COIN-OR::LEMON - Graph Library

source: lemon-tutorial/getting_started.dox @ 32:ef12f83752f6

Last change on this file since 32:ef12f83752f6 was 32:ef12f83752f6, checked in by Peter Kovacs <kpeter@…>, 10 years ago

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1/* -*- mode: C++; indent-tabs-mode: nil; -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library.
4 *
5 * Copyright (C) 2003-2010
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19namespace lemon {
20/**
21[PAGE]sec_hello_lemon[PAGE] Compile Your First Code
22
23First of all, you have to install LEMON on your system (see the
24<a href="http://lemon.cs.elte.hu/trac/lemon/wiki/InstallGuide"><b>Installation
25Guide</b></a> for instructions).
26In this section, we assume that you use a Linux environment and
27<a href="http://gcc.gnu.org/">GCC</a> compiler.
28
29Once you have installed the library, you may paste the following code segment
30into a file <tt>hello_lemon.cc</tt> to have a first working program that uses
31LEMON.
32
33\dontinclude hello_lemon.cc
34\skip #include
35\until }
36
37In this small example, a directed graph is created with two nodes and
38an arc added to it.
39
40Now let us compile this code.
41(We suppose that you have it in a file called <tt>hello_lemon.cc</tt>.)
42
43If LEMON is installed <b>system-wide</b> (into directory \c /usr/local),
44then it is very easy to compile this program with the
45following command (the argument <tt>-lemon</tt> tells the compiler
46that we are using the installed LEMON).
47
48\verbatim
49g++ -o hello_lemon hello_lemon.cc -lemon
50\endverbatim
51
52As a result you will get the exacutable \c hello_lemon in the current
53directory, which you can run by the following command.
54
55\verbatim
56./hello_lemon
57\endverbatim
58
59If LEMON is installed <b>user-local</b> into a directory
60(e.g. <tt>~/lemon</tt>), then compiling the code is a bit more difficult.
61You have to issue a command like this.
62
63\verbatim
64g++ -o hello_lemon -I ~/lemon/include hello_lemon.cc -L ~/lemon/lib -lemon
65\endverbatim
66
67If everything has gone well, then our program prints out the followings.
68
69\verbatim
70Hello World! This is LEMON library here.
71We have a directed graph with 2 nodes and 1 arc.
72\endverbatim
73
74If you managed to compile and run this example code without any problems,
75you may go on reading this tutorial to get to know the basic notions,
76features and tools of LEMON. However, if you encountered problems that
77you did not manage to solve, do not hesitate to
78<a href="mailto:lemon-user@lemon.cs.elte.hu"><b>contact us</b></a>.
79
80[TRAILER]
81*/
82}
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