You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
38 lines
1.2 KiB
38 lines
1.2 KiB
//======================================================================= |
|
// Copyright 2002 Indiana University. |
|
// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek |
|
// |
|
// Distributed under the Boost Software License, Version 1.0. (See |
|
// accompanying file LICENSE_1_0.txt or copy at |
|
// http://www.boost.org/LICENSE_1_0.txt) |
|
//======================================================================= |
|
|
|
#ifndef BOOST_GRAPH_SELECTORS_HPP |
|
#define BOOST_GRAPH_SELECTORS_HPP |
|
|
|
#include <boost/mpl/bool.hpp> |
|
|
|
namespace boost { |
|
|
|
//=========================================================================== |
|
// Selectors for the Directed template parameter of adjacency_list |
|
// and adjacency_matrix. |
|
|
|
struct directedS { enum { is_directed = true, is_bidir = false }; |
|
typedef mpl::true_ is_directed_t; |
|
typedef mpl::false_ is_bidir_t; |
|
}; |
|
struct undirectedS { |
|
enum { is_directed = false, is_bidir = false }; |
|
typedef mpl::false_ is_directed_t; |
|
typedef mpl::false_ is_bidir_t; |
|
}; |
|
struct bidirectionalS { |
|
enum { is_directed = true, is_bidir = true }; |
|
typedef mpl::true_ is_directed_t; |
|
typedef mpl::true_ is_bidir_t; |
|
}; |
|
|
|
} // namespace boost |
|
|
|
#endif // BOOST_GRAPH_SELECTORS_HPP
|
|
|