diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/stdapis/boost/graph/bandwidth.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/epoc32/include/stdapis/boost/graph/bandwidth.hpp Tue Mar 16 16:12:26 2010 +0000 @@ -0,0 +1,83 @@ +// Copyright (c) Jeremy Siek 2001, Marc Wintermantel 2002 +// +// 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_BANDWIDTH_HPP +#define BOOST_GRAPH_BANDWIDTH_HPP + +#include // for std::min and std::max +#include +#include +#include + +namespace boost { + + template + typename graph_traits::vertices_size_type + ith_bandwidth(typename graph_traits::vertex_descriptor i, + const Graph& g, + VertexIndexMap index) + { + BOOST_USING_STD_MAX(); + typedef typename graph_traits::vertices_size_type size_type; + size_type b = 0; + typename graph_traits::out_edge_iterator e, end; + for (tie(e, end) = out_edges(i, g); e != end; ++e) { + int f_i = get(index, i); + int f_j = get(index, target(*e, g)); + using namespace std; // to call abs() unqualified + if(f_i > f_j) + b = max BOOST_PREVENT_MACRO_SUBSTITUTION (b, size_type(f_i - f_j)); + } + return b; + } + + template + typename graph_traits::vertices_size_type + ith_bandwidth(typename graph_traits::vertex_descriptor i, + const Graph& g) + { + return ith_bandwidth(i, g, get(vertex_index, g)); + } + + template + typename graph_traits::vertices_size_type + bandwidth(const Graph& g, VertexIndexMap index) + { + BOOST_USING_STD_MAX(); + typename graph_traits::vertices_size_type b = 0; + typename graph_traits::vertex_iterator i, end; + for (tie(i, end) = vertices(g); i != end; ++i) + b = max BOOST_PREVENT_MACRO_SUBSTITUTION (b, ith_bandwidth(*i, g, index)); + return b; + } + + template + typename graph_traits::vertices_size_type + bandwidth(const Graph& g) + { + return bandwidth(g, get(vertex_index, g)); + } + + template + typename graph_traits::vertices_size_type + edgesum(const Graph& g, VertexIndexMap index_map) + { + typedef typename graph_traits::vertices_size_type size_type; + typedef typename detail::numeric_traits::difference_type diff_t; + size_type sum = 0; + typename graph_traits::edge_iterator i, end; + for (tie(i, end) = edges(g); i != end; ++i) { + diff_t f_u = get(index_map, source(*i, g)); + diff_t f_v = get(index_map, target(*i, g)); + using namespace std; // to call abs() unqualified + sum += abs(f_u - f_v); + } + return sum; + } + +} // namespace boost + +#endif // BOOST_GRAPH_BANDWIDTH_HPP