DecayNode.cc

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#include <analysis/utility/DecayNode.h>
#include <sstream>
 
namespace Belle2 {
  bool DecayNode::find_decay(const DecayNode& to_find) const
  {
    if (to_find == (*this))
      return true;
    for (const auto& node : daughters) {
      if (node.find_decay(to_find))
        return true;
    }
    return false;
  }
 
  std::string DecayNode::print_node(unsigned int indent) const
  {
    std::stringstream output;
 
    for (unsigned int i = 0; i < indent; ++i) {
      output << "    ";
    }
 
    output << std::to_string(pdg);
    output << std::endl;
 
    for (const auto& d : daughters) {
      output << d.print_node(indent + 1);
    }
 
    return output.str();
  }
 
  bool operator==(const DecayNode& node1, const DecayNode& node2)
  {
    if (node1.pdg == node2.pdg) {
      if (node1.daughters.size() > 0 and node2.daughters.size() > 0) {
        if (node1.daughters.size() != node2.daughters.size())
          return false;
        for (unsigned int i = 0; i < node1.daughters.size(); ++i) {
          if (node1.daughters[i] != node2.daughters[i])
            if (node1.daughters[i] != 0 and node2.daughters[i] != 0)
              return false;
        }
      }
      return true;
    }
    return false;
  }
 
  bool operator!=(const DecayNode& node1, const DecayNode& node2)
  {
    return not(node1 == node2);
  }
 
}