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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/graph/example/accum-compile-times.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/boost/libs/graph/example/accum-compile-times.cpp b/src/boost/libs/graph/example/accum-compile-times.cpp new file mode 100644 index 00000000..d4db2cf4 --- /dev/null +++ b/src/boost/libs/graph/example/accum-compile-times.cpp @@ -0,0 +1,95 @@ +//======================================================================= +// Copyright 2001 Jeremy G. Siek, Andrew Lumsdaine, Lie-Quan Lee, +// +// 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) +//======================================================================= +#include <boost/config.hpp> +#include <fstream> +#include <iostream> +#include <numeric> +#include <iterator> +#include <string> +#include <boost/graph/adjacency_list.hpp> +#include <boost/graph/property_iter_range.hpp> + +namespace std +{ + template < typename T > + std::istream& operator >> (std::istream& in, std::pair < T, T > &p) + { + in >> p.first >> p.second; + return in; + } +} + +namespace boost +{ + enum vertex_compile_cost_t { vertex_compile_cost }; + BOOST_INSTALL_PROPERTY(vertex, compile_cost); +} + +using namespace boost; + +typedef adjacency_list< listS, // Store out-edges of each vertex in a std::list + listS, // Store vertex set in a std::list + directedS, // The file dependency graph is directed + // vertex properties + property < vertex_name_t, std::string, + property < vertex_compile_cost_t, float, + property < vertex_distance_t, float, + property < vertex_color_t, default_color_type > > > >, + // an edge property + property < edge_weight_t, float > > + file_dep_graph2; + +typedef graph_traits<file_dep_graph2>::vertex_descriptor vertex_t; +typedef graph_traits<file_dep_graph2>::edge_descriptor edge_t; + +int +main(int argc, const char** argv) +{ + std::ifstream file_in(argc >= 2 ? argv[1] : "makefile-dependencies.dat"); + typedef graph_traits<file_dep_graph2>::vertices_size_type size_type; + size_type n_vertices; + file_in >> n_vertices; // read in number of vertices +#if defined(BOOST_MSVC) && BOOST_MSVC <= 1300 + // std::istream_iterator causes trouble with VC++ + std::vector<vertex_t> id2vertex; + file_dep_graph2 g; + for (std::size_t i = 0; i < n_vertices; ++i) + id2vertex.push_back(add_vertex(g)); + std::pair<size_type, size_type> p; + while (file_in >> p) + add_edge(id2vertex[p.first], id2vertex[p.second], g); +#else + std::istream_iterator<std::pair<size_type, size_type> > + input_begin(file_in), input_end; + file_dep_graph2 g(input_begin, input_end, n_vertices); +#endif + + typedef property_map < file_dep_graph2, vertex_name_t >::type name_map_t; + typedef property_map < file_dep_graph2, vertex_compile_cost_t >::type + compile_cost_map_t; + + name_map_t name_map = get(vertex_name, g); + compile_cost_map_t compile_cost_map = get(vertex_compile_cost, g); + + std::ifstream name_in(argc >= 3 ? argv[2] : "makefile-target-names.dat"); + std::ifstream compile_cost_in(argc >= 4 ? argv[3] : "target-compile-costs.dat"); + graph_traits < file_dep_graph2 >::vertex_iterator vi, vi_end; + for (boost::tie(vi, vi_end) = vertices(g); vi != vi_end; ++vi) { + name_in >> name_map[*vi]; + compile_cost_in >> compile_cost_map[*vi]; + } + + graph_property_iter_range < file_dep_graph2, + vertex_compile_cost_t >::iterator ci, ci_end; + boost::tie(ci, ci_end) = get_property_iter_range(g, vertex_compile_cost); + std::cout << "total (sequential) compile time: " + << std::accumulate(ci, ci_end, 0.0) << std::endl; + + return 0; +} + |