source: NonGTP/Boost/boost/graph/exception.hpp @ 857

Revision 857, 1.3 KB checked in by igarcia, 19 years ago (diff)
Line 
1//=======================================================================
2// Copyright 2002 Indiana University.
3// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
4//
5// Distributed under the Boost Software License, Version 1.0. (See
6// accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt)
8//=======================================================================
9
10#ifndef BOOST_GRAPH_EXCEPTION_HPP
11#define BOOST_GRAPH_EXCEPTION_HPP
12
13#include <stdexcept>
14#include <string>
15
16namespace boost {
17
18  struct bad_graph : public std::invalid_argument {
19    bad_graph(const std::string& what_arg)
20      : std::invalid_argument(what_arg) { }
21  };
22
23  struct not_a_dag : public bad_graph {
24    not_a_dag()
25        : bad_graph("The graph must be a DAG.") { }
26  };
27
28  struct negative_edge : public bad_graph {
29    negative_edge()
30      : bad_graph("The graph may not contain an edge with negative weight."){ }
31  };
32
33  struct negative_cycle : public bad_graph {
34    negative_cycle()
35      : bad_graph("The graph may not contain negative cycles.") { }
36  };
37  struct not_connected : public bad_graph {
38    not_connected()
39      : bad_graph("The graph must be connected.") { }
40  };
41
42} // namespace boost
43
44#endif // BOOST_GRAPH_EXCEPTION_HPP
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