src/TrackFitting/KalmanFitterError.cpp

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 #include "Acts/TrackFitting/KalmanFitterError.hpp"
0010
0011 #include <string>
0012
0013 namespace {
0014
0015 class KalmanFitterErrorCategory : public std::error_category {
0016  public:
0017   // Return a short descriptive name for the category.
0018   const char* name() const noexcept final { return "KalmanFitterError"; }
0019
0020   // Return what each enum means in text.
0021   std::string message(int c) const final {
0022     using Acts::KalmanFitterError;
0023
0024     switch (static_cast<KalmanFitterError>(c)) {
0025       case KalmanFitterError::UpdateFailed:
0026         return "Kalman update failed";
0027       case KalmanFitterError::SmoothFailed:
0028         return "Kalman smooth failed";
0029       case KalmanFitterError::OutputConversionFailed:
0030         return "Kalman output conversion failed";
0031       case KalmanFitterError::NoMeasurementFound:
0032         return "No measurement detected during the propagation";
0033       case KalmanFitterError::ReversePropagationFailed:
0034         return "Reverse propagation failed";
0035       default:
0036         return "unknown";
0037     }
0038   }
0039 };
0040
0041 }  // namespace
0042
0043 std::error_code Acts::make_error_code(Acts::KalmanFitterError e) {
0044   static KalmanFitterErrorCategory c;
0045   return {static_cast<int>(e), c};
0046 }