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[SVN r8792]
This commit is contained in:
Jeremy Siek
2001-01-27 21:20:49 +00:00
parent 15b4af5e2b
commit c5ba516e61
1 changed files with 27 additions and 0 deletions
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include/boost/graph/graph_selectors.hpp Normal file
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#ifndef BOOST_GRAPH_SELECTORS_HPP
#define BOOST_GRAPH_SELECTORS_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 true_type is_directed_t;
typedef false_type is_bidir_t;
};
struct undirectedS {
enum { is_directed = false, is_bidir = false };
typedef false_type is_directed_t;
typedef false_type is_bidir_t;
};
struct bidirectionalS {
enum { is_directed = true, is_bidir = true };
typedef true_type is_directed_t;
typedef true_type is_bidir_t;
};
} // namespace boost
#endif // BOOST_GRAPH_SELECTORS_HPP