copyright (C) 2003-2008

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

/**

@defgroup datas Data Structures

This group describes the several data structures implemented in LEMON.

*/

/**

@defgroup graphs Graph Structures

@ingroup datas

\brief Graph structures implemented in LEMON.

The implementation of combinatorial algorithms heavily relies on

efficient graph implementations. LEMON offers data structures which are

planned to be easily used in an experimental phase of implementation studies,

and thereafter the program code can be made efficient by small modifications.

The most efficient implementation of diverse applications require the

usage of different physical graph implementations. These differences

appear in the size of graph we require to handle, memory or time usage

limitations or in the set of operations through which the graph can be

accessed.  LEMON provides several physical graph structures to meet

the diverging requirements of the possible users.  In order to save on

running time or on memory usage, some structures may fail to provide

some graph features like arc/edge or node deletion.

You are free to use the graph structure that fit your requirements

the best, most graph algorithms and auxiliary data structures can be used

*/

/**

@defgroup maps Maps

@ingroup datas

\brief Map structures implemented in LEMON.

This group describes the map structures implemented in LEMON.

new maps from existing ones.

*/

/**

@defgroup graph_maps Graph Maps

@ingroup maps

\brief Special graph-related maps.

This group describes maps that are specifically designed to assign

values to the nodes and arcs of graphs.

*/

/**

\defgroup map_adaptors Map Adaptors

\ingroup maps

\brief Tools to create new maps from existing ones

This group describes map adaptors that are used to create "implicit"

maps from other maps.

Most of them are \ref lemon::concepts::ReadMap "read-only maps".

They can make arithmetic and logical operations between one or two maps

(negation, shifting, addition, multiplication, logical 'and', 'or',

'not' etc.) or e.g. convert a map to another one of different Value type.

The typical usage of this classes is passing implicit maps to

algorithms.  If a function type algorithm is called then the function

type map adaptors can be used comfortable. For example let's see the

\code

  Color nodeColor(int deg) {

    if (deg >= 2) {

      return Color(0.5, 0.0, 0.5);

    } else if (deg == 1) {

      return Color(1.0, 0.5, 1.0);

    } else {

      return Color(0.0, 0.0, 0.0);

    }

  }

  Digraph::NodeMap<int> degree_map(graph);

    .coords(coords).scaleToA4().undirected()

    .nodeColors(composeMap(functorToMap(nodeColor), degree_map))

    .run();

\endcode

The \c functorToMap() function makes an \c int to \c Color map from the

and the previously created map. The composed map is a proper function to

get the color of each node.

The usage with class type algorithms is little bit harder. In this

case the function type map adaptors can not be used, because the

function map adaptors give back temporary objects.

\code

  Digraph graph;

  typedef Digraph::ArcMap<double> DoubleArcMap;

  DoubleArcMap length(graph);

  DoubleArcMap speed(graph);

  typedef DivMap<DoubleArcMap, DoubleArcMap> TimeMap;

  TimeMap time(length, speed);

  Dijkstra<Digraph, TimeMap> dijkstra(graph, time);

  dijkstra.run(source, target);

\endcode

We have a length map and a maximum speed map on the arcs of a digraph.

The minimum time to pass the arc can be calculated as the division of

the two maps which can be done implicitly with the \c DivMap template

class. We use the implicit minimum time map as the length map of the

\c Dijkstra algorithm.

*/

/**

@defgroup paths Path Structures

@ingroup datas

\brief Path structures implemented in LEMON.

This group describes the path structures implemented in LEMON.

LEMON provides flexible data structures to work with paths.

All of them have similar interfaces and they can be copied easily with

assignment operators and copy constructors. This makes it easy and

efficient to have e.g. the Dijkstra algorithm to store its result in

any kind of path structure.

\sa lemon::concepts::Path

*/

/**

@defgroup auxdat Auxiliary Data Structures

@ingroup datas

\brief Auxiliary data structures implemented in LEMON.

This group describes some data structures implemented in LEMON in

order to make it easier to implement combinatorial algorithms.

*/

/**

@defgroup algs Algorithms

\brief This group describes the several algorithms

implemented in LEMON.

This group describes the several algorithms

implemented in LEMON.

*/

/**

@defgroup search Graph Search

@ingroup algs

\brief Common graph search algorithms.

This group describes the common graph search algorithms like

*/

/**

@ingroup algs

\brief Algorithms for finding shortest paths.

This group describes the algorithms for finding shortest paths in graphs.

*/

/**

@ingroup algs

\brief Algorithms for finding a minimum cost spanning tree in a graph.

This group describes the algorithms for finding a minimum cost spanning

tree in a graph