MapSelector has become a standalone class.
2 * demo/reader_writer_demo.cc - Part of LEMON, a generic C++ optimization
5 * Copyright (C) 2006 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
6 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 * Permission to use, modify and distribute this software is granted
9 * provided that this copyright notice appears in all copies. For
10 * precise terms see the accompanying LICENSE file.
12 * This software is provided "AS IS" with no warranty of any kind,
13 * express or implied, and with no claim as to its suitability for any
20 ///\brief Demonstrating graph input and output
22 /// This simple demo program gives an example of how to read and write
23 /// a graph and additional maps (on the nodes or the edges) from/to a
26 /// \include reader_writer_demo.cc
29 #include <lemon/smart_graph.h>
30 #include <lemon/graph_reader.h>
31 #include <lemon/graph_writer.h>
34 using namespace lemon;
40 std::string filename="sample.lgf";
41 GraphReader<SmartGraph> reader(filename,graph);
42 SmartGraph::EdgeMap<int> cap(graph);
43 reader.readEdgeMap("capacity",cap);
46 std::cout << "Hello! We have read a graph from file " << filename<<
47 " and some maps on it:\n now we write it to the standard output!" <<
51 GraphWriter<SmartGraph> writer(std::cout, graph);
52 writer.writeEdgeMap("multiplicity", cap);
55 } catch (DataFormatError& error) {
56 std::cerr << error.what() << std::endl;