KalmanFitterError.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2019-2020 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include <system_error>
#include <type_traits>

namespace Acts {

enum class KalmanFitterError {
  // ensure all values are non-zero
  ForwardUpdateFailed = 1,
  BackwardUpdateFailed,
  SmoothFailed,
  OutputConversionFailed,
  NoMeasurementFound,
  ReverseNavigationFailed,
};

std::error_code make_error_code(Acts::KalmanFitterError e);

}  // namespace Acts

namespace std {
// register with STL
template <>
struct is_error_code_enum<Acts::KalmanFitterError> : std::true_type {};
}  // namespace std