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diff --git a/example/Simplex_tree/graph_expansion_with_blocker.cpp b/example/Simplex_tree/graph_expansion_with_blocker.cpp
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--- a/example/Simplex_tree/graph_expansion_with_blocker.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): Vincent Rouvreau
- *
- * 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/Simplex_tree.h>
-
-#include <iostream>
-
-using Simplex_tree = Gudhi::Simplex_tree<>;
-using Simplex_handle = Simplex_tree::Simplex_handle;
-
-int main(int argc, char* const argv[]) {
- // Construct the Simplex Tree with a 1-skeleton graph example
- Simplex_tree stree;
-
- stree.insert_simplex({0, 1}, 0.);
- stree.insert_simplex({0, 2}, 1.);
- stree.insert_simplex({0, 3}, 2.);
- stree.insert_simplex({1, 2}, 3.);
- stree.insert_simplex({1, 3}, 4.);
- stree.insert_simplex({2, 3}, 5.);
- stree.insert_simplex({2, 4}, 6.);
- stree.insert_simplex({3, 6}, 7.);
- stree.insert_simplex({4, 5}, 8.);
- stree.insert_simplex({4, 6}, 9.);
- stree.insert_simplex({5, 6}, 10.);
- stree.insert_simplex({6}, 10.);
-
- stree.expansion_with_blockers(3, [&](Simplex_handle sh) {
- bool result = false;
- std::cout << "Blocker on [";
- // User can loop on the vertices from the given simplex_handle i.e.
- for (auto vertex : stree.simplex_vertex_range(sh)) {
- // We block the expansion, if the vertex '6' is in the given list of vertices
- if (vertex == 6) result = true;
- std::cout << vertex << ", ";
- }
- std::cout << "] ( " << stree.filtration(sh);
- // User can re-assign a new filtration value directly in the blocker (default is the maximal value of boudaries)
- stree.assign_filtration(sh, stree.filtration(sh) + 1.);
-
- std::cout << " + 1. ) = " << result << std::endl;
-
- return result;
- });
-
- std::cout << "********************************************************************\n";
- std::cout << "* The complex contains " << stree.num_simplices() << " simplices";
- std::cout << " - dimension " << stree.dimension() << "\n";
- std::cout << "* Iterator on Simplices in the filtration, with [filtration value]:\n";
- for (auto f_simplex : stree.filtration_simplex_range()) {
- std::cout << " "
- << "[" << stree.filtration(f_simplex) << "] ";
- for (auto vertex : stree.simplex_vertex_range(f_simplex)) std::cout << "(" << vertex << ")";
- std::cout << std::endl;
- }
-
- return 0;
-}