Acts/TrackFinding/CombinatorialKalmanFilterError.hpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #pragma once
0010
0011 #include <system_error>
0012 #include <type_traits>
0013
0014 namespace Acts {
0015
0016 /// Error codes for combinatorial Kalman filter operations
0017 enum class CombinatorialKalmanFilterError {
0018   // ensure all values are non-zero
0019   UpdateFailed = 1,
0020   SmoothFailed,
0021   OutputConversionFailed,
0022   MeasurementSelectionFailed,
0023   PropagationReachesMaxSteps,
0024   NoMeasurementExpected
0025 };
0026
0027 /// Create error code from @ref CombinatorialKalmanFilterError
0028 /// @param e The error code enum value
0029 /// @return Standard error code
0030 std::error_code make_error_code(Acts::CombinatorialKalmanFilterError e);
0031
0032 }  // namespace Acts
0033
0034 namespace std {
0035 // register with STL
0036 template <>
0037 struct is_error_code_enum<Acts::CombinatorialKalmanFilterError>
0038     : std::true_type {};
0039 }  // namespace std