Acts/TrackFitting/GsfError.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 Gaussian Sum Filter operations
0017 enum class GsfError {
0018   StartParametersHaveNoCovariance,
0019   NoMeasurementStatesCreatedForward,
0020   NoMeasurementStatesCreatedBackward,
0021   NoMeasurementStatesCreatedFinal,
0022 };
0023
0024 /// Create error code from @ref GsfError
0025 /// @param e The error code enum value
0026 /// @return Standard error code
0027 std::error_code make_error_code(GsfError e);
0028
0029 }  // namespace Acts
0030
0031 // register with STL
0032 namespace std {
0033 template <>
0034 struct is_error_code_enum<Acts::GsfError> : std::true_type {};
0035 }  // namespace std