Trackable.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef O2_MCH_TRACKABLE_H
#define O2_MCH_TRACKABLE_H
 
#include <array>
#include <functional>
#include <gsl/span>
 
namespace o2::mch
{
 
bool isTrackable(std::array<int, 10> itemsPerChamber,
                 std::array<bool, 5> requestStation = {true, true, true, true, true},
                 bool moreCandidates = false);
 
template <typename T>
std::array<int, 10> perChamber(gsl::span<const T> items);
 
template <typename T1, typename T2>
std::array<int, 10> perChamber(gsl::span<const T1> items, gsl::span<const T2> subitems);
 
template <typename T>
std::array<int, 5> perStation(gsl::span<const T> items)
{
  std::array<int, 5> st{};
  std::array<int, 10> ch = perChamber(items);
  for (auto i = 0; i < st.size(); ++i) {
    st[i] = ch[2 * i] + ch[2 * i + 1];
  }
  return st;
}
 
} // namespace o2::mch
 
#endif