message: Remove Simplex tree edge contraction that seg fault
diff: @@ -16,6 +16,11 @@ class ST_wrapper {
  public:
  void insert_simplex(const Simplex& tau) {
  + /*std::cout << "insert_simplex - " << simplexTree.num_simplices() << " - ";
  + for (auto v : tau)
  + std::cout << v << ", ";
  + std::cout << std::endl;
  + */
  simplexTree.insert_simplex_and_subfaces(tau);
  }
  @@ -24,17 +29,7 @@ public:
  }
  Vertex contraction(const Vertex x, const Vertex y) {
  - Simplex sx; sx.insert(x);
  - auto hx = simplexTree.find(sx);
  - if(hx != simplexTree.null_simplex())
  - for(auto h : simplexTree.cofaces_simplex_range(hx,0)){
  - auto sr = simplexTree.simplex_vertex_range(h);
  - Simplex sigma(sr.begin(),sr.end());
  - erase_max(sigma);
  - sigma.erase(x);
  - sigma.insert(y);
  - insert_simplex(sigma);
  - }
  + // TODO (VR): edge contraction is not yet available for Simplex_tree
  return y;
  }
  @@ -64,7 +59,7 @@ Simplex random_simplex(int n, std::size_t d){
  std::mt19937 gen(rd());
  std::uniform_int_distribution<std::size_t> dis(1, n);
  Simplex s;
  - while(s.size()!=d)
  + while(s.size() < d)
  s.insert(dis(gen));
  return s;
  }
  @@ -95,7 +90,7 @@ void chrono(int n, int d){
  K.membership(s);
  start = std::chrono::system_clock::now();
  - for(int i = 0; i<=nb_contraction; i++)
  + for(int i = 1; i<=nb_contraction; i++)
  K.contraction(n-2*i,n-2*i-1);
  end = std::chrono::system_clock::now();
  auto c3 = std::chrono::duration_cast<std::chrono::milliseconds>(end-start).count();
  