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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7593 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//=======================================================================
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// Copyright 2002 Indiana University.
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// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//=======================================================================
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#ifndef BOOST_GRAPH_SELECTORS_HPP
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#define BOOST_GRAPH_SELECTORS_HPP
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#include <boost/mpl/bool.hpp>
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namespace boost {
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//===========================================================================
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// Selectors for the Directed template parameter of adjacency_list
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// and adjacency_matrix.
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struct directedS { enum { is_directed = true, is_bidir = false };
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typedef mpl::true_ is_directed_t;
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typedef mpl::false_ is_bidir_t;
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};
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struct undirectedS {
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enum { is_directed = false, is_bidir = false };
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typedef mpl::false_ is_directed_t;
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typedef mpl::false_ is_bidir_t;
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};
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struct bidirectionalS {
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enum { is_directed = true, is_bidir = true };
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typedef mpl::true_ is_directed_t;
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typedef mpl::true_ is_bidir_t;
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};
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} // namespace boost
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#endif // BOOST_GRAPH_SELECTORS_HPP
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