message: Mark functions as inline.
diff: @@ -36,7 +36,7 @@ namespace Gudhi {
  namespace persistence_diagram {
  -double bottleneck_distance_approx(Persistence_graph& g, double e) {
  +inline double bottleneck_distance_approx(Persistence_graph& g, double e) {
  double b_lower_bound = 0.;
  double b_upper_bound = g.diameter_bound();
  const double alpha = std::pow(g.size(), 1. / 5.);
  @@ -66,7 +66,7 @@ double bottleneck_distance_approx(Persistence_graph& g, double e) {
  return (b_lower_bound + b_upper_bound) / 2.;
  }
  -double bottleneck_distance_exact(Persistence_graph& g) {
  +inline double bottleneck_distance_exact(Persistence_graph& g) {
  std::vector<double> sd = g.sorted_distances();
  long lower_bound_i = 0;
  long upper_bound_i = sd.size() - 1;
  