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diff --git a/example/Skeleton_blocker/Skeleton_blocker_iteration.cpp b/example/Skeleton_blocker/Skeleton_blocker_iteration.cpp
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-/* This file is part of the Gudhi Library. The Gudhi library
- * (Geometric Understanding in Higher Dimensions) is a generic C++
- * library for computational topology.
- *
- * Author(s): David Salinas
- *
- * Copyright (C) 2014 Inria
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <gudhi/Skeleton_blocker.h>
-#include <gudhi/Clock.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string>
-#include <fstream>
-#include <sstream>
-
-typedef Gudhi::skeleton_blocker::Skeleton_blocker_simple_traits Traits;
-typedef Gudhi::skeleton_blocker::Skeleton_blocker_complex<Traits> Complex;
-typedef Complex::Vertex_handle Vertex_handle;
-typedef Complex::Simplex Simplex;
-
-Complex build_complete_complex(int n) {
- // build a full complex with n vertices and 2^n-1 simplices
- Complex complex;
- for (int i = 0; i < n; i++)
- complex.add_vertex();
- for (int i = 0; i < n; i++)
- for (int j = 0; j < i; j++)
- complex.add_edge_without_blockers(Vertex_handle(i), Vertex_handle(j));
- return complex;
-}
-
-int main(int argc, char *argv[]) {
- Gudhi::Clock skbl_chrono("Time to build the complete complex, enumerate simplices and Euler Characteristic");
- const int n = 15;
-
- // build a full complex with n vertices and 2^n-1 simplices
- Complex complex(build_complete_complex(n));
-
- // this is just to illustrate iterators, to count number of vertices
- // or edges, complex.num_vertices() and complex.num_edges() are
- // more appropriated!
- unsigned num_vertices = 0;
- for (auto v : complex.vertex_range()) {
- std::cout << "Vertex " << v << std::endl;
- ++num_vertices;
- }
-
- // such loop can also be done directly with distance as iterators are STL compliant
- auto edges = complex.edge_range();
- unsigned num_edges = std::distance(edges.begin(), edges.end());
-
- unsigned euler = 0;
- unsigned num_simplices = 0;
- // we use a reference to a simplex instead of a copy
- // value here because a simplex is a set of integers
- // and copying it cost time
- for (const Simplex & s : complex.complex_simplex_range()) {
- ++num_simplices;
- if (s.dimension() % 2 == 0)
- euler += 1;
- else
- euler -= 1;
- }
- std::cout << "Saw " << num_vertices << " vertices, " << num_edges << " edges and " << num_simplices << " simplices"
- << std::endl;
- std::cout << "The Euler Characteristic is " << euler << std::endl;
- std::cout << skbl_chrono;
- return EXIT_SUCCESS;
-}